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Fix T43696: Baking tearing normals 

Patch D1207 by @chrisr
This commit is contained in:
Campbell Barton 2015-04-06 15:53:06 +10:00
parent 986972701e
commit 8cc475c40b
Notes: blender-bot 2023-02-14 09:28:34 +01:00 
Referenced by issue #43696, Baking tearing normals (Both cycles and BI)
1 changed files with 7 additions and 9 deletions
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16
source/blender/render/intern/source/zbuf.c
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@ -1513,7 +1513,7 @@ void zspan_scanconvert(ZSpan *zspan, void *handle, float *v1, float *v2, float *
float x0, y0, x1, y1, x2, y2, z0, z1, z2;
float u, v, uxd, uyd, vxd, vyd, uy0, vy0, xx1;
const float *span1, *span2;
int x, y, sn1, sn2, rectx= zspan->rectx, my0, my2;
int i, j, x, y, sn1, sn2, rectx = zspan->rectx, my0, my2;
/* init */
zbuf_init_span(zspan);
@ -1574,7 +1574,7 @@ void zspan_scanconvert(ZSpan *zspan, void *handle, float *v1, float *v2, float *
span2= zspan->span1+my2;
}
for (y=my2; y>=my0; y--, span1--, span2--) {
for (i = 0, y = my2; y >= my0; i++, y--, span1--, span2--) {
sn1= floor(*span1);
sn2= floor(*span2);
@ -1583,14 +1583,12 @@ void zspan_scanconvert(ZSpan *zspan, void *handle, float *v1, float *v2, float *
if (sn2>=rectx) sn2= rectx-1;
if (sn1<0) sn1= 0;
u= (double)sn1*uxd + uy0;
v= (double)sn1*vxd + vy0;
u = (((double)sn1 * uxd) + uy0) - (i * uyd);
v = (((double)sn1 * vxd) + vy0) - (i * vyd);
for (x= sn1; x<=sn2; x++, u+=uxd, v+=vxd)
func(handle, x, y, u, v);
uy0 -= uyd;
vy0 -= vyd;
for (j = 0, x = sn1; x <= sn2; j++, x++) {
func(handle, x, y, u + (j * uxd), v + (j * vxd));
}
}
}