Will Usher
078c589aaa
Use an enum + switch statements to avoid issues/limitations with function ptrs. Renable volumes with OpenVKL when running on CPU w/ enable volumes Put both CPU and GPU modules behind CMake flags workaround odd bug with AO renderer and intervals Add spheres geometry and port to use Embree sphere point Push math constants for RNG to USM instead of in global constant WA for `Material_dispatch_getTransparency` hang, working path tracer Re-enable subdivision surfaces for CPU-only Port Texture2D to use switch statement dispatch Migrate all materials to switch dispatch Add option for large grf, does improve performance Workaround for TextureParam get3f bug Update headers and APIs for L0 interop header updates/deprecations
113 lines
3.2 KiB
Plaintext
113 lines
3.2 KiB
Plaintext
// Copyright 2009 Intel Corporation
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// SPDX-License-Identifier: Apache-2.0
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#pragma once
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// ospray stuff
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#include "../geometry/GeometricModel.ih"
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#include "DifferentialGeometry.ih"
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#include "MotionTransform.ih"
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#include "Ray.ih"
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// c++ shared
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#include "GroupShared.h"
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#include "InstanceShared.h"
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OSPRAY_BEGIN_ISPC_NAMESPACE
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struct Renderer;
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inline uniform AffineSpace3f Instance_getTransform(
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const Instance *uniform self, const uniform float time)
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{
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// TODO: rtcGetGeometryTransform is missing the SYCL_EXTERNAL attribute
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// Is there a different function we should call?
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return self->xfm;
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// return getInterpolatedTransform(self->geom, time);
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}
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#ifndef OSPRAY_TARGET_DPCPP
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inline AffineSpace3f Instance_getTransform(
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const Instance *uniform self, const float time)
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{
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return getInterpolatedTransform(self->geom, time);
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}
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#endif
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inline void Instance_postIntersect(const Instance *uniform self,
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const Renderer *uniform renderer,
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varying DifferentialGeometry &dg,
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const varying Ray &ray,
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uniform int64 flags,
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const uniform bool clip = false)
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{
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GeometricModel **uniform models =
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clip ? self->group->clipModels : self->group->geometricModels;
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#ifdef OSPRAY_TARGET_DPCPP
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{
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// DPC++ execution in a thread is scalar
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const uint32 geomID = ray.geomID;
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#else
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foreach_unique (geomID in ray.geomID) {
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#endif
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GeometricModel_postIntersect(*(models + geomID), renderer, dg, ray, flags);
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}
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dg.instID =
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(self->userID == RTC_INVALID_GEOMETRY_ID) ? ray.instID : self->userID;
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uniform AffineSpace3f uxfm = self->xfm;
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uniform AffineSpace3f rcp_uxfm = self->rcp_xfm;
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#if 0
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if ((flags & DG_MOTIONBLUR) == DG_MOTIONBLUR && self->motionBlur) {
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uniform float utime;
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uniform int cnt = 0;
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#ifdef OSPRAY_TARGET_DPCPP
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{
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// DPC++ execution in a thread is scalar
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const float t = ray.time;
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#else
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foreach_unique (t in ray.time) {
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#endif
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utime = t;
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cnt++;
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}
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if (cnt > 1) { // varying xfm
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const AffineSpace3f xfm = Instance_getTransform(self, ray.time);
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const AffineSpace3f rcp_xfm = rcp(xfm);
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dg.lP = xfmPoint(rcp_xfm, dg.P);
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dg.Ns = xfmVector(transposed(rcp_xfm.l), dg.Ns);
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dg.Ng = xfmVector(transposed(rcp_xfm.l), dg.Ng);
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// scale dg.epsilon by max (epsilon is scalar and thus assumed to be
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// isotropic anyway and hence cannot better handle non-uniform scaling)
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dg.epsilon *= max(abs(xfm.l.vx.x), max(abs(xfm.l.vy.y), abs(xfm.l.vz.z)));
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if (flags & DG_TANGENTS) {
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dg.dPds = xfmVector(xfm, dg.dPds);
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dg.dPdt = xfmVector(xfm, dg.dPdt);
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}
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return;
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} else { // uniform xfm
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uxfm = Instance_getTransform(self, utime);
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rcp_uxfm = rcp(uxfm);
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}
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}
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#endif
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dg.lP = xfmPoint(rcp_uxfm, dg.P);
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dg.Ns = xfmVector(transposed(rcp_uxfm.l), dg.Ns);
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dg.Ng = xfmVector(transposed(rcp_uxfm.l), dg.Ng);
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// scale dg.epsilon by max (epsilon is scalar and thus assumed to be
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// isotropic anyway and hence cannot better handle non-uniform scaling)
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dg.epsilon *= max(abs(uxfm.l.vx.x), max(abs(uxfm.l.vy.y), abs(uxfm.l.vz.z)));
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if (flags & DG_TANGENTS) {
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dg.dPds = xfmVector(uxfm, dg.dPds);
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dg.dPdt = xfmVector(uxfm, dg.dPdt);
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}
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}
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OSPRAY_END_ISPC_NAMESPACE
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