Fix undefined shader texture bind (#597)

Author: wouterlucas

src/core/CoreNode.ts

@@ -898,6 +898,9 @@ export class CoreNode extends EventEmitter {
   };
 
   private onTextureFailed: TextureFailedEventHandler = (_, error) => {
+    // immediately set isRenderable to false, so that we handle the error
+    // without waiting for the next frame loop
+    this.isRenderable = false;
     this.setUpdateType(UpdateType.IsRenderable);
 
     // If parent has a render texture, flag that we need to update
@@ -912,6 +915,9 @@ export class CoreNode extends EventEmitter {
   };
 
   private onTextureFreed: TextureFreedEventHandler = () => {
+    // immediately set isRenderable to false, so that we handle the error
+    // without waiting for the next frame loop
+    this.isRenderable = false;
     this.setUpdateType(UpdateType.IsRenderable);
 
     // If parent has a render texture, flag that we need to update

src/core/renderers/webgl/WebGlCoreShader.ts

@@ -255,7 +255,10 @@ export abstract class WebGlCoreShader extends CoreShader {
     props: Record<string, unknown> | null,
   ) {
     this.bindBufferCollection(renderOp.buffers);
-    if (renderOp.textures.length > 0) {
+
+    // Since we're not using batched rendering yet we can safely test
+    // for first texture only
+    if (renderOp.textures.length > 0 && renderOp.textures[0]?.ctxTexture) {
       this.bindTextures(renderOp.textures);
     }