Differential D2226 Diff 7481 intern/cycles/kernel/bvh/bvh.h

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intern/cycles/kernel/bvh/bvh.h

Show First 20 Lines • Show All 351 Lines • ▼ Show 20 Lines	#ifdef __INTERSECTION_REFINE__

return res;		return res;
#else		#else
const float epsilon_f = 1e-4f;		const float epsilon_f = 1e-4f;
return P + epsilon_f*Ng;		return P + epsilon_f*Ng;
#endif		#endif
}		}

#if defined(__SHADOW_RECORD_ALL__) \|\| defined (__VOLUME_RECORD_ALL__)		#if defined(__SHADOW_RECORD_ALL__) \|\| defined(__VOLUME_RECORD_ALL__)
/* ToDo: Move to another file? */		/* ToDo: Move to another file? */
ccl_device int intersections_compare(const void a, const void b)		ccl_device int intersections_compare(const void a, const void b)
{		{
const Intersection isect_a = (const Intersection)a;		const Intersection isect_a = (const Intersection)a;
const Intersection isect_b = (const Intersection)b;		const Intersection isect_b = (const Intersection)b;

if(isect_a->t < isect_b->t)		if(isect_a->t < isect_b->t)
return -1;		return -1;
else if(isect_a->t > isect_b->t)		else if(isect_a->t > isect_b->t)
return 1;		return 1;
else		else
return 0;		return 0;
}		}

		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. */
		int i, j;
		for(i = 0; i < num_hits; ++i) {
		for(j = 0; j < num_hits - 1; ++j) {
		if(hits[j].t < hits[j + 1].t) {
		Intersection tmp = hits[j];
		hits[j] = hits[j + 1];
		hits[j + 1] = tmp;
		}
		}
		}
		#else
		qsort(hits, num_hits, sizeof(Intersection), intersections_compare);
#endif		#endif
		}
		#endif /* __SHADOW_RECORD_ALL__ \| __VOLUME_RECORD_ALL__ */

CCL_NAMESPACE_END		CCL_NAMESPACE_END