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authorPatrick Mours <pmours@nvidia.com>2020-07-06 13:25:54 +0300
committerPatrick Mours <pmours@nvidia.com>2020-07-07 16:39:02 +0300
commit737bd549b6eeee81f0573ad8e305fb8d888d82ec (patch)
treefc8aaca871557d652287cb3d4f9ee3033ff06e46 /intern/cycles/kernel/bvh
parent95f0f312799e10e4a9f5c884f8f20ec76d0ff363 (diff)
Cycles: Add support for native OptiX curve primitive
This patch adds support for the curve primitive from OptiX to Cycles. It's currently hidden behind a debug option, since there can be some slight rendering differences still (because no backface culling is performed and something seems off with endcaps). The curve primitive was added with the OptiX 7.1 SDK and requires a r450 driver or newer, so this also updates the codebase to be able to build with the new SDK. Reviewed By: brecht Differential Revision: https://developer.blender.org/D8223
Diffstat (limited to 'intern/cycles/kernel/bvh')
-rw-r--r--intern/cycles/kernel/bvh/bvh.h23
1 files changed, 12 insertions, 11 deletions
diff --git a/intern/cycles/kernel/bvh/bvh.h b/intern/cycles/kernel/bvh/bvh.h
index 80b58f46329..3049f243ae9 100644
--- a/intern/cycles/kernel/bvh/bvh.h
+++ b/intern/cycles/kernel/bvh/bvh.h
@@ -172,11 +172,11 @@ ccl_device_intersect bool scene_intersect(KernelGlobals *kg,
0.0f,
ray->t,
ray->time,
- 0xFF,
+ 0xF,
OPTIX_RAY_FLAG_NONE,
+ 0, // SBT offset for PG_HITD
0,
0,
- 0, // SBT offset for PG_HITD
p0,
p1,
p2,
@@ -264,12 +264,13 @@ ccl_device_intersect bool scene_intersect_local(KernelGlobals *kg,
0.0f,
ray->t,
ray->time,
+ // Skip curves
+ 0x3,
// Need to always call into __anyhit__kernel_optix_local_hit
- 0xFF,
OPTIX_RAY_FLAG_ENFORCE_ANYHIT,
- 1,
+ 2, // SBT offset for PG_HITL
+ 0,
0,
- 0, // SBT offset for PG_HITL
p0,
p1,
p2,
@@ -374,12 +375,12 @@ ccl_device_intersect bool scene_intersect_shadow_all(KernelGlobals *kg,
0.0f,
ray->t,
ray->time,
+ 0xF,
// Need to always call into __anyhit__kernel_optix_shadow_all_hit
- 0xFF,
OPTIX_RAY_FLAG_ENFORCE_ANYHIT,
- 2,
+ 1, // SBT offset for PG_HITS
+ 0,
0,
- 0, // SBT offset for PG_HITS
p0,
p1,
*num_hits,
@@ -458,12 +459,12 @@ ccl_device_intersect bool scene_intersect_volume(KernelGlobals *kg,
0.0f,
ray->t,
ray->time,
- // Visibility mask set to only intersect objects with volumes
- 0x02,
+ // Skip everything but volumes
+ 0x2,
OPTIX_RAY_FLAG_NONE,
+ 0, // SBT offset for PG_HITD
0,
0,
- 0, // SBT offset for PG_HITD
p0,
p1,
p2,