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Old network
As of Houdini 20.5, use Copernicus nodes instead of Compositing nodes. Though both networks still exist, the Compositing network is now designated as COP Network - Old. The Compositing network and its nodes will be deprecated and then removed in a future Houdini release.
This operations blends frames from two sequences together using a simple linear blend. An optional third sequence can be used to specify the blend factor on a per-pixel basis.
Parameters ¶
Blend ¶
Blend Method
When a third input is not attached, a global blend is applied between the 2 inputs.
Use Blend Factor
Out = (1-Blend) Input1 + Blend Input2
Use Blend Weights
Out = Weight1 Input1 + Weight2 Input2
Blend Factor
Globally blends between input one (0) and two (1).
Input 1 Weight
If using blend weights, this specifies the factor to multiply input 1 by.
Input 2 Weight
This specifies the factor to multiply input 2 by.
Normalize Weights
If on, the weights will always be scaled to sum up to 1.
Blend Mask
If a third input is used to control the blending, this menu selects the plane or component to use as the blend mask. Black is input 1, white is input 2.
Invert Blend Mask
If on, black is input 2, while white is input 1.
Merge ¶
Overview
These parameters specify how to build the output sequence when there are differences between the input sequences.
Plane Merge
If the planes in the inputs differ, this specifies what the output planes should be.
Raster Depth
If the raster depth for a given plane differs between inputs, this specifies what the output raster depth for the plane should be.
Frame Range
If the frame ranges of the inputs differ, this determines what the output range should be.
Frame Rate
If the frame rates of the inputs differ, this determines what the output frame rate should be.
Frame Match
If the frame rates of the inputs differ, this determines which input frame to pick when the cook time doesn’t reside on a frame boundary.
Locals ¶
L
Sequence length
S
Start of sequence
E
End of sequence
IL
Input sequence length
SR
Sequence frame rate
NP
Number of planes in sequence
W,H
Width and height of image
I
Image index (0 at start frame)
IT
Image time (0 at start frame)
AI
Current plane array index
PI
Current plane index
PC
Num of channels in current plane
CXRES
Composite Project X resolution
CYRES
Composite Project Y resolution
CPIXA
Composite Project pixel aspect ratio
CDEPTH
Composite Project raster depth
CBP
Composite Project black point
CWP
Composite Project white point
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