79 lines
2.3 KiB
C++
79 lines
2.3 KiB
C++
// Copyright 2009-2021 Intel Corporation
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// SPDX-License-Identifier: Apache-2.0
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#pragma once
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#include "primitive.h"
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#include "../common/scene_instance.h"
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namespace embree
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{
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struct InstancePrimitive
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{
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struct Type : public PrimitiveType
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{
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const char* name() const;
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size_t sizeActive(const char* This) const;
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size_t sizeTotal(const char* This) const;
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size_t getBytes(const char* This) const;
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};
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static Type type;
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public:
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/* primitive supports multiple time segments */
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static const bool singleTimeSegment = false;
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/* Returns maximum number of stored primitives */
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static __forceinline size_t max_size() { return 1; }
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/* Returns required number of primitive blocks for N primitives */
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static __forceinline size_t blocks(size_t N) { return N; }
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public:
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InstancePrimitive (const Instance* instance, unsigned int instID)
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: instance(instance)
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, instID_(instID)
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{}
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__forceinline void fill(const PrimRef* prims, size_t& i, size_t end, Scene* scene)
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{
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assert(end-i == 1);
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const PrimRef& prim = prims[i]; i++;
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const unsigned int geomID = prim.geomID();
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const Instance* instance = scene->get<Instance>(geomID);
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new (this) InstancePrimitive(instance, geomID);
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}
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__forceinline LBBox3fa fillMB(const PrimRef* prims, size_t& i, size_t end, Scene* scene, size_t itime)
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{
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assert(end-i == 1);
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const PrimRef& prim = prims[i]; i++;
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const unsigned int geomID = prim.geomID();
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const Instance* instance = scene->get<Instance>(geomID);
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new (this) InstancePrimitive(instance,geomID);
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return instance->linearBounds(0,itime);
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}
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__forceinline LBBox3fa fillMB(const PrimRefMB* prims, size_t& i, size_t end, Scene* scene, const BBox1f time_range)
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{
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assert(end-i == 1);
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const PrimRefMB& prim = prims[i]; i++;
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const unsigned int geomID = prim.geomID();
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const Instance* instance = scene->get<Instance>(geomID);
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new (this) InstancePrimitive(instance,geomID);
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return instance->linearBounds(0,time_range);
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}
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/* Updates the primitive */
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__forceinline BBox3fa update(Instance* instance) {
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return instance->bounds(0);
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}
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public:
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const Instance* instance;
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const unsigned int instID_ = std::numeric_limits<unsigned int>::max ();
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};
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}
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