1 attribute mediump vec2 aPosition;
2 uniform highp mat4 uMvpMatrix;
3 uniform highp vec3 uSize;
5 //Visual size and offset
6 uniform mediump vec2 offset;
7 uniform highp vec2 size;
8 uniform mediump vec4 offsetSizeMode;
9 uniform mediump vec2 origin;
10 uniform mediump vec2 anchorPoint;
12 vec4 ComputeVertexPosition()
14 vec2 visualSize = mix(uSize.xy*size, size, offsetSizeMode.zw );
15 vec2 visualOffset = mix( offset, offset/uSize.xy, offsetSizeMode.xy);
16 return vec4( (aPosition + anchorPoint)*visualSize + (visualOffset + origin)*uSize.xy, 0.0, 1.0 );
21 gl_Position = uMvpMatrix * ComputeVertexPosition();