diff --git a/packages/shadcn/components/agents-ui/react-shader-toy.tsx b/packages/shadcn/components/agents-ui/react-shader-toy.tsx
index 3ff09127b..8d05a2e9a 100644
--- a/packages/shadcn/components/agents-ui/react-shader-toy.tsx
+++ b/packages/shadcn/components/agents-ui/react-shader-toy.tsx
@@ -821,7 +821,9 @@ export function ReactShaderToy({
     }
     if (uniformsRef.current.iFrame?.isNeeded) {
       const timeDeltaUniform = gl.getUniformLocation(shaderProgramRef.current, UNIFORM_FRAME);
-      gl.uniform1i(timeDeltaUniform, (uniformsRef.current.iFrame.value as number)++);
+      const frame = uniformsRef.current.iFrame.value as number;
+      gl.uniform1i(timeDeltaUniform, frame);
+      uniformsRef.current.iFrame.value = frame + 1;
     }
     if (texturesArrRef.current.length > 0) {
       for (let index = 0; index < texturesArrRef.current.length; index++) {