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// Copyright 2009-2021 Intel Corporation
// SPDX-License-Identifier: Apache-2.0
#include "../../../external/catch.hpp"
#include "../../../../kernels/geometry/sphere_intersector.h"
#include "../../../../common/simd/sse.cpp"
using namespace embree;
namespace __sphere_unit_tests_internal {
struct fakeEpilog {
fakeEpilog (Ray& ray)
: ray_(ray) {}
bool operator ()(const vbool<4> & ,
const isa::SphereIntersectorHitM<4>& hit) const {
ray_.id = -1;
for (auto i=0; i<4; ++i) {
if (hit.vt[i] > 1.e-5f && hit.vt[i] < ray_.tfar) {
ray_.tfar = hit.vt[i];
ray_.id = i;
}
}
return ray_.id != -1;
}
Ray& ray_;
};
}
TEST_CASE ("Overlapping spheres with filtering - Issue 676 fix-intersection-epilog-handling", "[spheres]")
{
isa::CurvePrecalculations1 pre;
vbool<4> valid {true, true, false, false};
Vec3fa org (14.8001127f, -9.01768494f, 3.47012758f);
Vec3fa dir (-0.989340246f, -0.0190101117f, -0.144376263f);
Ray ray (org, dir);
Vec4vf<4> v0;
v0.x = vfloat<4>{ 9.66870880f, 10.0441875f, 0.f, 0.f};
v0.y = vfloat<4>{-16.3965702f, -9.69345284f, 0.f, 0.f};
v0.z = vfloat<4>{ 3.93995930f, 3.94893074f, 0.f, 0.f};
v0.w = vfloat<4>{9.f, 9.f, 0.f, 0.f};
__sphere_unit_tests_internal::fakeEpilog epilog (ray);
isa::SphereIntersector1<4>::intersect (valid, ray, pre, v0, epilog);
int id = ray.id;
REQUIRE (id == 0);
REQUIRE (ray.tfar == Approx (10.2983));
}
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