Skip to content

Instantly share code, notes, and snippets.

@cjxgm

cjxgm/game.glsl

Last active December 3, 2018 14:59
Show Gist options
  • Save cjxgm/a0adeb28da7f61caf3d12cb3569c9fea to your computer and use it in GitHub Desktop.
Save cjxgm/a0adeb28da7f61caf3d12cb3569c9fea to your computer and use it in GitHub Desktop.
Download ZIP
Play Factorio with more saturated color
Raw
game.glsl
#version 120
// path: data/core/graphics/shaders/game.glsl
uniform sampler2D gameview; // "diffuse" texture
uniform sampler2D lightmap;
uniform vec4 darkness_data;
uniform vec4 nv_color;
uniform vec4 nv_desaturation_params;
uniform vec4 nv_light_params;
float nv_intensity = darkness_data.x;
float darkness = darkness_data.y;
float timer = darkness_data.z;
bool render_darkness = darkness_data.w > 0.0;
bool use_nightvision = nv_intensity > 0.0;
vec3 saturation(vec3 color, float sat)
{
const vec3 luma_terms = vec3(0.299, 0.587, 0.114);
const vec3 gamma_to_linear_terms = vec3(2.2);
const vec3 linear_to_gamma_terms = vec3(1.0 / 2.2);
vec3 linear_color = pow(color, gamma_to_linear_terms);
vec3 luma = vec3(dot(luma_terms, linear_color));
vec3 linear_saturated = luma + (linear_color - luma) * vec3(sat);
return clamp(pow(linear_saturated, linear_to_gamma_terms), vec3(0.0), vec3(1.0));
}
void main()
{
vec2 uv = gl_TexCoord[0].xy;
vec4 color = texture2D(gameview, uv);
// Larger: more saturated
// Smaller: less saturated
// = 1.0: no saturation change
// < 1.0: desaturated
// = 0.0: grayscale
const float sat = 1.3; // <-- change this value.
color.rgb = saturation(color.rgb, sat);
if (!render_darkness)
{
gl_FragColor = color;
return;
}
vec4 light = texture2D(lightmap, uv);
if (use_nightvision)
{
float luminance = dot(color.rgb, vec3(0.299, 0.587, 0.114));
float lightLuminance = max(light.r, max(light.g, light.b));
vec3 grayscale = vec3(luminance * nv_intensity); // * nv_color.a * nv_color.rgb;
float lightIntensity = smoothstep(nv_desaturation_params.x, nv_desaturation_params.y, lightLuminance) * nv_desaturation_params.z + nv_desaturation_params.w;
if (lightLuminance > 0.0)
{
// Tint image by color of light divaded by light luminance to not make image darker
color.rgb = color.rgb * ((light.rgb / lightLuminance) * 0.75 + 0.25);
}
color.rgb = mix(grayscale, color.rgb, lightIntensity);
lightIntensity = smoothstep(nv_light_params.x, nv_light_params.y, lightLuminance) * nv_light_params.z + nv_light_params.w;
gl_FragColor = vec4(color.rgb * lightIntensity , color.a);
}
else
{
color.rgb = color.rgb * light.rgb;
gl_FragColor = vec4(color.rgb, color.a);
}
}
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment