- projectdistance = lightradius - sqrt(dist);
- {
-#if 0
- int d0, d1, d2, d3;
- // calculate projected bounding box and decide if it is on-screen
- d0 = false;
- d1 = false;
- d2 = false;
- d3 = false;
- for (i = 0;i < 8;i++)
- {
- p[0] = i & 1 ? ent->maxs[0] : ent->mins[0];
- p[1] = i & 2 ? ent->maxs[1] : ent->mins[1];
- p[2] = i & 4 ? ent->maxs[2] : ent->mins[2];
- VectorSubtract(p, lightorigin, temp);
- dist = projectdistance / sqrt(DotProduct(temp, temp));
- VectorMA(p, dist, temp, p2);
- if (!d0 && (DotProduct(p , frustum[0].normal) < frustum[0].dist || DotProduct(p2, frustum[0].normal) < frustum[0].dist))
- d0 = true;
- if (!d1 && (DotProduct(p , frustum[1].normal) < frustum[1].dist || DotProduct(p2, frustum[1].normal) < frustum[1].dist))
- d1 = true;
- if (!d2 && (DotProduct(p , frustum[2].normal) < frustum[2].dist || DotProduct(p2, frustum[2].normal) < frustum[2].dist))
- d2 = true;
- if (!d3 && (DotProduct(p , frustum[3].normal) < frustum[3].dist || DotProduct(p2, frustum[3].normal) < frustum[3].dist))
- d3 = true;
- }
- if (d0 && d1 && d2 && d3)
-#else
- vec3_t mins, maxs;
- // calculate projected bounding box and decide if it is on-screen
- VectorCopy(ent->mins, mins);
- VectorCopy(ent->maxs, maxs);
- for (i = 0;i < 8;i++)
- {
- p[0] = i & 1 ? ent->maxs[0] : ent->mins[0];
- p[1] = i & 2 ? ent->maxs[1] : ent->mins[1];
- p[2] = i & 4 ? ent->maxs[2] : ent->mins[2];
- VectorSubtract(p, lightorigin, temp);
- dist = projectdistance / sqrt(DotProduct(temp, temp));
- VectorMA(p, dist, temp, p2);
- if (mins[0] > p2[0]) mins[0] = p2[0];if (maxs[0] < p2[0]) maxs[0] = p2[0];
- if (mins[1] > p2[1]) mins[1] = p2[1];if (maxs[1] < p2[1]) maxs[1] = p2[1];
- if (mins[2] > p2[2]) mins[2] = p2[2];if (maxs[2] < p2[2]) maxs[2] = p2[2];
- }
- if (R_NotCulledBox(mins, maxs))
-#endif
- {
- Matrix4x4_Transform(&ent->inversematrix, lightorigin, relativelightorigin);
- R_Mesh_Matrix(&ent->matrix);
- ent->model->DrawShadowVolume (ent, relativelightorigin, lightradius, visiblevolume);
- }
- }