Hello,

Thank You! I use OpenSG 1.6. Is is possible to apply the fix to this version 
or should I upgrade to OpenSG 1.8?

Thomas


----- Original Message ----- 
From: "Dirk Reiners" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Friday, June 22, 2007 12:52 AM
Subject: Re: [Opensg-users] MakeTransparentGraphOp


>
> Hi Thomas,
>
> Thomas Weberndorfer wrote:
>>
>> Hello,
>>
>> Yes, the problem still exists. I want to change the transparency of a
>> loaded model. For testing, I use the tie.wrl file. This is the method
>> for changing the transparency:
>>
>> void setTransparency ( float alpha )
>> {
>>    MakeTransparentGraphOp *op = new MakeTransparentGraphOp;
>>    std::ostringstream str;
>>    str << "transparency=" << alpha;
>>    op->setParams ( str.str() );
>>    // the root node contains a Group-core and has the model attached
>>    op->traverse ( root );
>>    delete op;
>> }
>>
>> But this method seems to ignore the alpha-parameter, because the result
>> is always the same. (Even alpha = 0 and alpha = 1 produces the same
>> result. I attached the results.)
>
> Fixed. Well, sort of. It's not totally general for Chunk Materials and 
> will
> override transparency coming from the material, but I hope it's more 
> useful the
> way it is than it was.
>
> Hope it helps
>
> Dirk
>
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