blur_bloom
Arguments:
- _amplitude>=0,_ratio>=0,_nb_iter>=0,_blend_operator={ + | max | min },_kernel={ 0=quasi-gaussian (faster) | 1=gaussian | 2=box | 3=triangle | 4=quadratic },_normalize_scales={ 0 | 1 },_axes
Description:
Apply a bloom filter that blend multiple blur filters of different radii,
resulting in a larger but sharper glare than a simple blur.
When specified, argument
axes is a sequence of
{ x | y | z | c }.
Specifying one axis multiple times apply also the blur multiple times.
Reference: Masaki Kawase, "Practical Implementation of High Dynamic Range Rendering", GDC 2004.
Default values:
amplitude=1, ratio=2, nb_iter=5, blend_operator=+, kernel=0,'normalize_scales=0' and axes=(all)
Example of use: