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Select object: help needed!

Started by buzzy84 Jun 9, 2006 at 9:57 AM 1 reply 400+ views

Original Post

Jun 9, 2006 at 9:57 AM

Hy everyone, I'm developing an app where I want to select and edit some points drowed in a 3d space(opengl) I have tried to select the points following two main ways: ->GL_SELCT ->gluUnproject to obtain mapped mouse coords What is the best and simplest way to perform this job. Please someone help me. Thankyou in advance. Mirko

lem

Jun 10, 2006 at 3:11 AM

on www.gametutorials.com is a good link about it. Also in the red book there is an example using GL_SELECT if I rememeber right.
Quiet a long time since I did selecting, so this may ba "ancient".

The gluUnproject way seems the smarter, since you are not limited ( I think GL_SELECT is limited to ??? selectable objects). Depends on what/how much you have to select.

soconne

107

soconne

Jun 11, 2006 at 12:32 AM

Try this tutorial:
http://gpwiki.org/index.php/OpenGL_Selection_Using_Unique_Color_IDs

You could assign each point a unique colorID and use the method described above.

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