From 5d92cab84334a5a5731b0db0950bf3f3910daf9e Mon Sep 17 00:00:00 2001
From: Martin Valigursky <59932779+mvaligursky@users.noreply.github.com>
Date: Wed, 15 Nov 2023 09:41:52 +0000
Subject: [PATCH] WebGPU support for rendering to RG11B10 format (#5824)

Co-authored-by: Martin Valigursky <mvaligursky@snapchat.com>
---
 src/platform/graphics/webgl/webgl-graphics-device.js   | 1 +
 src/platform/graphics/webgl/webgl-texture.js           | 1 +
 src/platform/graphics/webgpu/webgpu-graphics-device.js | 2 +-
 3 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/platform/graphics/webgl/webgl-graphics-device.js b/src/platform/graphics/webgl/webgl-graphics-device.js
index 05e23947b10..b72f1116231 100644
--- a/src/platform/graphics/webgl/webgl-graphics-device.js
+++ b/src/platform/graphics/webgl/webgl-graphics-device.js
@@ -937,6 +937,7 @@ class WebglGraphicsDevice extends GraphicsDevice {
             this.extVertexArrayObject = true;
             this.extColorBufferFloat = this.getExtension('EXT_color_buffer_float');
             this.extDepthTexture = true;
+            this.textureRG11B10Renderable = true;
         } else {
             this.extBlendMinmax = this.getExtension("EXT_blend_minmax");
             this.extDrawBuffers = this.getExtension('WEBGL_draw_buffers');
diff --git a/src/platform/graphics/webgl/webgl-texture.js b/src/platform/graphics/webgl/webgl-texture.js
index a1ec2b609d3..7a777074328 100644
--- a/src/platform/graphics/webgl/webgl-texture.js
+++ b/src/platform/graphics/webgl/webgl-texture.js
@@ -263,6 +263,7 @@ class WebglTexture {
                 }
                 break;
             case PIXELFORMAT_111110F: // WebGL2 only
+                Debug.assert(device.isWebGL2, "PIXELFORMAT_111110F texture format is not supported by WebGL1.");
                 this._glFormat = gl.RGB;
                 this._glInternalFormat = gl.R11F_G11F_B10F;
                 this._glPixelType = gl.UNSIGNED_INT_10F_11F_11F_REV;
diff --git a/src/platform/graphics/webgpu/webgpu-graphics-device.js b/src/platform/graphics/webgpu/webgpu-graphics-device.js
index b975b35e775..fb14fd7ff54 100644
--- a/src/platform/graphics/webgpu/webgpu-graphics-device.js
+++ b/src/platform/graphics/webgpu/webgpu-graphics-device.js
@@ -206,7 +206,6 @@ class WebgpuGraphicsDevice extends GraphicsDevice {
         //      "depth32float-stencil8",
         //      "indirect-first-instance",
         //      "shader-f16",
-        //      "rg11b10ufloat-renderable",
         //      "bgra8unorm-storage",
 
         // request optional features
@@ -223,6 +222,7 @@ class WebgpuGraphicsDevice extends GraphicsDevice {
         this.extCompressedTextureETC = requireFeature('texture-compression-etc2');
         this.extCompressedTextureASTC = requireFeature('texture-compression-astc');
         this.supportsTimestampQuery = requireFeature('timestamp-query');
+        this.textureRG11B10Renderable = requireFeature('rg11b10ufloat-renderable');
         Debug.log(`WEBGPU features: ${requiredFeatures.join(', ')}`);
 
         /** @type {GPUDeviceDescriptor} */