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Apply Mask Inverted
Enabling the Apply Mask Inverted option inverts the complete mask channel for the tool. The mask
channel is the combined result of all masks connected to or generated in a node.
Multiply by Mask
Selecting this option causes the RGB values of the masked image to be multiplied by the mask
channel’s values. This causes all pixels of the image not included in the mask (i.e., set to 0) to become
black/transparent.
Use Object/Use Material (Checkboxes)
Some 3D software can render to file formats that support additional channels. Notably, the EXR file
format supports Object ID and Material ID channels, which can be used as a mask for the effect. These
checkboxes determine whether the channels are used, if present. The specific Material ID or Object ID
affected is chosen using the next set of controls.
Correct Edges
This checkbox appears only when the Use Object or Use Material checkboxes are selected. It toggles
the method used to deal with overlapping edges of objects in a multi-object image. When enabled,
the Coverage and Background Color channels are used to separate and improve the effect around the
edge of the object. If this option is disabled (or no Coverage or Background Color channels are
available), aliasing may occur on the edge of the mask.
For more information on the Coverage and Background Color channels, see Chapter 18,
“Understanding Image Channels,” in the Fusion Reference Manual or Chapter 78 in the
DaVinci Resolve Reference Manual.
Object ID/Material ID (Sliders)
Use these sliders to select which ID is used to create a mask from the object or material channels of an
image. Use the Sample button in the same way as the Color Picker: to grab IDs from the image
displayed in the viewer. The image or sequence must have been rendered from a 3D software
package with those channels included.
Motion Blur
– Motion Blur: This toggles the rendering of Motion Blur on the tool. When this control is toggled
on, the tool’s predicted motion is used to produce the motion blur caused by the virtual camera’s
shutter. When the control is toggled off, no motion blur is created.
– Quality: Quality determines the number of samples used to create the blur. A quality setting of
2 causes Fusion to create two samples to either side of an object’s actual motion. Larger values
produce smoother results but increase the render time.
– Shutter Angle: Shutter Angle controls the angle of the virtual shutter used to produce the motion
blur effect. Larger angles create more blur but increase the render times. A value of 360 is the
equivalent of having the shutter open for one full frame exposure. Higher values are possible and
can be used to create interesting effects.
– Center Bias: Center Bias modifies the position of the center of the motion blur. This allows for the
creation of motion trail effects.
– Sample Spread: Adjusting this control modifies the weighting given to each sample. This affects
the brightness of the samples.
Hide Incoming Connections
Enabling this checkbox can hide connection lines from incoming nodes, making a node tree appear
cleaner and easier to read. When enabled, empty fields for each input on a node will be displayed in
the Inspector. Dragging a connected node from the node tree into the field will hide that incoming
connection line as long as the node is not selected in the node tree. When the node is selected in the
node tree, the line will reappear.
Chapter 114Resolve Connect 2262
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