diff options
Diffstat (limited to 'intern/cycles/render/hair.cpp')
| -rw-r--r-- | intern/cycles/render/hair.cpp | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/intern/cycles/render/hair.cpp b/intern/cycles/render/hair.cpp index d67bd209142..a64b8242337 100644 --- a/intern/cycles/render/hair.cpp +++ b/intern/cycles/render/hair.cpp @@ -14,6 +14,8 @@ * limitations under the License. */ +#include "bvh/bvh.h" + #include "render/hair.h" #include "render/curves.h" #include "render/scene.h" @@ -492,4 +494,35 @@ void Hair::pack_curves(Scene *scene, } } +void Hair::pack_primitives(PackedBVH &pack, int object, uint visibility) +{ + if (curve_first_key.empty()) + return; + + const size_t num_prims = num_segments(); + pack.prim_tri_index.reserve(pack.prim_tri_index.size() + num_prims); + pack.prim_type.reserve(pack.prim_type.size() + num_prims); + pack.prim_visibility.reserve(pack.prim_visibility.size() + num_prims); + pack.prim_index.reserve(pack.prim_index.size() + num_prims); + pack.prim_object.reserve(pack.prim_object.size() + num_prims); + // 'pack.prim_time' is unused by Embree and OptiX + + uint type = has_motion_blur() ? + ((curve_shape == CURVE_RIBBON) ? PRIMITIVE_MOTION_CURVE_RIBBON : + PRIMITIVE_MOTION_CURVE_THICK) : + ((curve_shape == CURVE_RIBBON) ? PRIMITIVE_CURVE_RIBBON : PRIMITIVE_CURVE_THICK); + + for (size_t j = 0; j < num_curves(); ++j) { + Curve curve = get_curve(j); + for (size_t k = 0; k < curve.num_segments(); ++k) { + pack.prim_tri_index.push_back_reserved(-1); + pack.prim_type.push_back_reserved(PRIMITIVE_PACK_SEGMENT(type, k)); + pack.prim_visibility.push_back_reserved(visibility); + // Each curve segment points back to its curve index + pack.prim_index.push_back_reserved(j + prim_offset); + pack.prim_object.push_back_reserved(object); + } + } +} + CCL_NAMESPACE_END |