Blackmagic Design DV/RES/BBPNLMIC User Manual

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Bitmap Mask [BMP]

The Bitmap node

Bitmap Mask Node Introduction

The Bitmap mask node allows images from the node tree to act as masks for nodes and effects.

Bitmap masks can be based on values from any of the color, Alpha, hue, saturation, luminance, and

auxiliary coverage channels of the image. Nodes can also be masked based on the Object ID or

Material ID of a 3D-rendered image (provided those channels were included when the file was

rendered).

The Bitmap mask node is not required for effect masks. For effects masks, the Common Settings tab

for the masked node displays controls to select which channel of the mask image is used to

create the mask.

However, Bitmap mask nodes may still be required to connect to other mask inputs on some nodes,

such as Garbage Mattes and Pre-Masks. Also, using a Bitmap mask node between the mask source

and the target node provides additional options that would not be available when connecting directly,

such as combining masks, blurring the mask, or clipping its threshold.

Inputs

The Bitmap mask node includes two inputs in the Node Editor.

– Input: The orange input accepts a 2D image from which the mask will be created.

– Effect Mask: The optional blue input expects a mask shape created by polylines, basic

primitive shapes, paint strokes, or bitmaps masks. Connecting a mask to this input combines

the masks. How masks are combined is handled in the Paint mode menu in the Inspector.

Basic Node Setup

The Bitmap mask node is not required for connecting an image into the effect mask input, but it does

provide options that are otherwise unavailable. It allows for selecting channels other than RGBA for the

mask, as well as softness and clipping. In the node tree below, the two Bitmap masks are combined

using a Paint menu located in the second Bitmap mask node, which allows you to add, subtract,

multiply, and perform other operations on the combined mask.

Bitmap nodes can be chained together for more advanced matte operations.

Chapter 106Mask Nodes 2029

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Blackmagic Design DV/RES/BBPNLMIC DaVinci Resolve Micro Panel with Resolve Studio Software