Mewa User's Guide/Footage node
About the Footage nodeEdit
Footage is any image, sequence of images or video file imported into Mewa.
Differently from all nodes, which are added from the node list (button ), footage nodes are added from Mewa's file browser. Imported footage from the file browser appears in the node-graph as a new node. The node has the name of the imported file.
The footage node represents a sequence of frames of the imported file(s). It outputs a single image for each different frame number.
All footage nodes in the node-graph have a correspondent bar in the curve editor bar view mode. Curves in Mewa can be represented as curves and as horizontal bars. Horizontal bars have the benefit of representing curves in a constrained time scale in the form of a horizontal bar. To switch to bar view mode click on curve editor button to expand the curve editor window and then click on to switch to bar view mode. Footage bars are only visible in bar view mode and are visible different from all other bars.
The footage bar occupies the length of the footage in frames. The bar can be moved horizontally by dragging the bar. The starting position of the bar is the frame number where the first frame of the footage will be shown. Shifting the footage bar moves the starting time of the footage back and forward.
Using the footage bar it's also possible to trim or hold the first/last frames of the footage. Trimming erases frames from the begin/end of the footage. Holding a frame repeats the first or last frame at the begin or end of the footage. Hold and trim is done by dragging one of the handlers located at the begin or end of the footage bar. Shortening the bar size trims frames, while extending the size of the bar adds holding frames.
Start at Frame shows the frame number in which the (footage) starts.
Hold 1st frame shows how many frames the first frame of the footage is being held. A negative value of Hold frames means the footage is being trimmed from the beginning of the footage.
Draw frames shows how many frames the footage node outputs. A number smaller than the total number of frames means the footage is trimmed at the end. A number bigger than the total number of frames means the last frame of the footage is held by the extra amount.
A status bar message is displayed while hovering the mouse cursor over a footage node. This status bar message shows the footage resolution, number of frames and the footage file name.