fix(patch): state reset

sakitam-gis · Mar 25, 2023 · 7adafcc · 7adafcc
1 parent 5360122
commit 7adafcc
Showing 1 changed file with 16 additions and 4 deletions.
diff --git a/src/core/State.ts b/src/core/State.ts
@@ -627,11 +627,14 @@ export default class State extends Base {
    */
   setStencilFunc(cmp: GLenum, ref: GLenum, mask: GLenum, face?: GLenum) {
     if (
-      this.#state.stencil?.func?.cmp !== cmp ||
-      this.#state.stencil?.func?.ref !== ref ||
-      this.#state.stencil?.func?.mask !== mask
+      this.#state?.stencil?.func?.cmp !== cmp ||
+      this.#state?.stencil?.func?.ref !== ref ||
+      this.#state?.stencil?.func?.mask !== mask
     ) {
-      if (!this.#state.stencil?.func) {
+      if (!this.#state?.stencil) {
+        this.#state.stencil = {} as StateOptions['stencil'];
+      }
+      if (!this.#state?.stencil?.func) {
         this.#state.stencil.func = {} as StateOptions['stencil']['func'];
       }
       this.#state.stencil.func = {
@@ -657,6 +660,10 @@ export default class State extends Base {
   setStencilOp(fail, zFail, zPass, face?: GLenum) {
     const flag = false;
 
+    if (!this.#state?.stencil) {
+      this.#state.stencil = {} as StateOptions['stencil'];
+    }
+
     if (!face || face === this.gl.FRONT_AND_BACK) {
       return (
         this.#state.stencil?.opFront?.fail !== fail ||
@@ -843,6 +850,11 @@ export default class State extends Base {
         currentProgramId: -1,
         clearAlpha: 1,
         clearColor: new Color(0),
+        stencil: {
+          func: {},
+          opFront: {},
+          opBack: {},
+        },
       } as unknown as StateOptions);
     } else {
       keys