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// Copyright 2009-2021 Intel Corporation
// SPDX-License-Identifier: Apache-2.0
#include "instance_array_intersector.h"
#include "../common/scene.h"
#include "../common/instance_stack.h"
#include <mutex>
namespace embree
{
namespace isa
{
void InstanceArrayIntersector1::intersect(const Precalculations& pre, RayHit& ray, RayQueryContext* context, const Primitive& prim)
{
InstanceArray* instance = context->scene->get<InstanceArray>(prim.instID_);
Accel* object = instance->getObject(prim.primID_);
if (!object) return;
/* perform ray mask test */
#if defined(EMBREE_RAY_MASK)
if ((ray.mask & instance->mask) == 0)
return;
#endif
RTCRayQueryContext* user_context = context->user;
if (likely(instance_id_stack::push(user_context, prim.instID_, prim.primID_)))
{
const AffineSpace3fa world2local = instance->getWorld2Local(prim.primID_);
const Vec3ff ray_org = ray.org;
const Vec3ff ray_dir = ray.dir;
ray.org = Vec3ff(xfmPoint(world2local, ray_org), ray.tnear());
ray.dir = Vec3ff(xfmVector(world2local, ray_dir), ray.time());
RayQueryContext newcontext((Scene*)object, user_context, context->args);
object->intersectors.intersect((RTCRayHit&)ray, &newcontext);
ray.org = ray_org;
ray.dir = ray_dir;
instance_id_stack::pop(user_context);
}
}
bool InstanceArrayIntersector1::occluded(const Precalculations& pre, Ray& ray, RayQueryContext* context, const Primitive& prim)
{
const InstanceArray* instance = context->scene->get<InstanceArray>(prim.instID_);
Accel* object = instance->getObject(prim.primID_);
if (!object) return false;
/* perform ray mask test */
#if defined(EMBREE_RAY_MASK)
if ((ray.mask & instance->mask) == 0)
return false;
#endif
RTCRayQueryContext* user_context = context->user;
bool occluded = false;
if (likely(instance_id_stack::push(user_context, prim.instID_, prim.primID_)))
{
const AffineSpace3fa world2local = instance->getWorld2Local(prim.primID_);
Accel* object = instance->getObject(prim.primID_);
const Vec3ff ray_org = ray.org;
const Vec3ff ray_dir = ray.dir;
ray.org = Vec3ff(xfmPoint(world2local, ray_org), ray.tnear());
ray.dir = Vec3ff(xfmVector(world2local, ray_dir), ray.time());
RayQueryContext newcontext((Scene*)object, user_context, context->args);
object->intersectors.occluded((RTCRay&)ray, &newcontext);
ray.org = ray_org;
ray.dir = ray_dir;
occluded = ray.tfar < 0.0f;
instance_id_stack::pop(user_context);
}
return occluded;
}
bool InstanceArrayIntersector1::pointQuery(PointQuery* query, PointQueryContext* context, const Primitive& prim)
{
const InstanceArray* instance = context->scene->get<InstanceArray>(prim.instID_);
Accel* object = instance->getObject(prim.primID_);
if (!object) return false;
const AffineSpace3fa local2world = instance->getLocal2World(prim.primID_);
const AffineSpace3fa world2local = instance->getWorld2Local(prim.primID_);
float similarityScale = 0.f;
const bool similtude = context->query_type == POINT_QUERY_TYPE_SPHERE
&& similarityTransform(world2local, &similarityScale);
assert((similtude && similarityScale > 0) || !similtude);
if (likely(instance_id_stack::push(context->userContext, prim.instID_, prim.primID_, world2local, local2world)))
{
PointQuery query_inst;
query_inst.time = query->time;
query_inst.p = xfmPoint(world2local, query->p);
query_inst.radius = query->radius * similarityScale;
PointQueryContext context_inst(
(Scene*)object,
context->query_ws,
similtude ? POINT_QUERY_TYPE_SPHERE : POINT_QUERY_TYPE_AABB,
context->func,
context->userContext,
similarityScale,
context->userPtr);
bool changed = object->intersectors.pointQuery(&query_inst, &context_inst);
instance_id_stack::pop(context->userContext);
return changed;
}
return false;
}
void InstanceArrayIntersector1MB::intersect(const Precalculations& pre, RayHit& ray, RayQueryContext* context, const Primitive& prim)
{
const InstanceArray* instance = context->scene->get<InstanceArray>(prim.instID_);
Accel* object = instance->getObject(prim.primID_);
if (!object) return;
