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Patch from Nuke.YKT to fix sloped floor and ceiling textures wiggling around in Polymost

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git-svn-id: https://svn.eduke32.com/eduke32@7843 1a8010ca-5511-0410-912e-c29ae57300e0

# Conflicts:
#	source/build/src/polymost.cpp
This commit is contained in:
terminx 2019-07-26 21:54:37 +00:00 committed by Christoph Oelckers
parent a3b6d0e70b
commit 47fa1eccd4
1 changed files with 73 additions and 15 deletions
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88
source/build/src/polymost.cpp
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@ -3566,7 +3566,7 @@ static int32_t should_clip_cfwall(float x0, float y0, float x1, float y1)
static int32_t global_cf_z;
static float global_cf_xpanning, global_cf_ypanning, global_cf_heinum;
static int32_t global_cf_shade, global_cf_pal, global_cf_fogpal;
static int32_t (*global_getzofslope_func)(int16_t, int32_t, int32_t);
static float (*global_getzofslope_func)(usectorptr_t, float, float);
static void polymost_internal_nonparallaxed(vec2f_t n0, vec2f_t n1, float ryp0, float ryp1, float x0, float x1,
float y0, float y1, int32_t sectnum)
@ -3711,7 +3711,7 @@ static void polymost_internal_nonparallaxed(vec2f_t n0, vec2f_t n1, float ryp0,
py[0] = y0;
py[1] = y1;
py[2] = double(global_getzofslope_func(sectnum, Blrintf(oxy.x), Blrintf(oxy.y)) - globalposz) * oy2 + ghoriz;
py[2] = double(global_getzofslope_func((usectorptr_t)&sector[sectnum], oxy.x, oxy.y) - globalposz) * oy2 + ghoriz;
vec3f_t oxyz[2] = { { (float)(py[1] - py[2]), (float)(py[2] - py[0]), (float)(py[0] - py[1]) },
{ (float)(px[2] - px[1]), (float)(px[0] - px[2]), (float)(px[1] - px[0]) } };
@ -3847,6 +3847,64 @@ static inline int polymost_getclosestpointonwall(vec2_t const * const pos, int32
return 0;
}
float fgetceilzofslope(usectorptr_t sec, float dax, float day)
{
if (!(sec->ceilingstat&2))
return float(sec->ceilingz);
auto const wal = (uwallptr_t)&wall[sec->wallptr];
auto const wal2 = (uwallptr_t)&wall[wal->point2];
vec2_t const w = *(vec2_t const *)wal;
vec2_t const d = { wal2->x - w.x, wal2->y - w.y };
int const i = nsqrtasm(uhypsq(d.x,d.y))<<5;
if (i == 0) return sec->ceilingz;
float const j = (d.x*(day-w.y)-d.y*(dax-w.x))*(1.f/8.f);
return float(sec->ceilingz) + (sec->ceilingheinum*j)/i;
}
float fgetflorzofslope(usectorptr_t sec, float dax, float day)
{
if (!(sec->floorstat&2))
return float(sec->floorz);
auto const wal = (uwallptr_t)&wall[sec->wallptr];
auto const wal2 = (uwallptr_t)&wall[wal->point2];
vec2_t const w = *(vec2_t const *)wal;
vec2_t const d = { wal2->x - w.x, wal2->y - w.y };
int const i = nsqrtasm(uhypsq(d.x,d.y))<<5;
if (i == 0) return sec->floorz;
float const j = (d.x*(day-w.y)-d.y*(dax-w.x))*(1.f/8.f);
return float(sec->floorz) + (sec->floorheinum*j)/i;
}
void fgetzsofslope(usectorptr_t sec, float dax, float day, float* ceilz, float *florz)
{
*ceilz = float(sec->ceilingz); *florz = float(sec->floorz);
if (((sec->ceilingstat|sec->floorstat)&2) != 2)
return;
auto const wal = (uwallptr_t)&wall[sec->wallptr];
auto const wal2 = (uwallptr_t)&wall[wal->point2];
vec2_t const d = { wal2->x - wal->x, wal2->y - wal->y };
