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UnrealEngine/Engine/Source/ThirdParty/MaterialX/MaterialX-1.38.10/source/MaterialXGenShader/Nodes/SwizzleNode.h
2025-05-18 13:04:45 +08:00

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//
// Copyright Contributors to the MaterialX Project
// SPDX-License-Identifier: Apache-2.0
//
#ifndef MATERIALX_SWIZZLENODE_H
#define MATERIALX_SWIZZLENODE_H
#include <MaterialXGenShader/ShaderNodeImpl.h>
MATERIALX_NAMESPACE_BEGIN
/// Swizzle node implementation
class MX_GENSHADER_API SwizzleNode : public ShaderNodeImpl
{
public:
static ShaderNodeImplPtr create();
void emitFunctionCall(const ShaderNode& node, GenContext& context, ShaderStage& stage) const override;
/// Returns true if the input is editable by users.
/// Editable inputs are allowed to be published as shader uniforms
/// and hence must be presentable in a user interface.
bool isEditable(const ShaderInput& input) const override;
protected:
/// Get the implementation name of the variable that supports swizzles.
/// Allows to override that name in generated code based on the target language.
virtual string getVariableName(const ShaderInput* input) const;
};
MATERIALX_NAMESPACE_END
#endif