Theatre style seating - help with lighting

[thevinylgibbon]

This is my current project to produce a set of still images showing the presentation facilities in a restaurant:

Modelled in ADT - Vizrender

 

Can anyone help me to get the lighting to behave as it does in real life. Everything is to scale, I've used IES files for the lights (from the manufacturers website) and I've used Architectural materials tweaked to represent everything that's currently there.

 

The lights are creating too strong shadows, and showing up on the walls. They are also distributing strangely from the diffuser. In real life the lights are much softer, and the shadows produced are very subtle.

The actual light fittings have a decorative glass fixture, which is made of 2 types of frosted glass.

I have used the standard frosted glass from Vizrender for this.

 

The things I know I need to address:

Correct texture mapping on floor & media panels

Reduce reflection on ceiling (from semi-gloss paint)

Revise materials on chairs

Reduce refelection on floor

Add entourage (blinds/plants)

Add curved neon light under lozenge

 

The image has rendered too grainy & washed out, my radiosity settings were:

 

Initial quality: 85%

Refine iterations: 10

Indirect light filtering: 1

Direct light filtering: 1

 

Using adaptive subdivision

Max mesh - 1000mm

Min mesh - 30mm

Contrast threshhold: 40

Initial mesh size - 300mm

 

Regather indirect illumination

Rays per sample: 128

Filter radius: 2.5

Clamp Values (cd/m^2): 10000

 

Environment:

 

Ambient: RGB 25

Logarithmic exposure

Brightness: 65

Contrast: 55

Midtones: 1.0

Physical scale: 1500

 

I have attached an image of my render, and a photo of the area I am trying to re-create:

[mwhite]

O.K. - Heres a dumb question since I'm not up to speed with the settings. It would appear that the lights in the real photo are on a dimmer - while the model lights are running at full setting from the IES file.

 

What happens if you 'dim' the lights/ies file?

 

 

Can't offer much much more than that - I'm still trying to figure out Vray.

[Yaseck]

I will only say: change the floor texture. This one looks terrible with this dark stain on it. When it's repeating it looks very render-like.

[thevinylgibbon]

The lights in the actual restaurant aren't on a dimmer, but as you say the one's in the photo don't look as bright. I will try turning these down, but it seems that the model infact needs more light...?

 

Textures do need work, especially the floor.

 

Can anyone help with the settings in Vizrender?

 

Cheers

[sunilarch]

your lighting is really right, except you hav to increase the quality of gi solution and few mapping issues. In the photograph your scene is lit by the flash of the camera and the auto exposure of the camera. imho ure render is right and ure photo is wrong

[thevinylgibbon]

No GI in Vizrender unfortunately, I'm relying on my radiosity solution...

[thevinylgibbon]

This is my latest update - I've modified some of the textures and sorted out the mapping issues. The lighting and the radiosity settings have remained the same.

 

I need to add the plants and the lecturn.

 

I'm still not happy with the grainyness of the rendering, is there something in the radiosity settings that could improve it?

 

Thanks

[thevinylgibbon]

I changed some of the settings to increase the quality & remove the grainyness:

 

Initial quality = 96%

Rays per sample = 150

Filter radius = 10

 

I think this is ready for the rest of the entourage...

 

Rendering time on this was ridiculous...my kingdom for a vray engine!!