blob: b47a8775e441600496c249733215e4c91851a87a [file] [log] [blame] [edit]
layout(quads, equal_spacing, ccw) in;
void main() {
float u = gl_TessCoord.x;
float omu = 1 - u;
float v = gl_TessCoord.y;
float omv = 1 - v;
gl_Position = omu * omv * gl_in[0].gl_Position +
u * omv * gl_in[1].gl_Position + u * v * gl_in[2].gl_Position +
omu * v * gl_in[3].gl_Position;
}