Differential D6602 Diff 20889 intern/cycles/bvh/bvh_embree.cpp

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intern/cycles/bvh/bvh_embree.cpp

Show First 20 Lines • Show All 140 Lines • ▼ Show 20 Lines	case CCLIntersectContext::RAY_SHADOW_ALL: {
}		}
else {		else {
/* Increase the number of hits beyond ray.max_hits		/* Increase the number of hits beyond ray.max_hits
* so that the caller can detect this as opaque. */		* so that the caller can detect this as opaque. */
++ctx->num_hits;		++ctx->num_hits;
}		}
break;		break;
}		}
		case CCLIntersectContext::RAY_LOCAL:
case CCLIntersectContext::RAY_SSS: {		case CCLIntersectContext::RAY_SSS: {
		/* Check if it's hitting the correct object. */
		Intersection current_isect;
		if (ctx->type == CCLIntersectContext::RAY_SSS) {
		kernel_embree_convert_sss_hit(kg, ray, hit, &current_isect, ctx->local_object_id);
		}
		else {
		kernel_embree_convert_hit(kg, ray, hit, &current_isect);
		if (ctx->local_object_id != current_isect.object) {
		/* This tells Embree to continue tracing. */
		*args->valid = 0;
		}
		}

/* No intersection information requested, just return a hit. */		/* No intersection information requested, just return a hit. */
if (ctx->max_hits == 0) {		if (ctx->max_hits == 0) {
break;		break;
}		}

/* Ignore curves. */		/* Ignore curves. */
if (hit->geomID & 1) {		if (hit->geomID & 1) {
/* This tells Embree to continue tracing. */		/* This tells Embree to continue tracing. */
*args->valid = 0;		*args->valid = 0;
break;		break;
}		}

/* See triangle_intersect_subsurface() for the native equivalent. */		/* See triangle_intersect_subsurface() for the native equivalent. */
for (int i = min(ctx->max_hits, ctx->ss_isect->num_hits) - 1; i >= 0; --i) {		for (int i = min(ctx->max_hits, ctx->local_isect->num_hits) - 1; i >= 0; --i) {
if (ctx->ss_isect->hits[i].t == ray->tfar) {		if (ctx->local_isect->hits[i].t == ray->tfar) {
/* This tells Embree to continue tracing. */		/* This tells Embree to continue tracing. */
*args->valid = 0;		*args->valid = 0;
break;		break;
}		}
}		}

int hit_idx = 0;		int hit_idx = 0;

if (ctx->lcg_state) {		if (ctx->lcg_state) {

++ctx->ss_isect->num_hits;		++ctx->local_isect->num_hits;
if (ctx->ss_isect->num_hits <= ctx->max_hits) {		if (ctx->local_isect->num_hits <= ctx->max_hits) {
hit_idx = ctx->ss_isect->num_hits - 1;		hit_idx = ctx->local_isect->num_hits - 1;
}		}
else {		else {
/* reservoir sampling: if we are at the maximum number of		/* reservoir sampling: if we are at the maximum number of
* hits, randomly replace element or skip it */		* hits, randomly replace element or skip it */
hit_idx = lcg_step_uint(ctx->lcg_state) % ctx->ss_isect->num_hits;		hit_idx = lcg_step_uint(ctx->lcg_state) % ctx->local_isect->num_hits;

if (hit_idx >= ctx->max_hits) {		if (hit_idx >= ctx->max_hits) {
/* This tells Embree to continue tracing. */		/* This tells Embree to continue tracing. */
*args->valid = 0;		*args->valid = 0;
break;		break;
}		}
}		}
}		}
else {		else {
ctx->ss_isect->num_hits = 1;		ctx->local_isect->num_hits = 1;
}		}
/* record intersection */		/* record intersection */
kernel_embree_convert_local_hit(		ctx->local_isect->hits[hit_idx] = current_isect;
kg, ray, hit, &ctx->ss_isect->hits[hit_idx], ctx->sss_object_id);		ctx->local_isect->Ng[hit_idx] = normalize(make_float3(hit->Ng_x, hit->Ng_y, hit->Ng_z));
ctx->ss_isect->Ng[hit_idx].x = hit->Ng_x;
ctx->ss_isect->Ng[hit_idx].y = hit->Ng_y;
ctx->ss_isect->Ng[hit_idx].z = hit->Ng_z;
ctx->ss_isect->Ng[hit_idx] = normalize(ctx->ss_isect->Ng[hit_idx]);
/* This tells Embree to continue tracing .*/		/* This tells Embree to continue tracing .*/
*args->valid = 0;		*args->valid = 0;
break;		break;
}		}
case CCLIntersectContext::RAY_VOLUME_ALL: {		case CCLIntersectContext::RAY_VOLUME_ALL: {
/* Append the intersection to the end of the array. */		/* Append the intersection to the end of the array. */
if (ctx->num_hits < ctx->max_hits) {		if (ctx->num_hits < ctx->max_hits) {
Intersection current_isect;		Intersection current_isect;
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