Lighting For interior room

[brendeny]

Newbie here. Been playing around with Vray and the only problem I can't seem to to get right, is lighting reflections from Sun light, into a room. The sun light reflection on the floor and wall isn't as bright as I'd like and looks flat. What are the best settings for natural light for an interior room?

 

Example: My render on the left (default settings) Using SketchUp.

 

I want the sun reflection to hit the floor and wall like in the image on the right.

Edited January 18, 2017 by brendeny

[Francisco Penaloza]

Funny most people will ask for the opposite

It is all about exposure and color mapping.

If you reduce your exposure, the image will become bright and if you set your color mapping to a more default value then your white will burn faster. For example set your color mapping to linear and leave everything as default.

 

Needless to say if you take that image in to Photoshop and you apply some curves, those bright areas will become more more evident.

BTW you have some light leak around the windows frames but I guess you know that.

 

[brendeny]

Thanks for the reply.

 

I will play around with what you suggested. However, I find the sun reflection hitting the carpet material a-lot brighter then the wood floor, which would be unrealistic in the real world. The reflection for wood material is set to 0.95 so it should not be an issue.

 

(Will also need to sort out the light leaks issue )

[Francisco Penaloza]

That may be because the RGB value of your carpet texture is too height.

Check the level of that texture it should be about 80% not brighter than that.

[brendeny]

BTW you have some light leak around the windows frames but I guess you know that.

 

Any way to fix this issue as well?

[Francisco Penaloza]

well it depends of your geometry, assuming that everything is 1:1 scale and walls and frames are solid object, no one side mesh.

and depending what type of Gi are you using.

I am guessing Irradiance and light cache??

increasing the quality preset should do. If you want to try brute force for first bounce you'll eliminate many of those light leaks.

If problem still present, maybe eliminate the pre filter of LC or reduce the radius of your Irradiance.

If you post your setting it would be easy to pin point

[SkylineArch]

If you're new to SketchUp and Vray you can search google for "sketchup vray visopt" and find render presets others have made. Load them up and see what settings they had used. You can load the standard interior low preset over the top of those and save a lot of render time, and switch back to medium or high for your final renders.