CopperSpice API  1.7.2
QGLShaderProgram Class Reference

The QGLShaderProgram class allows OpenGL shader programs to be linked and used. More...

Inheritance diagram for QGLShaderProgram:
QObject

Public Methods

 QGLShaderProgram (const QGLContext *context, QObject *parent=nullptr)
 
 QGLShaderProgram (QObject *parent=nullptr)
 
virtual ~QGLShaderProgram ()
 
bool addShader (QGLShader *shader)
 
bool addShaderFromSourceCode (QGLShader::ShaderType type, const char *source)
 
bool addShaderFromSourceCode (QGLShader::ShaderType type, const QByteArray &source)
 
bool addShaderFromSourceCode (QGLShader::ShaderType type, const QString &source)
 
bool addShaderFromSourceFile (QGLShader::ShaderType type, const QString &fileName)
 
int attributeLocation (const char *name) const
 
int attributeLocation (const QByteArray &name) const
 
int attributeLocation (const QString &name) const
 
bool bind ()
 
void bindAttributeLocation (const char *name, int location)
 
void bindAttributeLocation (const QByteArray &name, int location)
 
void bindAttributeLocation (const QString &name, int location)
 
void disableAttributeArray (const char *name)
 
void disableAttributeArray (int location)
 
void enableAttributeArray (const char *name)
 
void enableAttributeArray (int location)
 
GLenum geometryInputType () const
 
GLenum geometryOutputType () const
 
int geometryOutputVertexCount () const
 
bool isLinked () const
 
virtual bool link ()
 
QString log () const
 
int maxGeometryOutputVertices () const
 
GLuint programId () const
 
void release ()
 
void removeAllShaders ()
 
void removeShader (QGLShader *shader)
 
void setAttributeArray (const char *name, const GLfloat *values, int tupleSize, int stride=0)
 
void setAttributeArray (const char *name, const QVector2D *values, int stride=0)
 
void setAttributeArray (const char *name, const QVector3D *values, int stride=0)
 
void setAttributeArray (const char *name, const QVector4D *values, int stride=0)
 
void setAttributeArray (const char *name, GLenum type, const void *values, int tupleSize, int stride=0)
 
void setAttributeArray (int location, const GLfloat *values, int tupleSize, int stride=0)
 
void setAttributeArray (int location, const QVector2D *values, int stride=0)
 
void setAttributeArray (int location, const QVector3D *values, int stride=0)
 
void setAttributeArray (int location, const QVector4D *values, int stride=0)
 
void setAttributeArray (int location, GLenum type, const void *values, int tupleSize, int stride=0)
 
void setAttributeBuffer (const char *name, GLenum type, int offset, int tupleSize, int stride=0)
 
void setAttributeBuffer (int location, GLenum type, int offset, int tupleSize, int stride=0)
 
void setAttributeValue (const char *name, const GLfloat *values, int columns, int rows)
 
void setAttributeValue (const char *name, const QColor &value)
 
void setAttributeValue (const char *name, const QVector2D &value)
 
void setAttributeValue (const char *name, const QVector3D &value)
 
void setAttributeValue (const char *name, const QVector4D &value)
 
void setAttributeValue (const char *name, GLfloat value)
 
void setAttributeValue (const char *name, GLfloat x, GLfloat y)
 
void setAttributeValue (const char *name, GLfloat x, GLfloat y, GLfloat z)
 
void setAttributeValue (const char *name, GLfloat x, GLfloat y, GLfloat z, GLfloat w)
 
void setAttributeValue (int location, const GLfloat *values, int columns, int rows)
 
void setAttributeValue (int location, const QColor &value)
 
void setAttributeValue (int location, const QVector2D &value)
 
void setAttributeValue (int location, const QVector3D &value)
 
void setAttributeValue (int location, const QVector4D &value)
 
void setAttributeValue (int location, GLfloat value)
 
void setAttributeValue (int location, GLfloat x, GLfloat y)
 
void setAttributeValue (int location, GLfloat x, GLfloat y, GLfloat z)
 
void setAttributeValue (int location, GLfloat x, GLfloat y, GLfloat z, GLfloat w)
 
void setGeometryInputType (GLenum inputType)
 
void setGeometryOutputType (GLenum outputType)
 
void setGeometryOutputVertexCount (int count)
 
void setUniformValue (const char *name, const GLfloat value[2][2])
 
void setUniformValue (const char *name, const GLfloat value[3][3])
 
void setUniformValue (const char *name, const GLfloat value[4][4])
 
void setUniformValue (const char *name, const QColor &color)
 
void setUniformValue (const char *name, const QMatrix2x2 &value)
 
void setUniformValue (const char *name, const QMatrix2x3 &value)
 
void setUniformValue (const char *name, const QMatrix2x4 &value)
 
void setUniformValue (const char *name, const QMatrix3x2 &value)
 
void setUniformValue (const char *name, const QMatrix3x3 &value)
 
void setUniformValue (const char *name, const QMatrix3x4 &value)
 
void setUniformValue (const char *name, const QMatrix4x2 &value)
 
void setUniformValue (const char *name, const QMatrix4x3 &value)
 
void setUniformValue (const char *name, const QMatrix4x4 &value)
 
void setUniformValue (const char *name, const QPoint &point)
 
void setUniformValue (const char *name, const QPointF &point)
 
void setUniformValue (const char *name, const QSize &size)
 
void setUniformValue (const char *name, const QSizeF &size)
 
void setUniformValue (const char *name, const QTransform &value)
 
void setUniformValue (const char *name, const QVector2D &value)
 
void setUniformValue (const char *name, const QVector3D &value)
 
void setUniformValue (const char *name, const QVector4D &value)
 
void setUniformValue (const char *name, GLfloat value)
 
void setUniformValue (const char *name, GLfloat x, GLfloat y)
 
void setUniformValue (const char *name, GLfloat x, GLfloat y, GLfloat z)
 
void setUniformValue (const char *name, GLfloat x, GLfloat y, GLfloat z, GLfloat w)
 
void setUniformValue (const char *name, GLint value)
 
void setUniformValue (const char *name, GLuint value)
 
void setUniformValue (int location, const GLfloat value[2][2])
 
void setUniformValue (int location, const GLfloat value[3][3])
 
void setUniformValue (int location, const GLfloat value[4][4])
 
void setUniformValue (int location, const QColor &color)
 
void setUniformValue (int location, const QMatrix2x2 &value)
 
void setUniformValue (int location, const QMatrix2x3 &value)
 
void setUniformValue (int location, const QMatrix2x4 &value)
 
void setUniformValue (int location, const QMatrix3x2 &value)
 
void setUniformValue (int location, const QMatrix3x3 &value)
 
void setUniformValue (int location, const QMatrix3x4 &value)
 
void setUniformValue (int location, const QMatrix4x2 &value)
 
