nuclear@60: /* multipass renderer shader 2: RGB: diffuse color, A: shininess str. */
nuclear@60: 
nuclear@60: uniform sampler2D tex_dif;
nuclear@60: 
nuclear@60: varying vec3 pos, norm, tang;
nuclear@60: 
nuclear@60: const float fog_start = 3.0;
nuclear@60: const float fog_end = 6.0;
nuclear@60: 
nuclear@60: void main()
nuclear@60: {
nuclear@60: 	float fog = clamp((fog_end + pos.z) / (fog_end - fog_start), 0.0, 1.0);
nuclear@60: 
nuclear@60: 	vec4 texel = texture2D(tex_dif, gl_TexCoord[0].st);
nuclear@60: 	vec3 diffuse = fog * (gl_FrontMaterial.diffuse * texel).xyz;
nuclear@60: 	vec3 spec = fog * gl_FrontMaterial.specular.xyz;
nuclear@60: 	float sstr = (spec.x + spec.y + spec.z) / 3.0;
nuclear@60: 
nuclear@60: 	gl_FragColor = vec4(diffuse, sstr);
nuclear@60: }