Object Links during render?

Helper

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 28/01/2003 at 02:01, xxxxxxxx wrote:

User Information:
Cinema 4D Version:   8.012
Platform:   Windows ;
Language(s) :     C++ ;

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I've been trying to track down a problem where I get completely different results when rendering to the editor than I do when rendering to picture viewer.

I'm using a custom shader which is dependent upon an external object (like the SLA proximal shader).

My plugin includes the following in the 'Output()' method to access the object:

  
BaseDocument *bd   = GetActiveDocument();  
BaseContainer *data = chn->GetDataInstance();  
obj = data->GetObjectLink(MY_REF, bd);

This correctly returns the object when it is rendering the view in the editor window, but returns a NULL link when rendering to the picture viewer...

Am I doing something wrong, or is this a bug.
How does proximal access the object data?

Thanks for any help.

Cheers - Steve

Helper

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 28/01/2003 at 02:42, xxxxxxxx wrote:

When you render to the picture viewer the document is cloned (since it is running in a thread), the active document should never be used for anything other than a tool, a shader can find out which document it is rendering. As for the links, I'm not sure what happens to them when you clone a document, maybe someone else can tell you.

Helper

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 28/01/2003 at 04:51, xxxxxxxx wrote:

Hi David,
Thanks for the info, I think I see the problem now. Instead of

  
BaseDocument *bd = GetActiveDocument();

I should have

  
BaseDocument *bd = irs->doc;

I guess that the link is failing because it's taken from the 'irs->doc' document, and I was trying to find it in the 'active' document.

I'll try this tonight, but it sounds promising.

Thank you!

Cheers - Steve