void Render()
{
// Create a new command buffer for each renderpass to the current drawable.
IMTLCommandBuffer commandBuffer = commandQueue.CommandBuffer();
// Initialize MetalPerformanceShaders gaussianBlur with Sigma = 10.0f.
var gaussianblur = new MPSImageGaussianBlur(metalView.Device, 10f);
var drawable = ((CAMetalLayer)metalView.Layer).NextDrawable();
// Run MetalPerformanceShader gaussianblur.
gaussianblur.EncodeToCommandBuffer(commandBuffer, sourceTexture, drawable.Texture);
// Schedule a present using the current drawable.
commandBuffer.PresentDrawable(drawable);
// Finalize command buffer.
commandBuffer.Commit();
commandBuffer.WaitUntilCompleted();
// To reuse a CAMetalDrawable object’s texture, you must deallocate the drawable after presenting it.
drawable.Dispose();
}