| 40 | } |
| 41 | |
| 42 | bool InstanceArrayIntersector1::occluded(const Precalculations& pre, Ray& ray, RayQueryContext* context, const Primitive& prim) |
| 43 | { |
| 44 | const InstanceArray* instance = context->scene->get<InstanceArray>(prim.instID_); |
| 45 | Accel* object = instance->getObject(prim.primID_); |
| 46 | if (!object) return false; |
| 47 | |
| 48 | /* perform ray mask test */ |
| 49 | #if defined(EMBREE_RAY_MASK) |
| 50 | if ((ray.mask & instance->mask) == 0) |
| 51 | return false; |
| 52 | #endif |
| 53 | |
| 54 | RTCRayQueryContext* user_context = context->user; |
| 55 | bool occluded = false; |
| 56 | if (likely(instance_id_stack::push(user_context, prim.instID_, prim.primID_))) |
| 57 | { |
| 58 | const AffineSpace3fa world2local = instance->getWorld2Local(prim.primID_); |
| 59 | Accel* object = instance->getObject(prim.primID_); |
| 60 | const Vec3ff ray_org = ray.org; |
| 61 | const Vec3ff ray_dir = ray.dir; |
| 62 | ray.org = Vec3ff(xfmPoint(world2local, ray_org), ray.tnear()); |
| 63 | ray.dir = Vec3ff(xfmVector(world2local, ray_dir), ray.time()); |
| 64 | RayQueryContext newcontext((Scene*)object, user_context, context->args); |
| 65 | object->intersectors.occluded((RTCRay&)ray, &newcontext); |
| 66 | ray.org = ray_org; |
| 67 | ray.dir = ray_dir; |
| 68 | occluded = ray.tfar < 0.0f; |
| 69 | instance_id_stack::pop(user_context); |
| 70 | } |
| 71 | return occluded; |
| 72 | } |
| 73 | |
| 74 | bool InstanceArrayIntersector1::pointQuery(PointQuery* query, PointQueryContext* context, const Primitive& prim) |
| 75 | { |