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Warp & Blend General discussion area for Warp & Blend MDL SDK General discussion area for Material Definition Languages and the NVIDIA MDL SDK vMaterials General discussion area for vMaterials Mosaic General discussion area for Mosaic. OptiX General discussion area for OptiX

Topic	Replies	Views	Activity
Stack size calculation for ProgramGroups (RG, EX, MS, HG) with optixUtilAccumulateStackSizes OptiX cuda , optix	8	37	February 6, 2026
BVH updates slow on RTX 4090 + PRO 6000 Blackwell OptiX	7	36	February 4, 2026
Optix compile error OptiX optix	1	24	February 4, 2026
Proper way of batching multiple GAS builds OptiX	7	49	February 4, 2026
Timing Server Configuration Failure with Genlock on RTX PRO Sync (FW v3.04+) Mosaic	1	28	February 2, 2026
OptiX sample for real-time animated subdivision surfaces + DLSS-RR OptiX cuda , dlss , optix , rtx We want to direct your attention to a new code sample on GitHub for real-time animated subdivision surfaces using OptiX and CUDA: There is also a corresponding tech blog article. This sample uses the Cluster API avai…	9	449	January 30, 2026
Proper Cleanup of OptixDeviceContext OptiX	3	32	January 29, 2026
What is the performance of the RTX 4090 measured in gigarays? OptiX	3	51	January 27, 2026
Optix sdk8 sample optixMeshViewer NOT displaying color OptiX	4	22	January 26, 2026
Optix sdk8 sample optixHair NOT displaying color OptiX	0	12	January 25, 2026
Inconsistent behavior of rcp(0) in double precision OptiX	2	35	January 23, 2026
Segmentation fault during optixModuleCreate OptiX curand	8	57	January 31, 2026
AABB counterpart of optixGetTriangleVertexData OptiX	1	29	January 16, 2026
OptiX 9.1 Release OptiX software-release , optix OptiX 9.1 has been released! NOTE: support for OptiX 6 based applications has been removed from the driver as of R590. You can continue to use OptiX 6 by using the R580 driver or earlier. Here are the main highlights f…	2	336	January 13, 2026
How is Optix denoiser comparing NRD and DLSS? Which one is best for offline and semi-realtime denoise? OptiX	3	78	January 13, 2026
Is there any room for optimization in the idle time after calling optixTraverse? OptiX	3	30	January 13, 2026
How is the performance of the huge amount of rays in this small scene? OptiX cuda , optix	5	53	January 10, 2026
OptiX™ 6.X Download OptiX	2	56	January 8, 2026
Driver 591.44: some programs run incorrectly with debuggable PTX/Optix-IR OptiX	11	206	January 5, 2026
OptiX 6.0.0 is broken on driver 591.44 OptiX optix	25	1834	January 5, 2026
Announcement: MDL SDK 2025.0.3 released MDL SDK Get the update on GitHub - NVIDIA/MDL-SDK: NVIDIA Material Definition Language SDK. MDL SDK 2025.0.3 (387700.2665): 10 Dec 2025 Added and Changed Features General Improved database garbage collection such that tra…	1	19	January 5, 2026
How to use OpenMP in the Optix program？ OptiX optix	3	29	January 10, 2026
Suggest new materials to add to vMaterials 2 library vMaterials material We are continuously expanding our vMaterials catalog. We are adding content in all of the available categories, one at a time. If you are missing a certain material from the our catalog, here is the place to ask for it t…	5	1449	December 26, 2025
Using CUDA texture APIs with OptiX and the legacy CUDA programming guide OptiX	2	79	December 15, 2025
Optix-IR seems to fail for me with vector types (Updated with reproduction) OptiX	7	160	December 23, 2025
NVIDIA Mosaic cannot be configured as 24Hz but 23.976 Mosaic	2	64	December 3, 2025
Assigning PhysicsMaterials to the assembly part of a prim vMaterials isaac-sim-v5-0-0	0	19	December 2, 2025
Optix SDK optixNeuralTexture No Texture Rendering OptiX optix	7	127	November 25, 2025
OptiX 9.0.0 samples failing to build with CUDA 12.8 (Windows 11) OptiX	11	126	November 21, 2025
Missing materials in Data Center asset pack vMaterials asset , material	0	32	November 18, 2025