X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=shaderlib%2Fsinglepass.glsl;fp=shaderlib%2Fsinglepass.glsl;h=a80ca339147c028f3200fcbd2e8a2d792819f187;hb=0c1e15e36a46bada35b905b2bdd35f6f48ce7cb0;hp=a1062fed7125bd2f69886e33c3d9a61bec25b7a3;hpb=6109322ffc5dec1a777807fcbefacafe94d1d5eb;p=libs%2Fgl.git

diff --git a/shaderlib/singlepass.glsl b/shaderlib/singlepass.glsl
index a1062fed..a80ca339 100644
--- a/shaderlib/singlepass.glsl
+++ b/shaderlib/singlepass.glsl
@@ -43,7 +43,7 @@ uniform Lighting
 	LightSourceParameters light_sources[1];
 	vec4 ambient_color;
 	vec4 sky_color;
-	vec3 eye_sky_dir;
+	vec3 eye_zenith_dir;
 	float horizon_limit;
 	vec4 fog_color;
 	float fog_density;
@@ -113,7 +113,7 @@ void singlepass_transform_and_lighting()
 		ldir = ldir*eye_tbn_matrix;
 	out vec3 light_dir = ldir;
 
-	out vec3 tbn_sky_dir = eye_sky_dir*eye_tbn_matrix;
+	out vec3 tbn_zenith_dir = eye_zenith_dir*eye_tbn_matrix;
 	out vec3 shadow_coord = (shd_eye_matrix*eye_vertex).xyz;
 	out float fog_coord = eye_vertex.z;
 
@@ -156,12 +156,12 @@ vec3 singlepass_lighting()
 	vec3 ambient_light = ambient_color.rgb;
 	if(use_sky)
 	{
-		vec3 sky_dir;
+		vec3 zenith_dir;
 		if(use_normal_map)
-			sky_dir = tbn_sky_dir;
+			zenith_dir = tbn_zenith_dir;
 		else
-			sky_dir = eye_sky_dir;
-		float skylight_intensity = dot(normal, sky_dir)*0.5+0.5;
+			zenith_dir = eye_zenith_dir;
+		float skylight_intensity = dot(normal, zenith_dir)*0.5+0.5;
 		ambient_light += skylight_intensity*sky_color.rgb;
 	}