- float dp1 = p1[0] + p1[1], dn1 = p1[0] - p1[1], ap1 = fabs(dp1), an1 = fabs(dn1),
- dp2 = p2[0] + p2[1], dn2 = p2[0] - p2[1], ap2 = fabs(dp2), an2 = fabs(dn2),
- dp3 = p3[0] + p3[1], dn3 = p3[0] - p3[1], ap3 = fabs(dp3), an3 = fabs(dn3);
+ float dp1 = p1[0] + p1[1], dn1 = p1[0] - p1[1], ap1 = fabs(dp1), an1 = fabs(dn1),
+ dp2 = p2[0] + p2[1], dn2 = p2[0] - p2[1], ap2 = fabs(dp2), an2 = fabs(dn2),
+ dp3 = p3[0] + p3[1], dn3 = p3[0] - p3[1], ap3 = fabs(dp3), an3 = fabs(dn3);
- if(an1 > bias*ap1 && an2 > bias*ap2 && an3 > bias*ap3)
- mask &= (3<<4)
- | (dn1 >= 0 ? (1<<0)|(2<<2) : (2<<0)|(1<<2))
- | (dn2 >= 0 ? (1<<0)|(2<<2) : (2<<0)|(1<<2))
- | (dn3 >= 0 ? (1<<0)|(2<<2) : (2<<0)|(1<<2));
-
- dp1 = p1[1] + p1[2], dn1 = p1[1] - p1[2], ap1 = fabs(dp1), an1 = fabs(dn1),
- dp2 = p2[1] + p2[2], dn2 = p2[1] - p2[2], ap2 = fabs(dp2), an2 = fabs(dn2),
- dp3 = p3[1] + p3[2], dn3 = p3[1] - p3[2], ap3 = fabs(dp3), an3 = fabs(dn3);
- if(ap1 > bias*an1 && ap2 > bias*an2 && ap3 > bias*an3)
- mask &= (3<<0)
- | (dp1 >= 0 ? (1<<2)|(1<<4) : (2<<2)|(2<<4))
- | (dp2 >= 0 ? (1<<2)|(1<<4) : (2<<2)|(2<<4))
- | (dp3 >= 0 ? (1<<2)|(1<<4) : (2<<2)|(2<<4));
- if(an1 > bias*ap1 && an2 > bias*ap2 && an3 > bias*ap3)
- mask &= (3<<0)
- | (dn1 >= 0 ? (1<<2)|(2<<4) : (2<<2)|(1<<4))
- | (dn2 >= 0 ? (1<<2)|(2<<4) : (2<<2)|(1<<4))
- | (dn3 >= 0 ? (1<<2)|(2<<4) : (2<<2)|(1<<4));
-
- dp1 = p1[2] + p1[0], dn1 = p1[2] - p1[0], ap1 = fabs(dp1), an1 = fabs(dn1),
- dp2 = p2[2] + p2[0], dn2 = p2[2] - p2[0], ap2 = fabs(dp2), an2 = fabs(dn2),
- dp3 = p3[2] + p3[0], dn3 = p3[2] - p3[0], ap3 = fabs(dp3), an3 = fabs(dn3);
- if(ap1 > bias*an1 && ap2 > bias*an2 && ap3 > bias*an3)
- mask &= (3<<2)
- | (dp1 >= 0 ? (1<<4)|(1<<0) : (2<<4)|(2<<0))
- | (dp2 >= 0 ? (1<<4)|(1<<0) : (2<<4)|(2<<0))
- | (dp3 >= 0 ? (1<<4)|(1<<0) : (2<<4)|(2<<0));
- if(an1 > bias*ap1 && an2 > bias*ap2 && an3 > bias*ap3)
- mask &= (3<<2)
- | (dn1 >= 0 ? (1<<4)|(2<<0) : (2<<4)|(1<<0))
- | (dn2 >= 0 ? (1<<4)|(2<<0) : (2<<4)|(1<<0))
- | (dn3 >= 0 ? (1<<4)|(2<<0) : (2<<4)|(1<<0));
+ if(an1 > bias*ap1 && an2 > bias*ap2 && an3 > bias*ap3)
+ mask &= (3<<4)
+ | (dn1 >= 0 ? (1<<0)|(2<<2) : (2<<0)|(1<<2))
+ | (dn2 >= 0 ? (1<<0)|(2<<2) : (2<<0)|(1<<2))
+ | (dn3 >= 0 ? (1<<0)|(2<<2) : (2<<0)|(1<<2));
+
+ dp1 = p1[1] + p1[2], dn1 = p1[1] - p1[2], ap1 = fabs(dp1), an1 = fabs(dn1),
+ dp2 = p2[1] + p2[2], dn2 = p2[1] - p2[2], ap2 = fabs(dp2), an2 = fabs(dn2),
