in <MPG### [at] NEWS POVRAY ORG> Sander wrote:
>What causes the change in colour and why does
>the +R image look so flat?
>Settings:
<snip code>
>Just a low-quality R to start with.
>Is it the assumed_gamma? or the ambient_light?
The use of ambient_light makes the scene look flat as it brightens it.
You can probably delete it when using radiosity.
Also have a look at the diffuse values in the finish of your textures,
it determines the basic brightnes of a texture when using radiosity.
You use an assumed_gamma of 2.2, together with the preset
display_gamma of 2.2 this results in an image with a gamma of 1. A
gamma 1 picture will look somewhat dark on a gamma 2.2 monitor. It may
be that you compensated this by using stronger lights (value bigger
than 1) and the ambient_light.
When you set the assumed_gamma to 1, the image will have a gamma of
2.2. This will look more natural on your monitor. You may have to
reduce light intensities.
Ingo
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