Use one texture with two channels for video

src/anaglyph.wgsl

@@ -37,13 +37,13 @@ fn vs_main(
 
 // Fragment shader
 @group(0) @binding(0)
-var u_textures: binding_array<texture_2d<f32>>;
+var u_texture: texture_2d<f32>;
 @group(0) @binding(1)
 var u_sampler: sampler;
 
 
 @fragment
 fn fs_main(in: VertexOutput) -> @location(0) vec4<f32> {
-    return textureSample(u_textures[0], u_sampler, in.tex_coords);
+    return textureSample(u_texture, u_sampler, in.tex_coords);
     // return vec4<f32>(0.3, 0.2, 0.1, 1.0);
 }