How to recolor the deep buffer data in Nuke 7

The DeepRecolor node is used to merge deep buffer files (contains per sample opacity values) and standard 2D color image. This node spreads the color across all samples using the per sample opacity values.

Read in the deep image that contains per sample opacity values and the color image. Add a DeepRecolor node from the Deep menu. Connect the depth input of the DeepRecolor node with the deep image. Next, connect the color input of the DeepRecolor node with the 2D color image.

Note: If the color image is premultiplied, add an Unpermult node between the Read and DeepRecolor nodes.

On selecting the target input alpha check box, the alpha of the color image is distributed among the deep samples. As a result, when you flatten the image later, the resulting alpha will match the alpha of the color image. If this check box is clear, the DeepRecolor node distributes the color to each sample by unpremultiplying by the alpha of the color image and then remultiply by the alpha of each sample. As a result, the alpha generated by the DeepColor node will not match with the alpha of the color image.