Hi All,
I've been away for a while, so firstly - great work on the shaders!
I've copied a small patch the urban shader below, to take into account
the interpolation in the texture2D call.
This means that the resulting buildings have vertical walls, rather
than sloping, which looked a bit sci-fi to me :)
-Stuart Buchanan (using gmail as yahoo mail is having problems with
sourceforge mailing lists)
Index: urban.frag
===================================================================
RCS file: /var/cvs/FlightGear-0.9/data/Shaders/urban.frag,v
retrieving revision 1.3
diff -u -p -r1.3 urban.frag
--- urban.frag 23 Mar 2010 22:20:24 -0000 1.3
+++ urban.frag 25 Mar 2010 19:20:17 -0000
@@ -33,6 +33,7 @@ float ray_intersect(sampler2D reliefMap,
{
depth += size;
float t = texture2D(reliefMap, dp + ds * depth).a;
+ t = step(0.5, t);
if(best_depth > 0.996)
if(depth >= t)
best_depth = depth;
@@ -45,6 +46,7 @@ float ray_intersect(sampler2D reliefMap,
{
size *= 0.5;
float t = texture2D(reliefMap, dp + ds * depth).a;
+ t = step(0.5, t);
if(depth >= t)
{
best_depth = depth;
------------------------------------------------------------------------------
Download Intel® Parallel Studio Eval
Try the new software tools for yourself. Speed compiling, find bugs
proactively, and fine-tune applications for parallel performance.
See why Intel Parallel Studio got high marks during beta.
http://p.sf.net/sfu/intel-sw-dev
_______________________________________________
Flightgear-devel mailing list
Flightgear-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/flightgear-devel
