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I made these pages to document how each setting in the new Terragen 2 program works. If you have any questions or comments, feel free to email me on: ryan AT motionmagnetic DOT com.

These pages is as basic as it gets, and is purely to provide visual reference to what each setting does when changed on it's own.

Note: You can find my other pages here:
Heightfield Generate Settings
Quality Settings

The first image of each row is a 'low' value of that particular setting, the second one is always the same, as it's the default settings, while the last image is a 'high' value.

Each thumbnail is linked to a larger version of the image.

Scene Description:
Render Detail = 0.9
Anti-Aliasing = 3
All Samples (atmosphere and clouds) = 64 or greater


 Atmosphere

Primary Only Secondary Only Primary and Secondary

Main	Haze Density = 1 Haze Density = 4 Haze Density = 20 Haze Horizon Colour = 0.05 Haze Horizon Colour = 0.35 Haze Horizon Colour = 0.95 Bluesky Density = 1 Bluesky Density = 2 Bluesky Density = 10 Bluesky Horizon Colour = 0.05 Bluesky Horizon Colour = 0.45 Bluesky Horizon Colour = 0.95

Lighting

Haze Glow Amount = 0 Haze Glow Amount = 1.5 Haze Glow Amount = 4 Haze Glow Power = 0 Haze Glow Power = 0.75 Haze Glow Power = 1 Bluesky Glow Amount = 0 Bluesky Glow Amount = 0.25 Bluesky Glow Amount = 4 Bluesky Glow Power = 0 Bluesky Glow Power = 0.75 Bluesky Glow Power = 1

Tweaks

Ambient = 0 Ambient = 1 Fake Dark Power = 0 Fake Dark Power = 1 Fake Dark Sharpness = 0 Only visable when Fake Dark Power is greater than 0. Here it's set to 1 Fake Dark Sharpness = 10 Only visable when Fake Dark Power is greater than 0. Here it's set to 1 Fake Dark Sharpness = 20 Only visable when Fake Dark Power is greater than 0. Here it's set to 1

 3D Volumetric Clouds - Cumulus

Main	Cloud Depth = 100 Cloud Depth = 500 Cloud Depth = 1000 Cloud Depth = 2000 (included because it looks cool!)

Edge Sharpness = 0.5 Edge Sharpness = 5 Edge Sharpness = 50 Cloud Density = 0.0005 Cloud Density = 0.006 Cloud Density = 0.9 (1024 cloud samples!) Coverage = -1 Coverage = 0 Coverage = 1 Cloud Colour = 0 Cloud Colour = 0.35 Cloud Colour = 1 Cloud Scatter = 0 Cloud Scatter = 0.5 Cloud Scatter = 1

Lighting

Sun Glow Amount = 0 Sun Glow Amount = 1.5 Sun Glow Amount = 4 Sun Glow Power = 0 Sun Glow Power = 0.75 Sun Glow Power = 1 Light Propagation = 0 Light Propagation = 2 Light Propagation = 4 Light Propagation Mix = 0 Light Propagation Mix = 0.125 Light Propagation Mix = 1 Fake Internal Scattering = -0.5 Fake Internal Scattering = 0.25 Fake Internal Scattering = 0.5

Tweaks

Ambient = 0 Ambient = 1 Fake Dark Power = 0 Fake Dark Power = 1 Improved Lighting Model = off Improved Lighting Model = on Invert Profile = on (Improved Lighting Model = on) Wispy Base = on (Improved Lighting Model = on) Flatter Base = on (Improved Lighting Model = on) Softer Base = on (Improved Lighting Model = on)