LlGroundNormal
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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 |
The requested position needs to be in the same region. Only the x and y coordinates in offset are important, the z component is ignored.
Specification
This function is defined as:
vector llGroundNormal(vector offset) { vector slope = llGroundSlope(offset); return <slope.x, slope.y, 1.0>; }
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 |
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