How hard would it be to convert this to a HDRI HDR file for use in Blender???
Could any do this for me?
Just curious…thanks!
Cujo
It’s kinda difficult creating a true HDR(High Dynamic Range) image out of a
LDR(Low Dynamic Range) image like the one you’re posting here…
//The M.h.p.e.
try cinepaint (formerly film gimp)…It has HDR abilities…
Ok…
I think I got a grip on how to “use” a HDRI thru the yaFray render in blender…
But a couple of questions…
For sake of render time… what is more important?
does OSA have to be selected to get anti-aliasing?
Is it better to have a low OSA and High samples for AA in the Yafray setup?
Or the opposite… High OSA with low samples…
I am just trying to find the nicest blend of settings for the best render time… rather than setting everything to max and waiting four hours…
Thanks for the insight and help with this…
Cujo
You can of course convert a single jpg to hdr, but it’s pointless, you don’t gain any information by this obviously. You need a series with different exposure settings and assemble them in e.g. HDR Shop.
About the settings, it depends on what exactly you do. If you use the irradiance cache the AA samples won’t directly affect the GI quality (well that’s the purpose of the cache really…) though without cache both AA and GI Samples (Quality setting in YafRay GI panel) affect it about equally, but twice the GI samples will still have less overhead than twice the AA samples (assumed that all samples are computed, wich due to adaptive threshold may not be the case) since no aditional primary rays need to be traced.
But image based lighting needs and upgrade anyway…right now you don’t really have an alternative to very high sample values.