[vtkusers] (yet another) Opacity Issue (hmm)

Marius S Giurgi rendezvous at dreamxplosion.com
Fri Jan 14 14:53:36 EST 2005


Actually I was looking for something more like this (I edited this in 
Photoshop btw, based on your two renders):

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In this case you can see one part of the plane being rendered properly 
in front of the other, showing thus the line of intersection due to the 
difference in blending color (yellow over red is different from red 
over yellow, in general for the given transparency).


On Jan 14, 2005, at 2:05 PM, Clinton Stimpson wrote:

> Attached are some images of the results I'm getting...
> 1 and 2 are intersecting planes... If I rotate around, sometimes it 
> looks like 1 and sometimes it looks like 2.  It depends on which 
> surfaces got drawn first.  5 is with two intersecting planes and all 
> the triangles are in one vtkPolyData.
> 3 and 4 are of two intersecting spheres.  The same issues as above 
> applies.
> The changes aren't much, and I've got a ton of proprietary code mixed 
> in with the changes only you need to have.
> Do those results look good enough for you?  If so, I can give more 
> detail.
> Clint
> Marius S Giurgi wrote:
>> Thanks for the suggestions, Clint.
>> Unfortunately I'm not that advanced to get my own overloaded classes 
>> yet (I'll get there someday). Do you have a copy of your overloaded 
>> classes somewhere so I can give it a try?
>> Also. do you think your modified classes can handle the simple case 
>> of two intersecting semi-transparent planes? That would be awesome.
>> marius
>> On Jan 14, 2005, at 2:46 AM, Clinton Stimpson wrote:

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