diff --git a/frontend/src/ShaderBackground.tsx b/frontend/src/ShaderBackground.tsx
index d476a74..832fa19 100644
--- a/frontend/src/ShaderBackground.tsx
+++ b/frontend/src/ShaderBackground.tsx
@@ -927,6 +927,61 @@ export function ShaderBackground() {
     )
       return;
 
+    const posBuffer = gl.createBuffer();
+    gl.bindBuffer(gl.ARRAY_BUFFER, posBuffer);
+    gl.bufferData(
+      gl.ARRAY_BUFFER,
+      new Float32Array([-1, -1, 1, -1, -1, 1, -1, 1, 1, -1, 1, 1]),
+      gl.STATIC_DRAW
+    );
+
+    {
+      gl.useProgram(buffer_1_program);
+      const posAttrLocation = gl.getAttribLocation(
+        buffer_1_program,
+        "a_position"
+      );
+      gl.vertexAttribPointer(posAttrLocation, 2, gl.FLOAT, false, 0, 0);
+      gl.enableVertexAttribArray(posAttrLocation);
+    }
+
+    {
+      gl.useProgram(buffer_2_program);
+      const posAttrLocation = gl.getAttribLocation(
+        buffer_2_program,
+        "a_position"
+      );
+      gl.vertexAttribPointer(posAttrLocation, 2, gl.FLOAT, false, 0, 0);
+      gl.enableVertexAttribArray(posAttrLocation);
+    }
+
+    {
+      gl.useProgram(buffer_3_program);
+      const posAttrLocation = gl.getAttribLocation(
+        buffer_3_program,
+        "a_position"
+      );
+      gl.vertexAttribPointer(posAttrLocation, 2, gl.FLOAT, false, 0, 0);
+      gl.enableVertexAttribArray(posAttrLocation);
+    }
+
+    {
+      gl.useProgram(buffer_4_program);
+      const posAttrLocation = gl.getAttribLocation(
+        buffer_4_program,
+        "a_position"
+      );
+      gl.vertexAttribPointer(posAttrLocation, 2, gl.FLOAT, false, 0, 0);
+      gl.enableVertexAttribArray(posAttrLocation);
+    }
+
+    {
+      gl.useProgram(finalProgram);
+      const posAttrLocation = gl.getAttribLocation(finalProgram, "a_position");
+      gl.vertexAttribPointer(posAttrLocation, 2, gl.FLOAT, false, 0, 0);
+      gl.enableVertexAttribArray(posAttrLocation);
+    }
+
     function setResolution(
       program: WebGLProgram,
       canvas: HTMLCanvasElement,
@@ -1034,14 +1089,6 @@ export function ShaderBackground() {
         console.log("Framebuffer is unknown");
     }
 
-    const posBuffer = gl.createBuffer();
-    gl.bindBuffer(gl.ARRAY_BUFFER, posBuffer);
-    gl.bufferData(
-      gl.ARRAY_BUFFER,
-      new Float32Array([0, 0, 1, 0, 0, 1, 1, 1]),
-      gl.STATIC_DRAW
-    );
-
     const ichannel0_location_buffer_1 = gl.getUniformLocation(
       buffer_1_program as WebGLProgram,
       "iChannel0"