attribute vec2 direction;
|
|
uniform float u_size;
|
|
varying vec2 v_textureCoordinates;
|
|
void main()
|
{
|
vec4 position;
|
if (czm_morphTime == 1.0)
|
{
|
position = vec4(czm_sunPositionWC, 1.0);
|
}
|
else
|
{
|
position = vec4(czm_sunPositionColumbusView.zxy, 1.0);
|
}
|
|
vec4 positionEC = czm_view * position;
|
vec4 positionWC = czm_eyeToWindowCoordinates(positionEC);
|
|
vec2 halfSize = vec2(u_size * 0.5);
|
halfSize *= ((direction * 2.0) - 1.0);
|
|
gl_Position = czm_viewportOrthographic * vec4(positionWC.xy + halfSize, -positionWC.z, 1.0);
|
|
v_textureCoordinates = direction;
|
}
|
