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WebGPURenderer: Add HDR Support #29573

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Merged
merged 8 commits into from
Aug 6, 2025
Merged

WebGPURenderer: Add HDR Support #29573

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e0c8a51
WebGPURenderer: Add HDR Support
RenaudRohlinger Oct 7, 2024
29655e6
cleanup
RenaudRohlinger Oct 7, 2024
99e4d38
merge with dev
RenaudRohlinger Jul 26, 2025
9905b9d
Add support for HDR via colorSpace, include Postprocessing support
RenaudRohlinger Jul 26, 2025
4774d23
cleanup
RenaudRohlinger Jul 26, 2025
11be838
Fix, revert ExtendedLinear and use outputType instead
RenaudRohlinger Jul 28, 2025
f84ba30
cleanupg
RenaudRohlinger Jul 28, 2025
762ad77
feedback
RenaudRohlinger Jul 28, 2025
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8 changes: 4 additions & 4 deletions examples/webgpu_tsl_vfx_linkedparticles.html
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Original file line number Diff line number Diff line change
Expand Up @@ -17,8 +17,8 @@
<script type="importmap">
{
"imports": {
"three": "../build/three.webgpu.js",
"three/tsl": "../build/three.webgpu.js",
"three": "../src/Three.WebGPU.js",
"three/tsl": "../src/Three.WebGPU.js",
"three/addons/": "./jsm/"
}
}
Expand Down Expand Up @@ -88,7 +88,7 @@

// renderer

renderer = new THREE.WebGPURenderer( { antialias: true } );
renderer = new THREE.WebGPURenderer( { antialias: true, hdr: true } );
renderer.setClearColor( 0x14171a );
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize( window.innerWidth, window.innerHeight );
Expand Down Expand Up @@ -369,7 +369,7 @@
const gui = new GUI();

gui.add( controls, 'autoRotate' ).name( 'Auto Rotate' );
gui.add( controls, 'autoRotateSpeed', - 10.0, 10.0, 0.01 ).name( 'Auto Rotate Speed' );
gui.add( controls, 'autoRotateSpeed', - 10.0, 10.0, 0.01 ).name( 'Auto Rotate Speed' );

const partFolder = gui.addFolder( 'Particles' );
partFolder.add( timeScale, 'value', 0.0, 4.0, 0.01 ).name( 'timeScale' );
Expand Down
7 changes: 6 additions & 1 deletion src/renderers/webgpu/WebGPUBackend.js
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Expand Up @@ -29,6 +29,7 @@ class WebGPUBackend extends Backend {
this.parameters.alpha = ( parameters.alpha === undefined ) ? true : parameters.alpha;

this.parameters.requiredLimits = ( parameters.requiredLimits === undefined ) ? {} : parameters.requiredLimits;
this.parameters.hdr = ( parameters.hdr === true );

this.trackTimestamp = ( parameters.trackTimestamp === true );

Expand Down Expand Up @@ -107,14 +108,18 @@ class WebGPUBackend extends Backend {
this.context = context;

const alphaMode = parameters.alpha ? 'premultiplied' : 'opaque';
const hdr = parameters.hdr ? 'extended' : 'standard';

this.trackTimestamp = this.trackTimestamp && this.hasFeature( GPUFeatureName.TimestampQuery );

this.context.configure( {
device: this.device,
format: this.utils.getPreferredCanvasFormat(),
usage: GPUTextureUsage.RENDER_ATTACHMENT | GPUTextureUsage.COPY_SRC,
alphaMode: alphaMode
alphaMode: alphaMode,
toneMapping: {
mode: hdr
}
} );

this.updateSize();
Expand Down
10 changes: 7 additions & 3 deletions src/renderers/webgpu/utils/WebGPUUtils.js
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Expand Up @@ -111,11 +111,15 @@ class WebGPUUtils {

getPreferredCanvasFormat() {

// TODO: Remove this check when Quest 34.5 is out
// https://github.com/mrdoob/three.js/pull/29221/files#r1731833949

if ( navigator.userAgent.includes( 'Quest' ) ) {
if ( this.backend.parameters.hdr === true ) {

return GPUTextureFormat.RGBA16Float;

} else if ( navigator.userAgent.includes( 'Quest' ) ) {

// TODO: Remove this check when Quest 34.5 is out
// https://github.com/mrdoob/three.js/pull/29221/files#r1731833949
return GPUTextureFormat.BGRA8Unorm;

} else {
Expand Down