CAMetalLayer.nextDrawable() should not be a very time-comsuming method.But sometimes it often takes much time, even more than 8ms Copy the code be ...

I'm trying to draw an MTKMesh. To do this, I will need to set bind vertex buffers before executing the draw call. The documentation for MTKMesh.vertex ...

I'm using MTKView to render some triangles. Everything works fine until I decrease the color's saturation and opacity value which makes the triangle c ...

I'm using a MTKView to display some pixel art, but it shows up blurry. Here is the really weird part: I took a screenshot to show you all what it loo ...

I have a simple CIKernel that tints pixel red: By default, this kernel runs on ever single pixel, returning a red, tinted image. I'd like it to wor ...

my input to frame rendering is three MTLTextures (identical size and type), three different viewports, and three different scissorRects. My vertexShad ...

I’m using Metal with Swift to build a 3D viewer for iOS and I have some issues to make the depth working. From now, I can draw and render a single sha ...

I'm trying to write vertex descriptor for my vertex shader which takes following struct as stage_in input. Now when defining vertex descriptor's at ...

I ran into a strange issue testing Metal cpp. The following project is almost the same as Apple's official Metal Cpp example project. https://github. ...

I'm trying to plot squares using MetalKit. Each square has an origin and a size, like this: The problem is that when MetalKit draws those, each squ ...

I am trying to create a CoreML Custom layer that runs on the GPU, using Objective-C for CoreML setup and Metal for GPU programming. I have created th ...

MetalKit calls drawInMTKView when it wants a your delegate to draw a new frame, but I wonder if it waits for the last drawable to have been presented ...

I wish to render vector shapes (CGPath) using Metal to an offscreen texture. However as I see, it is very difficult to draw thick lines using Metal wh ...

More of a general interest question relating to iOS. I’m interested in image processing and I’m wondering if anyone has any inkling how these apps (sa ...

In Metal we can create samplers like this Then we can sample any texture using this sampler. I am wondering if something similar is available in M ...

A few years ago, Apple started warning anyone using GLKit in their app that OpenGL was going away: warning: OpenGLES is deprecated. Consider migra ...

I am trying to learn metal and since I am already familiar with C++, I am trying to do it using metal-cpp. I am not an experienced MacOS developer but ...

I'm studying app development with swift and metal kit I want to convert an int type array to Metalbuffer, because I have to cover that array data in ...

I have written code to render text to a MTKView, but I have not found a way to modify the color of the text. Has anyone had success with this or can s ...

I have around 50 3D LUTs (stored as png images, each being 900KB in size) and use CIColorCube filter to generate a filtered image. I use UICollectionV ...