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Exponential Blur

Brief Description

The Bloom filter sums multiple blur filters of different size, resulting in a larger but sharper glare than a simple blur. It is similar to applying \"Count\" separate Blur modifieers to the same input image with sizes 'Size', 'Size''Ratio', 'Size''Ratio'^2, etc., and averaging the results.

Controls

Parameter / Script Name Type Default Function
Enabled / enabled Boolean On
Red / process_red Boolean On Enable the red channel in output. Otherwise if there's a source the content of the main source is returned instead, else 0
Green / process_green Boolean On Enable the green channel in output. Otherwise if there's a source the content of the main source is returned instead, else 0
Blue / process_blue Boolean On Enable the blue channel in output. Otherwise if there's a source the content of the main source is returned instead, else 0
Alpha / process_alpha Boolean On Enable the alpha channel in output. Otherwise if there's a source the content of the main source is returned instead, else 0
Size / size Float 2D 0, 0 Maximum blur size applied. Higher values extend the edges of thhe mask further.
Count / Count Float 5 Number of blur kernels of the bloom filter. Higher values give a wider tail. A count of 1 is just the original blur.
Ratio / ratio Float 2 Ratio between successive kernel sizes of the bloom filter. A ratio of 1 gives no Bloom effect, just the original blur.
Bounding Box / rod_mode Choice Expand
- Expand
- Crop to format
- Same as input
Filter / filter Choice Gaussian
- Gaussian
- Box
- Triangle
- Quadratic
Border / border Choice Repeat RGB Black Alpha
- Repeat
- Black
- Repeat RGB Black Alpha
Crop To Composition Format / crop_source_to_comp Boolean On Useful to increase performances when doing large blurs of the size of the composition if you don't care that the intensities outside the comp get properly blurred.
Downscale Threshold / downscale_threshold Float 15 When the size of the blur exceeds this threshold, the image is downscaled before blurring and upscale in output, which approximates what the blur would do a much faster speed. Increasing this value increases quality at the cost of processing speed.
Mask / mask Image -
Mix / mix_with_source Float 1 Dissolves between the original image at 0 and the image with the effect applied at 1