From: John Tsiombikas <nuclear@member.fsf.org>
Date: Wed, 9 Dec 2020 00:49:31 +0000 (+0200)
Subject: whitted: fixed the transparent shadows with a nasty hack
X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=demo_prior;a=commitdiff_plain;h=f949c0b80e6e55b95f9fd5a2949eb644e8356dba

whitted: fixed the transparent shadows with a nasty hack
---

diff --git a/sdr/whitted.p.glsl b/sdr/whitted.p.glsl
index 80b6bc9..3fa4308 100644
--- a/sdr/whitted.p.glsl
+++ b/sdr/whitted.p.glsl
@@ -143,7 +143,7 @@ vec3 shade(in vec3 ro, in vec3 rd, in HitPoint hit)
 	vec3 norm = faceforward(hit.norm, rd, hit.norm);
 	vec3 ldir = light_pos - hit.pos;
 
-	vec3 amb = hit.mtl.diffuse * 0.02;
+	vec3 amb = hit.mtl.diffuse * 0.01;
 
 	isect_scene(hit.pos + norm * 0.01, ldir, shadow_hit);
 
@@ -192,7 +192,7 @@ bool isect_scene(in vec3 ro, in vec3 rd, out HitPoint hit_res)
 			nearest.mtl = mtl_glass;
 		}
 		if(hit.dist < 1.0) {
-			opacity *= mtl_glass.refr;
+			opacity *= mtl_glass.refr * 0.25;	// XXX hack quarter the refr, fresnel would reduce it drastically
 		}
 	}