| … | |
… | |
| 176 | if (fd < -(ctx.c_far - ctx.z_far) -rad * 3.F) |
176 | if (fd < -(ctx.c_far - ctx.z_far) -rad * 3.F) |
| 177 | return false; |
177 | return false; |
| 178 | #endif |
178 | #endif |
| 179 | |
179 | |
| 180 | // very important, optimize? |
180 | // very important, optimize? |
| 181 | GLfloat z = length (ctx.p - centerf) - rad; |
181 | GLfloat z = length (ctx.p - centerf) + rad; |
| 182 | if (z > 0.F && ctx.perspfact * extent / z < 10.) // very crude "too small to see" check |
182 | if (ctx.perspfact * extent / z < 10.) // very crude "too small to see" check |
| 183 | return false; |
183 | return false; |
| 184 | |
184 | |
| 185 | #if 0 |
185 | #if 0 |
| 186 | if (vs.state == PARTIAL || vs.state == FULL) |
186 | if (vs.state == PARTIAL || vs.state == FULL) |
| 187 | ctx.nc_far = max (ctx.nc_far, z); |
187 | ctx.nc_far = max (ctx.nc_far, z); |
