From: David Gow <david@ingeniumdigital.com>
Date: Wed, 13 Aug 2014 08:05:38 +0000 (+0800)
Subject: I am an idiot: the quadtree code is now fixed.
X-Git-Url: https://git.ucc.asn.au/?p=ipdf%2Fcode.git;a=commitdiff_plain;h=04ab3830f779fdb92697a6b5101214ea462b765a;hp=04ab3830f779fdb92697a6b5101214ea462b765a

I am an idiot: the quadtree code is now fixed.

tl;dr: needed more * by 2.

iab;wtd*: The index buffers on the GPU contain _two_ elements per object,
one for the top left of the object's bounding box, one for the bottom-right.
We were taking that into account when computing the number of indices to give
the DrawElements() call, but not when calculating the offset into the buffer.

Oops.

*: I am bored; want tedious detail
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