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Index › Programming Questions & Help › OpenGL and 3D Libraries › To Achieve an Effect

yiyangchen2009 YaBB Newbies Offline Posts: 20	To Achieve an Effect Mar 22nd, 2009, 3:12pm   Hello everyone,I was asked to make a series of movements including making an 3D arrow appear ,morph and disappear.How to achieve the effect of gradually coming into existence and fading out for the arrow?To alter its opacity?or...?I don't know much about it.Thank you for your reply!