custom shader webgpu

interfaces/Crafter.Graphics-UI.cppm

@@ -168,14 +168,17 @@ export namespace Crafter {
         void DispatchText(GraphicsCommandBuffer cmd, std::uint32_t bufferSlot, std::uint32_t itemCount,
                           std::array<float,4> clipRectPx = {0.0f, 0.0f, 1e9f, 1e9f});
 
-#ifndef CRAFTER_GRAPHICS_WINDOW_DOM
-        // Generic dispatch — user-authored shaders. Vulkan-only in v1; on DOM
-        // the WebGPU side has no bindless and would need per-shader bind-group
-        // declaration. See plan section 3b for the design path.
-        void Dispatch(GraphicsCommandBuffer cmd, const ComputeShader& shader,
+        // Generic dispatch for user-authored shaders. On Vulkan, `shader` is
+        // a SPIR-V compute pipeline (bindless via VK_EXT_descriptor_heap, so
+        // any resource indices baked into push data resolve through the
+        // global heap). On DOM, `shader` carries a UICustomBinding list
+        // declared at Load time; the renderer reads the listed slot uints
+        // out of `push`, resolves them against heap.bufferTable /
+        // imageTable / samplerTable, and builds the bind groups before
+        // dispatching.
+        void Dispatch(GraphicsCommandBuffer cmd, const GraphicsComputeShader& shader,
                       const void* push, std::uint32_t pushBytes,
                       std::uint32_t gx, std::uint32_t gy = 1, std::uint32_t gz = 1);
-#endif
 
         // Allocates a heap slot for the buffer and registers the GPU handle.
         // Returns a move-only BufferSlot RAII handle.