+ dp3 = p3[1] + p3[2], dn3 = p3[1] - p3[2], ap3 = fabs(dp3), an3 = fabs(dn3);
+ if(ap1 > bias*an1 && ap2 > bias*an2 && ap3 > bias*an3)
+ mask &= (3<<0)
+ | (dp1 >= 0 ? (1<<2)|(1<<4) : (2<<2)|(2<<4))
+ | (dp2 >= 0 ? (1<<2)|(1<<4) : (2<<2)|(2<<4))
+ | (dp3 >= 0 ? (1<<2)|(1<<4) : (2<<2)|(2<<4));
+ if(an1 > bias*ap1 && an2 > bias*ap2 && an3 > bias*ap3)
+ mask &= (3<<0)
+ | (dn1 >= 0 ? (1<<2)|(2<<4) : (2<<2)|(1<<4))
+ | (dn2 >= 0 ? (1<<2)|(2<<4) : (2<<2)|(1<<4))
+ | (dn3 >= 0 ? (1<<2)|(2<<4) : (2<<2)|(1<<4));
+
+ dp1 = p1[2] + p1[0], dn1 = p1[2] - p1[0], ap1 = fabs(dp1), an1 = fabs(dn1),
+ dp2 = p2[2] + p2[0], dn2 = p2[2] - p2[0], ap2 = fabs(dp2), an2 = fabs(dn2),
+ dp3 = p3[2] + p3[0], dn3 = p3[2] - p3[0], ap3 = fabs(dp3), an3 = fabs(dn3);
+ if(ap1 > bias*an1 && ap2 > bias*an2 && ap3 > bias*an3)
+ mask &= (3<<2)
+ | (dp1 >= 0 ? (1<<4)|(1<<0) : (2<<4)|(2<<0))
+ | (dp2 >= 0 ? (1<<4)|(1<<0) : (2<<4)|(2<<0))
+ | (dp3 >= 0 ? (1<<4)|(1<<0) : (2<<4)|(2<<0));
+ if(an1 > bias*ap1 && an2 > bias*ap2 && an3 > bias*ap3)
+ mask &= (3<<2)
+ | (dn1 >= 0 ? (1<<4)|(2<<0) : (2<<4)|(1<<0))
+ | (dn2 >= 0 ? (1<<4)|(2<<0) : (2<<4)|(1<<0))
+ | (dn3 >= 0 ? (1<<4)|(2<<0) : (2<<4)|(1<<0));
- dp1 = pmax[0] + pmax[1], dn1 = pmax[0] - pmin[1], ap1 = fabs(dp1), an1 = fabs(dn1),
- dp2 = pmin[0] + pmin[1], dn2 = pmin[0] - pmax[1], ap2 = fabs(dp2), an2 = fabs(dn2);
- if(ap1 > bias*an1 && ap2 > bias*an2)
- mask &= (3<<4)
- | (dp1 >= 0 ? (1<<0)|(1<<2) : (2<<0)|(2<<2))
- | (dp2 >= 0 ? (1<<0)|(1<<2) : (2<<0)|(2<<2));
- if(an1 > bias*ap1 && an2 > bias*ap2)
- mask &= (3<<4)
- | (dn1 >= 0 ? (1<<0)|(2<<2) : (2<<0)|(1<<2))
- | (dn2 >= 0 ? (1<<0)|(2<<2) : (2<<0)|(1<<2));
-
- dp1 = pmax[1] + pmax[2], dn1 = pmax[1] - pmin[2], ap1 = fabs(dp1), an1 = fabs(dn1),
- dp2 = pmin[1] + pmin[2], dn2 = pmin[1] - pmax[2], ap2 = fabs(dp2), an2 = fabs(dn2);
- if(ap1 > bias*an1 && ap2 > bias*an2)
- mask &= (3<<0)
- | (dp1 >= 0 ? (1<<2)|(1<<4) : (2<<2)|(2<<4))
- | (dp2 >= 0 ? (1<<2)|(1<<4) : (2<<2)|(2<<4));
- if(an1 > bias*ap1 && an2 > bias*ap2)
- mask &= (3<<0)
- | (dn1 >= 0 ? (1<<2)|(2<<4) : (2<<2)|(1<<4))
- | (dn2 >= 0 ? (1<<2)|(2<<4) : (2<<2)|(1<<4));
-
- dp1 = pmax[2] + pmax[0], dn1 = pmax[2] - pmin[0], ap1 = fabs(dp1), an1 = fabs(dn1),
- dp2 = pmin[2] + pmin[0], dn2 = pmin[2] - pmax[0], ap2 = fabs(dp2), an2 = fabs(dn2);
- if(ap1 > bias*an1 && ap2 > bias*an2)
- mask &= (3<<2)
- | (dp1 >= 0 ? (1<<4)|(1<<0) : (2<<4)|(2<<0))
