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Merged
pull merged 1 commit into from
Mar 16, 2026
+24 −5
Merged

[pull] dev from mrdoob:dev #1209

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29 changes: 24 additions & 5 deletions src/renderers/webgpu/WebGPUBackend.js
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Original file line number Diff line number Diff line change
Expand Up @@ -18,6 +18,8 @@ import { WebGPUCoordinateSystem, TimestampQuery, REVISION, HalfFloatType, Compat
import WebGPUTimestampQueryPool from './utils/WebGPUTimestampQueryPool.js';
import { warnOnce, error } from '../../utils.js';

const _clearValue = { r: 0, g: 0, b: 0, a: 1 };

/**
* A backend implementation targeting WebGPU.
*
Expand Down Expand Up @@ -682,7 +684,21 @@ class WebGPUBackend extends Backend {

if ( renderContext.clearColor ) {

colorAttachment.clearValue = i === 0 ? renderContext.clearColorValue : { r: 0, g: 0, b: 0, a: 1 };
if ( i === 0 ) {

colorAttachment.clearValue = renderContext.clearColorValue;

} else {

_clearValue.r = 0;
_clearValue.g = 0;
_clearValue.b = 0;
_clearValue.a = 1;

colorAttachment.clearValue = _clearValue;

}

colorAttachment.loadOp = GPULoadOp.Clear;

} else {
Expand Down Expand Up @@ -1224,15 +1240,18 @@ class WebGPUBackend extends Backend {

let colorAttachments = [];
let depthStencilAttachment;
let clearValue;

let supportsDepth;
let supportsStencil;

if ( color ) {

const clearColor = this.getClearColor();
clearValue = { r: clearColor.r, g: clearColor.g, b: clearColor.b, a: clearColor.a };

_clearValue.r = clearColor.r;
_clearValue.g = clearColor.g;
_clearValue.b = clearColor.b;
_clearValue.a = clearColor.a;

}

Expand All @@ -1249,7 +1268,7 @@ class WebGPUBackend extends Backend {

const colorAttachment = colorAttachments[ 0 ];

colorAttachment.clearValue = clearValue;
colorAttachment.clearValue = _clearValue;
colorAttachment.loadOp = GPULoadOp.Clear;
colorAttachment.storeOp = GPUStoreOp.Store;

Expand All @@ -1268,7 +1287,7 @@ class WebGPUBackend extends Backend {

const clearConfig = {
loadOp: color ? GPULoadOp.Clear : GPULoadOp.Load,
clearValue: color ? clearValue : undefined
clearValue: color ? _clearValue : undefined
};

if ( supportsDepth ) {
Expand Down