simpleNoiseShader/simpleNoiseShaderOverride.h

#ifndef _simpleNoiseShaderOverride
#define _simpleNoiseShaderOverride

//-
// ===========================================================================
// Copyright 2015 Autodesk, Inc.  All rights reserved.
//
// Use of this software is subject to the terms of the Autodesk license
// agreement provided at the time of installation or download, or which
// otherwise accompanies this software in either electronic or hard copy form.
// ===========================================================================
//+

// Example Plugin: simpleNoiseShader.cpp
//
// This is the MPxShadingNodeOverride implementation to go along with the node
// defined in simpleNoiseShader.cpp. This provides draw support in Viewport 2.0.
//

#include <maya/MPxShadingNodeOverride.h>

class simpleNoiseShaderOverride : public MHWRender::MPxShadingNodeOverride
{
public:
    static MHWRender::MPxShadingNodeOverride* creator(const MObject& obj);
    static MStatus registerFragments();
    static MStatus deregisterFragments();

    ~simpleNoiseShaderOverride() override;

    MHWRender::DrawAPI supportedDrawAPIs() const override;
    MString fragmentName() const override;
    void getCustomMappings(
        MHWRender::MAttributeParameterMappingList& mappings) override;
    void updateShader(
        MHWRender::MShaderInstance& shader,
        const MHWRender::MAttributeParameterMappingList& mappings) override;

private:
    simpleNoiseShaderOverride(const MObject& obj);

    MObject fObject;
    MHWRender::MTexture* fNoiseTexture;
    const MHWRender::MSamplerState* fNoiseSamplerState;
    mutable MString fResolvedNoiseMapName;
    mutable MString fResolvedNoiseSamplerName;
};

#endif // _simpleNoiseShaderOverride