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OptiX testrender overhaul #1829

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OptiX testrender overhaul #1829

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Commits on Jun 10, 2024

  1. Crudely refactor make_optix_materials.

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  2. Continue refactoring the OptiX pipeline setup.

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  3. Tweaks to allow including shadding.h/shading.cpp in wrapper.cu.

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  4. FIX: Use the correct OptiX call to retrieve t_hit.

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  5. Basic pathtracing working on the GPU.

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  6. Add PDF calculation for self-emission.

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  7. Make the sampling match the CPU path more closely.

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  8. Add some vector casting macros.

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  9. Trace light rays to both quad and sphere prims.

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  10. Separate out subpixel_radiance function to make anti-aliasing easier.

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  11. Enable anti-aliasing.

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  12. Enable show_albedo_scale. Misc. cleanup.

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  13. Add "precise" versions of the quad and sphere intersection programs t… 

    …hat use the higher-precision intrinsics.
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  14. Don't create hitgroups for geometry types that aren't present in the … 

    …scene.
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  15. Tweak the UV calculation for the sphere.

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  16. More BDSFs sort of working (Ward yes, Phong no).

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  17. Make the surface area computation for the GPU sphere match the CPU.

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  18. Record the backfacing property for quad hits.

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  19. Rework the light ray tracing a bit.

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  20. Pass max bounces through the render params.

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  21. Add cases from FRESNEL_REFLECTION_ID.

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  22. FIX: Adjust the size needed calculation in closure_component_allot.

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  23. Use the correct case labels for REFRACTION_ID. Use the correct get_al… 

    …bedo functions for the BSDF sub-types.
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  24. Changes to make sphere refraction work. Pass in the last hit ID to al… 

    …low the self-intersection test.
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  25. No need to redefine the OSL_HOSTDEVICE macro.

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  26. Hack in the dPdx/dPdy calculation, to allow things like calculatenorm… 

    …al to work.
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  27. Add basic support for the Microfacet BSDF.

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  28. Add initial support for Background sampling on the GPU. Add support f… 

    …or CUDA mipmapped textures in testrender. Update the signature of osl_tex2DLookup in testshade.
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  29. Change license notice for upper_bound.

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  30. Use the full-precision intrinsics for some calculations in Background.

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  31. Don't attempt to prepare the background or evaluate it if it doesn't … 

    …exist.
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  32. Use a full-precision divide when normalizing the PDF.

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  33. Partially parallelize Background::prepare().

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  34. Cleanup background.h a little.

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  35. Make Background::prepare_gpu() work with dimensions that aren't a mul… 

    …tiple of 32.
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  36. Cleanup background.h a bit.

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  37. Shuffle some of the CUDA code around in shading.cpp.

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  38. HACK: Put RenderParams in a namespace for testshade.

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  39. HACK: Make OSL_DASSERT a no-op when targeting CUDA.

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  40. Enforce a minimum background resolution of 32x32.

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  41. Add partial support for MaterialX closures.

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  42. Add a new file shading_cuda.cpp to hold the CUDA-specific functions. … 

    …It's not a stand-alone file, it needs to be included along with shading.cpp in the target CUDA source file.
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  43. process_medium_closure is mostly working.

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  44. Clean up the closure process functions a little.

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  45. Layered BSDFs partially working.

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  46. Reshuffle and refactor some code.

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  47. Support different microfacet distributions (GGX, Beckmann).

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  48. Fix evaluate_layer_opacity.

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  49. Remove the hitpoint offset stuff.

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  50. Cleanup.

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  51. Fixup some rebase snafus in optix_grid_renderer.cu.

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  52. Fixup some string stuff after the rebase.

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  53. Add some templated get_albedo/sample/eval functions to help streamlin… 

    …e calls.
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  54. Plumb through support for TRANSPARENT_ID. Untested.

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  55. Destroy the shading system before destroying the renderer.

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  56. Add an option to disable AA pixel jitter.

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  57. Disable the unsupported string ops in testoptix.

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  58. fixup. Add OSL_HOSTDEVICE to BSDF::BSDF().

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  59. Add missing break statement in MX_GENERALIZED_SCHLICK_ID case.

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  60. Manually construct the BSDFs in evaluate_layer_opacity.

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  61. Refactor manual BSDF "construction" a bit.

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  62. Adjust the test cases so that they work with the updated testrender.