/* perform ray mask test */
#if defined(EMBREE_RAY_MASK)
if ((ray.mask & instance->mask) == 0)
return;
#endif
RTCRayQueryContext* user_context = context->user;
if (likely(instance_id_stack::push(user_context, prim.instID_, prim.primID_)))
{
const AffineSpace3fa world2local = instance->getWorld2Local(prim.primID_, ray.time());
const Vec3ff ray_org = ray.org;
const Vec3ff ray_dir = ray.dir;
ray.org = Vec3ff(xfmPoint(world2local, ray_org), ray.tnear());
ray.dir = Vec3ff(xfmVector(world2local, ray_dir), ray.time());
RayQueryContext newcontext((Scene*)object, user_context, context->args);
object->intersectors.intersect((RTCRayHit&)ray, &newcontext);
ray.org = ray_org;
ray.dir = ray_dir;
instance_id_stack::pop(user_context);
}
}
bool InstanceArrayIntersector1MB::occluded(const Precalculations& pre, Ray& ray, RayQueryContext* context, const Primitive& prim)
{
const InstanceArray* instance = context->scene->get<InstanceArray>(prim.instID_);
Accel* object = instance->getObject(prim.primID_);
if (!object) return false;
/* perform ray mask test */
#if defined(EMBREE_RAY_MASK)
if ((ray.mask & instance->mask) == 0)
return false;
#endif
RTCRayQueryContext* user_context = context->user;
bool occluded = false;
if (likely(instance_id_stack::push(user_context, prim.instID_, prim.primID_)))
{
const AffineSpace3fa world2local = instance->getWorld2Local(prim.primID_, ray.time());
const Vec3ff ray_org = ray.org;
const Vec3ff ray_dir = ray.dir;
ray.org = Vec3ff(xfmPoint(world2local, ray_org), ray.tnear());
ray.dir = Vec3ff(xfmVector(world2local, ray_dir), ray.time());
RayQueryContext newcontext((Scene*)object, user_context, context->args);
object->intersectors.occluded((RTCRay&)ray, &newcontext);
ray.org = ray_org;
ray.dir = ray_dir;
occluded = ray.tfar < 0.0f;
instance_id_stack::pop(user_context);
}
return occluded;
}
bool InstanceArrayIntersector1MB::pointQuery(PointQuery* query, PointQueryContext* context, const Primitive& prim)
{
const InstanceArray* instance = context->scene->get<InstanceArray>(prim.instID_);
Accel* object = instance->getObject(prim.primID_);
if (!object) return false;
const AffineSpace3fa local2world = instance->getLocal2World(prim.primID_, query->time);
const AffineSpace3fa world2local = instance->getWorld2Local(prim.primID_, query->time);
float similarityScale = 0.f;
const bool similtude = context->query_type == POINT_QUERY_TYPE_SPHERE
&& similarityTransform(world2local, &similarityScale);
if (likely(instance_id_stack::push(context->userContext, prim.instID_, prim.primID_, world2local, local2world)))
{
PointQuery query_inst;
query_inst.time = query->time;
query_inst.p = xfmPoint(world2local, query->p);
query_inst.radius = query->radius * similarityScale;
PointQueryContext context_inst(
(Scene*)object,
context->query_ws,
similtude ? POINT_QUERY_TYPE_SPHERE : POINT_QUERY_TYPE_AABB,
context->func,
context->userContext,
similarityScale,
context->userPtr);
bool changed = object->intersectors.pointQuery(&query_inst, &context_inst);
instance_id_stack::pop(context->userContext);
return changed;
}
return false;
}
template<int K>
void InstanceArrayIntersectorK<K>::intersect(const vbool<K>& valid_i, const Precalculations& pre, RayHitK<K>& ray, RayQueryContext* context, const Primitive& prim)
{
vbool<K> valid = valid_i;
const InstanceArray* instance = context->scene->get<InstanceArray>(prim.instID_);
Accel* object = instance->getObject(prim.primID_);
if (!object) return;
/* perform ray mask test */
#if defined(EMBREE_RAY_MASK)
valid &= (ray.mask & instance->mask) != 0;
if (none(valid)) return;
#endif
RTCRayQueryContext* user_context = context->user;
if (likely(instance_id_stack::push(user_context, prim.instID_, prim.primID_)))
{
const AffineSpace3vf<K> world2local = instance->getWorld2Local(prim.primID_);
const Vec3vf<K> ray_org = ray.org;
const Vec3vf<K> ray_dir = ray.dir;
ray.org = xfmPoint(world2local, ray_org);
ray.dir = xfmVector(world2local, ray_dir);
RayQueryContext newcontext((Scene*)object, user_context, context->args);
