egui/crates/egui_glium/src/shader/vertex_120.glsl

18 lines
459 B
GLSL

#version 120
uniform vec2 u_screen_size;
attribute vec2 a_pos;
attribute vec4 a_srgba; // 0-255 sRGB
attribute vec2 a_tc;
varying vec4 v_rgba_gamma; // 0-1 gamma sRGBA
varying vec2 v_tc;
void main() {
gl_Position = vec4(
2.0 * a_pos.x / u_screen_size.x - 1.0,
1.0 - 2.0 * a_pos.y / u_screen_size.y,
0.0,
1.0);
v_rgba_gamma = a_srgba / 255.0;
v_tc = a_tc;
}