Update 14 is here:
Some major upheaval and improvement took place since the last update.
Soft Shadows now use a substantially improved PCSS calculation courtesy of stgatilov
Also, there is always a minimum amount of softening as a way to obscure aliasing artifacts
at the low resolution bounds of the shadow map.
In short, shadows are more physically correct, better looking, and almost all aliasing artifacts are
Also, tentative work has been done to setup per light-entity light center size attributes so different lights can have different amounts of softening.
For the shadow map softness, the slider will no longer work as the override is now a negative number.
r_shadows = 2
r_testARBProgram = 1
r_softShadowsRadius = -0.65 or 1
r_shadowMapSize = 1024 or 1440
r_softShadowsQuality = 24 or greater
Note: You can even go lower on the Shadow Map size due to the new minimum shadow softening feature. Give it a try.