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57 commits

Author SHA1 Message Date
Bill Currie
6f484ee757 Add support and tests for 3x3 matrices. 2012-08-18 16:29:57 +09:00
Bill Currie
b5add680f7 Add Mat4as3MultVec. 
to transform a vertex without the translation (eg, for normals) without
having to have separate matrices.
 2012-05-20 15:20:18 +09:00
Bill Currie
4ba69b511b Make quat_origin the right type. 
It's quat_t, not vec3_t :P.
 2012-05-15 21:08:46 +09:00
Bill Currie
9f253454e4 Implement and test Mat4Inverse(). 2012-05-15 21:08:44 +09:00
Bill Currie
fa6270322f Make Mat4Decompose a little more intuitive. 
Params are now in application order (good thing not much code uses it yet).
 2012-05-15 21:08:44 +09:00
Bill Currie
de131c18ad Add VectorShear and really test Mat4Decompose. 
And the tests really exercised VectorShear (first attempt had things
messed up when more than one shear value was non-zero). Also,
Mat4Decompose wasn't orthogonalizing the z axis row. Oops. Anyway,
Mat4Decompose is now known to work well, and the usage of its output is
understood :)
 2012-05-15 21:08:44 +09:00
Bill Currie
8cea6b0a1e Fix a scaling snafu in Mat4Decompose. 
Found when checking how rotation affects non-uniform scaling (haven't
written proper tests yet: need to figure out how).
 2012-05-15 21:08:44 +09:00
Bill Currie
82abd5e426 More matrix tests. 2012-05-15 21:08:44 +09:00
Bill Currie
730f9668bd Add support for mat4 * vec3 2012-05-15 21:08:44 +09:00
Bill Currie
50af8a562e Add tests for matrix decomposition and fix the bugs. 2012-05-15 21:08:44 +09:00
Bill Currie
215d2e9747 Add a function to decompose a matrix. 
The function gives rotation(quaternion), scale, shear, and translation (all
three as vectors), shear is (XY, XZ, YZ).
 2012-05-15 21:08:44 +09:00
Bill Currie
8791b35e55 Add support for half floats. 
iqm and OpenGL use them, so they might come in handy. The tests use values
from wikipedia and a couple extra.
 2012-04-26 20:55:11 +09:00
Bill Currie
efaef89c5f Add a shortcut function for quaterion/vector multiplication. 
I got the idea from blender when I discovered by accident that quat * vect
produces the same result as quat * qvect * quat* and looked up the code to
check what was going on. While matrix/vector multiplication still beats the
pants off quaternion/vector multiplication, QuatMultVec is a slight
optimization over quat * qvect * quat* (17+,24* vs 24+,32*, plus no need to
to generate quat*).
 2012-04-26 09:48:08 +09:00
Bill Currie
bc1b483525 Nuke the rcsid stuff. 
It's pretty useless in git.
 2012-04-22 10:56:32 +09:00
Bill Currie
cbd13ac54e Implement QuatExp and fix up QuatBlend's param names. 2012-01-12 21:22:06 +09:00
Bill Currie
ea2ae1436c Fix some bugs in the new matrix functions/macros. 2011-12-31 13:20:31 +09:00
Bill Currie
35bf957d08 Add a 4x4 matrix type and some functions for it. 2011-12-30 20:11:53 +09:00
Bill Currie
91e65b6c80 Rename mplane_t to plane_t and clean up the mess. 
I got rather tired of there being multiple definitions of mostly compatible
plane types (and I need a common type anyway). dplane_t still exists for
now because I want to be careful when messing with the actual bsp format.
 2011-11-28 20:54:34 +09:00
Bill Currie
12e238f806 Add a function to convert quake angles to a quaternion. 
The test works by comparing the result of AngleVectors with forward,
right, and up vectors rotated by the quaternion resulting from AngleQuat.
 2011-09-04 09:58:12 +09:00
Bill Currie
fe3cdbcf5a fix a snafu in quattomat 2011-09-04 09:58:12 +09:00
Bill Currie
eb205d73fd Add a function to convert a quaternion to a rotation matrix. 2011-09-04 09:58:12 +09:00
Bill Currie
33db650161 Add QuatInverse to calculate 1/q. 
There's still no direct quaternion division because I don't know if the
definition of q1/q2 is (1/q2)*q1 or q1*(1/q2) (it does make a difference).
 2011-01-18 22:22:18 +09:00
Bill Currie
13503198e5 Add quat_origin convenience constant. 
Same as vec3_origin in that all elements are zero.
