Very new to Blender and have been following this tutorial Create a Realistic Forest in 30 Minutes
While composting [21:32 in the tutorial], he connects the "Render Layers" depth pin to the "MapValue" value pin. Upon CTRL + SHIFT + LEFT-MOUSE-CLICK and adjusting the Offset/UseMaximum/UseMinimum vaues on the "MapValue" node, he gets a nice stacks of layers.
I begin off in a similar fashion:
However, when I try connecting the "Render Layers" and the "MapValue" nodes and attach it to the "Viewer" node, I get a complete black screen. Can any one tell why?
Any help much appreciated!