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Rasterization pretty close now

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This commit is contained in:
Miloslav Číž 2019-05-05 17:27:54 +02:00
parent d585310b97
commit 9e3de8c157
1 changed files with 4 additions and 4 deletions
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8
s3l.h
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@ -791,14 +791,14 @@ void S3L_drawTriangle(
infinite substracting loop */
#define stepSide(s)\
while (s##Err >= s##Dy)\
while (s##Err > s##Dy)\
{\
s##X += s##Inc;\
s##Err -= s##ErrSub;\
}\
s##Err += s##ErrAdd;
initSide(r,t,r,1,1)
initSide(r,t,r,1,0)
initSide(l,t,l,1,0)
while (currentY < endY) /* draw the triangle from top to bottom -- the
@ -821,7 +821,7 @@ void S3L_drawTriangle(
}
else
{
initSide(r,r,l,0,1);
initSide(r,r,l,0,0);
S3L_Unit *tmp = barycentric1;
barycentric1 = barycentric2;
@ -845,7 +845,7 @@ void S3L_drawTriangle(
S3L_Unit t1 = 0;
S3L_Unit t2 = tMax;
for (S3L_ScreenCoord x = lX; x <= rX; ++x)
for (S3L_ScreenCoord x = lX; x < rX; ++x)
{
*barycentric0 = S3L_interpolateFrom0(rSideUnitPos,t1,tMax);
*barycentric1 = S3L_interpolateFrom0(lSideUnitPos,t2,tMax);