fix opacity interpolation for composition expressions #8818
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Outdated suggestions cannot be applied.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.
fix #8817
The interpolation factor could be outside of the range 0..1 which could result in rendering errors.
This fix clamps the value to the correct range and adds a regression test cover the fix.
Launch Checklist
@mapbox/gl-native
if this PR includes shader changes or needs a native portI'm not sure if this bug exists in mapbox-gl-native.