void setUniformValue (int location, const QMatrix4x3 &value)
 
void setUniformValue (int location, const QMatrix4x4 &value)
 
void setUniformValue (int location, const QPoint &point)
 
void setUniformValue (int location, const QPointF &point)
 
void setUniformValue (int location, const QSize &size)
 
void setUniformValue (int location, const QSizeF &size)
 
void setUniformValue (int location, const QTransform &value)
 
void setUniformValue (int location, const QVector2D &value)
 
void setUniformValue (int location, const QVector3D &value)
 
void setUniformValue (int location, const QVector4D &value)
 
void setUniformValue (int location, GLfloat value)
 
void setUniformValue (int location, GLfloat x, GLfloat y)
 
void setUniformValue (int location, GLfloat x, GLfloat y, GLfloat z)
 
void setUniformValue (int location, GLfloat x, GLfloat y, GLfloat z, GLfloat w)
 
void setUniformValue (int location, GLint value)
 
void setUniformValue (int location, GLuint value)
 
void setUniformValueArray (const char *name, const GLfloat *values, int count, int tupleSize)
 
void setUniformValueArray (const char *name, const GLint *values, int count)
 
void setUniformValueArray (const char *name, const GLuint *values, int count)
 
void setUniformValueArray (const char *name, const QMatrix2x2 *values, int count)
 
void setUniformValueArray (const char *name, const QMatrix2x3 *values, int count)
 
void setUniformValueArray (const char *name, const QMatrix2x4 *values, int count)
 
void setUniformValueArray (const char *name, const QMatrix3x2 *values, int count)
 
void setUniformValueArray (const char *name, const QMatrix3x3 *values, int count)
 
void setUniformValueArray (const char *name, const QMatrix3x4 *values, int count)
 
void setUniformValueArray (const char *name, const QMatrix4x2 *values, int count)
 
void setUniformValueArray (const char *name, const QMatrix4x3 *values, int count)
 
void setUniformValueArray (const char *name, const QMatrix4x4 *values, int count)
 
void setUniformValueArray (const char *name, const QVector2D *values, int count)
 
void setUniformValueArray (const char *name, const QVector3D *values, int count)
 
void setUniformValueArray (const char *name, const QVector4D *values, int count)
 
void setUniformValueArray (int location, const GLfloat *values, int count, int tupleSize)
 
void setUniformValueArray (int location, const GLint *values, int count)
 
void setUniformValueArray (int location, const GLuint *values, int count)
 
void setUniformValueArray (int location, const QMatrix2x2 *values, int count)
 
void setUniformValueArray (int location, const QMatrix2x3 *values, int count)
 
void setUniformValueArray (int location, const QMatrix2x4 *values, int count)
 
void setUniformValueArray (int location, const QMatrix3x2 *values, int count)
 
void setUniformValueArray (int location, const QMatrix3x3 *values, int count)
 
void setUniformValueArray (int location, const QMatrix3x4 *values, int count)
 
void setUniformValueArray (int location, const QMatrix4x2 *values, int count)
 
void setUniformValueArray (int location, const QMatrix4x3 *values, int count)
 
void setUniformValueArray (int location, const QMatrix4x4 *values, int count)
 
void setUniformValueArray (int location, const QVector2D *values, int count)
 
void setUniformValueArray (int location, const QVector3D *values, int count)
 
void setUniformValueArray (int location, const QVector4D *values, int count)
 
QList< QGLShader * > shaders () const
 
int uniformLocation (const char *name) const
 
int uniformLocation (const QByteArray &name) const
 
int uniformLocation (const QString &name) const
 
- Public Methods inherited from QObject
 QObject (QObject *parent=nullptr)
 
 ~QObject ()
 
bool blockSignals (bool block)
 
const QList< QObject * > & children () const
 
bool connect (const QObject *sender, const QString &signalMethod, const QString &location, const QString &slotMethod, Qt::ConnectionType type=Qt::AutoConnection)
 
bool connect (const QObject *sender, const QString &signalMethod, const QString &slotMethod, Qt::ConnectionType type=Qt::AutoConnection)
 
bool disconnect (const QObject *receiver, const QString &slotMethod=QString ()) const
 
bool disconnect (const QString &signalMethod, const QString &location, const QObject *receiver=nullptr, const QString &slotMethod=QString ()) const
 
bool disconnect (const QString &signalMethod=QString (), const QObject *receiver=nullptr, const QString &slotMethod=QString ()) const
 
void dumpObjectInfo ()
 
void dumpObjectTree ()
 
QList< QStringdynamicPropertyNames () const
 
virtual bool event (QEvent *event)
 
virtual bool eventFilter (QObject *watched, QEvent *event)
 
template<typename T >
findChild (const QString &childName=QString ()) const
 
template<class T >
QList< T > findChildren (const QRegularExpression &regExp, Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
 
template<class T >
QList< T > findChildren (const QString &objName=QString (), Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
 
bool inherits (const QString &className) const
 
void installEventFilter (QObject *filterObj)
 
bool isWidgetType () const
 
bool isWindowType () const
 
void killTimer (int id)
 
const QMetaObjectmetaObject () const
 
void moveToThread (QThread *targetThread)
 
QString objectName () const
 
QObject * parent () const
 
template<class T = QVariant>
property (const QString &name) const
 
void removeEventFilter (QObject *obj)
 
void setObjectName (const QString &name)
 
void setParent (QObject *parent)
 
bool setProperty (const QString &name, const QVariant &value)
 
bool signalsBlocked () const
 
int startTimer (int interval, Qt::TimerType timerType=Qt::CoarseTimer)
 
QThreadthread () const
 

Static Public Methods

static bool hasOpenGLShaderPrograms (const QGLContext *context=nullptr)
 
- Static Public Methods inherited from QObject
static bool connect (const QObject *sender, const QMetaMethod &signalMethod, const QObject *receiver, const QMetaMethod &slotMethod, Qt::ConnectionType type=Qt::AutoConnection)
 
static bool connect (const QObject *sender, const QString &signalMethod, const QObject *receiver, const QString &slotMethod, Qt::ConnectionType type=Qt::AutoConnection, const QString &location=QString ())
 
static bool connect (const QObject *sender, const QString &signalMethod, const QString &location, const QObject *receiver, const QString &slotMethod, Qt::ConnectionType type=Qt::AutoConnection)
 
template<class Sender , class SignalClass , class... SignalArgs, class Receiver , class SlotClass , class... SlotArgs, class SlotReturn >
static bool connect (const Sender *sender, void (SignalClass::*signalMethod)(SignalArgs...), const Receiver *receiver, SlotReturn (SlotClass::*slotMethod)(SlotArgs...), Qt::ConnectionType type=Qt::AutoConnection)
 
template<class Sender , class SignalClass , class... SignalArgs, class Receiver , class T >
static bool connect (const Sender *sender, void (SignalClass::*signalMethod)(SignalArgs...), const Receiver *receiver, T slotLambda, Qt::ConnectionType type=Qt::AutoConnection)
 
static bool disconnect (const QObject *sender, const QMetaMethod &signalMethod, const QObject *receiver, const QMetaMethod &slotMethod)
 
static bool disconnect (const QObject *sender, const QString &signalMethod, const QObject *receiver, const QString &slotMethod)
 
static bool disconnect (const QObject *sender, const QString &signalMethod, const QString &location, const QObject *receiver, const QString &slotMethod)
 
template<class Sender , class SignalClass , class... SignalArgs, class Receiver , class SlotClass , class... SlotArgs, class SlotReturn >
static bool disconnect (const Sender *sender, void (SignalClass::*signalMethod)(SignalArgs...), const Receiver *receiver, SlotReturn (SlotClass::*slotMethod)(SlotArgs...))
 
