I have a portion of my model where things look both too bright and dark, in different parts of that “room”. I was able to get things looking good in Sketchup itself, but those light and dark setting changes seem to have no effect in the VRay rendering (even though changing date and time in Sketchup does affect the VRay rendering).
How may I get VRay to respond to my Shadow light and dark settings in Sketchup? I tried shutting off “Sunlight”, but that just left everything looking very dark.
Can you post some screen shots of what you’ve got? SketchUp’s lighting is very simplistic, and at times not even realistic, while V-Ray’s capabilities are very broad and complicated and in some ways very realistic, and in others not (think light sources not visible to the camera). It’s undoubtedly possible, but the answer is probably more complicated than a one or two sentence post. (Like “Just click this check box and you’re good.”)
In general, the first two primary light source elements in photography are called Key Light and Fill Light, and the two sliders in SketchUp kind of follow that paradigm, but doing that in V-Ray may need attention to the fill light in particular – like with a dome light or maybe something else – depends on the subject.
There appears to be a partial ceiling casting a shadow almost exactly on the tiled walls (plus a little tiny bit on the tub). That certainly contributes to them being darker than everything else. There seems to be a light fixture or something floating in space above and out of the frame that’s casting a funny spot shadow on the left end of the tub.
First thing to look at is the light source, which I’m guessing is just daylight so far. If that’s the only source, AND it’s turned off, everything would be dark.
Yes…what you mention would definitely cast shadow, but I do not want it to such a large degree. So I made adjustments with Sketchup’s light and dark adjustments until the differences were as I want them. Is there any way for VRay to match those? If not, how can I make adjustments for light and dark in a similar manner within VRay. If not possible, I will probably have to learn how to make “lights” in the model actually work and light the room in various places.
I just found what caused the problem with the render coming up nearly black…I didn’t realize the zoom got affected by my touchpad, and I am having technical problems with it where it was zoomed out to how dark the tile is rendering on the long wall of the shower and tub area.
Is there any way for VRay to match Sketchup’s light and dark shadow adjustments until the differences were as I want them. If not, how can I make adjustments for light and dark in a similar manner within VRay? Does VRay even allow such adjustments?
V-Ray may get the time of day from SketchUp, but I don’t think the two sliders for light/dark have any effect on V-Ray. I’m uncertain about adjusting the regular sky in V-Ray, but you certainly could add a HDR physical sky. I do recommend the SketchUp campus courses on V-Ray that @eric-s created. I’m no master of V-Ray myself.