- | (dp2 >= 0 ? (1<<4)|(1<<0) : (2<<4)|(2<<0));
- if(an1 > bias*ap1 && an2 > bias*ap2)
- mask &= (3<<2)
- | (dn1 >= 0 ? (1<<4)|(2<<0) : (2<<4)|(1<<0))
- | (dn2 >= 0 ? (1<<4)|(2<<0) : (2<<4)|(1<<0));
-
- return mask;
+ dp1 = pmax[0] + pmax[1], dn1 = pmax[0] - pmin[1], ap1 = fabs(dp1), an1 = fabs(dn1),
+ dp2 = pmin[0] + pmin[1], dn2 = pmin[0] - pmax[1], ap2 = fabs(dp2), an2 = fabs(dn2);
+ if(ap1 > bias*an1 && ap2 > bias*an2)
+ mask &= (3<<4)
+ | (dp1 >= 0 ? (1<<0)|(1<<2) : (2<<0)|(2<<2))
+ | (dp2 >= 0 ? (1<<0)|(1<<2) : (2<<0)|(2<<2));
+ if(an1 > bias*ap1 && an2 > bias*ap2)
+ mask &= (3<<4)
+ | (dn1 >= 0 ? (1<<0)|(2<<2) : (2<<0)|(1<<2))
+ | (dn2 >= 0 ? (1<<0)|(2<<2) : (2<<0)|(1<<2));
+
+ dp1 = pmax[1] + pmax[2], dn1 = pmax[1] - pmin[2], ap1 = fabs(dp1), an1 = fabs(dn1),
+ dp2 = pmin[1] + pmin[2], dn2 = pmin[1] - pmax[2], ap2 = fabs(dp2), an2 = fabs(dn2);
+ if(ap1 > bias*an1 && ap2 > bias*an2)
+ mask &= (3<<0)
+ | (dp1 >= 0 ? (1<<2)|(1<<4) : (2<<2)|(2<<4))
+ | (dp2 >= 0 ? (1<<2)|(1<<4) : (2<<2)|(2<<4));
+ if(an1 > bias*ap1 && an2 > bias*ap2)
+ mask &= (3<<0)
+ | (dn1 >= 0 ? (1<<2)|(2<<4) : (2<<2)|(1<<4))
+ | (dn2 >= 0 ? (1<<2)|(2<<4) : (2<<2)|(1<<4));
+
+ dp1 = pmax[2] + pmax[0], dn1 = pmax[2] - pmin[0], ap1 = fabs(dp1), an1 = fabs(dn1),
+ dp2 = pmin[2] + pmin[0], dn2 = pmin[2] - pmax[0], ap2 = fabs(dp2), an2 = fabs(dn2);
+ if(ap1 > bias*an1 && ap2 > bias*an2)
+ mask &= (3<<2)
+ | (dp1 >= 0 ? (1<<4)|(1<<0) : (2<<4)|(2<<0))
+ | (dp2 >= 0 ? (1<<4)|(1<<0) : (2<<4)|(2<<0));
+ if(an1 > bias*ap1 && an2 > bias*ap2)
+ mask &= (3<<2)
+ | (dn1 >= 0 ? (1<<4)|(2<<0) : (2<<4)|(1<<0))
+ | (dn2 >= 0 ? (1<<4)|(2<<0) : (2<<4)|(1<<0));
+
+ return mask;
}
#define R_Shadow_CalcEntitySideMask(ent, worldtolight, radiustolight, bias) R_Shadow_CalcBBoxSideMask((ent)->mins, (ent)->maxs, worldtolight, radiustolight, bias)
int R_Shadow_CalcSphereSideMask(const vec3_t p, float radius, float bias)
{
}
#define R_Shadow_CalcEntitySideMask(ent, worldtolight, radiustolight, bias) R_Shadow_CalcBBoxSideMask((ent)->mins, (ent)->maxs, worldtolight, radiustolight, bias)
int R_Shadow_CalcSphereSideMask(const vec3_t p, float radius, float bias)
{
- // p is in the cubemap's local coordinate system
- // bias = border/(size - border)
- float dxyp = p[0] + p[1], dxyn = p[0] - p[1], axyp = fabs(dxyp), axyn = fabs(dxyn);
- float dyzp = p[1] + p[2], dyzn = p[1] - p[2], ayzp = fabs(dyzp), ayzn = fabs(dyzn);
