Function iModelVertEval

src/SB/Core/gc/iModel.cpp:501–531

                       worldsph.center.y * frustumPlane->plane.normal.y +
                       worldsph.center.z * frustumPlane->plane.normal.z;
                nDot -= frustumPlane->plane.distance;

                sDot = shadowVec->x * frustumPlane->plane.normal.x +
                       shadowVec->y * frustumPlane->plane.normal.y +
                       shadowVec->z * frustumPlane->plane.normal.z;
                sDot -= frustumPlane->plane.distance;

                if (nDot > worldsph.radius && sDot > worldsph.radius)
                {
                    *shadowOutside = 1;
                    return 1;
                }

                frustumPlane++;
            }

            *shadowOutside = 0;
            return 1;
        }

        frustumPlane++;
    }

    *shadowOutside = 0;
    return 0;
}

U32 iModelVertCount(RpAtomic* model)
{
    return model->geometry->numVertices;
}

static inline void SkinXform(xVec3* dest, const xVec3* vert, RwMatrix* mat, const RwMatrix* skinmat,
                             const F32* wt, const U32* idx, U32 count)