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Working with Connections |
The nodes in a structure provide the underlying computations, but it is the connections between the nodes that determine what is calculated. They are shown as lines that go between the little nubs of a node (nubs on the top are inputs, nubs on the bottom are outputs). Data then "flows" from the top of the diagram to the bottom - from the coordinate of the pixel to final color. To edit these connections:
1. Click on the output of a node, and drag. A line will appear from that output to the mouse. 2. Drag to the input of another node - it will hilight when you are over it. Release to compete the connection (at which point the image will redraw reflecting the new set of calculations - the structure itself may reorder to reflect this new data flow). 3. To remove a connection, click on the destination node's input, and drag the connection away from that input (you can drag it to another input if you desired). 4. To connect a series of outputs in parallel, hold down the shift key when you select the output of the node - all outputs to the right will also be connected with it. 5. If the node only has a single output, holding down the shift key will cause all the inputs that it is connected to to be wired to that output as well. |
Just remember to drag from an output to the input to add a connection, and drag from the input to remove or change a connection.