vulkan: Explicitly enable dualSrcBlend feature to fix rendering artifacts#294
Merged
kvark merged 1 commit intokvark:mainfrom Feb 3, 2026
Merged
Conversation
In blade-graphics/src/vulkan/init.rs the code checks for dual_src_blend support but fails to set dual_src_blend: vk::TRUE in vk::PhysicalDeviceFeatures when creating the device.
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
2 participants
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Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be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.
Summary
This PR fixes a Vulkan validation error and severe visual artifacts (green mosaic on AMD/RADV) caused by using dual-source blending without explicitly enabling the feature on the logical device.
The Fix
I updated blade-graphics/src/vulkan/init.rs to explicitly enable the dual_src_blend feature in vk::PhysicalDeviceFeatures if the physical device supports it.
Linked Issue
Addresses part of zed-industries/zed#47650