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Interpolate renderer-specific slope vectors

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This commit is contained in:
Lactozilla 2024-06-07 19:08:22 -03:00
parent 9ff0bea92c
commit 5f7389142e
4 changed files with 80 additions and 1 deletions
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26
src/m_vector.c
View file

@ -21,6 +21,32 @@ void DVector3_Load(dvector3_t *vec, double x, double y, double z)
vec->z = z;
}
void DVector3_Copy(dvector3_t *a_o, const dvector3_t *a_i)
{
memcpy(a_o, a_i, sizeof(dvector3_t));
}
void DVector3_Add(const dvector3_t *a_i, const dvector3_t *a_c, dvector3_t *a_o)
{
a_o->x = a_i->x + a_c->x;
a_o->y = a_i->y + a_c->y;
a_o->z = a_i->z + a_c->z;
}
void DVector3_Subtract(const dvector3_t *a_i, const dvector3_t *a_c, dvector3_t *a_o)
{
a_o->x = a_i->x - a_c->x;
a_o->y = a_i->y - a_c->y;
a_o->z = a_i->z - a_c->z;
}
void DVector3_Multiply(const dvector3_t *a_i, double a_c, dvector3_t *a_o)
{
a_o->x = a_i->x * a_c;
a_o->y = a_i->y * a_c;
a_o->z = a_i->z * a_c;
}
double DVector3_Magnitude(const dvector3_t *a_normal)
{
double xs = a_normal->x * a_normal->x;

4
src/m_vector.h
View file

@ -19,6 +19,10 @@ typedef struct
} dvector3_t;
void DVector3_Load(dvector3_t *vec, double x, double y, double z);
void DVector3_Copy(dvector3_t *a_o, const dvector3_t *a_i);
void DVector3_Add(const dvector3_t *a_i, const dvector3_t *a_c, dvector3_t *a_o);
void DVector3_Subtract(const dvector3_t *a_i, const dvector3_t *a_c, dvector3_t *a_o);
void DVector3_Multiply(const dvector3_t *a_i, double a_c, dvector3_t *a_o);
double DVector3_Magnitude(const dvector3_t *a_normal);
double DVector3_Normalize(dvector3_t *a_normal);
void DVector3_Negate(dvector3_t *a_o);

48
src/r_fps.c
View file

@ -120,6 +120,19 @@ static vector3_t *R_LerpVector3(const vector3_t *from, const vector3_t *to, fixe
return out;
}
static double R_LerpDouble(double from, double to, double frac)
{
return from + (frac * (to - from));
}
static dvector3_t *R_LerpDVector3(const dvector3_t *from, const dvector3_t *to, double frac, dvector3_t *out)
{
DVector3_Subtract(to, from, out);
DVector3_Multiply(out, frac, out);
DVector3_Add(from, out, out);
return out;
}
// recalc necessary stuff for mouseaiming
// slopes are already calculated for the full possible view (which is 4*viewheight).
// 18/08/18: (No it's actually 16*viewheight, thanks Jimita for finding this out)
@ -497,6 +510,14 @@ void R_CreateInterpolator_DynSlope(thinker_t *thinker, pslope_t *slope)
FV2_Copy(&interp->dynslope.bakd, &slope->d);
interp->dynslope.oldzdelta = interp->dynslope.bakzdelta = slope->zdelta;
DVector3_Copy(&interp->dynslope.oldorigin, &slope->dorigin);
DVector3_Copy(&interp->dynslope.bakorigin, &slope->dorigin);
DVector3_Copy(&interp->dynslope.oldnormdir, &slope->dnormdir);
DVector3_Copy(&interp->dynslope.baknormdir, &slope->dnormdir);
interp->dynslope.olddzdelta = interp->dynslope.bakdzdelta = slope->dzdelta;
}
void R_InitializeLevelInterpolators(void)
@ -561,6 +582,21 @@ static void UpdateLevelInterpolatorState(levelinterpolator_t *interp)
FV3_Copy(&interp->dynslope.bako, &interp->dynslope.slope->o);
FV2_Copy(&interp->dynslope.bakd, &interp->dynslope.slope->d);
interp->dynslope.bakzdelta = interp->dynslope.slope->zdelta;
DVector3_Copy(&interp->dynslope.oldorigin, &interp->dynslope.bakorigin);
DVector3_Copy(&interp->dynslope.oldnormdir, &interp->dynslope.baknormdir);
interp->dynslope.olddzdelta = interp->dynslope.bakdzdelta;
if (interp->dynslope.slope->moved)
{
P_CalculateSlopeVectors(interp->dynslope.slope);
interp->dynslope.slope->moved = false;
}
DVector3_Copy(&interp->dynslope.bakorigin, &interp->dynslope.slope->dorigin);
DVector3_Copy(&interp->dynslope.baknormdir, &interp->dynslope.slope->dnormdir);
interp->dynslope.bakdzdelta = interp->dynslope.slope->dzdelta;
break;
}
}
@ -646,7 +682,13 @@ void R_ApplyLevelInterpolators(fixed_t frac)
R_LerpVector3(&interp->dynslope.oldo, &interp->dynslope.bako, frac, &interp->dynslope.slope->o);
R_LerpVector2(&interp->dynslope.oldd, &interp->dynslope.bakd, frac, &interp->dynslope.slope->d);
interp->dynslope.slope->zdelta = R_LerpFixed(interp->dynslope.oldzdelta, interp->dynslope.bakzdelta, frac);
interp->dynslope.slope->moved = true;
if (rendermode == render_soft)
{
double dfrac = FixedToDouble(frac);
R_LerpDVector3(&interp->dynslope.oldorigin, &interp->dynslope.bakorigin, dfrac, &interp->dynslope.slope->dorigin);
R_LerpDVector3(&interp->dynslope.oldnormdir, &interp->dynslope.baknormdir, dfrac, &interp->dynslope.slope->dnormdir);
interp->dynslope.slope->dzdelta = R_LerpDouble(interp->dynslope.olddzdelta, interp->dynslope.bakdzdelta, dfrac);
}
break;
}
}
@ -704,6 +746,10 @@ void R_RestoreLevelInterpolators(void)
FV3_Copy(&interp->dynslope.slope->o, &interp->dynslope.bako);
FV2_Copy(&interp->dynslope.slope->d, &interp->dynslope.bakd);
interp->dynslope.slope->zdelta = interp->dynslope.bakzdelta;
DVector3_Copy(&interp->dynslope.slope->dorigin, &interp->dynslope.bakorigin);
DVector3_Copy(&interp->dynslope.slope->dnormdir, &interp->dynslope.baknormdir);
interp->dynslope.slope->dzdelta = interp->dynslope.bakdzdelta;
break;
}
}

3
src/r_fps.h
View file

@ -115,6 +115,9 @@ typedef struct levelinterpolator_s {
vector3_t oldo, bako;
vector2_t oldd, bakd;
fixed_t oldzdelta, bakzdelta;
dvector3_t oldorigin, bakorigin;
dvector3_t oldnormdir, baknormdir;
double olddzdelta, bakdzdelta;
} dynslope;
};
} levelinterpolator_t;