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qbsp: tweak T_EPSILON to be greater than EQUAL_EPSILON 

The way wedge_t and wvert_t were hashed and compared was resulting in
FixFaceEdges being able to get stuck in a loop adding verticies to a face
if two consecutive verticies were very close to EQUAL_EPSILON apart.
Avoid these problems by tweaking T_EPSILON to be slightly wider than
EQUAL_EPSILON.

Signed-off-by: Kevin Shanahan <kmshanah@disenchant.net>
This commit is contained in:
Kevin Shanahan 2013-06-23 14:22:13 +09:30
parent 6d6a787185
commit ff9bb3eab0
1 changed files with 4 additions and 3 deletions
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7
qbsp/qbsp.h
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@ -114,8 +114,9 @@
/*
* The quality of the bsp output is highly sensitive to these epsilon values.
* Notes:
* - CONTINUOUS_EPSILON needs to be slightly larger than EQUAL_EPSILON,
* otherwise this messes with t-junctions
* - T-junction calculations are sensitive to errors and need the various
* epsilons to be such that EQUAL_EPSILON < T_EPSILON < CONTINUOUS_EPSILON.
* ( TODO: re-check if CONTINUOUS_EPSILON is still directly related )
*/
#define NORMAL_EPSILON 0.000001
#define ANGLEEPSILON 0.000001
@ -123,9 +124,9 @@
#define ZERO_EPSILON 0.0001
#define DISTEPSILON 0.0001
#define POINT_EPSILON 0.0001
#define T_EPSILON 0.0001
#define ON_EPSILON 0.0001
#define EQUAL_EPSILON 0.0001
#define T_EPSILON 0.0002
#define CONTINUOUS_EPSILON 0.0005
#define BOGUS_RANGE 18000