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Some progress!

Browse source 
http://i.imgur.com/yVPJQpp.png

Previously, both were visual garbage. So it's gettin' there.
This commit is contained in:
toasterbabe 2017-03-30 21:57:36 +01:00
parent 837291c013
commit 0ff036c2e2
1 changed files with 33 additions and 4 deletions
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37
src/r_plane.c
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@ -959,13 +959,42 @@ void R_DrawSinglePlane(visplane_t *pl)
// Okay, look, don't ask me why this works, but without this setup there's a disgusting-looking misalignment with the textures. -Red
const float fudge = ((1<<nflatshiftup)+1.0f)/(1<<nflatshiftup);
angle_t hack = (pl->plangle & (ANGLE_90-1));
yoffs *= 1;
xoffs &= ((1 << (32-nflatshiftup))-1);
yoffs &= ((1 << (32-nflatshiftup))-1);
#define incorporateorigin(originx, originy) xoffs &= ((1 << (32-nflatshiftup))-1);\
yoffs &= ((1 << (32-nflatshiftup))-1);\
xoffs -= (originx + (1 << (31-nflatshiftup))) & ~((1 << (32-nflatshiftup))-1);\
yoffs += (originy + (1 << (31-nflatshiftup))) & ~((1 << (32-nflatshiftup))-1)
xoffs -= (pl->slope->o.x + (1 << (31-nflatshiftup))) & ~((1 << (32-nflatshiftup))-1);
yoffs += (pl->slope->o.y + (1 << (31-nflatshiftup))) & ~((1 << (32-nflatshiftup))-1);
if (hack != 0)
{
if (hack >= ANGLE_45)
hack = InvAngle(hack);
{
const fixed_t cosinecomponent = FINECOSINE(hack>>ANGLETOFINESHIFT);
const fixed_t sinecomponent = FINESINE(hack>>ANGLETOFINESHIFT);
const fixed_t ox = FixedMul(pl->slope->o.x,cosinecomponent)+FixedMul(pl->slope->o.y,sinecomponent);
const fixed_t oy = -FixedMul(pl->slope->o.x,sinecomponent)+FixedMul(pl->slope->o.y,cosinecomponent);
fixed_t oldxoffs = xoffs;
xoffs = FixedMul(xoffs,cosinecomponent)+FixedMul(yoffs,sinecomponent);
yoffs = -FixedMul(oldxoffs,sinecomponent)+FixedMul(yoffs,cosinecomponent);
incorporateorigin(ox, oy);
oldxoffs = xoffs;
xoffs = FixedMul(xoffs,cosinecomponent)+FixedMul(yoffs,-sinecomponent); // negative sine for opposite direction
yoffs = -FixedMul(oldxoffs,-sinecomponent)+FixedMul(yoffs,cosinecomponent); // ditto
}
}
else
{
incorporateorigin(pl->slope->o.x, pl->slope->o.y);
}
#undef incorporateorigin
xoffs = (fixed_t)(xoffs*fudge);
yoffs = (fixed_t)(yoffs/fudge);