matfiltResolveVstructs.h

//
// Copyright 2019 Pixar
//
// Licensed under the terms set forth in the LICENSE.txt file available at
// https://openusd.org/license.
//
#ifndef EXT_RMANPKG_PLUGIN_RENDERMAN_PLUGIN_HD_PRMAN_MATFILT_RESOLVE_VSTRUCTS_H
#define EXT_RMANPKG_PLUGIN_RENDERMAN_PLUGIN_HD_PRMAN_MATFILT_RESOLVE_VSTRUCTS_H
 
#include "pxr/pxr.h"
#include "pxr/imaging/hd/material.h"
#include "pxr/imaging/hd/materialNetworkInterface.h"
 
#if PXR_VERSION >= 2505
#include "pxr/usd/sdr/declare.h"
#else
#include "pxr/usd/ndr/declare.h"
#endif
 
#include <memory>
 
PXR_NAMESPACE_OPEN_SCOPE
 
#if PXR_VERSION < 2505
using SdrTokenVec = NdrTokenVec;
#endif
 
void MatfiltResolveVstructs(
        HdMaterialNetworkInterface *networkInterface,
        bool enableConditions = true);
 
class MatfiltVstructConditionalEvaluatorImpl;
 
class MatfiltVstructConditionalEvaluator
{
public:
    typedef std::shared_ptr<MatfiltVstructConditionalEvaluator> Ptr;
 
    ~MatfiltVstructConditionalEvaluator();
 
    static Ptr Parse(const std::string &inputExpr);
 
    void Evaluate(
            const TfToken &nodeId,
            const TfToken &nodeInputId,
            const TfToken &upstreamNodeId,
            const TfToken &upstreamNodeOutput,
            const SdrTokenVec &shaderTypePriority,
            HdMaterialNetworkInterface *networkInterface) const;
private:
    MatfiltVstructConditionalEvaluator() = default;
 
    MatfiltVstructConditionalEvaluatorImpl *_impl = nullptr;
};
 
PXR_NAMESPACE_CLOSE_SCOPE
 
#endif // EXT_RMANPKG_PLUGIN_RENDERMAN_PLUGIN_HD_PRMAN_MATFILT_RESOLVE_VSTRUCTS_H