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high precision software mdl rendering

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This commit is contained in:
Seth Galbraith 2002-01-05 03:21:02 +00:00
parent abf73ea80a
commit 42456845f0
4 changed files with 58 additions and 23 deletions
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1
include/r_local.h
View file

@ -238,7 +238,6 @@ void R_ZDrawSubmodelPolys (model_t *clmodel);
// Alias models ===========================================
#define MAXALIASVERTS 1024
#define ALIAS_Z_CLIP_PLANE 5
extern int numverts;

1
libs/models/alias/model_alias.c
View file

@ -184,6 +184,7 @@ Mod_LoadAliasModel (model_t *mod, void *buffer, cache_allocator_t allocator)
mod->flags = LittleLong (pinmodel->flags);
// endian-adjust and copy the data, starting with the alias model header
pmodel->ident = LittleLong (pinmodel->ident);
pmodel->boundingradius = LittleFloat (pinmodel->boundingradius);
pmodel->numskins = LittleLong (pinmodel->numskins);
pmodel->skinwidth = LittleLong (pinmodel->skinwidth);

45
libs/video/renderer/sw/sw_ralias.c
View file

@ -94,8 +94,7 @@ void R_AliasTransformVector (vec3_t in, vec3_t out);
void R_AliasTransformFinalVert (finalvert_t *fv, auxvert_t *av,
trivertx_t *pverts, stvert_t *pstverts);
void R_AliasProjectFinalVert (finalvert_t *fv, auxvert_t *av);
qboolean
R_AliasCheckBBox (void)
{
@ -374,7 +373,8 @@ R_AliasSetUpTransform (int trivial_accept)
// Also scale down z, so 1/z is scaled 31 bits for free, and scale down x and y
// correspondingly so the projected x and y come out right
// FIXME: make this work for clipped case too?
if (trivial_accept) {
if (trivial_accept && pmdl->ident != POLYHEADER16) {
for (i = 0; i < 4; i++) {
aliastransform[0][i] *= aliasxscale *
(1.0 / ((float) 0x8000 * 0x10000));
@ -385,7 +385,6 @@ R_AliasSetUpTransform (int trivial_accept)
}
}
void
R_AliasTransformFinalVert (finalvert_t *fv, auxvert_t *av,
trivertx_t *pverts, stvert_t *pstverts)
@ -393,12 +392,31 @@ R_AliasTransformFinalVert (finalvert_t *fv, auxvert_t *av,
int temp;
float lightcos, *plightnormal;
av->fv[0] = DotProduct (pverts->v, aliastransform[0]) +
aliastransform[0][3];
av->fv[1] = DotProduct (pverts->v, aliastransform[1]) +
aliastransform[1][3];
av->fv[2] = DotProduct (pverts->v, aliastransform[2]) +
aliastransform[2][3];
if (pmdl->ident == POLYHEADER16)
{
trivertx_t * pextra;
float vextra[3];
pextra = pverts + pmdl->numverts;
vextra[0] = pverts->v[0] + pextra->v[0] / (float)256;
vextra[1] = pverts->v[1] + pextra->v[1] / (float)256;
vextra[2] = pverts->v[2] + pextra->v[2] / (float)256;
av->fv[0] = DotProduct (vextra, aliastransform[0]) +
aliastransform[0][3];
av->fv[1] = DotProduct (vextra, aliastransform[1]) +
aliastransform[1][3];
av->fv[2] = DotProduct (vextra, aliastransform[2]) +
aliastransform[2][3];
}
else
{
av->fv[0] = DotProduct (pverts->v, aliastransform[0]) +
aliastransform[0][3];
av->fv[1] = DotProduct (pverts->v, aliastransform[1]) +
aliastransform[1][3];
av->fv[2] = DotProduct (pverts->v, aliastransform[2]) +
aliastransform[2][3];
}
fv->v[2] = pstverts->s;
fv->v[3] = pstverts->t;
@ -422,7 +440,6 @@ R_AliasTransformFinalVert (finalvert_t *fv, auxvert_t *av,
fv->v[4] = temp;
}
#ifdef PIC
#undef USE_INTEL_ASM //XXX asm pic hack
#endif
@ -475,7 +492,6 @@ R_AliasTransformAndProjectFinalVerts (finalvert_t *fv, stvert_t *pstverts)
}
#endif
void
R_AliasProjectFinalVert (finalvert_t *fv, auxvert_t *av)
{
@ -490,7 +506,6 @@ R_AliasProjectFinalVert (finalvert_t *fv, auxvert_t *av)
fv->v[1] = (av->fv[1] * aliasyscale * zi) + aliasycenter;
}
void
R_AliasPrepareUnclippedPoints (void)
{
@ -652,7 +667,7 @@ R_AliasSetupFrame (void)
((byte *) paliashdr + paliasgroup->frames[i].frame);
}
#define MAXALIASVERTS 1024
void
R_AliasDrawModel (alight_t *plighting)
{
@ -696,7 +711,7 @@ R_AliasDrawModel (alight_t *plighting)
else
ziscale = (float) 0x8000 *(float) 0x10000 *3.0;
if (currententity->trivial_accept)
if (currententity->trivial_accept && pmdl->ident != POLYHEADER16)
R_AliasPrepareUnclippedPoints ();
else
R_AliasPreparePoints ();

34
libs/video/renderer/sw32/sw32_ralias.c
View file

@ -393,12 +393,31 @@ R_AliasTransformFinalVert (finalvert_t *fv, auxvert_t *av,
int temp;
float lightcos, *plightnormal;
av->fv[0] = DotProduct (pverts->v, aliastransform[0]) +
aliastransform[0][3];
av->fv[1] = DotProduct (pverts->v, aliastransform[1]) +
aliastransform[1][3];
av->fv[2] = DotProduct (pverts->v, aliastransform[2]) +
aliastransform[2][3];
if (pmdl->ident == POLYHEADER16)
{
trivertx_t * pextra;
float vextra[3];
pextra = pverts + pmdl->numverts;
vextra[0] = pverts->v[0] + pextra->v[0] / (float)256;
vextra[1] = pverts->v[1] + pextra->v[1] / (float)256;
vextra[2] = pverts->v[2] + pextra->v[2] / (float)256;
av->fv[0] = DotProduct (vextra, aliastransform[0]) +
aliastransform[0][3];
av->fv[1] = DotProduct (vextra, aliastransform[1]) +
aliastransform[1][3];
av->fv[2] = DotProduct (vextra, aliastransform[2]) +
aliastransform[2][3];
}
else
{
av->fv[0] = DotProduct (pverts->v, aliastransform[0]) +
aliastransform[0][3];
av->fv[1] = DotProduct (pverts->v, aliastransform[1]) +
aliastransform[1][3];
av->fv[2] = DotProduct (pverts->v, aliastransform[2]) +
aliastransform[2][3];
}
fv->v[2] = pstverts->s;
fv->v[3] = pstverts->t;
@ -640,6 +659,7 @@ R_AliasSetupFrame (void)
}
#define MAXALIASVERTS 1024
void
R_AliasDrawModel (alight_t *plighting)
{
@ -682,7 +702,7 @@ R_AliasDrawModel (alight_t *plighting)
else
ziscale = (float) 0x8000 *(float) 0x10000 *3.0;
if (currententity->trivial_accept)
if (currententity->trivial_accept && pmdl->ident != POLYHEADER16)
R_AliasPrepareUnclippedPoints ();
else
R_AliasPreparePoints ();