 2011-01-11 08:41:40 +09:00
Bill Currie
99c0954b47 the big dso visibility patch :). Sure, we have to have unique names for static builds, but with controlled visibitly we should get faster program loads (although this isn't C++, so it's not as bad) and complex plugins are cleaner. 2007-03-10 12:00:59 +00:00
Bill Currie
3fb03fc2be hah, should have been using __attribute__((used)) all that time (rather 
than __attribute__((unused))). fixes the missing console in -x11
 2005-08-04 15:27:09 +00:00
Bill Currie
4c4f40f137 fix a few bugs. basics seem to be working 2004-04-08 05:13:24 +00:00
Bill Currie
39685d0c63 more readability and add the quaternion functions 2004-04-07 18:01:45 +00:00
Bill Currie
19ef80c555 this should fix static win32 builds 2004-01-21 00:15:35 +00:00
Bill Currie
7ead5a91f8 don't let gcc automaticly inline functions but make gcc inline bigger 
functions when told to. also make gcc warn if it can't inline a function.

Explicitly inline several functions (including moving VectorNormalize to
mathlib.h so it /can/ be) resulting in a 5.5% speedup for spam2 (88 to 92
fps)
 2003-08-11 06:05:07 +00:00
Bill Currie
6a94607d9d rename VectorMA to VectorMultAdd, add VectorMultSub and use it in a few 
places. Not certain how much speed difference it makes :/
 2003-08-08 15:25:53 +00:00
Ragnvald Maartmann-Moe IV
bf18436ad5 Whitespace. 2003-03-21 00:51:57 +00:00
Bill Currie
72d1343735 add some comments about the coordinate systems used in AngleVectors 2003-03-10 20:44:50 +00:00
Bill Currie
761a7546dd re-arrange things so __attribute__ and __builtin_expect are properly 
autoconfiscated so rcsid will continue to work with gcc 3.3
 2003-01-15 15:31:36 +00:00
Bill Currie
71196fedf6 make gcc more anal about prototypes, string constants and function 
visibility (ie, global functions must have a prototype)
 2003-01-06 18:28:13 +00:00
Bill Currie
d25ee82838 provide a tighter accuracy (but slower) _VectorNormalize for the tools 2002-09-25 21:35:49 +00:00
Bill Currie
56843557f6 make _VectorCompare use EQUAL_EPSILON (VectorCompare is still the fast 
macro) and use it instead of VectorCompare in the map tools. This (and, it
seems, RINT) fixes qfbsp on spc. Also, jump /all/ entities that get hit
by the filler in qfbsp
 2002-09-20 17:02:53 +00:00
Ragnvald Maartmann-Moe IV
d757c10f07 Only need one define for R_Cull* 2002-08-23 20:46:19 +00:00
Ragnvald Maartmann-Moe IV
6e8bd2aeb0 defines and ifdefs for R_CullSphere, just like R_CullBox. 2002-08-23 07:04:29 +00:00
Ragnvald Maartmann-Moe IV
c91f1a2aea Rename Length to VectorLength. 2002-08-20 02:22:40 +00:00
Ragnvald Maartmann-Moe IV
fd1ded5c4a Add r_nearclip and r_particles_nearclip. Also put some limits on r_farclip. And fix id's insane max and min float, and some minor improvements in frustum setup in GL. 2002-06-26 22:20:12 +00:00
Bill Currie
44dcf74627 strip the \n from all(?) of the Sys_Error calls (Sys_Error itself will be 
adding \n).
 2002-05-14 06:12:29 +00:00
Bill Currie
630aa80dc4 various cleanups including TODOs and FIXMEs and rewrite va to use a dynamic 
buffer.
 2002-01-12 04:34:53 +00:00
Bill Currie
36bb62c3c5 rewrite CrossProduct so memory is accessed more linearly. should provide 
a tiny speedup for servers and clipped skyboxes
 2002-01-04 06:13:50 +00:00
Bill Currie
013f503738 start getting const-correct on vec3_t params 2002-01-03 05:29:38 +00:00
Bill Currie
21686adf10 remove redundant prototype 2001-12-03 23:40:07 +00:00
Ragnvald Maartmann-Moe IV
7ea1051b9a Code cleanups. 2001-10-30 19:55:34 +00:00
Bill Currie
b1f4a778f9 the rcsid commit from hell }:> 2001-09-28 06:26:31 +00:00
Ragnvald Maartmann-Moe IV
fb7918d4f8 Optimize DEG2RAD a little, plus some whitespace. 2001-09-10 04:20:27 +00:00
Bill Currie
0d55476711 make VectorSubtract and VectorCompare macros and clean up the readability 
of R_DrawParticles
 2001-08-29 20:19:54 +00:00
Ragnvald Maartmann-Moe IV
edcf092b05 Whitespace, dammit. Oh, and removal of several orphaned comments. Comments in front of functions suck. 2001-08-22 22:03:16 +00:00