Dear experts, I'm working on adding UI for my cpp based path tracer renderer. I want to create metal cpp device and pass it to renderer, but also I want to use ImGui and GLFW (for window manager and input events handling). I've found solution how I can mix obj c code that requires by GLFW window setup and cpp code: https://github.com/ikryukov/MetalCppImGui // Here is key thing for integration GLFW with Metal Cpp // GLFW supports only obj c window handle NSWindow *nswin = glfwGetCocoaWindow(window); CA::MetalLayer* layer = CA::MetalLayer::layer(); layer->setDevice(device); layer->setPixelFormat(MTL::PixelFormatBGRA8Unorm); // bridge to obj c here because NSWindow expetcs objc CAMetalLayer* l = (__bridge CAMetalLayer*)layer; nswin.contentView.layer = l; nswin.contentView.wantsLayer = YES; Is there any official way to handle event in Metal cpp without objective c support? Maybe MetalKit will have such features in future?

Hi experts, I'm working on PathTracer using metal-cpp and I use per-primitive data from you latest presentation: https://developer.apple.com/videos/play/wwdc2022/10105/ and described here: https://developer.apple.com/documentation/metal/ray_tracing_with_acceleration_structures Currently I want to store something like this structure: struct Triangle {     vector_float3 positions[3];     uint32_t normals[3];     uint32_t tangent[3];     uint32_t uv[3]; }; Are there any guidelines on size of this small amounts of data that I could store in acceleration structure? And if it stores inside BVH nodes -> that could affect traversal performance. Thanks!