Open Nuke and start working. First, assign the project settings (Project Settings >Edit > Project Settings, or a hot key (S)). On the right side of the screen we can open a tab where we can change or set parameters. From the menu full size format option you can select the format of a project if you have it, but for now we're going to create a new one. Choose New and a new format window will appear where we can specify the size (2000 to 1333 pixels in the File Size line) and set the project name (Pontiak_GTO65) to avoid misunderstandings (Fig.22).
Nuke works with image and video files through links. Let's load our passes. We do this through a Read node. From the Tool bar, which is on the left side, select Image > Read, or use the hot key (R), or press the Tab key and type Read. A Read File(s) window will appear, which is where we can specify the file path (Fig.23).
First, load VRay_Global Illumination and VRay_Lighting. We need to use the Merge node to connect these two passes. In the Tool bar go to Merge > Merge, or hit hot key (M). These three options can be applied to all nodes, so we don't need to repeat it each time. I will use the option from the Tool bar. The Merge node has channels A and B. The basic picture should be loaded into channel B, and the picture to be added should be loaded in channel A. By holding the arrows and moving them to our passes we get the image shown in Fig.24, but in the Viewer window the image is black.
In order to see what we've got, we need to go into the Viewer node, which you can do by going to Image > Viewer node or selecting the Merge node by pressing 1. The Viewer 1 node can be connected to several other nodes and can be switched via the keyboard by pressing the required number. Whatever number we press, that node will be displayed in the viewer (Fig.25).