SV_PrimitiveID emulation by provoking vertex#1237
Merged
turanszkij merged 2 commits intomasterfrom Oct 7, 2025
Merged
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
The SV_PrimitiveID is no longer used as PS input, instead two additional index buffers are used for indirection. The "provoke" contains primitiveIDs for every provoking vertex. The "reorder" contains the vertexID remapping from "provoke". On PS5 this removes the need to do additional geometry shader fallback for prepass rendering. It will be also helpful for MacOS port that doesn't support SV_PrimitiveID or geometry shader (PR: #1230 )