template<class Sender , class SignalClass , class... SignalArgs, class Receiver >
static bool disconnect (const Sender *sender, void (SignalClass::*signalMethod)(SignalArgs...), const Receiver *receiver, std::nullptr_t slotMethod=nullptr)
 
template<class Sender , class SignalClass , class... SignalArgs, class Receiver , class T >
static bool disconnect (const Sender *sender, void (SignalClass::*signalMethod)(SignalArgs...), const Receiver *receiver, T slotMethod)
 
static QMetaObjectstaticMetaObject ()
 
static QString tr (const char *text, const char *comment=nullptr, std::optional< int > numArg=std::optional< int >())
 

Additional Inherited Members

- Public Signals inherited from QObject
void destroyed (QObject *obj=nullptr)
 
void objectNameChanged (const QString &objectName)
 
- Public Slots inherited from QObject
void deleteLater ()
 
- Protected Methods inherited from QObject
virtual void childEvent (QChildEvent *event)
 
virtual void connectNotify (const QMetaMethod &signalMethod) const
 
virtual void customEvent (QEvent *event)
 
virtual void disconnectNotify (const QMetaMethod &signalMethod) const
 
bool isSignalConnected (const QMetaMethod &signalMethod) const
 
int receivers (const QString &signal) const
 
QObject * sender () const
 
int senderSignalIndex () const
 
virtual void timerEvent (QTimerEvent *event)
 
- Properties inherited from QObject
 objectName
 

Detailed Description

The QGLShaderProgram class allows OpenGL shader programs to be linked and used.

Introduction

This class supports shader programs written in the OpenGL Shading Language (GLSL) and in the OpenGL/ES Shading Language (GLSL/ES).

QGLShader and QGLShaderProgram shelter the programmer from the details of compiling and linking vertex and fragment shaders.

The following example creates a vertex shader program using the supplied source code. Once compiled and linked, the shader program is activated in the current QGLContext by calling QGLShaderProgram::bind():

QGLShader shader(QGLShader::Vertex);
shader.compileSourceCode(code);
QGLShaderProgram program(context);
program.addShader(shader);
program.link();
program.bind();

Writing portable Shaders

Shader programs can be difficult to reuse across OpenGL implementations because of varying levels of support for standard vertex attributes and uniform variables. In particular, GLSL/ES lacks all of the standard variables that are present on desktop OpenGL systems: gl_Vertex, gl_Normal, gl_Color, and so on. Desktop OpenGL lacks the variable qualifiers highp, mediump, and lowp.

The QGLShaderProgram class makes the process of writing portable shaders easier by prefixing all shader programs with the following lines on desktop OpenGL:

#define highp
#define mediump
#define lowp

This makes it possible to run most GLSL/ES shader programs on desktop systems. The programmer should restrict themselves to just features that are present in GLSL/ES, and avoid standard variable names that only work on the desktop.

Simple shader Example

program.addShaderFromSourceCode(QGLShader::Vertex,
"attribute highp vec4 vertex;\n"
"uniform highp mat4 matrix;\n"
"void main(void)\n"
"{\n"
" gl_Position = matrix * vertex;\n"
"}");
program.addShaderFromSourceCode(QGLShader::Fragment,
"uniform mediump vec4 color;\n"
"void main(void)\n"
"{\n"
" gl_FragColor = color;\n"
"}");
program.link();
program.bind();
int vertexLocation = program.attributeLocation("vertex");
int matrixLocation = program.uniformLocation("matrix");
int colorLocation = program.uniformLocation("color");

With the above shader program active, we can draw a green triangle as follows:

static GLfloat const triangleVertices[] = {
60.0f, 10.0f, 0.0f,
110.0f, 110.0f, 0.0f,
10.0f, 110.0f, 0.0f
};
QColor color(0, 255, 0, 255);
QMatrix4x4 pmvMatrix;
pmvMatrix.ortho(rect());
program.enableAttributeArray(vertexLocation);
program.setAttributeArray(vertexLocation, triangleVertices, 3);
program.setUniformValue(matrixLocation, pmvMatrix);
program.setUniformValue(colorLocation, color);
glDrawArrays(GL_TRIANGLES, 0, 3);
program.disableAttributeArray(vertexLocation);

Binary shaders and Programs

Binary shaders may be specified using glShaderBinary() on the return value from QGLShader::shaderId(). The QGLShader instance containing the binary can then be added to the shader program with addShader() and linked in the usual fashion with link().

Binary programs may be specified using glProgramBinaryOES() on the return value from programId(). Then the application should call link(), which will notice that the program has already been specified and linked, allowing other operations to be performed on the shader program.

See also
QGLShader

Constructor & Destructor Documentation

QGLShaderProgram::QGLShaderProgram ( QObject parent = nullptr)
explicit

Constructs a new shader program and attaches it to parent. The program will be invalid until addShader() is called.

The shader program will be associated with the current QGLContext.

See also
addShader()
QGLShaderProgram::QGLShaderProgram ( const QGLContext context,
QObject parent = nullptr 
)
explicit

Constructs a new shader program and attaches it to parent. The program will be invalid until addShader() is called.

The shader program will be associated with context.

See also
addShader()
QGLShaderProgram::~QGLShaderProgram ( )
virtual

Deletes this shader program.

Method Documentation

bool QGLShaderProgram::addShader ( QGLShader shader)

Adds a compiled shader to this shader program. Returns true if the shader could be added, or false otherwise.

Ownership of the shader object remains with the caller. It will not be deleted when this QGLShaderProgram instance is deleted. This allows the caller to add the same shader to multiple shader programs.

See also
addShaderFromSourceCode(), addShaderFromSourceFile(), removeShader(), link(), removeAllShaders()
bool QGLShaderProgram::addShaderFromSourceCode ( QGLShader::ShaderType  type,
const char *  source 
)

Compiles source as a shader of the specified type and adds it to this shader program. Returns true if compilation was successful, false otherwise. The compilation errors and warnings will be made available via log().

