Well,i have a probleme with a indirect shadow in my archviz rendering.
On my picture at number “1” i have a really great indirect shadow.Very nice!
But at “2” i have no indirect shadow,the chair fly…It’s a probleme for get a good realistic rendering…
I have change the scale to world setting to 0.9…0.8…0.5…0.2…0.1!..i have change the smooth to 0.6…I have build to preview,medium,production…but i have all ready the same probleme.He dont’s cast a indirect shadow to the small object…
The lack of shadowing from the chair legs is mostly due to the smoothing done by Lightmass to hide error in the indirect lighting. Small detail shadows are lost when this is done.
Things to try:
Make sure your lightmap resolution is high enough, there would need to be about 4 texels directly under the tiny chair legs to pick up those shadows
IndirectLightingQuality 4 or 6 combined with IndirectLightingSmoothness .6 (build times will go up)
Disable lightmap compression. There’s an option under WorldSettings → Lightmass
However, I think that even with all those increases to lighting accuracy, shadows of that size will not be picked up by Lightmass.
