How to list all downstream connections?

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Old 02 February 2007   #1
How to list all downstream connections?

Ok.. an example. lets say you've got a lambert and it has a blendColors node connected to it's color. This blendColors has a fileTexture node on it's input. How do I get from the lambert to the fileTexture node directly.
I need something like:
listConnections -children -type file;
But we know that the "children" relates to DAG nodes on listRelatives.

Thanks for any help in advance.

Emil
 
Old 02 February 2007   #2
You could do something like this:

string $conn1[] = `listConnections -d 0 -s 1 lambert1`; // get first connection...
    string $conn2[] = `listConnections -d 0 -s 1 $conn1[0]`; // get second connection...
    print($conn2);


Of course you could have multiple connections on either node so you may need to use the nodeType command in a loop to verify results...

string $conn1[] = `listConnections -d 0 -s 1 lambert1`;
    for($c1 in $conn1) {
    	if(`nodeType $c1` == "blendColors") { 
    		string $conn2[] = `listConnections -d 0 -s 1 $conn1[0]`;
    		for($c2 in $conn2) {
    			if(`nodeType $conn2` == "file") {
    				print($conn2);
    			}
    		}
    	}
    }


-Ben
 
Old 02 February 2007   #3
list DG

Thanks analogue!

I've been looking for something that is more universal and where I don't have to worry about the depth of the connection so I can have a shading network with 20 or more nodes and few file texture nodes in that and I can quickly get a list of all these file nodes that end up in a specific material.
There is one command I found "dgInfo" that would make sense to use in this case but I could not make it work.
The solution is simplier than I thought because the listHistory does it all I just forgot about that a shading network is nothing else than a DG.

string $selectedShader[] = `ls -sl`;
string $DGlist[] = `listHistory $selectedShader`;
string $fileTextures[] = `ls -typ "file" $DGlist`;
print $fileTextures;
 
Old 02 February 2007   #4
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