arcVertexShader.glsl

precision mediump float;
attribute vec4 a_position;
attribute vec4 a_color;
attribute vec2 a_uv;
attribute vec2 a_angleUnit;
attribute float a_pixelSize;
attribute float a_innerRadius;

uniform mat4 u_projection;
varying vec4 color;
varying vec2 uv;
varying float pixelSize;
varying float innerRadius;
varying vec2 angleUnit;

void main(){
  gl_Position = u_projection*a_position;
  uv = a_uv;
  color = a_color;
  pixelSize = a_pixelSize;
  innerRadius = a_innerRadius;
  angleUnit = a_angleUnit;
}