[pull] dev from mrdoob:dev

.github/workflows/codeql-code-scanning.yml

@@ -30,16 +30,16 @@ jobs:
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
-      uses: github/codeql-action/init@38697555549f1db7851b81482ff19f1fa5c4fedc # v4
+      uses: github/codeql-action/init@c10b8064de6f491fea524254123dbe5e09572f13 # v4
       with:
         languages: ${{ matrix.language }}
         config-file: ./.github/codeql-config.yml
         queries: security-and-quality
 
     - name: Autobuild
-      uses: github/codeql-action/autobuild@38697555549f1db7851b81482ff19f1fa5c4fedc # v4
+      uses: github/codeql-action/autobuild@c10b8064de6f491fea524254123dbe5e09572f13 # v4
 
     - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@38697555549f1db7851b81482ff19f1fa5c4fedc # v4
+      uses: github/codeql-action/analyze@c10b8064de6f491fea524254123dbe5e09572f13 # v4
       with:
         category: "/language:${{matrix.language}}"

src/nodes/lighting/ShadowNode.js

@@ -1,5 +1,5 @@
 import ShadowBaseNode, { shadowPositionWorld } from './ShadowBaseNode.js';
-import { float, vec2, vec3, int, Fn } from '../tsl/TSLBase.js';
+import { float, vec2, vec3, vec4, int, Fn } from '../tsl/TSLBase.js';
 import { reference } from '../accessors/ReferenceNode.js';
 import { texture, textureLoad } from '../accessors/TextureNode.js';
 import { cubeTexture } from '../accessors/CubeTextureNode.js';
@@ -21,6 +21,8 @@ import { getShadowMaterial, disposeShadowMaterial, BasicShadowFilter, PCFShadowF
 import ChainMap from '../../renderers/common/ChainMap.js';
 import { textureSize } from '../accessors/TextureSizeNode.js';
 import { uv } from '../accessors/UV.js';
+import { positionLocal } from '../accessors/Position.js';
+import { uniform } from '../core/UniformNode.js';
 
 //
 
@@ -506,7 +508,27 @@ class ShadowNode extends ShadowBaseNode {
 		const shadowIntensity = reference( 'intensity', 'float', shadow ).setGroup( renderGroup );
 		const normalBias = reference( 'normalBias', 'float', shadow ).setGroup( renderGroup );
 
-		const shadowPosition = lightShadowMatrix( light ).mul( shadowPositionWorld.add( normalWorld.mul( normalBias ) ) );
+		const shadowMatrix = lightShadowMatrix( light );
+		const shadowNormalBias = normalWorld.mul( normalBias );
+
+		let shadowPosition;
+
+		if ( ! renderer.highPrecision || builder.material.receivedShadowPositionNode || builder.context.shadowPositionWorld ) {
+
+			shadowPosition = shadowMatrix.mul( shadowPositionWorld.add( shadowNormalBias ) );
+
+		} else {
+
+			const highpShadowModelMatrix = uniform( 'mat4' ).onObjectUpdate( ( { object }, self ) => {
+
+				return self.value.multiplyMatrices( shadowMatrix.value, object.matrixWorld );
+
+			} );
+
+			shadowPosition = highpShadowModelMatrix.mul( positionLocal ).add( shadowMatrix.mul( vec4( shadowNormalBias, 0 ) ) );
+
+		}
+
 		const shadowCoord = this.setupShadowCoord( builder, shadowPosition );
 
 		//