metal

问题 I am using this code to render the "Hello Triangle" triangle. On my iPhone, though, the triangle has very rough edges, not smooth edges, like in the example. import UIKit import Metal import MetalKit import simd class MBEMetalView: UIView { // // // // // MAIN // // // // // var metalDevice: MTLDevice! = nil var metalLayer: CAMetalLayer! = nil var commandQueue: MTLCommandQueue! = nil var vertexBuffer: MTLBuffer! = nil var pipelineState: MTLRenderPipelineState! = nil var displayLink:

问题 I'm looking for a most efficient way of drawing a 2-dimensional background in metal. This requires rendering a textured rectangle. The basic geometry example shows an example on how to draw a triangle. Is there an easy and non-bloated way to draw a rectangle (a polygon with 4 corners)? 回答1: The Basic Texturing sample draws a textured rectangle 来源： https://stackoverflow.com/questions/52515513/how-to-draw-a-textured-rectangle-with-metal

问题 I've been trying to set up a addPresentedHandler for some time now, but without luck. I've got a addCompletedHandler working on the command buffers that contain the rendering work to be executed every frame. I've verified that the addCompletedHandler is working by seeing setting breakpoints within the code block. These are triggered when running the app. For the addPresentedHandler however, no breakpoint within the code block is triggered (I've also verified through modifying variables from

问题 I am rendering a 3D Obj model in iOS. http://metalbyexample.com/picking-hit-testing/. I am following the above Tutorial written by WM to find the hit point in the 3D model. Using the above link I can find the intersecting point with 3D model. I want to find the triangular polygon where I touched and I want to find the UV coordinates in the Image texture. How can I do that.. 来源： https://stackoverflow.com/questions/56832882/get-the-triangular-polygon-where-the-ray-point-intersected

问题 I have kernel func which must convert Y and CbCr textures created from pixelBuffer(ARFrame.capturedImage) to RGB texture like in apple guide https://developer.apple.com/documentation/arkit/displaying_an_ar_experience_with_metal But I get over lighted texture kernel void renderTexture(texture2d<float, access::sample> capturedImageTextureY [[ texture(0) ]], texture2d<float, access::sample> capturedImageTextureCbCr [[ texture(1) ]], texture2d<float, access::read_write> outTextue [[texture(2)]],

问题 I'm new to Metal. I'm rendering a SceneKit scene with Metal using this Apple sample code. TLDR; it calls the SCNRenderer's render function and passes in a command buffer. I'm compiling for Big Sur. It works, but it is not anti-aliased. I've tried a few ways to achieve it, as you can see in the updates below. Without Metal, I'd just set isJitteringEnabled to true on the SCNRenderer, and I get beautiful (and slow) 96-ish-pass renderings. If I try to do this with Metal, I get weird pixel format

来源： https://stackoverflow.com/questions/64382919/macos-vulkan-at-runtime-vkcreatedevice-fails-when-vkphysicaldevicefeatures-w

来源： https://stackoverflow.com/questions/63793918/lidar-and-realitykit-capture-a-real-world-texture-for-a-scanned-model

来源： https://stackoverflow.com/questions/63793918/lidar-and-realitykit-capture-a-real-world-texture-for-a-scanned-model

来源： https://stackoverflow.com/questions/63793918/lidar-and-realitykit-capture-a-real-world-texture-for-a-scanned-model