X-Git-Url: http://git.mutantstargoat.com?a=blobdiff_plain;f=gl_shaders%2Fdefault.f.glsl;h=ad4b77ac2731e7ab3e669ebf2673c4e4386d6f8e;hb=8d1aef17df1bf15491ce4fd35242adcd58a9c411;hp=388ba76a607608108f07ad2a31ebf4b6f5d74345;hpb=d03d86eb8489e7ab4c5460cea5ee265b0c1ee487;p=demo

diff --git a/gl_shaders/default.f.glsl b/gl_shaders/default.f.glsl
index 388ba76..ad4b77a 100644
--- a/gl_shaders/default.f.glsl
+++ b/gl_shaders/default.f.glsl
@@ -1,21 +1,29 @@
 #version 450
 
 uniform sampler2D tex;
+uniform samplerCube dstex;
 
 uniform vec4 diffuse;
 uniform vec4 specular;
 uniform float shininess;
 
 varying vec3 pos;
-varying vec3 normal;
-varying vec3 ldir;
-varying vec3 tex_coord;
+// varying vec3 normal;
+// varying vec3 ldir;
+varying vec2 tex_coord;
+varying vec3 world_normal;
 
-layout(location = 0) out vec4 color;
+// const float fog_density = 0.005;
+uniform float fog_density;
+const vec3 sky_color = vec3(0.35, 0.5, 0.65);
+
+out vec4 color;
 
 void main()
 {
-	vec3 p = normalize(pos);
+	vec4 itexel = textureCube(dstex, normalize(world_normal));
+
+/*	vec3 p = normalize(pos); // view space dir
 	vec3 n = normalize(normal);
 	vec3 l = normalize(ldir);
 
@@ -23,7 +31,16 @@ void main()
 	vec3 vdir = normalize(-p);
 
 	float cdiff = max(dot(l, n), 0.0);
-	float cspec = pow(max(dot(r, vdir), 0.0), shininess);
+	float cspec = pow(max(dot(r, vdir), 0.0), shininess); */
+
+	float dist = -pos.z;
+	float fog = clamp(exp(-fog_density * dist), 0.0, 1.0);
+
+	vec4 texel = texture2D(tex, tex_coord);
+
+	// vec3 object_color = (diffuse.xyz * cdiff * texel.xyz + specular.xyz * cspec) * itexel.xyz;
+	vec3 object_color = diffuse.xyz * texel.xyz * itexel.xyz;
 
-	color = diffuse * cdiff * texture2D(tex, tex_coord.xy) + specular * cspec;
+	color.xyz = mix(sky_color, object_color, fog);
+	color.w = 1.0;
 }