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Add downlevel capability for MSAA textures #2117

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Tracked by #3674
kvark opened this issue Oct 26, 2021 · 1 comment
Open
Tracked by #3674

Add downlevel capability for MSAA textures #2117

kvark opened this issue Oct 26, 2021 · 1 comment
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area: api Issues related to API surface help required We need community help to make this happen. type: enhancement New feature or request

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@kvark
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kvark commented Oct 26, 2021

Is your feature request related to a problem? Please describe.
See #2116
In GL backend, we can't create an MSAA-enabled texture if it's not a pure render target.

Describe the solution you'd like
A new downlevel flag to allow that.

Describe alternatives you've considered
none

Additional context
@kvark kvark added type: enhancement New feature or request help required We need community help to make this happen. area: api Issues related to API surface labels Oct 26, 2021
@Wumpf Wumpf mentioned this issue Mar 9, 2023
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@Wumpf Wumpf mentioned this issue Mar 27, 2023
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@cwfitzgerald cwfitzgerald mentioned this issue Apr 12, 2023
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@kpreid kpreid mentioned this issue Feb 18, 2024
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@Wumpf Wumpf mentioned this issue Aug 6, 2024
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@Wumpf
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Wumpf commented Aug 7, 2024

For desktop OpenGL we should be able to support it, but there's a different bug here:
The target for tex_storage_2d_multisample here is never called with the right target - can't seen the code picking anywhere TEXTURE_2D_MULTISAMPLE.

This API is available on OpenGL 4.2 and GLES 3.1 so this should be supported!

Another bug in there probably: We assume all storage apis are available in 3.0, but this one is not according to https://docs.gl/es3/glTexStorage2DMultisample
In any case the downlevel feature is still needed for WebGL then which only has multisampled renderbuffers https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.6

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area: api Issues related to API surface help required We need community help to make this happen. type: enhancement New feature or request
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@kvark @Wumpf