How to Identify Apple silicon Metal device

Question

vladimirb OP

Created Jul ’20

Replies 3

Boosts 0

Participants 2

If I do check on Apple silicon this way :

Code Block  BOOL supportMacTextures = [_metalDevice supportsFamily:MTLGPUFamilyMac1];

I will get YES as result.

But as I know A12Z chipset does not support BC1..BC7 textures.

Or it does support them?

Answered by Engineer in 619914022

You should not attempt to detect any specific GPU. Use the Metal device family API to determine what features are supported and code to those features.

Boost

Answer 1

Engineer OP

Apple

Jul ’20

Accepted Answer

You should not attempt to detect any specific GPU. Use the Metal device family API to determine what features are supported and code to those features.

0

Answer 2

vladimirb OP

Jul ’20

Ok. Then probably it's a bug, because I'm getting that BC1..BC7 textures are supported, but they are actually not. Getting black textures comparably to what is on regular Mac.

P.S.: This forum is terrible... I can't edit my question and can't undo ticked answer...

0

Answer 3

vladimirb OP

Jul ’20

Also crash on generateMipmapsForTexture for texture with MTLPixelFormatRGBA32Float format.

I'm using this reference https://developer.apple.com/metal/Metal-Feature-Set-Tables.pdf

0