fix (1.0, mtoon): fix alphaTest issue

See: mrdoob/three.js#22409
pixiv · Oct 20, 2021 · cb86020 · cb86020
1 parent 6809d3d
commit cb86020
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/packages/three-vrm-materials-mtoon/src/MToonMaterial.ts b/packages/three-vrm-materials-mtoon/src/MToonMaterial.ts
@@ -17,6 +17,7 @@ import type { MToonMaterialParameters } from './MToonMaterialParameters';
 export class MToonMaterial extends THREE.ShaderMaterial {
   public uniforms: {
     litFactor: THREE.IUniform<THREE.Color>;
+    alphaTest: THREE.IUniform<number>;
     opacity: THREE.IUniform<number>;
     map: THREE.IUniform<THREE.Texture | null>;
     mapUvTransform: THREE.IUniform<THREE.Matrix3>;
@@ -431,6 +432,13 @@ export class MToonMaterial extends THREE.ShaderMaterial {
     );
     this._updateTextureMatrix(this.uniforms.uvAnimationMaskTexture, this.uniforms.uvAnimationMaskTextureUvTransform);
 
+    // COMPAT workaround: starting from r132, alphaTest becomes a uniform instead of preprocessor value
+    const threeRevision = parseInt(THREE.REVISION, 10);
+
+    if (threeRevision >= 132) {
+      this.uniforms.alphaTest.value = this.alphaTest;
+    }
+
     this.uniformsNeedUpdate = true;
   }