This function is intended to be a short-cut for quickly adding vertex and fragment shaders to a shader program without creating an instance of QGLShader first.

See also
addShader(), addShaderFromSourceFile(), removeShader(), link(), log(), removeAllShaders()
bool QGLShaderProgram::addShaderFromSourceCode ( QGLShader::ShaderType  type,
const QByteArray source 
)

This is an overloaded function.

Compiles source as a shader of the specified type and adds it to this shader program. Returns true if compilation was successful, false otherwise. The compilation errors and warnings will be made available via log().

This function is intended to be a short-cut for quickly adding vertex and fragment shaders to a shader program without creating an instance of QGLShader first.

See also
addShader(), addShaderFromSourceFile(), removeShader(), link(), log(), removeAllShaders()
bool QGLShaderProgram::addShaderFromSourceCode ( QGLShader::ShaderType  type,
const QString source 
)

This is an overloaded function.

Compiles source as a shader of the specified type and adds it to this shader program. Returns true if compilation was successful, false otherwise. The compilation errors and warnings will be made available via log().

This function is intended to be a short-cut for quickly adding vertex and fragment shaders to a shader program without creating an instance of QGLShader first.

See also
addShader(), addShaderFromSourceFile(), removeShader(), link(), log(), removeAllShaders()
bool QGLShaderProgram::addShaderFromSourceFile ( QGLShader::ShaderType  type,
const QString fileName 
)

Compiles the contents of fileName as a shader of the specified type and adds it to this shader program. Returns true if compilation was successful, false otherwise. The compilation errors and warnings will be made available via log().

This function is intended to be a short-cut for quickly adding vertex and fragment shaders to a shader program without creating an instance of QGLShader first.

See also
addShader(), addShaderFromSourceCode()
int QGLShaderProgram::attributeLocation ( const char *  name) const

Returns the location of the attribute name within this shader program's parameter list. Returns -1 if name is not a valid attribute for this shader program.

See also
uniformLocation(), bindAttributeLocation()
int QGLShaderProgram::attributeLocation ( const QByteArray name) const

This is an overloaded function.

Returns the location of the attribute name within this shader program's parameter list. Returns -1 if name is not a valid attribute for this shader program.

See also
uniformLocation(), bindAttributeLocation()
int QGLShaderProgram::attributeLocation ( const QString name) const

This is an overloaded function.

Returns the location of the attribute name within this shader program's parameter list. Returns -1 if name is not a valid attribute for this shader program.

See also
uniformLocation(), bindAttributeLocation()
bool QGLShaderProgram::bind ( )

Binds this shader program to the active QGLContext and makes it the current shader program. Any previously bound shader program is released. This is equivalent to calling glUseProgram() on programId(). Returns true if the program was successfully bound; false otherwise. If the shader program has not yet been linked, or it needs to be re-linked, this function will call link().

See also
link(), release()
void QGLShaderProgram::bindAttributeLocation ( const char *  name,
int  location 
)

Binds the attribute name to the specified location. This function can be called before or after the program has been linked. Any attributes that have not been explicitly bound when the program is linked will be assigned locations automatically.

When this function is called after the program has been linked, the program will need to be relinked for the change to take effect.

See also
attributeLocation()
void QGLShaderProgram::bindAttributeLocation ( const QByteArray name,
int  location 
)

This is an overloaded function.

Binds the attribute name to the specified location. This function can be called before or after the program has been linked. Any attributes that have not been explicitly bound when the program is linked will be assigned locations automatically.

When this function is called after the program has been linked, the program will need to be relinked for the change to take effect.

See also
attributeLocation()
void QGLShaderProgram::bindAttributeLocation ( const QString name,
int  location 
)

This is an overloaded function.

Binds the attribute name to the specified location. This function can be called before or after the program has been linked. Any attributes that have not been explicitly bound when the program is linked will be assigned locations automatically.

When this function is called after the program has been linked, the program will need to be relinked for the change to take effect.

See also
attributeLocation()
void QGLShaderProgram::disableAttributeArray ( const char *  name)

This is an overloaded function.

Disables the vertex array called name in this shader program that was enabled by a previous call to enableAttributeArray().

See also
enableAttributeArray(), setAttributeArray(), setAttributeValue(), setUniformValue()
void QGLShaderProgram::disableAttributeArray ( int  location)

Disables the vertex array at location in this shader program that was enabled by a previous call to enableAttributeArray().

See also
enableAttributeArray(), setAttributeArray(), setAttributeValue(), setUniformValue()
void QGLShaderProgram::enableAttributeArray ( const char *  name)

This is an overloaded function.

Enables the vertex array called name in this shader program so that the value set by setAttributeArray() on name will be used by the shader program.

See also
disableAttributeArray(), setAttributeArray(), setAttributeValue(), setUniformValue()
void QGLShaderProgram::enableAttributeArray ( int  location)

Enables the vertex array at location in this shader program so that the value set by setAttributeArray() on location will be used by the shader program.

See also
disableAttributeArray(), setAttributeArray(), setAttributeValue(), setUniformValue()
GLenum QGLShaderProgram::geometryInputType ( ) const

Returns the geometry shader input type, if active.

This parameter takes effect the next time the program is linked.

See also
setGeometryInputType()
GLenum QGLShaderProgram::geometryOutputType ( ) const

Returns the geometry shader output type, if active.

This parameter takes effect the next time the program is linked.

See also
setGeometryOutputType()
int QGLShaderProgram::geometryOutputVertexCount ( ) const

Returns the maximum number of vertices the current geometry shader program will produce, if active.

This parameter takes effect the ntext time the program is linked.

See also
setGeometryOutputVertexCount()
bool QGLShaderProgram::hasOpenGLShaderPrograms ( const QGLContext context = nullptr)
static

Returns true if shader programs written in the OpenGL Shading Language (GLSL) are supported on this system; false otherwise.

The context is used to resolve the GLSL extensions. If context is null, then QGLContext::currentContext() is used.

bool QGLShaderProgram::isLinked ( ) const

Returns true if this shader program has been linked; false otherwise.

See also
link()
bool QGLShaderProgram::link ( )
virtual

Links together the shaders that were added to this program with addShader(). Returns true if the link was successful or false otherwise. If the link failed, the error messages can be retrieved with log().

Subclasses can override this function to initialize attributes and uniform variables for use in specific shader programs.

If the shader program was already linked, calling this function again will force it to be re-linked.

See also
addShader(), log()
QString QGLShaderProgram::log ( ) const

Returns the errors and warnings that occurred during the last link() or addShader() with explicitly specified source code.

See also
link()
int QGLShaderProgram::maxGeometryOutputVertices ( ) const

Returns the hardware limit for how many vertices a geometry shader can output.

