Node that interpolates linearly between several images based on a weight. The different input images are uniformly distributed in the 0 to 1 range:
if two images are set, the first one is 0.0 and the second one is 1.0
if three images are set, the first one is 0.0 the second one is 0.5 and the third one 1.0 regardless of the input slots used: If B and C are set, but not A, B will be at weight 0 and C will be at weight 1