unity3d-jp / raytracedhardshadow Goto Github PK

it would be great if you could pass unity's buffers like: "normal, albedo,..." in the shader "rthsShadowDXR.hlsl"

adaptive sampling is a classic optimization method for raytracing & raymarching, yet it will be effective especially in our case (because the entropy of result image is almost always very low).

if someone needs it.

SkinnedMeshRenderer.BakeMesh() always do skinning & blendshape on CPU. that means, very slow. if we can do it on GPU on plugin side, it will be a huge performance boost.
(but Cloth is no way other than BakeMesh())

if someone needs it.

use UIElements on Unity 2019.1 or newer.

Hello! Sorry to add an issue to an old package, but this is really wonderful work. We were wondering if there we plans to support other platforms - OSX (metal) or mobile?
Thanks!

not required right now, but possibly needed near future.
shoot multiple rays near edges and average results?

not required right now, but possibly needed near future. also, stencil and transparency should be considered.

if someone needs it.

• add an option to select objects for shadow caster/receiver independently
• hit mask layer
• object space skinning
  • see "Animation" in http://intro-to-dxr.cwyman.org/presentations/IntroDXR_RaytracingAPI.pdf
• handle drag & dropped scenes from Hierarchy
• export to image functionality
• debug functionality: timestamp
• debug functionality: 'always update acceleration structures' mode
• multiple command lists for deform & building BLAS (for potential parallelization)
  • the performance gain was negligible or even negative. probably it will be better if do it with optimal task granularity in a complex scene. we need to test with real-world assets.
  • https://developer.nvidia.com/dx12-dos-and-donts
• use global root signature instead of local root signature
  • GPU based validation was the source of annoyance
• flip caster mesh faces option
• ID3D12Device::SetStablePowerState()
• handle dynamic Meshes
  • Alembic meshes, etc
• faster BLAS update for baked meshes
  • for Cloth
• use Lights' culling mask
• use Cameras' culling mask
• use MeshRenderer's shadow mode
• use Lights' shadow settings
• set light index to light alpha
• bit mask output option
• use CommandBuffers for precise draw order
  • actually not needed
• (unity) global shader parameter to detect RTHS is used
• normalize light intensity
• debug view for adaptive sampling
• optimal shadow ray offset
  • see "A Fast and Robust Method for Avoiding Self-Intersection" in http://www.realtimerendering.com/raytracinggems/unofficial_RayTracingGems_v1.5.pdf