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simplify normalization

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This commit is contained in:
Rudolf Polzer 2011-04-16 20:12:47 +02:00
parent 7de098e11d
commit 4c7c9edf23
1 changed files with 4 additions and 4 deletions
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8
misc/tools/fft-normalmap-to-heightmap.c
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@ -85,10 +85,10 @@ void nmap_to_hmap(unsigned char *map, const unsigned char *refmap, int w, int h,
double v = nx * nx + ny * ny + nz * nz;
if(v > 0)
{
v = sqrt(v);
nx /= v;
ny /= v;
nz /= v;
v = 1/sqrt(v);
nx *= v;
ny *= v;
nz *= v;
map[(w*y+x)*4+2] = floor(nx * 127.5 + 128);
map[(w*y+x)*4+1] = floor(ny * 127.5 + 128);
map[(w*y+x)*4+0] = floor(nz * 127.5 + 128);