* HDRP: Add support of light layering for forward (first draft)
TODO:
- Test instancing
- Check perf
- add an option to disable light layer support + in frameSettings
- add deferred rendering support (mean add an optional extra GBuffer)
* Add LightLinking support (version 1 - compile)
This PR add support of LightLayers feature.
To use it, setup mask renderingLayers on renderers and LightLayers on a lights. If a logical and of both give a non 0 value, the light is apply, otherwise it isn't.
This mean that by default LightLayers is 1 and RenderingLayers is 1. Then user can say LightLayers is only 2 and it will only affect renderingLayers with 2 or 3 mask value.
LightLayers require an extra GBuffer in deferred, mean it have extra bandwidth and memory cost.
LightLayers once enabled in HDRPAsset with SupportLightLayers can be control by FrameSettings. Mean a camera can enable extra RT only for an in game cinematic.
This PR refactor...
- Shader code change: Rename GetBakedDiffuseLighting to ModifyBakedDiffuseLighting. This function now handle lighting model for transmission too. Lux meter debug mode is factor outisde.
- Shader code change: GetBakedDiffuseLighting is not call anymore in GBuffer or forward pass, including the ConvertSurfaceDataToBSDFData and GetPreLightData, this is done in ModifyBakedDiffuseLighting now
- Shader code change: Added a backBakeDiffuseLighting to BuiltinData to handle lighting for transmission
- Shader code change: Material must now call InitBuiltinData (Init all to zero + init bakeDiffuseLighting and backBakeDiffuseLighting ) and PostInitBuiltinData
- Update shader graph associate code
* Converting template parser to a class to enable recursive $include in the near future
* New template parser working with $include, $splice
Including dependency tracking on $include
* Adding $buildType template command, and cleaning up the code around that.
* Bump major version number. Using ShaderStringBuilder.
* Don't build slot list twice
* Fix view space position for FB case 1064118
* Refactor GraphFunctions includes to per-pipeline
* Add Scene Color node
- And camera opaque requirements
- Returns 0s in HD
* Add Scene Depth node
* Rename GraphFunctions.hlsl > ShaderGraphFunctions.hlsl
* Update references to ShaderGraphFunctions.hlsl
Tim Cooper
Keijiro Takahashi
Peter Bay Bastian
Matt Dean
Chris Tchou
sebastienlagarde
Sebastien Lagarde
GitHub