Bug 252359
| Summary: | iOS Safari incorrectly reports supporting OES_texture_float_linear | ||
|---|---|---|---|
| Product: | WebKit | Reporter: | Gregg Tavares <gman> |
| Component: | WebGL | Assignee: | Nobody <webkit-unassigned> |
| Status: | RESOLVED FIXED | ||
| Severity: | Normal | CC: | dino, kbr, kkinnunen, roberto.ranon, webkit-bug-importer |
| Priority: | P2 | Keywords: | InRadar |
| Version: | WebKit Nightly Build | ||
| Hardware: | iPhone / iPad | ||
| OS: | iOS 16 | ||
| Bug Depends on: | 254064 | ||
| Bug Blocks: | |||
Gregg Tavares
On my iPhone 13 Pro running iOS 16.3.1, iOS Safari incorrectly reports supporting OES_texture_float_linear
see https://webgplreport.com
notice: OES_texture_float_linear shows up as a supported extension
Then, go to: https://jsgist.org/?src=94615d573985d60b76314bd4857f6410
First try desktop: See the texture is filtered (the texture is an RGBA32 texture)
Now go the same url on iPhone, See the texture is not filtered
Note: The conformance test for oes_texture_float_linear passes on iOS but looking into the source it never actually checks if results are actually filtered.
https://registry.khronos.org/webgl/sdk/tests/conformance/extensions/oes-texture-float-linear.html?webglVersion=2&quiet=0&quick=1
| Attachments | ||
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| Add attachment proposed patch, testcase, etc. |
Kimmo Kinnunen
Thanks for the report!
Yes, I think the issue is that the iOS hardware does not support RGBA32Float filterability. We need to update the ANGLE texture format tables..
Kimmo Kinnunen
https://bugs.chromium.org/p/angleproject/issues/detail?id=8028
https://chromium-review.googlesource.com/c/angle/angle/+/4266915
Radar WebKit Bug Importer
<rdar://problem/105803356>
Kimmo Kinnunen
Fixed in bug 254064
Kimmo Kinnunen
*** Bug 264404 has been marked as a duplicate of this bug. ***