Add **Web platform with Emscripten**

Source/Engine/Graphics/Config.h

@@ -45,7 +45,9 @@
 #define GPU_USE_WINDOW_SRV 1
 
 // True if allow graphics profile events and markers
+#ifndef GPU_ALLOW_PROFILE_EVENTS
 #define GPU_ALLOW_PROFILE_EVENTS (!BUILD_RELEASE)
+#endif
 
 // True if allow hardware tessellation shaders (Hull and Domain shaders)
 #ifndef GPU_ALLOW_TESSELLATION_SHADERS
@@ -58,7 +60,9 @@
 #endif
 
 // Enable/disable creating GPU resources on separate threads (otherwise only the main thread can be used)
+#ifndef GPU_ENABLE_ASYNC_RESOURCES_CREATION
 #define GPU_ENABLE_ASYNC_RESOURCES_CREATION 1
+#endif
 
 // Enable/disable force shaders recompilation
 #define GPU_FORCE_RECOMPILE_SHADERS 0

Source/Engine/Graphics/Graphics.Build.cs

@@ -96,6 +96,10 @@ public class Graphics : EngineModule
             else
                 Log.WarningOnce(string.Format("Building for {0} without Vulkan rendering backend (Vulkan SDK is missing)", options.Platform.Target), ref _logMissingVulkanSDK);
             break;
+        case TargetPlatform.Web:
+            options.PrivateDependencies.Add("GraphicsDeviceNull");
+            // TODO: add WebGPU
+            break;
         default: throw new InvalidPlatformException(options.Platform.Target);
         }
 

Source/Engine/Graphics/RenderBuffers.cpp

@@ -127,7 +127,7 @@ GPUTexture* RenderBuffers::RequestHiZ(GPUContext* context, bool fullRes, int32 m
 
     // Allocate or resize buffer (with full mip-chain)
     // TODO: migrate to inverse depth and try using r16 again as default (should have no artifacts anymore)
-    auto format = PLATFORM_ANDROID || PLATFORM_IOS || PLATFORM_SWITCH ? PixelFormat::R16_UInt : PixelFormat::R32_Float;
+    auto format = PLATFORM_WEB || PLATFORM_ANDROID || PLATFORM_IOS || PLATFORM_SWITCH ? PixelFormat::R16_UInt : PixelFormat::R32_Float;
     auto width = fullRes ? _width : Math::Max(_width >> 1, 1);
     auto height = fullRes ? _height : Math::Max(_height >> 1, 1);
     auto desc = GPUTextureDescription::New2D(width, height, mipLevels, format, GPUTextureFlags::ShaderResource);