LlGroundNormal

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/LSL

GroundNormal

llGroundNormal

Summary

Function: vector llGroundNormal( vector offset );

222	Function ID
0.0	Forced Delay
10.0	Energy

Returns a vector that is the ground  normal from the current position + offset.

• vector

offset

–

offset relative to the prim's position and expressed in local coordinates

Only the x and y coordinates in offset are important, the z component is ignored. The requested position needs to be in the same sim.

Specification

This function is defined as: <lsl> vector llGroundNormal(vector offset) {

   vector slope = llGroundSlope(offset);
   return <slope.x, slope.y, 1.0>;

} </lsl>

Caveats

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Examples

Notes

• There seems to some confusion be between a Surface Normal (the direction from the surface) and Normalized Vector (a vector with a magnitude of 1.0, AKA Unit Vector). This function does not return a unit vector. Surface normals may encode additional information in the magnitude of the vector.if you need a Unit Vector, simply use llVecNorm.

See Also

Functions

•	llGround	–	Gets the ground height
•	llGroundContour	–	Gets the ground contour
•	llGroundSlope	–	Gets the ground slope

Deep Notes

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Signature
function vector llGroundNormal( vector offset );