X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=builtin_data%2F_sky_backdrop.glsl;h=420f0ed5ff1ce268a7a2a2480d0b87e558047a1b;hb=9208e0ff263a287e456e082a4a8b8fd0bbd41f9e;hp=0aac6c8080553da91a246b18f7dd6d010be11e5a;hpb=06d83c11e10208478487dea864ddd7822630c391;p=libs%2Fgl.git

diff --git a/builtin_data/_sky_backdrop.glsl b/builtin_data/_sky_backdrop.glsl
index 0aac6c80..420f0ed5 100644
--- a/builtin_data/_sky_backdrop.glsl
+++ b/builtin_data/_sky_backdrop.glsl
@@ -7,7 +7,7 @@ uniform sampler2D distant;
 void main()
 {
 	gl_Position = vec4(vertex.xy, 1.0, 1.0);
-	mat4 inv_projection = inverse(projection_matrix);
+	mat4 inv_projection = inverse(clip_eye_matrix);
 	out vec4 view_dir = inv_projection*vec4(vertex.xy, -1.0, 1.0);
 	view_dir /= view_dir.w;
 	view_dir = inverse(eye_world_matrix)*vec4(view_dir.xyz, 0.0);
@@ -18,5 +18,5 @@ 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;
 }