Lighting: GI problem

[claudio.rizzi]

here is my image....

[claudio.rizzi]

here is my image....

[claudio.rizzi]

Fro my image i used finalrender stage 1.5 for 3d studio max...

in this image you can see the settings...

I have placed on e omni light (raytraced shadows) autside of the room.

Why in my image the shadows are very different?

Rendering time 8h on Pentium III 866 512 Ram...

Tk at all

[windowlicker]

To start with, there are differences between your model itslef and the original building. Look closely and compare - then fix it.

I'm no FR man so i can't give you any tips on that, but since you run MAX5 I suggest you look into radiosity. I suppose radiosity is more accurate than GI, and you can also use realistic lighting (values in candela, correct fall-off and so on). Setting up the materials is imperative - to get the right amount of reflectance and the right value of the material is crucial for how much light that will be transferred into the building.

Also remember that what you have as a ref is a photo, and photographs aren't an exact depiction of reality. In photography the exposure "changes" the way things look, like how dark spots tend to look darker and bright spots brighter. Think about that when you work.
It's possible to use exposure settings in the MAX radiosity dialogue to mimic photos.

:wavey:

[Ian Christie]

As windowlicker said, you refference is a photo. The photographer set the apperature and shutter speeds, both combined effect the amount of light that reaches the film or ccd, so the widow wouldn't be just a bright glow. The downside of that is that shadows become darker. That's a result of the light sensitivity of the film, same thing happens with digital cameras. So a 3D render without special exposure settings, will create the picture more like how the eye actually saw it than how the film or ccd saw it. </end of photography basics lesson>

As windowlicker also pointed out, there are several differences between your scene and the photo. Most noticable is the materials used on everything in your scene, too much white. Try setting up a less reflective material with a dirtier look, yellowish brows (like in the picture) and some rough noise added or a texture. The window is also different, in your scene the glass areas are smaller than in the picture

The Scene looks really good though.\

[claudio.rizzi]

Thaks a lot to Windowlicker and Ian Christie for your help. End now...
Ok... I follow your hints and this is the result

It's better than before...

but the shadows don't like me....
I used softshadows but in my image the shadows looks like e raytrace...

This problem depends from GI of finalrender or is a my error?
Do you have any possible soluction?

Bye at all!!!

[claudio.rizzi]

Here's a final scene... maybe...

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