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Superfícies Algebricas

Jae686, há 9 anos

Outro dia tava a matutar em como poderia gerar geometria 3d proceduralemnte, e dei com isto :

http://www.freigeist.cc/gallery.html

xernobly, nao estava a brincar com algo similar a isto na GC ?

ps, há 9 anos

isso é fixe. no outro dia o vic andava a brincar com coisas parecidas, para superficies esfericas.

andavamos a ver era se atinavamos com a metodologia de calcular normais atraves da derivada parcial em vez de fazer o habitual truque do dotproduct dos vectores retirados do ponto anterior com o ponto actual. a ver se dava normais mais melhor boas e / ou rapidas, mas a matematica anda um bocado enferrujada. :S

Jae686, há 9 anos

Eu tinha ideia de utilizar essas fórmulas para gerar modelos proceduralmente, mas aquelas formulas nao me parecem propriamente leves do ponto de vista computacional...

xernobyl, há 9 anos

A maneira mais versatil de fazer essas cenas é usar marching cubes. É possivel gerar algumas das formas assim a fazer uma mesh a percorrer de cima a baixo, mas não funciona para todas. Se usares umas mudanças de coordenadas também é fácil fazer outras.
Já deixei as consolas sosegadas. Agora habituei-me a shaders e acho qualquer cena sem shaders horrivel de programar :D

HugoDaniel, há 9 anos

existe ainda esta grande referência:

Paul Bourke: http://local.wasp.uwa.edu.au/~pbourke/

Esse site é tipo o erowid das formas geométricas :)

zeroshift, há 9 anos
Jae686, há 9 anos

Bookmarked!

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