This is a newb question and I hope you all will be patient. The answer should be simple (I hope.).
I obtain gif and shp files from flying a drone and processing the images with DroneDeploy. The 1ft contour map created in QGIS from these two layers is very accurate. I would like to create elevation profiles so downloaded the Terrain Profile plug-in. But I understand I have to use an interpolation tool first and so downloaded the Raster Interpolation plugin. That tool wants to save the interpolation to a "destination" layer. I have none to choose from; the drop-down box is blank. I have a raster (gif) and a shape layer (shp). How do I create a destination layer for the interpolation? And then, once I have the interpolation, will the Terrain Profile plug-in automatically use it?