| 38 | } |
| 39 | |
| 40 | bool InstanceIntersector1::occluded(const Precalculations& pre, Ray& ray, RayQueryContext* context, const InstancePrimitive& prim) |
| 41 | { |
| 42 | const Instance* instance = prim.instance; |
| 43 | |
| 44 | /* perform ray mask test */ |
| 45 | #if defined(EMBREE_RAY_MASK) |
| 46 | if ((ray.mask & instance->mask) == 0) |
| 47 | return false; |
| 48 | #endif |
| 49 | |
| 50 | RTCRayQueryContext* user_context = context->user; |
| 51 | bool occluded = false; |
| 52 | if (likely(instance_id_stack::push(user_context, prim.instID_, 0))) |
| 53 | { |
| 54 | const AffineSpace3fa world2local = instance->getWorld2Local(); |
| 55 | const Vec3ff ray_org = ray.org; |
| 56 | const Vec3ff ray_dir = ray.dir; |
| 57 | ray.org = Vec3ff(xfmPoint(world2local, ray_org), ray.tnear()); |
| 58 | ray.dir = Vec3ff(xfmVector(world2local, ray_dir), ray.time()); |
| 59 | RayQueryContext newcontext((Scene*)instance->object, user_context, context->args); |
| 60 | instance->object->intersectors.occluded((RTCRay&)ray, &newcontext); |
| 61 | ray.org = ray_org; |
| 62 | ray.dir = ray_dir; |
| 63 | occluded = ray.tfar < 0.0f; |
| 64 | instance_id_stack::pop(user_context); |
| 65 | } |
| 66 | return occluded; |
| 67 | } |
| 68 | |
| 69 | bool InstanceIntersector1::pointQuery(PointQuery* query, PointQueryContext* context, const InstancePrimitive& prim) |
| 70 | { |