Add more improvements

src/graphics/shaders/distance-vs.glsl

@@ -1,15 +0,0 @@
-#version 300 es
-
-precision lowp float;
-
-uniform mat3 modelTransform;
-uniform vec2 squareToAspectRatio;
-
-in vec4 vertexPosition;
-out vec2 position;
-
-void main() {
-    vec3 vertexPosition2D = vec3(vertexPosition.xy, 1.0) * modelTransform;
-    gl_Position = vec4(vertexPosition2D.xy, 0.0, 1.0);
-    position = vertexPosition2D.xy * squareToAspectRatio;
-}