- Coverage over the background can be override from the root node when AlphaCompiste blend mode is selected. If not plugged in, coverage of over brackground is off and regular blending is used.
- Decals only support translucent, composite and modulate. Normal is ignored when using CompositeAlpha (seen somewhere)
- Light functions can only be opaque so nothing to do in this case.
- UI domain tested with all blend mode
- Material attribute aslo tested
- Fixed many of issues with blend mode defines, being forced, etc.
#rb soon charles.derousiers
#preflight https://horde.devtools.epicgames.com/job/64426db6641e2c3cb4fc7966
#fyi charles.derousiers
[CL 25143802 by Sebastien Hillaire in ue5-main branch]
* Add adaptive RT material payload for Strata.
* Centralize all Strata settings in RenderCore/RenderUtils.h to ensure consistency
#rb chris.kulla
#jira none
#preflight 63d43bcff626715201a0ed1d
[FYI] sebastien.hillaire
[CL 23923301 by charles derousiers in ue5-main branch]
Only mildly functional currently, my goal here is to get feedback on the high level direction. The new code is disabled by default; it needs to be opted-into per material (and the UI for that is hidden by default behind a CVAR), so it shouldn't affect any existing workflows.
Basic outline:
* UMaterialExpression::Compile is replaced by GenerateHLSLStatement/GenerateHLSLExpression
* GenerateHLSLExpression returns a HLSLTree::FExpression derived object. This is broadly similar to FShaderCodeChunk, except FExpression stores pointers to dependent expressions, and only generates the final HLSL string on demand (EmitHLSL method). FExpression will have many derived classes to represent various HLSL expresisons like Add, Parameter, Constant, etc.
* GenerateHLSLStatement returns a HLSLTree::FStatement. Statements represent chunk of HLSL code rather than a value. 'if(...)' is a statement for example.
* UMaterialExpression will normally override only 1 of GenerateHLSLStatement/GenerateHLSLExpression, although both are possible (for loop may override both, since the for loop index is an expression for example)
* FMaterialHLSLGenerator is the 'context' object passed to GenerateHLSLStatement/GenerateHLSLExpression. This is kind of like FHLSLMaterialTranslator. It's responsible for tracking which scope statements/expressions belong to (this can evolve as a given expression/statement is accessed from multiple UMaterialExpressions)
* HLSLTree.h contains the implementation of Expression and FStatement. I feel like it's possible this could be useful outside of the material system (for example could be shared with Niagara). Will be tricky to partition/organize the code in such a way to make this work though.
* HLSLTreeCommon.h contains derived expression/statement types. The intent is to support plugins that define additional derived types.
* MaterialExpressionHLSL.cpp contains the implementations of GenerateHLSLStatement/GenerateHLSLExpression I've added so far. Eventually all expression types will need to be converted over (this will be a big job). Once the new system is done, we can remove all the old Compile() functions in MaterialExpressions.cpp
* I haven't given any real thought to Strata or analytic derivatives yet, but I don't forsee any serious problem adapting them to this new system
#jira none
#rb arciel.rekman, sebastien.hillaire, rune.stubbe
[CL 15536071 by Ben Ingram in ue5-main branch]
- Very WIP, not intended/ready for production use
- Hidden behind CVAR to enable support, and per-material flag to opt in
#jira none
#rb rune.stubbe
[CL 15251606 by Ben Ingram in ue5-main branch]
Add composite & pinbase expressions / nodes, which use reroutes under the hood to ensure zero material overhead.
Convert MaterialEditor to a WorkflowCentricApplication.
Generally add subgraph existence support to MaterialGraph / MaterialEditor.
#jira UE-96104
#rb Ben.Ingram Lauren.Barnes
#fyi Lauren.Barnes
[CL 14437968 by daren cheng in ue5-main branch]
#jira UE-90350
[FYI] Lauren.Barnes
#ROBOMERGE-SOURCE: CL 12117712 via CL 12117723 via CL 12128129
#ROBOMERGE-BOT: (v659-12123632)
[CL 12128284 by nick darnell in Main branch]
#rnx
#rb none
#ROBOMERGE-SOURCE: CL 10869241 via CL 10869527 via CL 10869904
#ROBOMERGE-BOT: (v613-10869866)
[CL 10870586 by ryan durand in Main branch]
Added a debug string field to display all the shading models in a material in UMaterial, this is displayed only when "From Material Expression" is the selected shading model on the material.
#rb none
#rnx
#ROBOMERGE-SOURCE: CL 6604268 via CL 6604783
#ROBOMERGE-BOT: (v351-6581450)
[CL 6604810 by kevin ortegren in Main branch]
