Landscape Window


The Landscape Window is used to control the colour and surface texture of the terrain. Each layer is treated as a separate 'image' which has some transparent areas which allow the layers beneath it to become visible. The various parameters are used to control the size and shape of these transparent areas and to control the surface texture. It is best to start with a plain base layer with a second layer on top. Experiment with the second layer's parameters, altering one at a time and performing a test render to understand the effect.

Note that the more layers there are in the list, the longer it will take to render. The POV-Ray rendering calculations are performed separately for each layer and then overlaid on each other, so doubling the number of layers would effectively double the surface calculation time when rendering the terrain.


Surface Layer List

Click to select the surface layer that you wish to edit.

NOTE: The list is actually displayed in REVERSE. ie: the top layer is at the bottom and the base layer is at the top!

Add Layer

Click to add a new surface layer to the terrain.


Deletes the current surface layer from the scene. (You cannot delete the final layer - there must be at least one layer in a scene)


Move the current layer up or down in the layer order.


Enter a name to describe the current grass layer.

Layer Colour

Select a colour for this layer

Texture File

Click the (...) button to select an image file for this layer. Click the cross (X) to delete the current image file. If an image file is selected then this overrides the Layer Colour.

NOTE: Currently only the BASE LAYER (top of the layer list) can use an image file as a texture. Hopefully, later versions of POV-Ray will allow more than one image file to be used.

Stretch to fit entire terrain

If ticked then the image file is stretched to cover the entire terrain.

Tile Size X/Y

If Stretch To Fit Entire Terrain is unticked then the image file is scaled to these values and repeated over and over.


Sets the overall transparency for this layer.

Diffuse light

Sets the proportion of diffuse light (sun light) is reflected by this layer.

Ambient light

Sets the proportion of ambient light (a general overall light value to prevent totally black shadows) that is reflected by this layer.

Min Slope/Max Slope

These parameters are currently disabled as POV-Ray does not support slope-based textures. However, there is a chance that this feature will possible with POV-Ray v3.5. Keep a watch on the Forester web-site for updates.

Use Height Parameters

If ticked then this layer will be only be visible between the specified values.

Minimum Height/Maximum Height

Enter minimum and maximum altitude boundaries for this layer to occur between.

Height Tolerance

This defines the amount of 'blurring' at the altitude boundaries specified above.


This defines how much the layer will cover any layers beneath it.


This defines how blurred the edges of this layer will be. ie: How quickly the surface goes from being fully transparent to fully opaque.

Patch Size

This defines the size of each 'patch' for this layer. Smaller patches result is a more blotchy appearance.

Surface Style

Select from one of the 5 texturing options.


This defines the roughness of the surface (ie: The vertical height of the peaks and troughs of the bump map)


Grain Size

This defines the size of the grain of the surface (ie: The horizontal distance between the peaks and troughs of the bump map).
Note that the LOWER the grain size the HIGHER the apparent graininess.





Individual Layer


Combination with
previous Layers


Base layer
Plain Green Texture




Rock Layer
Coverage: 80%
Blurriness: 40%
Patch Size: 80


More Grass
Coverage: 50%
Blurriness: 100%
Patch Size: 50
Transparency: 30%
Max height: 35


River Bed
Coverage: 100%
Blurriness: 50%
Patch Size: 80
Maximum Height: 14


Sandy River Banks
Coverage: 80%
Blurriness: 25%
Patch Size: 25
Maximum Height: 15
Minimum Height: 13


Snow Layer 1
Coverage: 100%
Blurriness: 15%
Patch Size: 85
Minimum Height: 45


Snow Layer 2
Coverage: 100%
Blurriness: 0%
Patch Size: 70
Minimum Height: 50

(Water Level: 15)