cesiumDemo/Source/Shaders/SunVS.js

//This file is automatically rebuilt by the Cesium build process.
export default "attribute vec2 direction;\n\
uniform float u_size;\n\
varying vec2 v_textureCoordinates;\n\
void main()\n\
{\n\
vec4 position;\n\
if (czm_morphTime == 1.0)\n\
{\n\
position = vec4(czm_sunPositionWC, 1.0);\n\
}\n\
else\n\
{\n\
position = vec4(czm_sunPositionColumbusView.zxy, 1.0);\n\
}\n\
vec4 positionEC = czm_view * position;\n\
vec4 positionWC = czm_eyeToWindowCoordinates(positionEC);\n\
vec2 halfSize = vec2(u_size * 0.5);\n\
halfSize *= ((direction * 2.0) - 1.0);\n\
gl_Position = czm_viewportOrthographic * vec4(positionWC.xy + halfSize, -positionWC.z, 1.0);\n\
v_textureCoordinates = direction;\n\
}\n\
";