See also
setGeometryOutputVertexCount()
GLuint QGLShaderProgram::programId ( ) const

Returns the OpenGL identifier associated with this shader program.

See also
QGLShader::shaderId()
void QGLShaderProgram::release ( )

Releases the active shader program from the current QGLContext. This is equivalent to calling glUseProgram(0).

See also
bind()
void QGLShaderProgram::removeAllShaders ( )

Removes all of the shaders that were added to this program previously. The QGLShader objects for the shaders will not be deleted if they were constructed externally. QGLShader objects that are constructed internally by QGLShaderProgram will be deleted.

See also
addShader(), removeShader()
void QGLShaderProgram::removeShader ( QGLShader shader)

Removes shader from this shader program. The object is not deleted.

See also
addShader(), link(), removeAllShaders()
void QGLShaderProgram::setAttributeArray ( const char *  name,
const GLfloat *  values,
int  tupleSize,
int  stride = 0 
)

This is an overloaded function.

Sets an array of vertex values on the attribute called name in this shader program. The tupleSize indicates the number of components per vertex (1, 2, 3, or 4), and the stride indicates the number of bytes between vertices. A default stride value of zero indicates that the vertices are densely packed in values.

The array will become active when enableAttributeArray() is called on name. Otherwise the value specified with setAttributeValue() for name will be used.

See also
setAttributeValue(), setUniformValue(), enableAttributeArray(), disableAttributeArray()
void QGLShaderProgram::setAttributeArray ( const char *  name,
const QVector2D values,
int  stride = 0 
)

This is an overloaded function.

Sets an array of 2D vertex values on the attribute called name in this shader program. The stride indicates the number of bytes between vertices. A default stride value of zero indicates that the vertices are densely packed in values.

The array will become active when enableAttributeArray() is called on name. Otherwise the value specified with setAttributeValue() for name will be used.

See also
setAttributeValue(), setUniformValue(), enableAttributeArray(), disableAttributeArray()
void QGLShaderProgram::setAttributeArray ( const char *  name,
const QVector3D values,
int  stride = 0 
)

This is an overloaded function.

Sets an array of 3D vertex values on the attribute called name in this shader program. The stride indicates the number of bytes between vertices. A default stride value of zero indicates that the vertices are densely packed in values.

The array will become active when enableAttributeArray() is called on name. Otherwise the value specified with setAttributeValue() for name will be used.

See also
setAttributeValue(), setUniformValue(), enableAttributeArray(), disableAttributeArray()
void QGLShaderProgram::setAttributeArray ( const char *  name,
const QVector4D values,
int  stride = 0 
)

This is an overloaded function.

Sets an array of 4D vertex values on the attribute called name in this shader program. The stride indicates the number of bytes between vertices. A default stride value of zero indicates that the vertices are densely packed in values.

The array will become active when enableAttributeArray() is called on name. Otherwise the value specified with setAttributeValue() for name will be used.

See also
setAttributeValue(), setUniformValue(), enableAttributeArray(), disableAttributeArray()
void QGLShaderProgram::setAttributeArray ( const char *  name,
GLenum  type,
const void *  values,
int  tupleSize,
int  stride = 0 
)

This is an overloaded function.

Sets an array of vertex values on the attribute called name in this shader program. The stride indicates the number of bytes between vertices. A default stride value of zero indicates that the vertices are densely packed in values.

The type indicates the type of elements in the values array, usually GL_FLOAT, GL_UNSIGNED_BYTE, etc. The tupleSize indicates the number of components per vertex: 1, 2, 3, or 4.

The array will become active when enableAttributeArray() is called on the name. Otherwise the value specified with setAttributeValue() for name will be used.

The setAttributeBuffer() function can be used to set the attribute array to an offset within a vertex buffer.

See also
setAttributeValue(), setUniformValue(), enableAttributeArray(), disableAttributeArray(), setAttributeBuffer()
void QGLShaderProgram::setAttributeArray ( int  location,
const GLfloat *  values,
int  tupleSize,
int  stride = 0 
)

Sets an array of vertex values on the attribute at location in this shader program. The tupleSize indicates the number of components per vertex (1, 2, 3, or 4), and the stride indicates the number of bytes between vertices. A default stride value of zero indicates that the vertices are densely packed in values.

The array will become active when enableAttributeArray() is called on the location. Otherwise the value specified with setAttributeValue() for location will be used.

See also
setAttributeValue(), setUniformValue(), enableAttributeArray(), disableAttributeArray()
void QGLShaderProgram::setAttributeArray ( int  location,
const QVector2D values,
int  stride = 0 
)

Sets an array of 2D vertex values on the attribute at location in this shader program. The stride indicates the number of bytes between vertices. A default stride value of zero indicates that the vertices are densely packed in values.

The array will become active when enableAttributeArray() is called on the location. Otherwise the value specified with setAttributeValue() for location will be used.

See also
setAttributeValue(), setUniformValue(), enableAttributeArray(), disableAttributeArray()
void QGLShaderProgram::setAttributeArray ( int  location,
const QVector3D values,
int  stride = 0 
)

Sets an array of 3D vertex values on the attribute at location in this shader program. The stride indicates the number of bytes between vertices. A default stride value of zero indicates that the vertices are densely packed in values.

The array will become active when enableAttributeArray() is called on the location. Otherwise the value specified with setAttributeValue() for location will be used.

See also
setAttributeValue(), setUniformValue(), enableAttributeArray(), disableAttributeArray()
void QGLShaderProgram::setAttributeArray ( int  location,
const QVector4D values,
int  stride = 0 
)

Sets an array of 4D vertex values on the attribute at location in this shader program. The stride indicates the number of bytes between vertices. A default stride value of zero indicates that the vertices are densely packed in values.

The array will become active when enableAttributeArray() is called on the location. Otherwise the value specified with setAttributeValue() for location will be used.

See also
setAttributeValue(), setUniformValue(), enableAttributeArray(), disableAttributeArray()
void QGLShaderProgram::setAttributeArray ( int  location,
GLenum  type,
const void *  values,
int  tupleSize,
int  stride = 0 
)

Sets an array of vertex values on the attribute at location in this shader program. The stride indicates the number of bytes between vertices. A default stride value of zero indicates that the vertices are densely packed in values.

The type indicates the type of elements in the values array, usually GL_FLOAT, GL_UNSIGNED_BYTE, etc. The tupleSize indicates the number of components per vertex: 1, 2, 3, or 4.

The array will become active when enableAttributeArray() is called on the location. Otherwise the value specified with setAttributeValue() for location will be used.

The setAttributeBuffer() function can be used to set the attribute array to an offset within a vertex buffer.

