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Diffstat (limited to 'intern/cycles/kernel/bvh/bvh.h')
-rw-r--r--intern/cycles/kernel/bvh/bvh.h98
1 files changed, 3 insertions, 95 deletions
diff --git a/intern/cycles/kernel/bvh/bvh.h b/intern/cycles/kernel/bvh/bvh.h
index 3049f243ae9..3a3f38539c5 100644
--- a/intern/cycles/kernel/bvh/bvh.h
+++ b/intern/cycles/kernel/bvh/bvh.h
@@ -29,9 +29,10 @@
# include "kernel/bvh/bvh_embree.h"
#endif
-CCL_NAMESPACE_BEGIN
-
#include "kernel/bvh/bvh_types.h"
+#include "kernel/bvh/bvh_util.h"
+
+CCL_NAMESPACE_BEGIN
#ifndef __KERNEL_OPTIX__
@@ -533,97 +534,4 @@ ccl_device_intersect uint scene_intersect_volume_all(KernelGlobals *kg,
}
#endif /* __VOLUME_RECORD_ALL__ */
-/* Ray offset to avoid self intersection.
- *
- * This function should be used to compute a modified ray start position for
- * rays leaving from a surface. */
-
-ccl_device_inline float3 ray_offset(float3 P, float3 Ng)
-{
-#ifdef __INTERSECTION_REFINE__
- const float epsilon_f = 1e-5f;
- /* ideally this should match epsilon_f, but instancing and motion blur
- * precision makes it problematic */
- const float epsilon_test = 1.0f;
- const int epsilon_i = 32;
-
- float3 res;
-
- /* x component */
- if (fabsf(P.x) < epsilon_test) {
- res.x = P.x + Ng.x * epsilon_f;
- }
- else {
- uint ix = __float_as_uint(P.x);
- ix += ((ix ^ __float_as_uint(Ng.x)) >> 31) ? -epsilon_i : epsilon_i;
- res.x = __uint_as_float(ix);
- }
-
- /* y component */
- if (fabsf(P.y) < epsilon_test) {
- res.y = P.y + Ng.y * epsilon_f;
- }
- else {
- uint iy = __float_as_uint(P.y);
- iy += ((iy ^ __float_as_uint(Ng.y)) >> 31) ? -epsilon_i : epsilon_i;
- res.y = __uint_as_float(iy);
- }
-
- /* z component */
- if (fabsf(P.z) < epsilon_test) {
- res.z = P.z + Ng.z * epsilon_f;
- }
- else {
- uint iz = __float_as_uint(P.z);
- iz += ((iz ^ __float_as_uint(Ng.z)) >> 31) ? -epsilon_i : epsilon_i;
- res.z = __uint_as_float(iz);
- }
-
- return res;
-#else
- const float epsilon_f = 1e-4f;
- return P + epsilon_f * Ng;
-#endif
-}
-
-#if defined(__VOLUME_RECORD_ALL__) || (defined(__SHADOW_RECORD_ALL__) && defined(__KERNEL_CPU__))
-/* ToDo: Move to another file? */
-ccl_device int intersections_compare(const void *a, const void *b)
-{
- const Intersection *isect_a = (const Intersection *)a;
- const Intersection *isect_b = (const Intersection *)b;
-
- if (isect_a->t < isect_b->t)
- return -1;
- else if (isect_a->t > isect_b->t)
- return 1;
- else
- return 0;
-}
-#endif
-
-#if defined(__SHADOW_RECORD_ALL__)
-ccl_device_inline void sort_intersections(Intersection *hits, uint num_hits)
-{
-# ifdef __KERNEL_GPU__
- /* Use bubble sort which has more friendly memory pattern on GPU. */
- bool swapped;
- do {
- swapped = false;
- for (int j = 0; j < num_hits - 1; ++j) {
- if (hits[j].t > hits[j + 1].t) {
- struct Intersection tmp = hits[j];
- hits[j] = hits[j + 1];
- hits[j + 1] = tmp;
- swapped = true;
- }
- }
- --num_hits;
- } while (swapped);
-# else
- qsort(hits, num_hits, sizeof(Intersection), intersections_compare);
-# endif
-}
-#endif /* __SHADOW_RECORD_ALL__ | __VOLUME_RECORD_ALL__ */
-
CCL_NAMESPACE_END