How to programatically merge & render 3d models?

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How to programatically merge & render 3d models?

Hi All,

I want to write an application that let users customize some 3d objects, making new objects by combining existing ones. For example, if a user wants to change just the roof of a house, he should select a new one (other existing roof object) and the whole model (the whole house) would be updated. I haven´t found any way to do this merge programatically, so the alternative is 3d modeling each combination of objects, which is impractical even for a low number of customizable options.

Do you know any way to achieve this dynamical merging?

Thank you very much.

+1 A:

Why don't you store every customizable part of the house as a model? In your example, there would be a model of a house without a roof, models of all possible roofs, and then when you need a complete house drawn, you drawn a house without a roof + a roof chosen by user.

himself 2010-02-07 12:51:37

Of course, that's what I'm trying to achieve but... how can I create programatically a new 3d model from two different 3d models?

Wickie 2010-02-07 16:24:49

Why do you need it to be exactly a "model", whatever might you mean by that? Why don't you, say, just write a class called "CComposition", which would accept a list of models (of a house itself, and of it's parts) and draw them one by one?Anyway, if you really need merging models (i.e. for saving), and not just rendering a merged model, at least specify the format in which your models are stored. Or else how would anybody know...

himself 2010-02-12 10:37:27

Ok, I apologize, maybe I haven't explained myself. My goal is to customize an object (that's what I mean when I say "model") composed of some other objects (again, some other models). The "models" are 3D Model files (for example, 3DStudioMax or "obj" files). So, the question is... how can I merge dynamically these models into a single one? how can I specify, in the models or in the merging process, the junction points? do you know any api (I'm working in Java) offering this functionality?Thank you very much!

Wickie 2010-02-13 20:53:15

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How to programatically merge & render 3d models?

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