Lidar 3D Scanning Look

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11.10.2025

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Modeling

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Houdini 21

Raycasting points from a sphere into a scene to simulate Lidar scanning.

Projecting the points back on a screen using its UV coordinates.

vector uv = v@uv;

float phi = uv[0] * 2.0 * PI;
float theta = uv[1] * PI;

v@P = set(phi, theta, 0.0);

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