nuclear@0: /* vi: set ft=glsl */
nuclear@0: uniform sampler2DShadow shadowmap;
nuclear@0: 
nuclear@0: varying vec3 vdir, ldir, normal;
nuclear@0: varying vec4 shadow_tc;
nuclear@0: 
nuclear@0: #define KD gl_FrontMaterial.diffuse.rgb
nuclear@0: #define KS gl_FrontMaterial.specular.rgb
nuclear@0: #define SPOW gl_FrontMaterial.shininess
nuclear@0: 
nuclear@0: void main()
nuclear@0: {
nuclear@0: 	float shadow = shadow2DProj(shadowmap, shadow_tc).x;
nuclear@0: 
nuclear@0: 	vec3 n = normalize(normal);
nuclear@0: 	vec3 v = normalize(vdir);
nuclear@0: 	vec3 l = normalize(ldir);
nuclear@0: 	vec3 h = normalize(l + v);
nuclear@0: 
nuclear@0: 	float ndotl = max(dot(n, l), 0.0);
nuclear@0: 	float ndoth = max(dot(n, h), 0.0);
nuclear@0: 
nuclear@0: 	vec3 diffuse = KD * gl_LightSource[0].diffuse.rgb * ndotl;
nuclear@0: 	vec3 specular = KS * gl_LightSource[0].specular.rgb * pow(ndoth, SPOW);
nuclear@0: 
nuclear@0: 	vec3 ambient = gl_LightModel.ambient.rgb * KD;
nuclear@0: 	gl_FragColor.rgb = ambient + (diffuse + specular) * shadow;
nuclear@0: 	gl_FragColor.a = gl_FrontMaterial.diffuse.a;
nuclear@0: }