Shader Classes

Shaders are programs that run on the graphics processor and replace the formerly fixed OpenGL pipeline. More...

Classes
class	SoFragmentShader
	The SoFragmentShader class is used for setting up fragment shader programs. More...
class	SoGeometryShader
	The SoGeometryShader class is used for loading geometry shader programs. More...
class	SoShaderObject
	The SoShaderObject class is the superclass for all shader classes in Coin. More...
class	SoShaderParameter
	The SoShaderParameter class is the base class for all shader parameter classes. More...
class	SoShaderParameter1f
	The SoShaderParameter1f class is used to define a floating point value as shader parameter. More...
class	SoShaderParameter1i
	The SoShaderParameter1i class is used to define an integer value as shader parameter. More...
class	SoShaderParameter2f
	The SoShaderParameter2f class is used to define a two-dimensional floating point value as shader parameter. More...
class	SoShaderParameter2i
	The SoShaderParameter2i class is used to define a two-dimensional integer value as shader parameter. More...
class	SoShaderParameter3f
	The SoShaderParameter3f class is used to define a three-dimensional floating point value as shader parameter. More...
class	SoShaderParameter3i
	The SoShaderParameter3i class is used to define a three-dimensional integer value as shader parameter. More...
class	SoShaderParameter4f
	The SoShaderParameter4f class is used to define a four-dimensional floating point value as shader parameter. More...
class	SoShaderParameter4i
	The SoShaderParameter4i class is used to define a four-dimensional integer value as shader parameter. More...
class	SoShaderParameterArray1f
	The SoShaderParameterArray1f class is used to define a floating point array as shader parameter. More...
class	SoShaderParameterArray1i
	The SoShaderParameterArray1i class is used to define an integer array as shader parameter. More...
class	SoShaderParameterArray2f
	The SoShaderParameterArray2f class is used to define a two-dimensional floating point array as shader parameter. More...
class	SoShaderParameterArray2i
	The SoShaderParameterArray2i class is used to define a two-dimensional integer array as shader parameter. More...
class	SoShaderParameterArray3f
	The SoShaderParameterArray3f class is used to define a three-dimensional floating point array as shader parameter. More...
class	SoShaderParameterArray3i
	The SoShaderParameterArray3i class is used to define a three-dimensional integer array as shader parameter. More...
class	SoShaderParameterArray4f
	The SoShaderParameterArray4f class is used to define a four-dimensional floating point array as shader parameter. More...
class	SoShaderParameterArray4i
	The SoShaderParameterArray4i class is used to define a four-dimensional integer array as shader parameter. More...
class	SoShaderParameterMatrix
	The SoShaderParameterMatrix class is used to define a matrix as shader parameter. More...
class	SoShaderParameterMatrixArray
	The SoShaderParameterMatrixArray class is used to define a matrix array as shader parameter. More...
class	SoShaderProgram
	The SoShaderProgram class is used to specify a set of vertex/geometry/fragment objects. More...
class	SoShaderStateMatrixParameter
	The SoShaderStateMatrixParameter class is used to define a matrix as shader parameter whose content is derived from the traversal state. More...
class	SoUniformShaderParameter
	The SoUniformShaderParameter class is the base class for all uniform shader variables. More...
class	SoVertexAttribute
	A generic node for providing GL vertex attributes of various types. More...
class	SoVertexAttributeBinding
	The SoVertexAttributeBinding class is a node for setting up how vertex attributes are mapped to shapes. More...
class	SoVertexShader
	The SoVertexShader class is used for setting up vertex shader programs. More...

Detailed Description

Shaders are programs that run on the graphics processor and replace the formerly fixed OpenGL pipeline.

Coin-2.5 added support for Shaders. Shaders replace the fixed function vertex and fragment processing in OpenGL by letting the user define the processing that takes place at key points in the OpenGL pipeline. Vertex shaders handle the operations that occur on each vertex, while fragment shaders handle the operations that occur on each pixel. The SoShaderProgram node in Coin provides a convenient way of specifying the code for vertex and fragment shaders.

Coin-3.0 expanded upon the shader support by adding support for OpenGL Vertex Attributes. When using shaders, programmers are no longer limited to the set of attributes that OpenGL defines (glColor, glNormal, glTexCoord etc.) You can now define your own per-vertex data and pass them to the shaders using the SoVertexAttribute node.