object->intersectors.intersect(valid, ray, &newcontext);
ray.org = ray_org;
ray.dir = ray_dir;
instance_id_stack::pop(user_context);
}
}
template<int K>
vbool<K> InstanceArrayIntersectorK<K>::occluded(const vbool<K>& valid_i, const Precalculations& pre, RayK<K>& ray, RayQueryContext* context, const Primitive& prim)
{
vbool<K> valid = valid_i;
const InstanceArray* instance = context->scene->get<InstanceArray>(prim.instID_);
Accel* object = instance->getObject(prim.primID_);
if (!object) return false;
/* perform ray mask test */
#if defined(EMBREE_RAY_MASK)
valid &= (ray.mask & instance->mask) != 0;
if (none(valid)) return false;
#endif
RTCRayQueryContext* user_context = context->user;
vbool<K> occluded = false;
if (likely(instance_id_stack::push(user_context, prim.instID_, prim.primID_)))
{
const AffineSpace3vf<K> world2local = instance->getWorld2Local(prim.primID_);
const Vec3vf<K> ray_org = ray.org;
const Vec3vf<K> ray_dir = ray.dir;
ray.org = xfmPoint(world2local, ray_org);
ray.dir = xfmVector(world2local, ray_dir);
RayQueryContext newcontext((Scene*)object, user_context, context->args);
object->intersectors.occluded(valid, ray, &newcontext);
ray.org = ray_org;
ray.dir = ray_dir;
occluded = ray.tfar < 0.0f;
instance_id_stack::pop(user_context);
}
return occluded;
}
template<int K>
void InstanceArrayIntersectorKMB<K>::intersect(const vbool<K>& valid_i, const Precalculations& pre, RayHitK<K>& ray, RayQueryContext* context, const Primitive& prim)
{
vbool<K> valid = valid_i;
const InstanceArray* instance = context->scene->get<InstanceArray>(prim.instID_);
Accel* object = instance->getObject(prim.primID_);
if (!object) return;
/* perform ray mask test */
#if defined(EMBREE_RAY_MASK)
valid &= (ray.mask & instance->mask) != 0;
if (none(valid)) return;
#endif
RTCRayQueryContext* user_context = context->user;
if (likely(instance_id_stack::push(user_context, prim.instID_, prim.primID_)))
{
AffineSpace3vf<K> world2local = instance->getWorld2Local<K>(prim.primID_, valid, ray.time());
const Vec3vf<K> ray_org = ray.org;
const Vec3vf<K> ray_dir = ray.dir;
ray.org = xfmPoint(world2local, ray_org);
ray.dir = xfmVector(world2local, ray_dir);
RayQueryContext newcontext((Scene*)object, user_context, context->args);
object->intersectors.intersect(valid, ray, &newcontext);
ray.org = ray_org;
ray.dir = ray_dir;
instance_id_stack::pop(user_context);
}
}
template<int K>
vbool<K> InstanceArrayIntersectorKMB<K>::occluded(const vbool<K>& valid_i, const Precalculations& pre, RayK<K>& ray, RayQueryContext* context, const Primitive& prim)
{
vbool<K> valid = valid_i;
const InstanceArray* instance = context->scene->get<InstanceArray>(prim.instID_);
Accel* object = instance->getObject(prim.primID_);
if (!object) return false;
/* perform ray mask test */
#if defined(EMBREE_RAY_MASK)
valid &= (ray.mask & instance->mask) != 0;
if (none(valid)) return false;
#endif
RTCRayQueryContext* user_context = context->user;
vbool<K> occluded = false;
if (likely(instance_id_stack::push(user_context, prim.instID_, prim.primID_)))
{
AffineSpace3vf<K> world2local = instance->getWorld2Local<K>(prim.primID_, valid, ray.time());
const Vec3vf<K> ray_org = ray.org;
const Vec3vf<K> ray_dir = ray.dir;
ray.org = xfmPoint(world2local, ray_org);
ray.dir = xfmVector(world2local, ray_dir);
RayQueryContext newcontext((Scene*)object, user_context, context->args);
object->intersectors.occluded(valid, ray, &newcontext);
ray.org = ray_org;
ray.dir = ray_dir;
occluded = ray.tfar < 0.0f;
instance_id_stack::pop(user_context);
}
return occluded;
}
#if defined(__SSE__) || defined(__ARM_NEON)
template struct InstanceArrayIntersectorK<4>;
template struct InstanceArrayIntersectorKMB<4>;
#endif
#if defined(__AVX__)
template struct InstanceArrayIntersectorK<8>;
template struct InstanceArrayIntersectorKMB<8>;
#endif
#if defined(__AVX512F__)
template struct InstanceArrayIntersectorK<16>;
template struct InstanceArrayIntersectorKMB<16>;
#endif
}
}
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