instanceSchema.h

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//
// Copyright 2023 Pixar
//
// Licensed under the Apache License, Version 2.0 (the "Apache License")
// with the following modification; you may not use this file except in
// compliance with the Apache License and the following modification to it:
// Section 6. Trademarks. is deleted and replaced with:
//
// 6. Trademarks. This License does not grant permission to use the trade
//    names, trademarks, service marks, or product names of the Licensor
//    and its affiliates, except as required to comply with Section 4(c) of
//    the License and to reproduce the content of the NOTICE file.
//
// You may obtain a copy of the Apache License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the Apache License with the above modification is
// distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the Apache License for the specific
// language governing permissions and limitations under the Apache License.
//
 
/* ************************************************************************** */
/* **                                                                      ** */
/* ** This file is generated by a script.                                  ** */
/* **                                                                      ** */
/* ** Do not edit it directly (unless it is within a CUSTOM CODE section)! ** */
/* ** Edit hdSchemaDefs.py instead to make changes.                        ** */
/* **                                                                      ** */
/* ************************************************************************** */
 
#ifndef PXR_IMAGING_HD_INSTANCE_SCHEMA_H
#define PXR_IMAGING_HD_INSTANCE_SCHEMA_H
 
 
#include "pxr/imaging/hd/api.h"
 
#include "pxr/imaging/hd/schema.h"
 
// --(BEGIN CUSTOM CODE: Includes)--
// --(END CUSTOM CODE: Includes)--
 
PXR_NAMESPACE_OPEN_SCOPE
 
// --(BEGIN CUSTOM CODE: Declares)--
// --(END CUSTOM CODE: Declares)--
 
#define HD_INSTANCE_SCHEMA_TOKENS \
    (instance) \
    (instancer) \
    (prototypeIndex) \
    (instanceIndex) \
 
TF_DECLARE_PUBLIC_TOKENS(HdInstanceSchemaTokens, HD_API,
    HD_INSTANCE_SCHEMA_TOKENS);
 
//-----------------------------------------------------------------------------
 
// This schema can be considered the opposite of instancerTopology's
// "instanceLocations". When the scene coalesces scene prims into multiple
// instances of a single prototype, it inserts "instance" prims at the site of
// de-duplication. The instancer prim added to manage the prototype uses
// "instanceLocations" to point back to all of these instance prims.
//
// The instance prims aren't directly useful for rendering but can be useful
// for scene processing and data aggregation.
//
 
class HdInstanceSchema : public HdSchema
{
public:
 
    HdInstanceSchema(HdContainerDataSourceHandle container)
      : HdSchema(container) {}
 
    HD_API
    static HdInstanceSchema GetFromParent(
        const HdContainerDataSourceHandle &fromParentContainer);
 
 
// --(BEGIN CUSTOM CODE: Schema Methods)--
// --(END CUSTOM CODE: Schema Methods)--
 
 
    HD_API
    HdPathDataSourceHandle GetInstancer() const;
 
    HD_API
    HdIntDataSourceHandle GetPrototypeIndex() const;
 
    HD_API
    HdIntDataSourceHandle GetInstanceIndex() const; 
 
 
 
    HD_API
    static const TfToken &GetSchemaToken();
 
    HD_API
    static const HdDataSourceLocator &GetDefaultLocator();
 
 
 
    HD_API
    static HdContainerDataSourceHandle
    BuildRetained(
        const HdPathDataSourceHandle &instancer,
        const HdIntDataSourceHandle &prototypeIndex,
        const HdIntDataSourceHandle &instanceIndex
    );
 
    class Builder
    {
    public:
        HD_API
        Builder &SetInstancer(
            const HdPathDataSourceHandle &instancer);
        HD_API
        Builder &SetPrototypeIndex(
            const HdIntDataSourceHandle &prototypeIndex);
        HD_API
        Builder &SetInstanceIndex(
            const HdIntDataSourceHandle &instanceIndex);
 
        HD_API
        HdContainerDataSourceHandle Build();
 
    private:
        HdPathDataSourceHandle _instancer;
        HdIntDataSourceHandle _prototypeIndex;
        HdIntDataSourceHandle _instanceIndex;
 
    };
 
};
 
PXR_NAMESPACE_CLOSE_SCOPE
 
#endif