Version: 2021.3
LanguageEnglish
  • C#

HandleUtility.placeObjectCustomPasses

Suggest a change

Success!

Thank you for helping us improve the quality of Unity Documentation. Although we cannot accept all submissions, we do read each suggested change from our users and will make updates where applicable.

Close

Submission failed

For some reason your suggested change could not be submitted. Please <a>try again</a> in a few minutes. And thank you for taking the time to help us improve the quality of Unity Documentation.

Close

Cancel

Description

Subscribe to this event to handle object placement in the SceneView.

This delegate is invoked by PlaceObject when drag and dropping objects from the Hierarchy and Project views.

using UnityEditor;
using UnityEngine;

static class PlaceObjectExample { static readonly Plane s_GroundPlane = new Plane(Vector3.up, Vector3.zero);

[InitializeOnLoadMethod] static void InitPlaceObjectHandler() { HandleUtility.placeObjectCustomPasses += PlaneRaycast; }

// In this example, we register a plane at the scene origin to test for object placement. static bool PlaneRaycast(Vector2 mousePosition, out Vector3 position, out Vector3 normal) { Ray worldRay = HandleUtility.GUIPointToWorldRay(mousePosition); float distance;

if (s_GroundPlane.Raycast(worldRay, out distance)) { position = worldRay.GetPoint(distance); normal = s_GroundPlane.normal; return true; }

position = Vector3.zero; normal = Vector3.up; return false; } }