livecodingspace-app/support/client/lib/vwf/model/cesium/Shaders/BillboardCollectionFS.glsl

uniform sampler2D u_atlas;

varying vec2 v_textureCoordinates;

#ifdef RENDER_FOR_PICK
varying vec4 v_pickColor;
#else
varying vec4 v_color;
#endif

void main()
{
#ifdef RENDER_FOR_PICK
    vec4 vertexColor = vec4(1.0, 1.0, 1.0, 1.0);
#else
    vec4 vertexColor = v_color;
#endif
    
    vec4 color = texture2D(u_atlas, v_textureCoordinates) * vertexColor;
    if (color.a == 0.0)
    {
        discard;
    }
    
#ifdef RENDER_FOR_PICK
    gl_FragColor = v_pickColor;
#else
    gl_FragColor = color;
#endif
}