Upgraded max limit for faces in render. Up to now, quads were zbuffered

as triangles, with a tag bit to denote which triangle was which part of
the quad. That was hardcoded bit 0x800000, which allows a maximum of
about 8 million quads...

I've made this a nice #define, set to be 16 times larger. So, now the
facejunkies can go up to 128 Million faces, were it not that this will eat
up a load of memory!
I only have 1 Gig in this machine. A test with 9M vertices and 7.5M quads
eats up 912 MB of memory already. If this becomes a real issue, I know
tricks how to make the vertices 20 bytes smaller, and faces 4 bytes, which
would in the above case save about 200 MB. Not much... but probably worth
the try? A much better method is of course 'bucketing' the renderdata per
tile. It's a spec of the render recode, but not a quicky to add.

Also: bug fix in curve code. There was a short counter still, crashing on
large curves with resol set to 1024 :)

1 files changed, 3 insertions, 0 deletions

diff --git a/source/blender/render/intern/include/renderdatabase.h b/source/blender/render/intern/include/renderdatabase.h
index 317214fb3a6..ced3730e007 100644
--- a/source/blender/render/intern/include/renderdatabase.h
+++ b/source/blender/render/intern/include/renderdatabase.h
@@ -37,6 +37,9 @@ struct HaloRen;
 struct Material;
 struct Render;
 
+#define RE_QUAD_MASK	0x7FFFFFF
+#define RE_QUAD_OFFS	0x8000000
+
 /* render allocates totvert/256 of these nodes, for lookup and quick alloc */
 typedef struct VertTableNode {
 	struct VertRen *vert;