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Limiting a materials light dynamic
Hi all,
I have made some hills which are being lit by a sun object. The light is fine on the flat surface but too bright on the hill itself. However, if I turn the brightness of the sun down to a point where the light is pleasing on the hill, the flat surface is too dark.
Is there a way of limiting the materials light responsiveness so that the dynamic between light and dark is not so extreme?
Many thanks,
Jack -
4 Replies
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Sounds like your light is pointing at the hill from an angle, making the hill brighter. The general way to fix the blowout problem is to reduce the brightness of the key light and add one or fill lights that are directed more at the flat areas.
If you want to use one light your could use a fresnel shader in the color channel to affect the brightness of the landscape based upon the angle of incidence from the camera. Or you could experiment with the falloff shader.
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Thanks for the reply Adam!
I definitely want to use just the one light source as this scene is going to be complex enough as it is.
When you say use a frasnel shader, do you mean on the landscape? I already have a loaded into that and so can’t load the frasnel shader aswell……. or is there a way of loading two textures in the colour pannel?many thanks!
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You can use multiple shaders in a channel by way of the Layer Shader, which works like Photoshop layers. In this case you would multiply fresnel on top your existing color channel material.
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another good way to darken is the Diffusion channel, you might want to try a fresnel etc in that
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