文件:Mug and Torus morph.gif
来自集智百科 - 复杂系统|人工智能|复杂科学|复杂网络|自组织
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Mug_and_Torus_morph.gif (240 × 240像素,文件大小:497 KB,MIME类型:image/gif、循环、58帧、12秒)
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目录
摘要
描述Mug and Torus morph.gif |
Türkçe: Bir kahve bardağının simide sürekli deformasyonunu gösteren bir homeomorfizma animasyonu. 本图片使用POV-Ray创作. |
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来源 | 自己的作品 | ||
作者 | Lucas Vieira | ||
其他版本 |
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POV-Ray source code
/* Torus to mug morphing animation, by Lucas Vieira - January 17, 2007 - Coded in: POV-Ray 3.6 License: Public Domain Info ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯ Author user page: http://en.wikipedia.org/wiki/User:LucasVB The final animation at Wikimedia Commons: [[:File:Mug_and_Torus_morph.gif]] Notes ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯ Several modifications were done for each part of the animation and I didn't keep them all here. So if you wish to reproduce the animation, you'll have to play with this code quite a bit. :) */ background { color rgb 1 } global_settings { assumed_gamma 1.5 } camera { orthographic location <0,4,-5>*0.8 look_at <0,0,0> //rotate -45*y } #declare dist = 0.2; light_source { <0,0,0>, 1 //translate <-3,5,-5>*1 translate 5*y translate -5*z translate 2*x } #declare a = 1; // Cylinders for the mug shape #declare C_a = function { pow(x / a,2) + pow(z / a,2)-1.5 } #declare C_b = function { pow(x / a,2) + pow(z / a,2)-1.2 } #declare B_b = function { (y+1.3) } // Torus (handle and the morphing target) #declare R = 1; #declare r = 0.22; #declare T_a = function { pow(R - sqrt(pow(x,2) + pow(y,2)),2) + pow(z,2) - pow(r,2) } #declare R2 = 1; #declare r2 = 0.5; #declare T_b = function { pow(R2 - sqrt(pow(x,2) + pow(y,2)),2) + pow(z,2) - pow(r2,2) } // Hollow mug (concave) #declare Mug = function { min(min(max(C_a(x,y,z),B_b(x,y,z)),max(C_a(x,y,z),-C_b(x,y,z))),max(T_a(x-1,y,z),-C_a(x,y,z))) } // Solid mug (cylinder with handle, convex) #declare Mug2 = function { min(C_a(x,y,z),max(T_a(x-1,y,z),-C_a(x,y,z))) } #declare c = 0.5; // Linear to smooth interpolation #declare Int = pow(sin(clock*pi/2),2); // Functions for the mug parts, left as backups. // max(C_a(x,y,z),B_b(x,y,z)) bottom // max(C_a(x,y,z),-C_b(x,y,z)) sides // min(max(C_a(x,y,z),B_b(x,y,z)),max(C_a(x,y,z),-C_b(x,y,z))) bottom+sides // max(T_a(x-1,y,z),-C_a(x,y,z)) handle // min(min(max(C_a(x,y,z),B_b(x,y,z)),max(C_a(x,y,z),-C_b(x,y,z))),max(T_a(x-1,y,z),-C_a(x,y,z))) full mug // Render as isosurface or CSG. // Isosurface is used in the transitional states. #declare RenderIsosurface = 0; #if (RenderIsosurface) union { isosurface { function { // Add previously defined object functions using Int and (1-Int) as to generate the smooth transition //Mug2(x,y,z)*(1-Int) + Mug(x,y,z) //T_b(x-1,y,z)*Int } contained_by { box { -<3,1.5,3>, <3,1.5,3> } } accuracy 0.001 max_gradient 5 // 10 //rotate -90*x } cylinder { <0,-1.3+Int*2.8,0>, <0,-1.5,0>, sqrt(1.5) } pigment { color rgb <0.6,0.8,1> transmit 0.1 } finish { specular 0.5 roughness 0.01 ambient 0.2 } } #else union { difference { cylinder { -1.5*y, 1.5*y, sqrt(1.5) } cylinder { -2*y, 2*y, sqrt(1.2) } } difference { torus { R, r rotate 90*x translate x } cylinder { -1.5*y, 1.5*y, sqrt(1.5) } } cylinder { <0,0-0.25+Int*(1.5+0.25),0>, <0,-1.5,0>, sqrt(1.5) } pigment { color rgb <0.6,0.8,1> transmit 0.1 } finish { specular 0.5 roughness 0.01 ambient 0.2 } } #end /* END OF FILE */
Updated January 12, 2007
- New colors: blue hue, brighter, softer shadows
- Changed light angle
- Non-linear interpolation: looks smoother and less boring
- Faster frame rate
- Cropped to relevant area
- Overall, smaller size for a better-looking image.
Updated January 20, 2007
- Removed dithering. Image now has visible color bands, but at least thumbnails won't look excessively grainy.
Updated March 1, 2007
- More saturation of colors
许可协议
Public domainPublic domainfalsefalse |
我,本作品著作权人,释出本作品至公有领域。这适用于全世界。 在一些国家这可能不合法;如果是这样的话,那么: 我无条件地授予任何人以任何目的使用本作品的权利,除非这些条件是法律规定所必需的。 |
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日期/时间 | 缩略图 | 大小 | 用户 | 备注 | |
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当前 | 2007年3月2日 (五) 08:56 | 240 × 240(497 KB) | LucasVB | back to old cropping - looks a lot better |
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