mediump vec4 gridPosition = vec4( fixedFactor + ( visualSize.xy - fixedTotal ) * stretch / stretchTotal, 0.0, 1.0 );\n
mediump vec4 vertexPosition = gridPosition;\n
vertexPosition.xy -= visualSize.xy * vec2( 0.5, 0.5 );\n
mediump vec4 gridPosition = vec4( fixedFactor + ( visualSize.xy - fixedTotal ) * stretch / stretchTotal, 0.0, 1.0 );\n
mediump vec4 vertexPosition = gridPosition;\n
vertexPosition.xy -= visualSize.xy * vec2( 0.5, 0.5 );\n