int const i = nsqrtasm(uhypsq(d.x,d.y))<<5;
if (i == 0) return;
float const j = (d.x*(day-wal->y)-d.y*(dax-wal->x))*(1.f/8.f);
if (sec->ceilingstat&2)
*ceilz += (sec->ceilingheinum*j)/i;
if (sec->floorstat&2)
*florz += (sec->floorheinum*j)/i;
}
static void polymost_drawalls(int32_t const bunch)
{
drawpoly_alpha = 0.f;
@ -3920,13 +3978,13 @@ static void polymost_drawalls(int32_t const bunch)
ryp0 *= gyxscale; ryp1 *= gyxscale;
int32_t cz, fz;
float cz, fz;
getzsofslope(sectnum,/*Blrintf(nx0)*/(int)n0.x,/*Blrintf(ny0)*/(int)n0.y,&cz,&fz);
float const cy0 = ((float)(cz-globalposz))*ryp0 + ghoriz, fy0 = ((float)(fz-globalposz))*ryp0 + ghoriz;
fgetzsofslope((usectorptr_t)&sector[sectnum],n0.x,n0.y,&cz,&fz);
float const cy0 = (cz-globalposz)*ryp0 + ghoriz, fy0 = (fz-globalposz)*ryp0 + ghoriz;
getzsofslope(sectnum,/*Blrintf(nx1)*/(int)n1.x,/*Blrintf(ny1)*/(int)n1.y,&cz,&fz);
float const cy1 = ((float)(cz-globalposz))*ryp1 + ghoriz, fy1 = ((float)(fz-globalposz))*ryp1 + ghoriz;
fgetzsofslope((usectorptr_t)&sector[sectnum],n1.x,n1.y,&cz,&fz);
float const cy1 = (cz-globalposz)*ryp1 + ghoriz, fy1 = (fz-globalposz)*ryp1 + ghoriz;
xtex2.d = (ryp0 - ryp1)*gxyaspect / (x0 - x1);
ytex2.d = 0;
@ -3962,7 +4020,7 @@ static void polymost_drawalls(int32_t const bunch)
global_cf_fogpal = sec->fogpal;
global_cf_shade = sec->floorshade, global_cf_pal = sec->floorpal; global_cf_z = sec->floorz; // REFACT
global_cf_xpanning = sec->floorxpanning; global_cf_ypanning = sec->floorypanning, global_cf_heinum = sec->floorheinum;
global_getzofslope_func = &getflorzofslope;
global_getzofslope_func = &fgetflorzofslope;
if (globalpicnum >= r_rortexture && globalpicnum < r_rortexture + r_rortexturerange && r_rorphase == 0)
{
@ -4306,7 +4364,7 @@ static void polymost_drawalls(int32_t const bunch)
global_cf_fogpal = sec->fogpal;
global_cf_shade = sec->ceilingshade, global_cf_pal = sec->ceilingpal; global_cf_z = sec->ceilingz; // REFACT
global_cf_xpanning = sec->ceilingxpanning; global_cf_ypanning = sec->ceilingypanning, global_cf_heinum = sec->ceilingheinum;
global_getzofslope_func = &getceilzofslope;
global_getzofslope_func = &fgetceilzofslope;
if (globalpicnum >= r_rortexture && globalpicnum < r_rortexture + r_rortexturerange && r_rorphase == 0)
{
@ -4698,12 +4756,12 @@ static void polymost_drawalls(int32_t const bunch)
#endif
if (nextsectnum >= 0)
{
getzsofslope(nextsectnum,/*Blrintf(nx0)*/(int)n0.x,/*Blrintf(ny0)*/(int)n0.y,&cz,&fz);
float const ocy0 = ((float)(cz-globalposz))*ryp0 + ghoriz;
float const ofy0 = ((float)(fz-globalposz))*ryp0 + ghoriz;
getzsofslope(nextsectnum,/*Blrintf(nx1)*/(int)n1.x,/*Blrintf(ny1)*/(int)n1.y,&cz,&fz);
float const ocy1 = ((float)(cz-globalposz))*ryp1 + ghoriz;
float const ofy1 = ((float)(fz-globalposz))*ryp1 + ghoriz;
fgetzsofslope((usectorptr_t)&sector[nextsectnum],n0.x,n0.y,&cz,&fz);
float const ocy0 = (cz-globalposz)*ryp0 + ghoriz;
float const ofy0 = (fz-globalposz)*ryp0 + ghoriz;
fgetzsofslope((usectorptr_t)&sector[nextsectnum],n1.x,n1.y,&cz,&fz);
float const ocy1 = (cz-globalposz)*ryp1 + ghoriz;
float const ofy1 = (fz-globalposz)*ryp1 + ghoriz;
if ((wal->cstat&48) == 16) maskwall[maskwallcnt++] = z;