X-Git-Url: http://git.mutantstargoat.com?a=blobdiff_plain;f=gl_shaders%2Fdefault.f.glsl;h=fe78fbc7e030bc69baa74c3f3f51032effc5fe54;hb=05d269a194496bcef85da78652b947f5bf1c9bcf;hp=98cf032592d0457f40b977eebe4bfead9e4b0fda;hpb=243eb502c5dc70e586a9e81815234069bf623480;p=demo

diff --git a/gl_shaders/default.f.glsl b/gl_shaders/default.f.glsl
index 98cf032..fe78fbc 100644
--- a/gl_shaders/default.f.glsl
+++ b/gl_shaders/default.f.glsl
@@ -1,32 +1,39 @@
 #version 450
 
-uniform sampler2D tex;
+#define SHADING_UNIFORMS 1
 
-uniform vec4 diffuse;
-uniform vec4 specular;
-uniform float shininess;
+layout(binding = 0) uniform sampler2D tex;
+layout(binding = 1) uniform samplerCube dstex;
 
-varying vec3 pos;
-varying vec3 normal;
-varying vec3 ldir;
-varying vec2 tex_coord;
+layout(std140, binding = SHADING_UNIFORMS) uniform fu {
+	vec4 diffuse;
+	vec4 specular;
+	float shininess;
+	float fog_density;
+} s;
 
-out vec4 color;
+const vec3 sky_color = vec3(0.35, 0.5, 0.65);
+// const float fog_density = 0.005;
+
+/* varyings */
+layout(location = 4) in vec3 pos;
+layout(location = 5) in vec2 tex_coord;
+layout(location = 6) in vec3 world_normal;
+
+layout(location = 0) out vec4 color;
 
 void main()
 {
-	vec3 p = normalize(pos);
-	vec3 n = normalize(normal);
-	vec3 l = normalize(ldir);
-
-	vec3 r = normalize(-reflect(l, n));
-	vec3 vdir = normalize(-p);
+	vec4 itexel = textureCube(dstex, normalize(world_normal));
 
-	float cdiff = max(dot(l, n), 0.0);
-	float cspec = pow(max(dot(r, vdir), 0.0), shininess);
+	float dist = -pos.z;
+	float fog = clamp(exp(-s.fog_density * dist), 0.0, 1.0);
 
 	vec4 texel = texture2D(tex, tex_coord);
-	//color.xyz = diffuse.xyz * cdiff * texel.xyz + specular.xyz * cspec;
-	color.xyz = diffuse.xyz * cdiff + specular.xyz * cspec;
+
+	// vec3 object_color = (diffuse.xyz * cdiff * texel.xyz + specular.xyz * cspec) * itexel.xyz;
+	vec3 object_color = s.diffuse.xyz * texel.xyz * itexel.xyz;
+
+	color.xyz = mix(sky_color, object_color, fog);
 	color.w = 1.0;
 }