a render & two questions

[myriac]

1) camera is on the high position from ground, and i want to make a very light blue sky without haze but no chance  (in this render i used image color adjustment in photoshop) so real tgd is very hazy. however haze is too low.i played so much with atmo settings and i failed for getting a clear atmo. how will i do it ?

2)i am trying to make arizona canyons but their top must be flat without changing body itself. i used power fractal so no chance using clip vertical peaks.i used some combinations among Power Fractal Shader, redirect shader etc. but it became entangled and i confused everything and gave up.this render is satisfying for me but i search for better. any idea about displacement settings to make real arizona canyons ?

[edlo]

For the atmo settings I think you should set the Haze density lower than 1 as well as the bluesky density.
Also set the Blue sky additive to something like0.5 or less and the red sky decay also to 0.5 or less; this should work.
For the canyon terrain you are trying to do you are better off getting a DEM of Arizona and work your strata and displacement into it.
Hope that helps.
ED.

[Njen]

You can clip a power fractal, but you have to build the terrain a slightly different way. Use a Surface Shader, and put a Power Fractal in the Displacement slot. Now you can control the displacement by your Power Fractal Colour using the Clamp high and low colour settings.

Cheers.

[myriac]

thx very much fellows 

[oggyb]

You can clip a power fractal, but you have to build the terrain a slightly different way. Use a Surface Shader, and put a Power Fractal in the Displacement slot. Now you can control the displacement by your Power Fractal Colour using the Clamp high and low colour settings.

Cheers.

Do you mean make a flat terrain but use the shaders to displace it into the shape you want?

M.

[Oshyan]

You may also want to experiment with the height settings in the atmosphere if you find it's too hazy low down.

For the terrain you may find a solution by increasing terrain and turning on clipping for High Color in the Power Fractal. Increasing Noise Variation and/or Clumping can create semi-plateaus as well. I think what you want to do is essentially possible with the existing controls at any rate, but a real non-heightfield clipping node would definitely be useful.

- Oshyan