15 lines
227 B
GLSL
15 lines
227 B
GLSL
#version 150
|
|
|
|
out float logz;
|
|
|
|
uniform float z_near, z_far;
|
|
|
|
const float C = 0.0001;
|
|
float FC = 1. / log(z_far * C + 1.);
|
|
|
|
void main(void) {
|
|
vec4 pos = qgl_ftransform();
|
|
logz = log(pos.w * C + 1.) * FC;
|
|
gl_Position = pos;
|
|
}
|