MaterialX 1.38.7
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ConvolutionNode Class Referenceabstract

Utility class for implementations of nodes which perform convolutions. More...

#include <ConvolutionNode.h>

Inheritance diagram for ConvolutionNode:
ShaderNodeImpl BlurNode HeightToNormalNodeGlsl BlurNodeGlsl

Public Member Functions

void createVariables (const ShaderNode &node, GenContext &context, Shader &shader) const override
 Create shader variables needed for the implementation of this node (e.g. More...
 
- Public Member Functions inherited from ShaderNodeImpl
virtual const string & getTarget () const
 Return an identifier for the target used by this implementation. More...
 
virtual void initialize (const InterfaceElement &element, GenContext &context)
 Initialize with the given implementation element. More...
 
const string & getName () const
 Return the name of this implementation.
 
size_t getHash () const
 Return a hash for this implementation. More...
 
virtual void addInputs (ShaderNode &node, GenContext &context) const
 Add additional inputs on a node. More...
 
virtual void setValues (const Node &node, ShaderNode &shaderNode, GenContext &context) const
 Set values for additional inputs on a node. More...
 
virtual void addClassification (ShaderNode &node) const
 Add additional classifications on a node. More...
 
virtual void createVariables (const ShaderNode &node, GenContext &context, Shader &shader) const
 Create shader variables needed for the implementation of this node (e.g. More...
 
virtual void emitFunctionDefinition (const ShaderNode &node, GenContext &context, ShaderStage &stage) const
 Emit function definition for the given node instance. More...
 
virtual void emitFunctionCall (const ShaderNode &node, GenContext &context, ShaderStage &stage) const
 Emit the function call or inline source code for given node instance in the given context. More...
 
virtual void emitOutputVariables (const ShaderNode &node, GenContext &context, ShaderStage &stage) const
 Emit declaration and initialization of output variables to use in a function call.
 
virtual ShaderGraphgetGraph () const
 Return a pointer to the graph if this implementation is using a graph, or returns nullptr otherwise. More...
 
virtual bool isEditable (const ShaderInput &) const
 Returns true if an input is editable by users. More...
 
virtual bool isEditable (const ShaderGraphInputSocket &) const
 Returns true if a graph input is accessible by users. More...
 

Protected Member Functions

 ConvolutionNode ()
 Constructor.
 
virtual bool acceptsInputType (const TypeDesc *type) const =0
 Derived classes are responsible for returning if a given type is an acceptable input. More...
 
virtual void computeSampleOffsetStrings (const string &sampleSizeName, const string &offsetTypeString, unsigned int filterWidth, StringVec &offsetStrings) const =0
 
virtual const ShaderInputgetSamplingInput (const ShaderNode &node) const
 Get input which is used for sampling. More...
 
void emitInputSamplesUV (const ShaderNode &node, unsigned int sampleCount, unsigned int filterWidth, float filterSize, float filterOffset, const string &sampleSizeFunctionUV, GenContext &context, ShaderStage &stage, StringVec &sampleStrings) const
 Generate upstream / input sampling code in uv space and cache the output variable names which will hold the sample values after execution.
 
- Protected Member Functions inherited from ShaderNodeImpl
 ShaderNodeImpl ()
 Protected constructor.
 

Additional Inherited Members

- Protected Attributes inherited from ShaderNodeImpl
string _name
 
size_t _hash
 

Detailed Description

Utility class for implementations of nodes which perform convolutions.

Member Function Documentation

◆ acceptsInputType()

virtual bool acceptsInputType ( const TypeDesc type) const
protectedpure virtual

Derived classes are responsible for returning if a given type is an acceptable input.

Implemented in HeightToNormalNodeGlsl, and BlurNode.

◆ computeSampleOffsetStrings()

virtual void computeSampleOffsetStrings ( const string &  sampleSizeName,
const string &  offsetTypeString,
unsigned int  filterWidth,
StringVec offsetStrings 
) const
protectedpure virtual

Implemented in HeightToNormalNodeGlsl, and BlurNode.

◆ createVariables()

void createVariables ( const ShaderNode node,
GenContext context,
Shader shader 
) const
overridevirtual

Create shader variables needed for the implementation of this node (e.g.

uniforms, inputs and outputs). Used if the node requires input data from the application.

Reimplemented from ShaderNodeImpl.

◆ getSamplingInput()

const ShaderInput * getSamplingInput ( const ShaderNode node) const
protectedvirtual

Get input which is used for sampling.

If there is none then a null pointer is returned.


The documentation for this class was generated from the following files: