mirror of
https://gitlab.com/veloren/veloren.git
synced 2024-08-30 18:12:32 +00:00
47 lines
1.1 KiB
GLSL
47 lines
1.1 KiB
GLSL
#version 330 core
|
|
|
|
in vec3 f_pos;
|
|
|
|
layout (std140)
|
|
uniform u_locals {
|
|
vec4 nul;
|
|
};
|
|
|
|
layout (std140)
|
|
uniform u_globals {
|
|
mat4 view_mat;
|
|
mat4 proj_mat;
|
|
vec4 cam_pos;
|
|
vec4 focus_pos;
|
|
vec4 view_distance;
|
|
vec4 time_of_day;
|
|
vec4 time;
|
|
};
|
|
|
|
out vec4 tgt_color;
|
|
|
|
const float PI = 3.141592;
|
|
|
|
vec3 get_sky_color(vec3 dir, float time_of_day) {
|
|
const float TIME_FACTOR = (PI * 2.0) / (3600.0 * 24.0);
|
|
|
|
const vec3 SKY_TOP = vec3(0.0, 0.3, 1.0);
|
|
const vec3 SKY_BOTTOM = vec3(0.0, 0.05, 0.2);
|
|
|
|
const vec3 SUN_HALO_COLOR = vec3(1.0, 0.8, 0.5);
|
|
const vec3 SUN_SURF_COLOR = vec3(1.0, 0.8, 0.5);
|
|
|
|
float sun_angle_rad = time_of_day * TIME_FACTOR;
|
|
vec3 sun_dir = vec3(sin(sun_angle_rad), 0.0, cos(sun_angle_rad));
|
|
|
|
vec3 sun_halo = pow(max(dot(dir, sun_dir), 0.0), 8.0) * SUN_HALO_COLOR;
|
|
vec3 sun_surf = min(pow(max(dot(dir, sun_dir), 0.0) + 0.01, 16.0), 1.0) * SUN_SURF_COLOR;
|
|
vec3 sun_light = sun_halo + sun_surf;
|
|
|
|
return mix(SKY_BOTTOM, SKY_TOP, (dir.z + 1.0) / 2.0) + sun_light * 0.5;
|
|
}
|
|
|
|
void main() {
|
|
tgt_color = vec4(get_sky_color(normalize(f_pos), time_of_day.x), 1.0);
|
|
}
|