X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?a=blobdiff_plain;f=sdr%2Fwhitted.v.glsl;h=4e187722740283470853bbff3b2bcfb2a0ff0408;hb=f949c0b80e6e55b95f9fd5a2949eb644e8356dba;hp=ad2878e03679c352e1fb12a492a4863d2c8f5be6;hpb=a89e74326444df1da625ad9614919bb7ad2352cb;p=demo_prior

diff --git a/sdr/whitted.v.glsl b/sdr/whitted.v.glsl
index ad2878e..4e18772 100644
--- a/sdr/whitted.v.glsl
+++ b/sdr/whitted.v.glsl
@@ -1,4 +1,6 @@
-#define FOV	0.873	/* about 50 deg */
+#define FOV	0.8
+
+uniform float aspect;
 
 varying vec3 v_rorg, v_rdir;
 
@@ -6,8 +8,10 @@ void main()
 {
 	gl_Position = gl_Vertex;
 
-	float dist = 1.0 / tan(FOV / 2.0);
-	vec3 dir = vec3(gl_MultiTexCoord0.xy * 2.0 - 1.0, dist);
+	vec2 s = vec2(aspect, 1.0);
+
+	float dist = -1.0 / tan(FOV / 2.0);
+	vec3 dir = vec3((gl_MultiTexCoord0.xy * 2.0 - 1.0) * s, dist);
 	v_rdir = gl_NormalMatrix * dir;
 	v_rorg = (gl_ModelViewMatrix * vec4(0.0, 0.0, 0.0, 1.0)).xyz;
 }