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Houdini supports a default display for height fields where
height fields is a grey surface and the
mask layer is colored red. This node lets you visualize elevation and visualize other mask layers (for example, the
mesa layer created by Height Field Clip and Height Field Terrace).
This node has two methods for visualizing:
This changes the default tinting, letting you visualize zero or one mask layer as a tint using a custom color ramp. If you want to visualize more than one layer, you need to use the Material controls instead.
This assigns a custom visualization material on the input. This is the only way to get the elevation ramp, and it also lets you visualize multiple layers using different colors. It might even be all you need if all you need for rendering is a simple color ramp. The only drawback is that it replaces any previously assigned material.
Visualize elevation using a color ramp
Visualize other mask layers
No Change: Use whatever tinting the input already has.
Replace whatever tinting the input has with the default: show the
height field as a medium gray surface with a red tint to show the
Custom Tinting: Show controls to show a mask field as a tint using a custom color ramp.
Remove any tinting from the input volumes. This will remove the default red tint showing the
The following parameters are visible when Update tinting is “custom”.
The name of the height layer to visualize as the 3D terrain surface. The default is
The name of the mask layer to visualize as a color tint on the 3D terrain.
Click to fill in the Diffuse range parameters using the current minimum and maximum values in the mask field.
The minimum and maximum values in the mask layer to map to the start and end of the color ramp.
Controls the use of the ramp. If set to No Ramp, the mask’s
values are used unclamped and unaffected by the ramp. Clamped Ramp
will clamp the mask’s values (after fitting to the range) to the
and then apply the ramp. Periodic Ramp will take the modulus of the
volume’s values with 1 and send that to the ramp. This can be useful to
create checkerboard or striped effect to better see large ranges of values.
The color ramp to use to visualize values in the mask layer, from 0 to 1 (or whatever values are in the Diffuse range parameters).
The following parameters are visible when Material is “custom”.
Controls the up direction when visualizing the erosion. If the visualization contains stripes of color, this is likely set to the wrong value.
Fill in the Min Elevation and Max elevation parameters using the current min and max values from the height field.
The minimum height value to map into the color ramp.
The maximum height value to map into the color ramp.
Maps height values in the height field (from Min elevation to Max elevation) into a color ramp to control coloring of the 3D height surface.
Enter the name of a mask layer and a color to visualize the layer as color on top of the elevation color ramp. Layer 9 appears over layer 8, which appears over layer 7, and so on.