shadows done

shaders/shadow.glsl

@@ -1,6 +1,8 @@
 // vert //
 
 flat out uint object_flags;
+out float distance;
+out vec4 pos;
 
 void main(void) {
 	object_flags = qgl_ObjectFlags;
@@ -8,13 +10,16 @@ void main(void) {
 		return;
 	qgl_MaterialIndex = qgl_Material;
 	qgl_FragTexture = qgl_getFragTexture();
-	gl_Position = qgl_ftransform();
+	pos = qgl_ftransform();
+	gl_Position = pos;
 }
 
 
 // frag //
 
 flat in uint object_flags;
+in float distance;
+in vec4 pos;
 
 float z_near = 0.1f;
 const float _pe = 2.4e-7;
@@ -27,6 +32,13 @@ void main(void) {
 		discard;
 
 	float z = gl_FragCoord.z;
+	z = z + z - 1;
 	z = ((_pe - 2.) * z_near) / (z + z + _pe - 2.); // infinite depth
-	qgl_FragData[0].r = z;
+	
+#ifdef OMNI
+	gl_FragDepth = 1 - 1 / (length(pos.xyz) - z_near + 1);
+#else
+	gl_FragDepth = 1 - 1 / (pos.z - z_near + 1);
+#endif
+	//qgl_FragData[0].r = length(vec3(pos.xy, z));//1/gl_FragCoord.w;
 }