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Merge branch 'private_flatsprite' into 'master' 

OpenGL papersprites

I don't know if anyone actually tested Sryder's original OpenGL papersprites support before it was merged in, but there was some issues with the papersprites themselves "wobbling" about in a sort of weird way depending on the angle you view it from or where you are. It's easiest to see what I mean if you just load up sawb.wad, and strafe about when viewing one of the sawblades.

Thankfully all I really needed to do was tweak the way angles work for papersprites. I also cleaned up Sryder's original code a little, not that I really needed to do so though.

See merge request !96
This commit is contained in:
Monster Iestyn 2017-07-02 09:46:44 -04:00
parent 64b3861168 ed81c9abcb
commit 252cdb0c28
2 changed files with 45 additions and 7 deletions
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1
src/hardware/hw_glob.h
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@ -78,6 +78,7 @@ typedef struct gr_vissprite_s
//Hurdler: 25/04/2000: now support colormap in hardware mode
UINT8 *colormap;
INT32 dispoffset; // copy of info->dispoffset, affects ordering but not drawing
float z1, z2;
} gr_vissprite_t;
// --------

51
src/hardware/hw_main.c
View File

@ -4229,6 +4229,7 @@ static void HWR_DrawSprite(gr_vissprite_t *spr)
GLPatch_t *gpatch; // sprite patch converted to hardware
FSurfaceInfo Surf;
const boolean hires = (spr->mobj && spr->mobj->skin && ((skin_t *)spr->mobj->skin)->flags & SF_HIRES);
//const boolean papersprite = (spr->mobj && (spr->mobj->frame & FF_PAPERSPRITE));
if (spr->mobj)
this_scale = FIXED_TO_FLOAT(spr->mobj->scale);
if (hires)
@ -4272,7 +4273,8 @@ static void HWR_DrawSprite(gr_vissprite_t *spr)
// make a wall polygon (with 2 triangles), using the floor/ceiling heights,
// and the 2d map coords of start/end vertices
wallVerts[0].z = wallVerts[1].z = wallVerts[2].z = wallVerts[3].z = spr->tz;
wallVerts[0].z = wallVerts[3].z = spr->z1;
wallVerts[2].z = wallVerts[1].z = spr->z2;
// transform
wv = wallVerts;
@ -5068,6 +5070,10 @@ static void HWR_ProjectSprite(mobj_t *thing)
angle_t ang;
INT32 heightsec, phs;
const boolean papersprite = (thing->frame & FF_PAPERSPRITE);
float offset;
float ang_scale = 1.0f, ang_scalez = 0.0f;
float z1, z2;
if (!thing)
return;
@ -5082,7 +5088,7 @@ static void HWR_ProjectSprite(mobj_t *thing)
tz = (tr_x * gr_viewcos) + (tr_y * gr_viewsin);
// thing is behind view plane?
if (tz < ZCLIP_PLANE && (!cv_grmd2.value || md2_models[thing->sprite].notfound == true)) //Yellow: Only MD2's dont disappear
if (tz < ZCLIP_PLANE && !papersprite && (!cv_grmd2.value || md2_models[thing->sprite].notfound == true)) //Yellow: Only MD2's dont disappear
return;
tx = (tr_x * gr_viewsin) - (tr_y * gr_viewcos);
@ -5120,6 +5126,27 @@ static void HWR_ProjectSprite(mobj_t *thing)
I_Error("sprframes NULL for sprite %d\n", thing->sprite);
#endif
if (papersprite)
{
// Use the actual view angle, rather than the angle formed
// between the view point and the thing
// this makes sure paper sprites always appear at the right angle!
// Note: DO NOT do this in software mode version, it actually
// makes papersprites look WORSE there (I know, I've tried)
// Monster Iestyn - 13/05/17
ang = dup_viewangle - thing->angle;
ang_scale = FIXED_TO_FLOAT(FINESINE(ang>>ANGLETOFINESHIFT));
ang_scalez = FIXED_TO_FLOAT(FINECOSINE(ang>>ANGLETOFINESHIFT));
if (ang_scale < 0)
{
ang_scale = -ang_scale;
ang_scalez = -ang_scalez;
}
}
else if (sprframe->rotate != SRF_SINGLE)
ang = R_PointToAngle (thing->x, thing->y) - thing->angle;
if (sprframe->rotate == SRF_SINGLE)
{
// use single rotation for all views
@ -5130,8 +5157,6 @@ static void HWR_ProjectSprite(mobj_t *thing)
else
{
// choose a different rotation based on player view
ang = R_PointToAngle (thing->x, thing->y) - thing->angle;
if ((sprframe->rotate & SRF_RIGHT) && (ang < ANGLE_180)) // See from right
rot = 6; // F7 slot
else if ((sprframe->rotate & SRF_LEFT) && (ang >= ANGLE_180)) // See from left
@ -5149,9 +5174,12 @@ static void HWR_ProjectSprite(mobj_t *thing)
// calculate edges of the shape
if (flip)
tx -= FIXED_TO_FLOAT(spritecachedinfo[lumpoff].width - spritecachedinfo[lumpoff].offset) * this_scale;
offset = FIXED_TO_FLOAT(spritecachedinfo[lumpoff].width - spritecachedinfo[lumpoff].offset) * this_scale;
else
tx -= FIXED_TO_FLOAT(spritecachedinfo[lumpoff].offset) * this_scale;
offset = FIXED_TO_FLOAT(spritecachedinfo[lumpoff].offset) * this_scale;
z1 = tz - (offset * ang_scalez);
tx -= offset * ang_scale;
// project x
x1 = gr_windowcenterx + (tx * gr_centerx / tz);
@ -5162,7 +5190,14 @@ static void HWR_ProjectSprite(mobj_t *thing)
x1 = tx;
tx += FIXED_TO_FLOAT(spritecachedinfo[lumpoff].width) * this_scale;
offset = FIXED_TO_FLOAT(spritecachedinfo[lumpoff].width) * this_scale;
z2 = z1 + (offset * ang_scalez);
tx += offset * ang_scale;
if (papersprite && max(z1, z2) < ZCLIP_PLANE)
return;
x2 = gr_windowcenterx + (tx * gr_centerx / tz);
if (vflip)
@ -5211,6 +5246,8 @@ static void HWR_ProjectSprite(mobj_t *thing)
vis->patchlumpnum = sprframe->lumppat[rot];
vis->flip = flip;
vis->mobj = thing;
vis->z1 = z1;
vis->z2 = z2;
//Hurdler: 25/04/2000: now support colormap in hardware mode
if ((vis->mobj->flags & MF_BOSS) && (vis->mobj->flags2 & MF2_FRET) && (leveltime & 1)) // Bosses "flash"