OrdinaryMagician/vkdoom_m
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Renderer floatification: Use floating point for visibility values

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This commit is contained in:
Randy Heit 2016-04-14 17:18:17 -05:00
commit 4416d88eb2
6 changed files with 50 additions and 53 deletions
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18
src/r_plane.cpp
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@ -98,7 +98,7 @@ visplane_t *ceilingplane;
// you are changing them to draw a stacked sector. Otherwise, stacked sectors
// won't draw in skyboxes properly.
int stacked_extralight;
float stacked_visibility;
double stacked_visibility;
DVector3 stacked_viewpos;
DAngle stacked_angle;
@ -123,7 +123,7 @@ short ceilingclip[MAXWIDTH];
// texture mapping
//
static fixed_t planeheight;
static double planeheight;
extern "C" {
//
@ -217,7 +217,7 @@ void R_MapPlane (int y, int x1)
// [RH] Notice that I dumped the caching scheme used by Doom.
// It did not offer any appreciable speedup.
distance = FixedMul (planeheight, yslope[y]);
distance = xs_ToInt(planeheight * yslope[y]);
ds_xstep = FixedMul (distance, xstepscale);
ds_ystep = FixedMul (distance, ystepscale);
@ -228,7 +228,7 @@ void R_MapPlane (int y, int x1)
{
// Determine lighting based on the span's distance from the viewer.
ds_colormap = basecolormap->Maps + (GETPALOOKUP (
xs_ToInt(GlobVis * fabs(CenterY - y)), planeshade) << COLORMAPSHIFT);
FLOAT2FIXED(GlobVis * fabs(CenterY - y)), planeshade) << COLORMAPSHIFT);
}
#ifdef X86_ASM
@ -1187,7 +1187,7 @@ void R_DrawPortals ()
ptrdiff_t savedds_p = ds_p - drawsegs;
ptrdiff_t savedlastopening = lastopening;
size_t savedinteresting = FirstInterestingDrawseg;
float savedvisibility = R_GetVisibility ();
double savedvisibility = R_GetVisibility();
AActor *savedcamera = camera;
sector_t *savedsector = viewsector;
@ -1359,7 +1359,7 @@ void R_DrawPortals ()
camera = savedcamera;
viewsector = savedsector;
ViewPos = savedpos;
R_SetVisibility (savedvisibility);
R_SetVisibility(savedvisibility);
extralight = savedextralight;
ViewAngle = savedangle;
R_SetViewAngle ();
@ -1559,9 +1559,9 @@ void R_DrawNormalPlane (visplane_t *pl, fixed_t alpha, bool additive, bool maske
basexfrac = FixedMul (xscale, finecosine[planeang]) + x*xstepscale;
baseyfrac = FixedMul (yscale, -finesine[planeang]) + x*ystepscale;
planeheight = FLOAT2FIXED(fabs(pl->height.Zat0() - ViewPos.Z));
planeheight = fabs(pl->height.Zat0() - ViewPos.Z);
GlobVis = FixedDiv (r_FloorVisibility, planeheight);
GlobVis = r_FloorVisibility / planeheight;
if (fixedlightlev >= 0)
ds_colormap = basecolormap->Maps + fixedlightlev, plane_shade = false;
else if (fixedcolormap)
@ -1709,7 +1709,7 @@ void R_DrawTiltedPlane (visplane_t *pl, fixed_t alpha, bool additive, bool maske
plane_sz[0] = -plane_sz[0];
}
planelightfloat = (r_TiltVisibility * lxscale * lyscale) / (fabs(pl->height.ZatPoint(ViewPos)) / 65536.0);
planelightfloat = (r_TiltVisibility * lxscale * lyscale) / fabs(pl->height.ZatPoint(ViewPos));
if (pl->height.fC() > 0)
planelightfloat = -planelightfloat;