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jPCT-AE - a 3d engine for Android => Support => Topic started by: platte on March 22, 2012, 02:05:02 am

Title: About Object-Space, I am a bit confused
Post by: platte on March 22, 2012, 02:05:02 am

I have used jPCT-AE for a few weeks. I am  a bit confused about object-space.I know, at OpenGL, When we rotate or translate a object, local coordinate of the object will move together. But  jPCT-AE seems  not to move object-coordinate?

Title: Re: About Object-Space, I am a bit confused
Post by: EgonOlsen on March 22, 2012, 03:22:08 pm

I'm not sure if i got the question right...object space is well defined in jPCT as well in OpenGL. It's the space in which the object is defined. It doesn't change. Any transformation of the object's coordinates usually doesn't happen in object space but is a transformation from object into world space.