RenderosityのVueフォーラムで新しいコンテスト募集要項が出てました。
内容は、ざっと訳すと、
"現実には作るのが不可能な建造物を表現した作品”
という感じです。

以下、原文抜粋---------------------------------
Impossible Buildings"

BGHart-" Impossible buildings.

These may be buildings of unusual materials and/or unusual shapes. They may be placed in every surrounding you can imagine (e.g. inside a seashell or below the roots of a tree or in the clouds).

The buildings may be combined of different existing objects but at least one of the objects should be created by you with boolean operations.

Good luck to everyone. I am very looking forward to your ideas. "
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Rendrosityはこちらから↓
http://www.renderosity.com/contest.ez?contest_id=483
初めて尋ねる人はこちらのサイトが参考になると思います。
http://zenryokuhp.com/Poser/poser7.htm