- float dzxp = p[2] + p[0], dzxn = p[2] - p[0], azxp = fabs(dzxp), azxn = fabs(dzxn);
- int mask = 0x3F;
- if(axyp > bias*axyn + radius) mask &= dxyp < 0 ? ~((1<<0)|(1<<2)) : ~((2<<0)|(2<<2));
- if(axyn > bias*axyp + radius) mask &= dxyn < 0 ? ~((1<<0)|(2<<2)) : ~((2<<0)|(1<<2));
- if(ayzp > bias*ayzn + radius) mask &= dyzp < 0 ? ~((1<<2)|(1<<4)) : ~((2<<2)|(2<<4));
- if(ayzn > bias*ayzp + radius) mask &= dyzn < 0 ? ~((1<<2)|(2<<4)) : ~((2<<2)|(1<<4));
- if(azxp > bias*azxn + radius) mask &= dzxp < 0 ? ~((1<<4)|(1<<0)) : ~((2<<4)|(2<<0));
- if(azxn > bias*azxp + radius) mask &= dzxn < 0 ? ~((1<<4)|(2<<0)) : ~((2<<4)|(1<<0));
- return mask;
+ // p is in the cubemap's local coordinate system
+ // bias = border/(size - border)
+ float dxyp = p[0] + p[1], dxyn = p[0] - p[1], axyp = fabs(dxyp), axyn = fabs(dxyn);
+ float dyzp = p[1] + p[2], dyzn = p[1] - p[2], ayzp = fabs(dyzp), ayzn = fabs(dyzn);
+ float dzxp = p[2] + p[0], dzxn = p[2] - p[0], azxp = fabs(dzxp), azxn = fabs(dzxn);
+ int mask = 0x3F;
+ if(axyp > bias*axyn + radius) mask &= dxyp < 0 ? ~((1<<0)|(1<<2)) : ~((2<<0)|(2<<2));
+ if(axyn > bias*axyp + radius) mask &= dxyn < 0 ? ~((1<<0)|(2<<2)) : ~((2<<0)|(1<<2));
+ if(ayzp > bias*ayzn + radius) mask &= dyzp < 0 ? ~((1<<2)|(1<<4)) : ~((2<<2)|(2<<4));
+ if(ayzn > bias*ayzp + radius) mask &= dyzn < 0 ? ~((1<<2)|(2<<4)) : ~((2<<2)|(1<<4));
+ if(azxp > bias*azxn + radius) mask &= dzxp < 0 ? ~((1<<4)|(1<<0)) : ~((2<<4)|(2<<0));
+ if(azxn > bias*azxp + radius) mask &= dzxn < 0 ? ~((1<<4)|(2<<0)) : ~((2<<4)|(1<<0));
+ return mask;
- // infinite version, assumes frustum corners merely give direction and extend to infinite distance
- Matrix4x4_Transform(&rtlight->matrix_worldtolight, r_refdef.view.origin, p);
- dp = p[0] + p[1], dn = p[0] - p[1], ap = fabs(dp), an = fabs(dn);
- masks[0] |= ap <= bias*an ? 0x3F : (dp >= 0 ? (1<<0)|(1<<2) : (2<<0)|(2<<2));
- masks[1] |= an <= bias*ap ? 0x3F : (dn >= 0 ? (1<<0)|(2<<2) : (2<<0)|(1<<2));
- dp = p[1] + p[2], dn = p[1] - p[2], ap = fabs(dp), an = fabs(dn);
- masks[2] |= ap <= bias*an ? 0x3F : (dp >= 0 ? (1<<2)|(1<<4) : (2<<2)|(2<<4));
- masks[3] |= an <= bias*ap ? 0x3F : (dn >= 0 ? (1<<2)|(2<<4) : (2<<2)|(1<<4));
- dp = p[2] + p[0], dn = p[2] - p[0], ap = fabs(dp), an = fabs(dn);
- masks[4] |= ap <= bias*an ? 0x3F : (dp >= 0 ? (1<<4)|(1<<0) : (2<<4)|(2<<0));
- masks[5] |= an <= bias*ap ? 0x3F : (dn >= 0 ? (1<<4)|(2<<0) : (2<<4)|(1<<0));
