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Heightfield Project

fields/heightfield-project·v1.5.1

IN:2 OUT:1

SUMMARY

Heightfield Project rasterizes the triangles of the geometry in its second input into the height field along the up axis, without ray tracing, so it runs the same on macOS and Windows. Where the geometry covers a sample, its highest or lowest surface plus Offset is combined with the layer; uncovered samples keep their value.

Combine with Existing defaults to Maximum, which stamps shapes onto the terrain, with Replace, Add, Multiply and Minimum also available. Edge Smoothing turns the step at the edge of the shape into a smooth ramp, and Coverage Layer writes where the geometry covers the field as a falloff for later operators.

PARAMETERS

PAGEProject

Layer	Layer	The layer the projected surface is written to.
[+]Hit	Hit	Where the geometry overlaps itself over a sample, uses its highest or its lowest surface along the up axis.
[+]Combine with Existing	Combineop	How the projected height combines with the layer. Samples the geometry does not cover keep their value.
Offset	Offset	Adds an offset to the projected height, in world units.
Edge Smoothing	Edgesmooth	Softens the edge of the projected shape over this many samples, turning the one-sample step into a smooth ramp. 0 keeps the hard edge.
Coverage Layer	Coveragelayer	When set, writes 1 where the geometry covers a sample and 0 elsewhere into this layer (a falloff).
Do Falloff	Dofalloff	Weight the effect on each point by the Falloff Attribute.
Falloff Attribute	Falloffattr	The point attribute, 0 to 1, that weights the effect.
Invert Falloff	Invertfalloff	Uses one minus the falloff attribute.
Falloff Strength	Falloffstrength	Scales the effect of the falloff attribute.
[+]Border	Border	Determines how samples outside the height field are read at its edges. Streak repeats the edge value, Constant uses Border Value, Repeat wraps around.
Border Value	Bordervalue	The height read outside the height field when Border is Constant.

PAGECommon

Bypass	Bypass	Pass through the first input to the output unchanged.
Free Extra GPU Memory	Freeextragpumem	Free memory that has accumulated when output memory has grown and shrunk.

INPUTS

Input 0 POP - Heightfield

Input 1 POP - Geometry to Project

OUTPUTS

Output 0 POP - Heightfield