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intersection

Started by ogl Jan 11, 2001 at 6:52 AM 2 replies 300+ views

Original Post

Jan 11, 2001 at 6:52 AM

say I have two cube which I can move around the scene - how could I go about showing their resultant area when they intersect - either in a different colour or transparent - would I have to set up vectors, normals etc.. also say I have a small sphere which I want to light up only when it enters the area of the cube? how could you show that it is in side the cube? cheers

RealityMonster

Jan 11, 2001 at 11:46 AM

you could make both objects trnslucent so when they intersect, their colorsat the intersection get multiplied. just a thought

zedzeek

164

zedzeek

Jan 11, 2001 at 2:02 PM

yes u could try blending with eg GL_ONE,GL_ONE but im not to sure how well that''ll work a safer bet would prolly be using the stencil buffer

http://members.xoom.com/myBollux

ogl

Author

ogl

Jan 15, 2001 at 4:51 AM

quote:
Original post by RealityMonster

you could make both objects trnslucent so when they intersect, their colorsat the intersection get multiplied. just a thought

how could i do this?

- i''ll try blending see if it works

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