| … | |
… | |
| 151 | if (!overlap (ctx.frustum.c, sphere (centerf, rad))) |
151 | if (!overlap (ctx.frustum.c, sphere (centerf, rad))) |
| 152 | return false; |
152 | return false; |
| 153 | |
153 | |
| 154 | oct_visibility &vs = *(oct_visibility *)get_visibility (ctx); |
154 | oct_visibility &vs = *(oct_visibility *)get_visibility (ctx); |
| 155 | |
155 | |
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156 | vs.state = FULL;//D |
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157 | |
| 156 | #if 0 |
158 | #if 0 |
| 157 | if (max (abs (centeri)) <= extent) |
159 | if (max (abs (centeri)) <= extent) |
| 158 | ; |
160 | ; |
| 159 | else |
161 | else |
| 160 | { |
162 | { |
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163 | #endif |
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164 | |
| 161 | if (distance (ctx.frustum.t, centerf) < -rad) return false; |
165 | //if (distance (ctx.frustum.t, centerf) < -rad) return false; |
| 162 | if (distance (ctx.frustum.b, centerf) < -rad) return false; |
166 | //if (distance (ctx.frustum.b, centerf) < -rad) return false; |
| 163 | if (distance (ctx.frustum.l, centerf) < -rad) return false; |
167 | //if (distance (ctx.frustum.l, centerf) < -rad) return false; |
| 164 | if (distance (ctx.frustum.r, centerf) < -rad) return false; |
168 | //if (distance (ctx.frustum.r, centerf) < -rad) return false; |
| 165 | if (distance (ctx.frustum.n, centerf) < -rad) return false; |
169 | ////if (distance (ctx.frustum.n, centerf) < -rad) return false; |
| 166 | |
170 | |
| 167 | #if 0 |
171 | #if 0 |
| 168 | GLfloat fd = distance (ctx.frustum.f, centerf); |
172 | GLfloat fd = distance (ctx.frustum.f, centerf); |
| 169 | |
173 | |
| 170 | if (fd < -(ctx.c_far - ctx.z_far) -rad * 3.F) |
174 | if (fd < -(ctx.c_far - ctx.z_far) -rad * 3.F) |
| 171 | return false; |
175 | return false; |
| 172 | #endif |
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| 173 | } |
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| 174 | #endif |
176 | #endif |
| 175 | |
177 | |
| 176 | // very important, optimize? |
178 | // very important, optimize? |
| 177 | GLfloat z = ctx.z_near + distance (ctx.frustum.n, centerf) + rad; |
179 | GLfloat z = ctx.z_near + distance (ctx.frustum.n, centerf) + rad; |
| 178 | if (ctx.perspfact * extent / z < 10.) // very crude "too small to see" check |
180 | if (ctx.perspfact * extent / z < 10.) // very crude "too small to see" check |