See also
setAttributeValue(), setUniformValue(), enableAttributeArray(), disableAttributeArray(), setAttributeBuffer()
void QGLShaderProgram::setAttributeBuffer ( const char *  name,
GLenum  type,
int  offset,
int  tupleSize,
int  stride = 0 
)

This is an overloaded function.

Sets an array of vertex values on the attribute called name in this shader program, starting at a specific offset in the currently bound vertex buffer. The stride indicates the number of bytes between vertices. A default stride value of zero indicates that the vertices are densely packed in the value array.

The type indicates the type of elements in the vertex value array, usually GL_FLOAT, GL_UNSIGNED_BYTE, etc. The tupleSize indicates the number of components per vertex: 1, 2, 3, or 4.

The array will become active when enableAttributeArray() is called on the name. Otherwise the value specified with setAttributeValue() for name will be used.

See also
setAttributeArray()
void QGLShaderProgram::setAttributeBuffer ( int  location,
GLenum  type,
int  offset,
int  tupleSize,
int  stride = 0 
)

Sets an array of vertex values on the attribute at location in this shader program, starting at a specific offset in the currently bound vertex buffer. The stride indicates the number of bytes between vertices. A default stride value of zero indicates that the vertices are densely packed in the value array.

The type indicates the type of elements in the vertex value array, usually GL_FLOAT, GL_UNSIGNED_BYTE, etc. The tupleSize indicates the number of components per vertex: 1, 2, 3, or 4.

The array will become active when enableAttributeArray() is called on the location. Otherwise the value specified with setAttributeValue() for location will be used.

See also
setAttributeArray()
void QGLShaderProgram::setAttributeValue ( const char *  name,
const GLfloat *  values,
int  columns,
int  rows 
)

This is an overloaded function.

Sets the attribute called name in the current context to the contents of values, which contains columns elements, each consisting of rows elements. The rows value should be 1, 2, 3, or 4. This function is typically used to set matrix values and column vectors.

See also
setUniformValue()
void QGLShaderProgram::setAttributeValue ( const char *  name,
const QColor value 
)

This is an overloaded function.

Sets the attribute called name in the current context to value.

See also
setUniformValue()
void QGLShaderProgram::setAttributeValue ( const char *  name,
const QVector2D value 
)

This is an overloaded function.

Sets the attribute called name in the current context to value.

See also
setUniformValue()
void QGLShaderProgram::setAttributeValue ( const char *  name,
const QVector3D value 
)

This is an overloaded function.

Sets the attribute called name in the current context to value.

See also
setUniformValue()
void QGLShaderProgram::setAttributeValue ( const char *  name,
const QVector4D value 
)

This is an overloaded function.

Sets the attribute called name in the current context to value.

See also
setUniformValue()
void QGLShaderProgram::setAttributeValue ( const char *  name,
GLfloat  value 
)

This is an overloaded function.

Sets the attribute called name in the current context to value.

See also
setUniformValue()
void QGLShaderProgram::setAttributeValue ( const char *  name,
GLfloat  x,
GLfloat  y 
)

This is an overloaded function.

Sets the attribute called name in the current context to the 2D vector (x, y).

See also
setUniformValue()
void QGLShaderProgram::setAttributeValue ( const char *  name,
GLfloat  x,
GLfloat  y,
GLfloat  z 
)

This is an overloaded function.

Sets the attribute called name in the current context to the 3D vector (x, y, z).

See also
setUniformValue()
void QGLShaderProgram::setAttributeValue ( const char *  name,
GLfloat  x,
GLfloat  y,
GLfloat  z,
GLfloat  w 
)

This is an overloaded function.

Sets the attribute called name in the current context to the 4D vector (x, y, z, w).

See also
setUniformValue()
void QGLShaderProgram::setAttributeValue ( int  location,
const GLfloat *  values,
int  columns,
int  rows 
)

Sets the attribute at location in the current context to the contents of values, which contains columns elements, each consisting of rows elements. The rows value should be 1, 2, 3, or 4. This function is typically used to set matrix values and column vectors.

See also
setUniformValue()
void QGLShaderProgram::setAttributeValue ( int  location,
const QColor value 
)

Sets the attribute at location in the current context to value.

See also
setUniformValue()
void QGLShaderProgram::setAttributeValue ( int  location,
const QVector2D value 
)

Sets the attribute at location in the current context to value.

See also
setUniformValue()
void QGLShaderProgram::setAttributeValue ( int  location,
const QVector3D value 
)

Sets the attribute at location in the current context to value.

See also
setUniformValue()
void QGLShaderProgram::setAttributeValue ( int  location,
const QVector4D value 
)

Sets the attribute at location in the current context to value.

See also
setUniformValue()
void QGLShaderProgram::setAttributeValue ( int  location,
GLfloat  value 
)

Sets the attribute at location in the current context to value.

See also
setUniformValue()
void QGLShaderProgram::setAttributeValue ( int  location,
GLfloat  x,
GLfloat  y 
)

Sets the attribute at location in the current context to the 2D vector (x, y).

See also
setUniformValue()
void QGLShaderProgram::setAttributeValue ( int  location,
GLfloat  x,
GLfloat  y,
GLfloat  z 
)

Sets the attribute at location in the current context to the 3D vector (x, y, z).

See also
setUniformValue()
void QGLShaderProgram::setAttributeValue ( int  location,
GLfloat  x,
GLfloat  y,
GLfloat  z,
GLfloat  w 
)

Sets the attribute at location in the current context to the 4D vector (x, y, z, w).

See also
setUniformValue()
void QGLShaderProgram::setGeometryInputType ( GLenum  inputType)

Sets the input type from inputType.

This parameter takes effect the next time the program is linked.

See also
geometryInputType()
void QGLShaderProgram::setGeometryOutputType ( GLenum  outputType)

Sets the output type from the geometry shader, if active, to outputType.

This parameter takes effect the next time the program is linked.

See also
geometryOutputType()
void QGLShaderProgram::setGeometryOutputVertexCount ( int  count)

Sets the maximum number of vertices the current geometry shader program will produce, if active, to count.

This parameter takes effect the next time the program is linked.

See also
geometryOutputVertexCount()
void QGLShaderProgram::setUniformValue ( const char *  name,
const GLfloat  value[2][2] 
)

This is an overloaded function.

Sets the uniform variable called name in the current context to a 2x2 matrix value. The matrix elements must be specified in column-major order.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( const char *  name,
const GLfloat  value[3][3] 
)

This is an overloaded function.

Sets the uniform variable called name in the current context to a 3x3 matrix value. The matrix elements must be specified in column-major order.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( const char *  name,
const GLfloat  value[4][4] 
)

This is an overloaded function.

Sets the uniform variable called name in the current context to a 4x4 matrix value. The matrix elements must be specified in column-major order.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( const char *  name,
const QColor color 
)

This is an overloaded function.

