[Soc-2007-dev] Friday status report

[Joe Eagar]

Hi.  This week I worked on the tiling cache interface for DSM (I was 
still visiting my parents and my laptop didn't have enough RAM to test 
things very well due to the state of the code at the time).   DSM tiles 
can now be cached; unfortunately, for efficiency they have to be really 
small.  I wrote some code so the DSM map is rendered in >= 256 pixel 
size tiles, then cut down to a smaller size, but however it doesn't work 
so its disabled at the moment.

 I've also fixed the evil bug where everything has to be transparent and 
you can only render in one render tile; however I haven't committed it 
yet because now theres a random crasher somewhere in the code :/  I 
think the problem is the way the different Render instances are juggled 
around in the code, I can't seem to find the code that actually does that.

Brecht also pointed me to this really cool soft shadow paper for 
deep-style shadow maps that I've decided to implement.  It basically 
works by doing stocashtic ray tracing through the shadow map, which 
isn't actually all that difficult (after all, it *is* a 2d-projected 
shadow buffer).

Joe