o i c...thx karina i'll try it...
btw i'm using vray for sketchup 1.49
thx

hmmm...sorry..newbie talking.."what do u mean in "black" or "white"? *sorry...
my emissive mat is not intersecting w/ other geometry,but i put it in one group w/other material (is that okay?*i'll try it)
btw, thx karina

hi everyone, i have some problem here...would somebody help me...please
i tried to rendering a room with some cave light using emissive material but im not very satisfied with the result. ive upload the picture...

see that red rectangle...on the left rectangle, the light is more like a fire, but it have a different result when the wall is white, the light is so smooth. *what must i do to make the light smoother on the wall?either in white or black wall?
on the right rectangle...the render result seem so bad, the picture looks like i drawn it with watercolor...what must i do to make it smoother?

thx