Thank you ! I will try it !You can resolve this by using emmissive lights rather than spotlights. You can see my earlier post as linked below to see method / results.
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Edit - Further Notes:
The light emitted from spotlights has a single origin hence will make hard shadows. Emmissive surfaces however project light in every direction from every point on their surface. If you want a reasonably harsh shadow use a smaller emmission surface with higher intensity. If you want a softer shadow, use a larger surface with a lower intensity.
Our experience was that in Daz, light is the hardest thing to master. To help us we studied books on photography light and television lighting (relevant because TV is still a 2D medium and the tricks apply here).
80% of the realism in a scene will come from lighting. It will add contours, define textures, and provide all the visual cues the eyes needs to process the image. It's powerful stuff.
At the very least, learn a bit about a three light rig (Key, Fill, Backlight). You can do a lot just by mixing up these three lights with different angles and intensities. Totally worth the time!
Best of luck mate. Cheers!
Thank's man ! Yeah light is very important and very hard to understand at the same time. I'll check some video about the three lights rig, as you said.