# HG changeset patch
# User John Tsiombikas <nuclear@member.fsf.org>
# Date 1357691825 -7200
# Node ID c45c7a1f7d9daa41fe1014c404e315d771ece3b2
# Parent  1d5dc834d40309d606496f4ba2df1999602d40d7
foo

diff -r 1d5dc834d403 -r c45c7a1f7d9d sdr/dither.p.glsl
--- a/sdr/dither.p.glsl	Tue Jan 08 14:19:06 2013 +0200
+++ b/sdr/dither.p.glsl	Wed Jan 09 02:37:05 2013 +0200
@@ -7,6 +7,8 @@
 
 	vec4 pixel = texture2D(framebuf, gl_TexCoord[0].xy);
 	float lum = dot(pixel.xyz, vec3(0.2126, 0.7152, 0.0722));
+	// gamma correct luminance?
+	//lum = pow(lum, 1.0 / 2.2);
 	float coord_shift = floor(lum * levels) / levels;
 
 	vec2 dsz2 = vec2(float(dither_size), float(dither_size));
diff -r 1d5dc834d403 -r c45c7a1f7d9d src/udg.cc
--- a/src/udg.cc	Tue Jan 08 14:19:06 2013 +0200
+++ b/src/udg.cc	Wed Jan 09 02:37:05 2013 +0200
@@ -13,7 +13,7 @@
 #include "sdr.h"
 #include "dither_matrix.h"
 
-#define DITHER_SZ		4
+#define DITHER_SZ		8
 #define DITHER_LEVELS	16
 
 #if DITHER_SZ == 4
@@ -165,6 +165,12 @@
 	glRotatef(cam_phi, 1, 0, 0);
 	glRotatef(cam_theta, 0, 1, 0);
 
+	const float blue[] = {0.4, 0.45, 1.0, 1};
+	const float white[] = {1, 1, 1, 1};
+	glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, blue);
+	glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, white);
+	glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, 80.0);
+
 	glFrontFace(GL_CW);
 	glutSolidTeapot(1.0);
 	glFrontFace(GL_CCW);