32 lines
618 B
GLSL
32 lines
618 B
GLSL
#version 450 core
|
|
layout (triangles) in;
|
|
layout (triangle_strip, max_vertices = 4) out;
|
|
in vec4 vCol[];
|
|
out vec4 gColorC;
|
|
out vec4 gColorE;
|
|
out vec2 gBoundingBox;
|
|
|
|
void main()
|
|
{
|
|
vec4 pa = gl_in[0].gl_Position;
|
|
vec4 pb = gl_in[1].gl_Position;
|
|
vec4 pc = gl_in[2].gl_Position;
|
|
gColorC = vCol[0];
|
|
gColorE = vCol[1];
|
|
|
|
gBoundingBox = vec2 (-1,1);
|
|
gl_Position = pb;
|
|
EmitVertex();
|
|
gBoundingBox = vec2 (1,1);
|
|
gl_Position = pa;
|
|
EmitVertex();
|
|
gBoundingBox = vec2 (-1,-1);
|
|
gl_Position = pc;
|
|
EmitVertex();
|
|
gBoundingBox = vec2 (1,-1);
|
|
gl_Position = pa + pc - pb;
|
|
EmitVertex();
|
|
|
|
EndPrimitive();
|
|
}
|