controls for fog to select params

[demo] / gl_shaders / default.f.glsl

diff --git a/gl_shaders/default.f.glsl b/gl_shaders/default.f.glsl
index 17d4353..88f0d69 100644 (file)
--- a/gl_shaders/default.f.glsl
+++ b/gl_shaders/default.f.glsl
@@ -11,7 +11,8 @@ varying vec3 normal;
 varying vec3 ldir;
 varying vec2 tex_coord;
 
-const float fog_density = 0.005;
+// const float fog_density = 0.005;
+uniform float fog_density;
 const vec4 sky_color = vec4(0.35, 0.5, 0.65, 1.0);
 
 out vec4 color;