fix: return a white texture when the texture is missing in semantic.h…

…andlerTexture
hiloteam · Apr 11, 2024 · b92c7ae · b92c7ae
1 parent 58401a5
commit b92c7ae
Showing 1 changed file with 16 additions and 1 deletion.
diff --git a/src/material/semantic.js b/src/material/semantic.js
@@ -115,7 +115,8 @@ const semantic = {
             return this.handlerGLTexture(value.target, value.getGLTexture(state), textureIndex);
         }
 
-        return undefined;
+        const blankTexture = this.getBlankTexture();
+        return this.handlerGLTexture(blankTexture.target, blankTexture.getGLTexture(state), textureIndex);
     },
 
     /**
@@ -146,6 +147,20 @@ const semantic = {
         return 0;
     },
 
+    _blankTexture: null,
+    getBlankTexture() {
+        if (!this._blankTexture) {
+            this._blankTexture = new DataTexture({
+                width: 2,
+                height: 2,
+                type: constants.UNSIGNED_BYTE,
+                image: new Uint8Array([128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128]),
+            });
+        }
+
+        return this._blankTexture;
+    },
+
     // attributes
 
     /**