X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=builtin_data%2F_sky.glsl;fp=builtin_data%2F_sky.glsl;h=81f9d16398693ba16018b9f17ebe9bfbd04b780b;hp=3493b5a48e92711bcf9a0ceaa7d53871bb753b35;hb=a5f76ec38d682108e8c655a25b32b88e19bd8783;hpb=a313d4a1050815d987f855cafaea046dba158625

diff --git a/builtin_data/_sky.glsl b/builtin_data/_sky.glsl
index 3493b5a4..81f9d163 100644
--- a/builtin_data/_sky.glsl
+++ b/builtin_data/_sky.glsl
@@ -123,11 +123,15 @@ OpticalPathInfo raymarch_path(float start_height, vec3 look_dir)
 
 		AtmosphericEvents ev = calculate_events(height);
 		vec3 transmittance = exp(-path_extinction);
-		vec3 in_transmittance = texture(transmittance_lookup, vec2(sqrt(height/atmosphere_thickness), light_z)).rgb;
-		vec3 in_luminance = (ev.rayleigh_scatter*p_rayleigh+ev.mie_scatter*p_mie)*step_size;
-		if(i==n_steps && ground_t>0.0)
-			in_luminance += ground_albedo*light_z/PI;
-		path_luminance += transmittance*in_transmittance*in_luminance;
+		float in_ground_t = ray_sphere_intersect(pos+light_dir, light_dir, planet_center, planet_radius);
+		if(in_ground_t<0.0)
+		{
+			vec3 in_transmittance = texture(transmittance_lookup, vec2(sqrt(height/atmosphere_thickness), light_z)).rgb;
+			vec3 in_luminance = (ev.rayleigh_scatter*p_rayleigh+ev.mie_scatter*p_mie)*step_size;
+			if(i==n_steps && ground_t>0.0 && light_z>0.0)
+				in_luminance += ground_albedo*light_z/PI;
+			path_luminance += transmittance*in_transmittance*in_luminance;
+		}
 
 		path_extinction += total_extinction(ev)*step_size;
 		pos += look_dir*step_size;