help blurry shadows

hi, I’m mew on vray for rhinoceros, i just did a rendering and the shadows are blurry (like frosted)how can i avoid that?

Re: help blurry shadows

If you are using rectangular lights, large rectangular lights produce soft shadows, while small lights produce sharp shadows. Omni light and spotlight by default produce hard shadows. So I guess you are using rectangular light, if that is true you have to use small rectangular lights, but this will affect the reflection.
If you are using only the GI, there no way to get sharp shadows with only the GI.