21 lines
422 B
Plaintext
21 lines
422 B
Plaintext
|
#version 410 core
|
||
|
|
|
||
|
|
layout(quads, equal_spacing, ccw) in;
|
||
|
|
|
||
|
|
//quad interpol
|
||
|
|
vec4 interpolate(in vec4 v0, in vec4 v1, in vec4 v2, in vec4 v3)
|
||
|
|
{
|
||
|
|
vec4 a = mix(v0, v1, gl_TessCoord.x);
|
||
|
|
vec4 b = mix(v3, v2, gl_TessCoord.x);
|
||
|
|
return mix(a, b, gl_TessCoord.y);
|
||
|
|
}
|
||
|
|
|
||
|
|
void main()
|
||
|
|
{
|
||
|
|
gl_Position = interpolate(
|
||
|
|
gl_in[0].gl_Position,
|
||
|
|
gl_in[1].gl_Position,
|
||
|
|
gl_in[2].gl_Position,
|
||
|
|
gl_in[3].gl_Position);
|
||
|
|
}
|