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  63. Get rid of the _gpu versions of prepare/eval/sample/get_albedo.

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  64. Strip out the old raygen and unused occlusion programs. 

    This reverts commit ae9a17e4dba747034c9a5b9da0a9c4c6be87d7b5.
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  65. Plumb through support for TRANSLUCENT_ID. Untested.

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  66. Disable some asserts in CompositeBSDF::prepare() on the CUDA path.

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  67. Use mipmaps in testshade.

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  68. Tweak texture creation, and unify the implementations between testren… 

    …der and testshade.
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  69. Update the reference images for test_spline and test_texture, since t… 

    …he output is different with the mipmapped textures.
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  70. Remove unused code from sphere.cu.

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  71. Add the self check to quads, and tweak the check slightly for spheres.

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  72. Get rid of the "precise" intersection programs.

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  73. Streamline the Payload type a bit. Assorted cleanup and refactoring.

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  74. Fix some compile issues with testshade.

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  75. Update the reference images for testoptix-noise

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  76. Simplify the guard around the OSL_DASSERT definition, and add a note … 

    …about why it's being disabled for CUDA.
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  77. Use the pointer type instead of uint64_t in the Payload struct. Get r… 

    …ed of the unused make_color function.
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  78. Add a note about the provenance of the Sphere/Quad sample functions.

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  79. Get rid of the sizeof_params lambda.

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  80. Rename the *_gpu functions *_cuda.

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  81. Move a bunch of functions from shading_cuda.cpp to optix_raytracer.cu.

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  82. Use the right cast macro for a couple vector type conversions.

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  83. Factor out a trace_ray function.

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  84. Use the normal BSDF constructors in add_bsdf_cuda.

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  85. Eliminate add_bsdf_cuda.

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  86. Add default CUDA implementations for BSDF::eval and BSDF::sample.

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  87. Use a regular divide in the PDF calculation in CompositeBSDF::prepare().

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  88. Expand the comments about add_bsdf and get_albedo/sample/eval.

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  89. Add common get_albedo, eval, and sample functions to CompositeBSDF.

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  90. Get rid of the albedo/sample/eval helper functions.

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  91. Get rid of the add_bsdf CUDA wrapper.

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  92. Use regular stack objects instead of placement new for the BSDFs in e… 

    …valuate_layer_opacity.
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  93. Add back energy_compensation field that was lost in the shuffle.

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Commits on Jun 13, 2024

  1. Use a unified version of SimpleRaytracer::subpixel_radiance, instead … 

    …of using separate versions for CPU and CUDA.

 * Use Vec3 instead of float3 in ShaderGlobals, to avoid annoying special cases when targeting CUDA.
 * Use the Camera class for ray generation.
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  2. Drop the library-style leading underscore names in upper_bound_cuda.

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Commits on Jun 17, 2024

  1. Make process_medium_closure iterative.

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  2. Make evaluate_layer_opacity iterative.

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  3. Make process_bsdf_closure iterative.

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  4. Make process_background_closure iterative.

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  5. Make the CUDA path use the host closure evaluation functions.

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  6. "Fix" the closure id in the MX_CONDUCTOR_ID case in process_bsdf_clos… 

    …ure.
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  7. Get rid of the closure evaluation code in optix_raytracer.cu.

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  8. Switch the host path to basic ID-based dispatch.

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    tgrant-nv committed Jun 17, 2024
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Commits on Jun 19, 2024

  1. Simplify 'tracedata' handling by using explicit object IDs. Encapsula… 

    …te the tracedata into a TraceData type.
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    tgrant-nv committed Jun 19, 2024
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Commits on Jun 20, 2024

  1. Tuck TraceData into CudaScene::intersect.

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    tgrant-nv committed Jun 20, 2024
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  2. Share SimpleRaytracer::eval_background between host and CUDA.

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    tgrant-nv committed Jun 20, 2024
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Commits on Jul 16, 2024

  1. Get rid of the vestigial virtual function calls.

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    tgrant-nv committed Jul 16, 2024
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Commits on Jul 17, 2024

  1. Use the Sphere and Quad intersect functions on the GPU.

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    tgrant-nv committed Jul 17, 2024
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  2. Use the Sphere and Quad uv functions on the GPU.

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    tgrant-nv committed Jul 17, 2024
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  3. Use the Sphere and Quad sample and shapepdf functions on the GPU.

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    tgrant-nv committed Jul 17, 2024
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