/*
================
R_AliasTransformAndProjectFinalVerts
================
*/
static void R_AliasTransformAndProjectFinalVerts(draw.finalvert_t[] pfv, model.stvert_t[] pstverts)
{
int i, temp;
double lightcos;
double[] plightnormal;
double zi;
model.trivertx_t pverts;
for (i=0 ; i<r_anumverts ; i++)
{
draw.finalvert_t fv = pfv[i];
model.stvert_t stverts = pstverts[i];
pverts = r_apverts[i];
// transform and project
zi = 1.0 / (mathlib.DotProduct(pverts.v, aliastransform[2]) +
aliastransform[2][3]);
// x, y, and z are scaled down by 1/2**31 in the transform, so 1/z is
// scaled up by 1/2**31, and the scaling cancels out for x and y in the
// projection
fv.v[5] = (int)zi;
fv.v[0] = (int)(((mathlib.DotProduct(pverts.v, aliastransform[0]) +
aliastransform[0][3]) * zi) + aliasxcenter);
fv.v[1] = (int)(((mathlib.DotProduct(pverts.v, aliastransform[1]) +
aliastransform[1][3]) * zi) + aliasycenter);
fv.v[2] = stverts.s;
fv.v[3] = stverts.t;
fv.flags = stverts.onseam;
// lighting
plightnormal = r_avertexnormals[pverts.lightnormalindex];
lightcos = mathlib.DotProduct(plightnormal, r_plightvec);
temp = r_ambientlight;
if (lightcos < 0)
{
temp += (int)(r_shadelight * lightcos);
// clamp; because we limited the minimum ambient and shading light, we
// don't have to clamp low light, just bright
if (temp < 0)
temp = 0;
}
fv.v[4] = temp;
}
}
/*
================
R_AliasTransformFinalVert
================
*/
static void R_AliasTransformFinalVert(draw.finalvert_t fv, auxvert_t av,
model.trivertx_t pverts, model.stvert_t pstverts)
{
int temp;
double lightcos;
double[] plightnormal;
av.fv[0] = mathlib.DotProduct(pverts.v, aliastransform[0]) +
aliastransform[0][3];
av.fv[1] = mathlib.DotProduct(pverts.v, aliastransform[1]) +
aliastransform[1][3];
av.fv[2] = mathlib.DotProduct(pverts.v, aliastransform[2]) +
aliastransform[2][3];
fv.v[2] = pstverts.s;
fv.v[3] = pstverts.t;
fv.flags = pstverts.onseam;
// lighting
plightnormal = r_avertexnormals[pverts.lightnormalindex];
lightcos = mathlib.DotProduct(plightnormal, r_plightvec);
temp = r_ambientlight;
if (lightcos < 0)
{
temp += (int)(r_shadelight * lightcos);
// clamp; because we limited the minimum ambient and shading light, we
// don't have to clamp low light, just bright
if (temp < 0)
temp = 0;
}
fv.v[4] = temp;
}
/*
================
R_AliasProjectFinalVert
================
*/
static void R_AliasProjectFinalVert(draw.finalvert_t fv, auxvert_t av)
{
double zi;
// project points
zi = 1.0 / av.fv[2];
fv.v[5] = (int)(zi * ziscale);
fv.v[0] = (int)((av.fv[0] * aliasxscale * zi) + aliasxcenter);
fv.v[1] = (int)((av.fv[1] * aliasyscale * zi) + aliasycenter);
}
