QShaderProgram

PyQt5.Qt3DRender.QShaderProgram

Inherits from QNode.

Description

Encapsulates a Shader Program.

A shader program consists of several different shaders, such as vertex and fragment shaders.

Qt3D will automatically populate a set of default uniforms if they are encountered during the shader instrospection phase.

Default Uniform	Associated Qt3D Parameter name	GLSL declaration
ModelMatrix	modelMatrix	uniform mat4 modelMatrix;
ViewMatrix	viewMatrix	uniform mat4 viewMatrix;
ProjectionMatrix	projectionMatrix	uniform mat4 projectionMatrix;
ModelViewMatrix	modelView	uniform mat4 modelView;
ViewProjectionMatrix	viewProjectionMatrix	uniform mat4 viewProjectionMatrix;
ModelViewProjectionMatrix	modelViewProjection mvp	uniform mat4 modelViewProjection; uniform mat4 mvp;
InverseModelMatrix	inverseModelMatrix	uniform mat4 inverseModelMatrix;
InverseViewMatrix	inverseViewMatrix	uniform mat4 inverseViewMatrix;
InverseProjectionMatrix	inverseProjectionMatrix	uniform mat4 inverseProjectionMatrix;
InverseModelViewMatrix	inverseModelView	uniform mat4 inverseModelView;
InverseViewProjectionMatrix	inverseViewProjectionMatrix	uniform mat4 inverseViewProjectionMatrix;
InverseModelViewProjectionMatrix	inverseModelViewProjection	uniform mat4 inverseModelViewProjection;
ModelNormalMatrix	modelNormalMatrix	uniform mat3 modelNormalMatrix;
ModelViewNormalMatrix	modelViewNormal	uniform mat3 modelViewNormal;
ViewportMatrix	viewportMatrix	uniform mat4 viewportMatrix;
InverseViewportMatrix	inverseViewportMatrix	uniform mat4 inverseViewportMatrix;
AspectRatio (surface width / surface height)	aspectRatio	uniform float aspectRatio;
Exposure	exposure	uniform float exposure;
Gamma	gamma	uniform float gamma;
Time (in nano seconds)	time	uniform float time;
EyePosition	eyePosition	uniform vec3 eyePosition;
SkinningPalette	skinningPalette[0]	const int maxJoints = 100; uniform mat4 skinningPalette[maxJoints];

Enums

ShaderType

This enum identifies the type of shader used.

Member	Value	Description
Compute	5	Compute shader
Fragment	1	Fragment shader
Geometry	4	Geometry shader
TessellationControl	2	Tesselation control shader
TessellationEvaluation	3	Tesselation evaluation shader
Vertex	0	Vertex shader

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Status

This enum identifies the status of shader used.

Member	Value	Description
Error	2	An error occurred while compiling the shader
NotReady	0	The shader hasn’t been compiled and linked yet
Ready	1	The shader was successfully compiled

Methods

__init__(parent: QNode = None)

TODO

---

computeShaderCode() → QByteArray

See also

setComputeShaderCode().

---

fragmentShaderCode() → QByteArray

See also

setFragmentShaderCode().

---

geometryShaderCode() → QByteArray

See also

setGeometryShaderCode().

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@staticmethod
loadSource(QUrl) → QByteArray

Returns the shader code loaded from sourceUrl.

---

log() → str

TODO

---

sceneChangeEvent(QSceneChange)

TODO

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setComputeShaderCode(Union[QByteArray, bytes, bytearray])

See also

computeShaderCode().

---

setFragmentShaderCode(Union[QByteArray, bytes, bytearray])

See also

fragmentShaderCode().

---

setGeometryShaderCode(Union[QByteArray, bytes, bytearray])

See also

geometryShaderCode().

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setShaderCode(ShaderType, Union[QByteArray, bytes, bytearray])

Sets the shader code for type of shader to the shaderCode.

See also

shaderCode().

---

setTessellationControlShaderCode(Union[QByteArray, bytes, bytearray])

See also

tessellationControlShaderCode().

---

setTessellationEvaluationShaderCode(Union[QByteArray, bytes, bytearray])

See also

tessellationEvaluationShaderCode().

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setVertexShaderCode(Union[QByteArray, bytes, bytearray])

See also

vertexShaderCode().

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shaderCode(ShaderType) → QByteArray

Returns the shader code for type.

See also

setShaderCode().

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status() → Status

Returns the status of the current shader program.

---

tessellationControlShaderCode() → QByteArray

See also

setTessellationControlShaderCode().

---

tessellationEvaluationShaderCode() → QByteArray

See also

setTessellationEvaluationShaderCode().

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vertexShaderCode() → QByteArray

See also

setVertexShaderCode().

Signals

computeShaderCodeChanged(Union[QByteArray, bytes, bytearray])

TODO

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fragmentShaderCodeChanged(Union[QByteArray, bytes, bytearray])

TODO

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geometryShaderCodeChanged(Union[QByteArray, bytes, bytearray])

TODO

---

logChanged(str)

TODO

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statusChanged(Status)

TODO

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tessellationControlShaderCodeChanged(Union[QByteArray, bytes, bytearray])

TODO

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tessellationEvaluationShaderCodeChanged(Union[QByteArray, bytes, bytearray])

TODO

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vertexShaderCodeChanged(Union[QByteArray, bytes, bytearray])

TODO