DRHT > error > MTLTextureDescriptor

Question

my code：

guard let drawable = view.currentDrawable else { return }
    let renderPassDescriptor = MTLRenderPassDescriptor()
    renderPassDescriptor.colorAttachments[0].texture = drawable.texture //There is a crash
    renderPassDescriptor.colorAttachments[0].loadAction = .clear
    renderPassDescriptor.colorAttachments[0].clearColor = MTLClearColor(red: 0, green: 0, blue: 0, alpha: 0)

error info：

MTLTextureDescriptor has height (9964) greater than the maximum allowed size of 8192. > validateTextureDimensions > validateTextureDimensions:1075: failed assertion `MTLTextureDescriptor has height (9964) greater than the maximum allowed size of 8192.'

please help：

I try to put a canvas on an image，as you can see，the size of this canvas is too large to exceed the GPU processing limit。Is there a better way that don't change size to solve this problem

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Posted by

kukukukuku

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Answer 1

Look for "Maximum 2D texture width and height" in https://developer.apple.com/metal/Metal-Feature-Set-Tables.pdf

You can check the GPUFamily through MTLDevice API.

As for how to workaround this limitation, I guess you only have two choices:

use a smaller texture size
use several textures and display them next to each other like tiles

Posted by

Ceylo

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Answer 2

So far, I only found it on the iPad mini 2

Posted by

kukukukuku

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Answer 3

Look for "Maximum 2D texture width and height" in https://developer.apple.com/metal/Metal-Feature-Set-Tables.pdf

You can check the GPUFamily through MTLDevice API.

As for how to workaround this limitation, I guess you only have two choices:

use a smaller texture size
use several textures and display them next to each other like tiles

Posted by

Ceylo

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DRHT > error > MTLTextureDescriptor

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