X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=builtin_data%2F_sky_backdrop.glsl;h=fa28663c65282b573950c4d4249a208a8fe5c49b;hb=e92de029768eef5f0fd744329e589161b46d0762;hp=8d9f4ab91915f435518a4459196ad6665a0e2caf;hpb=82282de52e8e8f3bbafefaf92bf76f53f2c2495e;p=libs%2Fgl.git

diff --git a/builtin_data/_sky_backdrop.glsl b/builtin_data/_sky_backdrop.glsl
index 8d9f4ab9..fa28663c 100644
--- a/builtin_data/_sky_backdrop.glsl
+++ b/builtin_data/_sky_backdrop.glsl
@@ -7,10 +7,9 @@ uniform sampler2D distant;
 void main()
 {
 	gl_Position = vec4(vertex.xy, 1.0, 1.0);
-	mat4 inv_projection = inverse(clip_eye_matrix);
-	out vec4 view_dir = inv_projection*vec4(vertex.xy, -1.0, 1.0);
+	out vec4 view_dir = eye_clip_matrix*vec4(vertex.xy, -1.0, 1.0);
 	view_dir /= view_dir.w;
-	view_dir = inverse(eye_world_matrix)*vec4(view_dir.xyz, 0.0);
+	view_dir = world_eye_matrix*vec4(view_dir.xyz, 0.0);
 }
 
 #pragma MSP stage(fragment)
@@ -18,5 +17,5 @@ void main()
 {
 	vec3 nview = normalize(view_dir.xyz);
 	float azimuth = atan(nview.y, nview.x);
-	frag_color = texture(distant, vec2(azimuth/(2*pi), nview.z*0.5+0.5))*light_color;
+	frag_color = texture(distant, vec2(azimuth/(2*PI), nview.z*0.5+0.5))*light_color;
 }