Re: Question on transparent camera transformed objects.

[Peter M. <Pet...@mi...>]

On 28 Sep 2004, at 16:58, James W. Walker wrote:

>
> On Sep 28, 2004, at 8:09 AM, Peter Michelsen wrote:
>
>> Now the problem, as the camera rotate around the polygons colour 
>> changes. The reason is that the polygons are real 3D objects in Quesa 
>> space so are effected by the sun light. ( tested by turning the sun 
>> off e.g. the directional light ).
>>
>> We normally overcome this problem by submitting objects before the 
>> view light style is added but as the polygons are transparent this 
>> trick does not work.
>>
>> Any ideas on overcoming this.
>
> How about submitting it with a NULL illumination shader?
> --


I have tried this and yes it works but affects all transparent objects 
not just the selection boxes..... which is a bit of a problem. ( 
Changing styles between submitting had no effect either. )

Can NULL illumination shader be submitted as an attribute to an object 
and not a style for the view ?

Please note: I also tested adding the NULL illumination shader added to 
the display group in which the objects are grouped and this had no 
effect on stopping the light data mixing. We are now using the latest 
CVS version of Quesa.

Thanks for the info.

Peter.


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