Module: Mesa Branch: main Commit: a096cf784fd18454250c6483574dd487ad5f87f1 URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=a096cf784fd18454250c6483574dd487ad5f87f1
Author: Friedrich Vock <[email protected]> Date: Sun Jul 9 21:09:11 2023 +0200 radv/rt: Enable exact on software intersection functions These functions need exact output, otherwise watertightness can't be guaranteed in some cases. Cc: mesa-stable Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24063> --- src/amd/vulkan/radv_rt_common.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/src/amd/vulkan/radv_rt_common.c b/src/amd/vulkan/radv_rt_common.c index af963451988..75a9ea7f968 100644 --- a/src/amd/vulkan/radv_rt_common.c +++ b/src/amd/vulkan/radv_rt_common.c @@ -82,6 +82,9 @@ intersect_ray_amd_software_box(struct radv_device *device, nir_builder *b, nir_s const struct glsl_type *vec4_type = glsl_vector_type(GLSL_TYPE_FLOAT, 4); const struct glsl_type *uvec4_type = glsl_vector_type(GLSL_TYPE_UINT, 4); + bool old_exact = b->exact; + b->exact = true; + nir_ssa_def *node_addr = build_node_to_addr(device, b, bvh_node, false); /* vec4 distances = vec4(INF, INF, INF, INF); */ @@ -165,6 +168,7 @@ intersect_ray_amd_software_box(struct radv_device *device, nir_builder *b, nir_s nir_sort_hit_pair(b, distances, child_indices, 1, 3); nir_sort_hit_pair(b, distances, child_indices, 1, 2); + b->exact = old_exact; return nir_load_var(b, child_indices); } @@ -174,6 +178,9 @@ intersect_ray_amd_software_tri(struct radv_device *device, nir_builder *b, nir_s { const struct glsl_type *vec4_type = glsl_vector_type(GLSL_TYPE_FLOAT, 4); + bool old_exact = b->exact; + b->exact = true; + nir_ssa_def *node_addr = build_node_to_addr(device, b, bvh_node, false); const uint32_t coord_offsets[3] = { @@ -312,6 +319,7 @@ intersect_ray_amd_software_tri(struct radv_device *device, nir_builder *b, nir_s } nir_pop_if(b, NULL); + b->exact = old_exact; return nir_load_var(b, result); }
