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| 235 | }; |
235 | }; |
| 236 | |
236 | |
| 237 | typedef frac_gen<vec2d> frac2d; |
237 | typedef frac_gen<vec2d> frac2d; |
| 238 | typedef frac_gen<vec3d> frac3d; |
238 | typedef frac_gen<vec3d> frac3d; |
| 239 | |
239 | |
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240 | ///////////////////////////////////////////////////////////////////////////// |
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241 | |
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242 | template<typename T, typename U> |
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243 | T |
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244 | inline border_blend (T a, T b, vec2d P, U N, U W) |
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245 | { |
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246 | U border = W; // within n places of the border |
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247 | |
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248 | min_it (border, P [0]); |
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249 | min_it (border, N - P [0]); |
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250 | min_it (border, P [1]); |
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251 | min_it (border, N - P [1]); |
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252 | |
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253 | return blend (a, b,border, U(0), W); |
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254 | } |
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255 | |
| 240 | #endif |
256 | #endif |
| 241 | |
257 | |
