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| author | Andrey Nazarov <skuller@skuller.net> | 2013-03-18 16:55:22 +0400 |
|---|---|---|
| committer | Andrey Nazarov <skuller@skuller.net> | 2013-03-20 22:04:53 +0400 |
| commit | a8dccaf4c1e274012aca6212dd6efea5522d2dab (patch) | |
| tree | 419a08b6cf1a45105f1ab607a1bb034bd4ca2afd /src/refresh/sw/alias.c | |
| parent | 14780fed28b9af75f7a2263b04eb5411d5250e98 (diff) | |
Simplify, move math functions.
Diffstat (limited to 'src/refresh/sw/alias.c')
| -rw-r--r-- | src/refresh/sw/alias.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/refresh/sw/alias.c b/src/refresh/sw/alias.c index dad1748..1a0a544 100644 --- a/src/refresh/sw/alias.c +++ b/src/refresh/sw/alias.c @@ -364,6 +364,27 @@ static void R_AliasPreparePoints(void) } } +/* +================ +R_ConcatTransforms +================ +*/ +static void R_ConcatTransforms(float in1[3][4], float in2[3][4], float out[3][4]) +{ + out[0][0] = in1[0][0] * in2[0][0] + in1[0][1] * in2[1][0] + in1[0][2] * in2[2][0]; + out[0][1] = in1[0][0] * in2[0][1] + in1[0][1] * in2[1][1] + in1[0][2] * in2[2][1]; + out[0][2] = in1[0][0] * in2[0][2] + in1[0][1] * in2[1][2] + in1[0][2] * in2[2][2]; + out[0][3] = in1[0][0] * in2[0][3] + in1[0][1] * in2[1][3] + in1[0][2] * in2[2][3] + in1[0][3]; + out[1][0] = in1[1][0] * in2[0][0] + in1[1][1] * in2[1][0] + in1[1][2] * in2[2][0]; + out[1][1] = in1[1][0] * in2[0][1] + in1[1][1] * in2[1][1] + in1[1][2] * in2[2][1]; + out[1][2] = in1[1][0] * in2[0][2] + in1[1][1] * in2[1][2] + in1[1][2] * in2[2][2]; + out[1][3] = in1[1][0] * in2[0][3] + in1[1][1] * in2[1][3] + in1[1][2] * in2[2][3] + in1[1][3]; + out[2][0] = in1[2][0] * in2[0][0] + in1[2][1] * in2[1][0] + in1[2][2] * in2[2][0]; + out[2][1] = in1[2][0] * in2[0][1] + in1[2][1] * in2[1][1] + in1[2][2] * in2[2][1]; + out[2][2] = in1[2][0] * in2[0][2] + in1[2][1] * in2[1][2] + in1[2][2] * in2[2][2]; + out[2][3] = in1[2][0] * in2[0][3] + in1[2][1] * in2[1][3] + in1[2][2] * in2[2][3] + in1[2][3]; +} + /* ================ |