I'm making an app for MacOs, but I'm having problems with the antialiasing implementation in Metal. When compiling I get the following error: validateAttachmentOnDevice:540: failed assertion MTLRenderPassDescriptor render targets have inconsistent sample counts.' This is the code I use to implement the textures: - (void)makeTextures {     if ([depthTexture width] != drawableSize.width || [depthTexture height] != drawableSize.height)     {         MTLTextureDescriptor *colorDescriptor = [MTLTextureDescriptor new];         colorDescriptor.textureType = MTLTextureType2DMultisample;         colorDescriptor.sampleCount = 4;         colorDescriptor.pixelFormat = vista.colorPixelFormat;         colorDescriptor.width = drawableSize.width;         colorDescriptor.height = drawableSize.height;         colorDescriptor.usage = MTLTextureUsageRenderTarget;         colorDescriptor.storageMode = MTLStorageModePrivate;         msaaColorTexture = [view.device newTextureWithDescriptor:colorDescriptor];         MTLTextureDescriptor *resolveDescriptor = [MTLTextureDescriptor new];         resolveDescriptor.textureType = MTLTextureType2D;         resolveDescriptor.pixelFormat = vista.colorPixelFormat;         resolveDescriptor.width = drawableSize.width;         resolveDescriptor.height = drawableSize.height;         resolveDescriptor.storageMode = MTLStorageModePrivate;         msaaResolveColorTexture = [view.device newTextureWithDescriptor:resolveDescriptor];         MTLTextureDescriptor *desc = [MTLTextureDescriptor new];         desc.textureType = MTLTextureType2DMultisample;         desc.sampleCount = 4;         desc.pixelFormat = MTLPixelFormatDepth32Float;         desc.width = drawableSize.width;         desc.height = drawableSize.height;         desc.usage = MTLTextureUsageRenderTarget;         desc.storageMode = MTLStorageModePrivate;         depthTexture = [view.device newTextureWithDescriptor:desc];     } } If at the time of creating the MTLRenderPipelineDescriptor I add .samplecount = 4;, the error disappears, but nothing is drawing in the view. This are de PipelineDescriptor creation: MTLRenderPipelineDescriptor *pipelineStateDescriptor = [MTLRenderPipelineDescriptor new];     pipelineStateDescriptor.label = @"Simple Pipeline";     pipelineStateDescriptor.vertexFunction = vertexFunction;     pipelineStateDescriptor.fragmentFunction = fragmentFunction;     pipelineStateDescriptor.colorAttachments[0].pixelFormat = vista.colorPixelFormat;     pipelineStateDescriptor.depthAttachmentPixelFormat = MTLPixelFormatDepth32Float; // No error but black view.     //pipelineStateDescriptor.sampleCount = 4;     NSError *error;     pipelineState = [view.device newRenderPipelineStateWithDescriptor:pipelineStateDescriptor error:&error];     // Depth stencil.     MTLDepthStencilDescriptor *depthStencilDescriptor = [MTLDepthStencilDescriptor new];     depthStencilDescriptor.depthCompareFunction = MTLCompareFunctionLess;     depthStencilDescriptor.depthWriteEnabled = YES;     depthStencilState = [view.device newDepthStencilStateWithDescriptor:depthStencilDescriptor]; And passDescriptor: if (passDescriptor != nil) {         passDescriptor.colorAttachments[0].texture = msaaColorTexture;         passDescriptor.colorAttachments[0].resolveTexture = msaaResolveColorTexture;         passDescriptor.colorAttachments[0].clearColor = MTLClearColorMake(1.0f, 1.0f, 1.0f, 1.0f);         passDescriptor.colorAttachments[0].storeAction = MTLStoreActionMultisampleResolve;         passDescriptor.colorAttachments[0].loadAction = MTLLoadActionClear;         passDescriptor.depthAttachment.texture = depthTexture;         passDescriptor.depthAttachment.clearDepth = 1.0;         passDescriptor.depthAttachment.loadAction = MTLLoadActionClear;         passDescriptor.depthAttachment.storeAction = MTLStoreActionStore; . . . Any suggestion. Thanks by advice. Manuel C.