- " vec4 world = uModelView * vec4(aPosition,1.0);\n"
- " vec2 d = (world.xy - uCenter) * uAnglePerUnit;\n"
- " float a = length(d);\n"
- " float cs = cos(radians(a));\n"
+ " mediump vec4 world = uModelView * vec4(aPosition,1.0);\n"
+ " mediump vec2 d = (world.xy - uCenter) * uAnglePerUnit;\n"
+ " mediump float a = length(d);\n"
+ " mediump float cs = cos(radians(a));\n"