Sets the uniform variable called name in the current context to the red, green, blue, and alpha components of color.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( const char *  name,
const QMatrix2x2 value 
)

This is an overloaded function.

Sets the uniform variable called name in the current context to a 2x2 matrix value.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( const char *  name,
const QMatrix2x3 value 
)

This is an overloaded function.

Sets the uniform variable called name in the current context to a 2x3 matrix value.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( const char *  name,
const QMatrix2x4 value 
)

This is an overloaded function.

Sets the uniform variable called name in the current context to a 2x4 matrix value.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( const char *  name,
const QMatrix3x2 value 
)

This is an overloaded function.

Sets the uniform variable called name in the current context to a 3x2 matrix value.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( const char *  name,
const QMatrix3x3 value 
)

This is an overloaded function.

Sets the uniform variable called name in the current context to a 3x3 matrix value.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( const char *  name,
const QMatrix3x4 value 
)

This is an overloaded function.

Sets the uniform variable called name in the current context to a 3x4 matrix value.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( const char *  name,
const QMatrix4x2 value 
)

This is an overloaded function.

Sets the uniform variable called name in the current context to a 4x2 matrix value.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( const char *  name,
const QMatrix4x3 value 
)

This is an overloaded function.

Sets the uniform variable called name in the current context to a 4x3 matrix value.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( const char *  name,
const QMatrix4x4 value 
)

This is an overloaded function.

Sets the uniform variable called name in the current context to a 4x4 matrix value.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( const char *  name,
const QPoint point 
)

This is an overloaded function.

Sets the uniform variable associated with name in the current context to the x and y coordinates of point.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( const char *  name,
const QPointF point 
)

This is an overloaded function.

Sets the uniform variable associated with name in the current context to the x and y coordinates of point.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( const char *  name,
const QSize size 
)

This is an overloaded function.

Sets the uniform variable associated with name in the current context to the width and height of the given size.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( const char *  name,
const QSizeF size 
)

This is an overloaded function.

Sets the uniform variable associated with name in the current context to the width and height of the given size.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( const char *  name,
const QTransform value 
)

This is an overloaded function.

Sets the uniform variable called name in the current context to a 3x3 transformation matrix value that is specified as a QTransform value.

To set a QTransform value as a 4x4 matrix in a shader, use setUniformValue(name, QMatrix4x4(value)).

void QGLShaderProgram::setUniformValue ( const char *  name,
const QVector2D value 
)

This is an overloaded function.

Sets the uniform variable called name in the current context to value.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( const char *  name,
const QVector3D value 
)

This is an overloaded function.

Sets the uniform variable called name in the current context to value.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( const char *  name,
const QVector4D value 
)

This is an overloaded function.

Sets the uniform variable called name in the current context to value.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( const char *  name,
GLfloat  value 
)

This is an overloaded function.

Sets the uniform variable called name in the current context to value.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( const char *  name,
GLfloat  x,
GLfloat  y 
)

This is an overloaded function.

Sets the uniform variable called name in the current context to the 2D vector (x, y).

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( const char *  name,
GLfloat  x,
GLfloat  y,
GLfloat  z 
)

This is an overloaded function.

Sets the uniform variable called name in the current context to the 3D vector (x, y, z).

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( const char *  name,
GLfloat  x,
GLfloat  y,
GLfloat  z,
GLfloat  w 
)

This is an overloaded function.

Sets the uniform variable called name in the current context to the 4D vector (x, y, z, w).

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( const char *  name,
GLint  value 
)

This is an overloaded function.

Sets the uniform variable called name in the current context to value.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( const char *  name,
GLuint  value 
)

This is an overloaded function.

Sets the uniform variable called name in the current context to value. This function should be used when setting sampler values.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( int  location,
const GLfloat  value[2][2] 
)

This is an overloaded function.

Sets the uniform variable at location in the current context to a 2x2 matrix value. The matrix elements must be specified in column-major order.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( int  location,
const GLfloat  value[3][3] 
)

This is an overloaded function.

Sets the uniform variable at location in the current context to a 3x3 matrix value. The matrix elements must be specified in column-major order.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( int  location,
const GLfloat  value[4][4] 
)

This is an overloaded function.

Sets the uniform variable at location in the current context to a 4x4 matrix value. The matrix elements must be specified in column-major order.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( int  location,
const QColor color 
)

Sets the uniform variable at location in the current context to the red, green, blue, and alpha components of color.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( int  location,
const QMatrix2x2 value 
)

Sets the uniform variable at location in the current context to a 2x2 matrix value.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( int  location,
const QMatrix2x3 value 
)

Sets the uniform variable at location in the current context to a 2x3 matrix value.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( int  location,
const QMatrix2x4 value 
)

Sets the uniform variable at location in the current context to a 2x4 matrix value.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( int  location,
const QMatrix3x2 value 
)

Sets the uniform variable at location in the current context to a 3x2 matrix value.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( int  location,
const QMatrix3x3 value 
)

Sets the uniform variable at location in the current context to a 3x3 matrix value.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( int  location,
const QMatrix3x4 value 
)

Sets the uniform variable at location in the current context to a 3x4 matrix value.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( int  location,
const QMatrix4x2 value 
)

Sets the uniform variable at location in the current context to a 4x2 matrix value.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( int  location,
const QMatrix4x3 value 
)

Sets the uniform variable at location in the current context to a 4x3 matrix value.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( int  location,
const QMatrix4x4 value 
)

Sets the uniform variable at location in the current context to a 4x4 matrix value.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( int  location,
const QPoint point 
)

Sets the uniform variable at location in the current context to the x and y coordinates of point.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( int  location,
const QPointF point 
)

Sets the uniform variable at location in the current context to the x and y coordinates of point.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( int  location,
const QSize size 
)

Sets the uniform variable at location in the current context to the width and height of the given size.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( int  location,
const QSizeF size 
)

Sets the uniform variable at location in the current context to the width and height of the given size.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( int  location,
const QTransform value 
)

Sets the uniform variable at location in the current context to a 3x3 transformation matrix value that is specified as a QTransform value.

To set a QTransform value as a 4x4 matrix in a shader, use setUniformValue(location, QMatrix4x4(value)).

void QGLShaderProgram::setUniformValue ( int  location,
const QVector2D value 
)

Sets the uniform variable at location in the current context to value.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( int  location,
const QVector3D value 
)

Sets the uniform variable at location in the current context to value.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( int  location,
const QVector4D value 
)

Sets the uniform variable at location in the current context to value.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( int  location,
GLfloat  value 
)

Sets the uniform variable at location in the current context to value.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( int  location,
GLfloat  x,
GLfloat  y 
)

Sets the uniform variable at location in the current context to the 2D vector (x, y).

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( int  location,
GLfloat  x,
GLfloat  y,
GLfloat  z 
)

Sets the uniform variable at location in the current context to the 3D vector (x, y, z).

