Hi, i am working on object selection and translating/rotating/scaling using the mouse. Everything goes well till now. Everything works except moving the objects properly. I have been struggling getting an appropriate formula for moving objects on a rotated/translated axis (x/y, y/z or x/z) when the mousecursor moves, keeping the once clicked spot on the model directly underneeth the cursor. I am now close, but the code is a MESS , actually it's so messy i will have to write it again. I read on this forum a while ago that Microsoft added an unproject function to their matrix class. This would be a simple and fast solution if i could add an UnProject function to my own matrix class. Does anyone now of some articles about unprojecting ? Thanks in advance! [edited by - Tree Penguin on February 11, 2004 5:39:16 AM]

Hi!

I think what you need it gluUnProject().

cya,
Drag0n


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"Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the universe trying to build bigger and better idiots. So far, the universe is winning..." -- Rich Cook

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Too bad i am using my own matrix class all over my project, i don''t think i will be able to use the gluUnProject function unless i could SET the OpenGL matrix , does anyone know how?

Anyway i am still interested in articles/info un unprojecting (always handy to know).

Thanks in advance.

quote:

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Original post by Tree Penguin
Too bad i am using my own matrix class all over my project, i don''t think i will be able to use the gluUnProject function unless i could SET the OpenGL matrix , does anyone know how?

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glLoadMatrix();

You might try reading gl redbook first next time



You should never let your fears become the boundaries of your dreams.

Hehe, sorry. I am pretty busy this week (got a concert to prepare for ) so i didn''t really think of that, instead a method costing me less time was what i thought of .
I promise i will look better before posting my question here next time .