Method
This node outputs a value based the luminescence values of specific pixels from a video input.
Example Nodegraph |
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Attributes
Name |
Description |
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Sample Location U |
Point along the U axis that is sampled. |
Sample Location V |
Point along the V axis that is sampled. |
Smoothing |
The amount of smoothing to applied to the output value. |
Scale |
The scale/range of the modifier |
Operation |
The operation to be performed on the targeted parameter.
- Add, adds to the parameter value.
- Subtract, subtracts from the parameter value.
- Multiply, multiplies the parameter value.
- Replace, replaces the parameter value.
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Latency Mode |
How the video is sampled with respect to performance.
- Performance, The video is sampled with some latency, to avoid stalling the GPU and giving higher performance.
- Low Latency (Slower), The video value is sampled immediately, stalling the GPU but giving the lowest possible latency.
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Location In Pixels |
The sample location describes the location in pixels, not a percentage along width and length. |
Inputs
Name |
Description |
Typical Node Input |
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Video Node |
The video node from which values will be generated. |
Video Loader |
Outputs
The output is a numeric value that acts upon a connected parameter input of another node, using the operation method selected.