- for (i = 0;i < 4;i++)
- {
- Matrix4x4_Transform(&rtlight->matrix_worldtolight, r_refdef.view.frustumcorner[i], n);
- VectorSubtract(n, p, n);
- dp = n[0] + n[1], dn = n[0] - n[1], ap = fabs(dp), an = fabs(dn);
- if(ap > 0) masks[0] |= dp >= 0 ? (1<<0)|(1<<2) : (2<<0)|(2<<2);
- if(an > 0) masks[1] |= dn >= 0 ? (1<<0)|(2<<2) : (2<<0)|(1<<2);
- dp = n[1] + n[2], dn = n[1] - n[2], ap = fabs(dp), an = fabs(dn);
- if(ap > 0) masks[2] |= dp >= 0 ? (1<<2)|(1<<4) : (2<<2)|(2<<4);
- if(an > 0) masks[3] |= dn >= 0 ? (1<<2)|(2<<4) : (2<<2)|(1<<4);
- dp = n[2] + n[0], dn = n[2] - n[0], ap = fabs(dp), an = fabs(dn);
- if(ap > 0) masks[4] |= dp >= 0 ? (1<<4)|(1<<0) : (2<<4)|(2<<0);
- if(an > 0) masks[5] |= dn >= 0 ? (1<<4)|(2<<0) : (2<<4)|(1<<0);
- }
+ // infinite version, assumes frustum corners merely give direction and extend to infinite distance
+ Matrix4x4_Transform(&rtlight->matrix_worldtolight, r_refdef.view.origin, p);
+ dp = p[0] + p[1], dn = p[0] - p[1], ap = fabs(dp), an = fabs(dn);
+ masks[0] |= ap <= bias*an ? 0x3F : (dp >= 0 ? (1<<0)|(1<<2) : (2<<0)|(2<<2));
+ masks[1] |= an <= bias*ap ? 0x3F : (dn >= 0 ? (1<<0)|(2<<2) : (2<<0)|(1<<2));
+ dp = p[1] + p[2], dn = p[1] - p[2], ap = fabs(dp), an = fabs(dn);
+ masks[2] |= ap <= bias*an ? 0x3F : (dp >= 0 ? (1<<2)|(1<<4) : (2<<2)|(2<<4));
+ masks[3] |= an <= bias*ap ? 0x3F : (dn >= 0 ? (1<<2)|(2<<4) : (2<<2)|(1<<4));
+ dp = p[2] + p[0], dn = p[2] - p[0], ap = fabs(dp), an = fabs(dn);
+ masks[4] |= ap <= bias*an ? 0x3F : (dp >= 0 ? (1<<4)|(1<<0) : (2<<4)|(2<<0));
+ masks[5] |= an <= bias*ap ? 0x3F : (dn >= 0 ? (1<<4)|(2<<0) : (2<<4)|(1<<0));
+ for (i = 0;i < 4;i++)
+ {
+ Matrix4x4_Transform(&rtlight->matrix_worldtolight, r_refdef.view.frustumcorner[i], n);
+ VectorSubtract(n, p, n);
+ dp = n[0] + n[1], dn = n[0] - n[1], ap = fabs(dp), an = fabs(dn);
+ if(ap > 0) masks[0] |= dp >= 0 ? (1<<0)|(1<<2) : (2<<0)|(2<<2);
+ if(an > 0) masks[1] |= dn >= 0 ? (1<<0)|(2<<2) : (2<<0)|(1<<2);
+ dp = n[1] + n[2], dn = n[1] - n[2], ap = fabs(dp), an = fabs(dn);
+ if(ap > 0) masks[2] |= dp >= 0 ? (1<<2)|(1<<4) : (2<<2)|(2<<4);
+ if(an > 0) masks[3] |= dn >= 0 ? (1<<2)|(2<<4) : (2<<2)|(1<<4);
+ dp = n[2] + n[0], dn = n[2] - n[0], ap = fabs(dp), an = fabs(dn);
+ if(ap > 0) masks[4] |= dp >= 0 ? (1<<4)|(1<<0) : (2<<4)|(2<<0);
+ if(an > 0) masks[5] |= dn >= 0 ? (1<<4)|(2<<0) : (2<<4)|(1<<0);
+ }