RFR: 8373232: Set default filters and addressing modes for 3D metal textures [v2]

[Lukasz Kostyra]

On Tue, 16 Dec 2025 11:49:31 GMT, Jayathirth D V <jdv at openjdk.org> wrote:

>> Currently we don't set any texture filtering & addressing modes for 3D textures in Metal pipeline.
>> Default 3D texture filtering is "nearest" for Metal textures, but we use "linear" filtering by default for 3D textures in case of OpenGL.
>> Default addressing mode is "clamp_to_edge" in Metal textures, but we use "repeat" addressing mode for 3D textures in OpenGL.
>> 
>> Metal should use same default filtering & addressing modes for 3D textures as in OpenGL pipeline.
>> Under this issue we are trying only to match defaults of Metal to OpenGL pipeline.
>> 
>> We don't update the filters/addressing modes for 3D textures once created.
>> We have open enhancements like https://bugs.openjdk.org/browse/JDK-8324594 where we might provide API's to set sampler states for 3D textures in future.
>> 
>> Functional and performance testing is green with this update.
>
> Jayathirth D V has updated the pull request incrementally with one additional commit since the last revision:
> 
>   create sampler states only once

I just noticed the ready label, but I think this requires two reviewers.

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PR Comment: https://git.openjdk.org/jfx/pull/2005#issuecomment-3661340383