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( int  location,
GLfloat  x,
GLfloat  y,
GLfloat  z,
GLfloat  w 
)

Sets the uniform variable at location in the current context to the 4D vector (x, y, z, w).

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( int  location,
GLint  value 
)

Sets the uniform variable at location in the current context to value.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValue ( int  location,
GLuint  value 
)

Sets the uniform variable at location in the current context to value. This function should be used when setting sampler values.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValueArray ( const char *  name,
const GLfloat *  values,
int  count,
int  tupleSize 
)

This is an overloaded function.

Sets the uniform variable array called name in the current context to the count elements of values. Each element has tupleSize components. The tupleSize must be 1, 2, 3, or 4.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValueArray ( const char *  name,
const GLint *  values,
int  count 
)

This is an overloaded function.

Sets the uniform variable array called name in the current context to the count elements of values.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValueArray ( const char *  name,
const GLuint *  values,
int  count 
)

This is an overloaded function.

Sets the uniform variable array called name in the current context to the count elements of values. This overload should be used when setting an array of sampler values.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValueArray ( const char *  name,
const QMatrix2x2 values,
int  count 
)

This is an overloaded function.

Sets the uniform variable array called name in the current context to the count 2x2 matrix elements of values.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValueArray ( const char *  name,
const QMatrix2x3 values,
int  count 
)

This is an overloaded function.

Sets the uniform variable array called name in the current context to the count 2x3 matrix elements of values.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValueArray ( const char *  name,
const QMatrix2x4 values,
int  count 
)

This is an overloaded function.

Sets the uniform variable array called name in the current context to the count 2x4 matrix elements of values.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValueArray ( const char *  name,
const QMatrix3x2 values,
int  count 
)

This is an overloaded function.

Sets the uniform variable array called name in the current context to the count 3x2 matrix elements of values.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValueArray ( const char *  name,
const QMatrix3x3 values,
int  count 
)

This is an overloaded function.

Sets the uniform variable array called name in the current context to the count 3x3 matrix elements of values.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValueArray ( const char *  name,
const QMatrix3x4 values,
int  count 
)

This is an overloaded function.

Sets the uniform variable array called name in the current context to the count 3x4 matrix elements of values.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValueArray ( const char *  name,
const QMatrix4x2 values,
int  count 
)

This is an overloaded function.

Sets the uniform variable array called name in the current context to the count 4x2 matrix elements of values.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValueArray ( const char *  name,
const QMatrix4x3 values,
int  count 
)

This is an overloaded function.

Sets the uniform variable array called name in the current context to the count 4x3 matrix elements of values.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValueArray ( const char *  name,
const QMatrix4x4 values,
int  count 
)

This is an overloaded function.

Sets the uniform variable array called name in the current context to the count 4x4 matrix elements of values.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValueArray ( const char *  name,
const QVector2D values,
int  count 
)

This is an overloaded function.

Sets the uniform variable array called name in the current context to the count 2D vector elements of values.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValueArray ( const char *  name,
const QVector3D values,
int  count 
)

This is an overloaded function.

Sets the uniform variable array called name in the current context to the count 3D vector elements of values.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValueArray ( const char *  name,
const QVector4D values,
int  count 
)

This is an overloaded function.

Sets the uniform variable array called name in the current context to the count 4D vector elements of values.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValueArray ( int  location,
const GLfloat *  values,
int  count,
int  tupleSize 
)

Sets the uniform variable array at location in the current context to the count elements of values. Each element has tupleSize components. The tupleSize must be 1, 2, 3, or 4.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValueArray ( int  location,
const GLint *  values,
int  count 
)

Sets the uniform variable array at location in the current context to the count elements of values.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValueArray ( int  location,
const GLuint *  values,
int  count 
)

Sets the uniform variable array at location in the current context to the count elements of values. This overload should be used when setting an array of sampler values.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValueArray ( int  location,
const QMatrix2x2 values,
int  count 
)

Sets the uniform variable array at location in the current context to the count 2x2 matrix elements of values.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValueArray ( int  location,
const QMatrix2x3 values,
int  count 
)

Sets the uniform variable array at location in the current context to the count 2x3 matrix elements of values.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValueArray ( int  location,
const QMatrix2x4 values,
int  count 
)

Sets the uniform variable array at location in the current context to the count 2x4 matrix elements of values.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValueArray ( int  location,
const QMatrix3x2 values,
int  count 
)

Sets the uniform variable array at location in the current context to the count 3x2 matrix elements of values.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValueArray ( int  location,
const QMatrix3x3 values,
int  count 
)

Sets the uniform variable array at location in the current context to the count 3x3 matrix elements of values.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValueArray ( int  location,
const QMatrix3x4 values,
int  count 
)

Sets the uniform variable array at location in the current context to the count 3x4 matrix elements of values.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValueArray ( int  location,
const QMatrix4x2 values,
int  count 
)

Sets the uniform variable array at location in the current context to the count 4x2 matrix elements of values.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValueArray ( int  location,
const QMatrix4x3 values,
int  count 
)

Sets the uniform variable array at location in the current context to the count 4x3 matrix elements of values.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValueArray ( int  location,
const QMatrix4x4 values,
int  count 
)

Sets the uniform variable array at location in the current context to the count 4x4 matrix elements of values.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValueArray ( int  location,
const QVector2D values,
int  count 
)

Sets the uniform variable array at location in the current context to the count 2D vector elements of values.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValueArray ( int  location,
const QVector3D values,
int  count 
)

Sets the uniform variable array at location in the current context to the count 3D vector elements of values.

See also
setAttributeValue()
void QGLShaderProgram::setUniformValueArray ( int  location,
const QVector4D values,
int  count 
)

Sets the uniform variable array at location in the current context to the count 4D vector elements of values.

See also
setAttributeValue()
QList< QGLShader * > QGLShaderProgram::shaders ( ) const

Returns a list of all shaders that have been added to this shader program using addShader().

See also
addShader(), removeShader()
int QGLShaderProgram::uniformLocation ( const char *  name) const

Returns the location of the uniform variable name within this shader program's parameter list. Returns -1 if name is not a valid uniform variable for this shader program.

See also
attributeLocation()
int QGLShaderProgram::uniformLocation ( const QByteArray name) const

This is an overloaded function.

Returns the location of the uniform variable name within this shader program's parameter list. Returns -1 if name is not a valid uniform variable for this shader program.

See also
attributeLocation()
int QGLShaderProgram::uniformLocation ( const QString name) const

This is an overloaded function.

Returns the location of the uniform variable name within this shader program's parameter list. Returns -1 if name is not a valid uniform variable for this shader program.

See also
attributeLocation()