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

39 lines
1.1 KiB
C++

//
// Copyright Contributors to the MaterialX Project
// SPDX-License-Identifier: Apache-2.0
//
#include <MaterialXGenShader/Nodes/HwTimeNode.h>
#include <MaterialXGenShader/Shader.h>
MATERIALX_NAMESPACE_BEGIN
ShaderNodeImplPtr HwTimeNode::create()
{
return std::make_shared<HwTimeNode>();
}
void HwTimeNode::createVariables(const ShaderNode&, GenContext&, Shader& shader) const
{
ShaderStage& ps = shader.getStage(Stage::PIXEL);
addStageUniform(HW::PRIVATE_UNIFORMS, Type::FLOAT, HW::T_FRAME, ps);
}
void HwTimeNode::emitFunctionCall(const ShaderNode& node, GenContext& context, ShaderStage& stage) const
{
DEFINE_SHADER_STAGE(stage, Stage::PIXEL)
{
const ShaderGenerator& shadergen = context.getShaderGenerator();
shadergen.emitLineBegin(stage);
shadergen.emitOutput(node.getOutput(), true, false, context, stage);
shadergen.emitString(" = " + HW::T_FRAME + " / ", stage);
const ShaderInput* fpsInput = node.getInput("fps");
const string fps = fpsInput->getValue()->getValueString();
shadergen.emitString(fps, stage);
shadergen.emitLineEnd(stage);
}
}
MATERIALX_NAMESPACE_END