Feature request: Bloom about panda3d-complexpbr

[rayanalysis]

Thanks for the feature request. I will look into how I can adapt something like the CommonFilters bloom (which is supported, at the expense of screenspace_init() currently) to the native postprocessing.

[rayanalysis]

Bloom has now been implemented. See these sample screenshots and feature Usage notes below. The bloom_intensity defaults to 0.0 (off).

example of how to set up bloom -- complexpbr.screenspace_init() must have been called first

screen_quad = base.screen_quad

bloom_intensity = 5.0 # bloom defaults to 0.0 / off
bloom_blur_width = 10
bloom_samples = 6
bloom_threshold = 0.7

screen_quad.set_shader_input("bloom_intensity", bloom_intensity)
screen_quad.set_shader_input("bloom_threshold", bloom_threshold)
screen_quad.set_shader_input("bloom_blur_width", bloom_blur_width)
screen_quad.set_shader_input("bloom_samples", bloom_samples)