Version: 2020.2
LanguageEnglish
  • C#

ParticleSystemRenderer.cameraVelocityScale

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

public float cameraVelocityScale;

Description

How much do the particles stretch depending on the Camera's speed.

Use this to make particles become larger if the viewing Camera has a large speed.

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour {

private ParticleSystem ps; private ParticleSystemRenderer psr; public ParticleSystemRenderMode renderMode = ParticleSystemRenderMode.Billboard; public float cameraScale = 0.0f; public float lengthScale = 0.0f; public float velocityScale = 1.0f;

void Start() {

ps = GetComponent<ParticleSystem>(); psr = GetComponent<ParticleSystemRenderer>();

psr.mesh = Resources.GetBuiltinResource<Mesh>("Capsule.fbx");

var main = ps.main; main.startSpeed = new ParticleSystem.MinMaxCurve(0.5f, 1.5f); main.startSize = new ParticleSystem.MinMaxCurve(0.1f, 0.8f); }

void Update() { psr.renderMode = renderMode; psr.cameraVelocityScale = cameraScale; psr.lengthScale = lengthScale; psr.velocityScale = velocityScale;

if (renderMode == ParticleSystemRenderMode.Stretch) Camera.main.transform.position = new Vector3(Mathf.Sin(Time.time) * 4.0f, 0.0f, -10.0f); // move the camera so we can see the effect on stretch camera velocity }

void OnGUI() { renderMode = (ParticleSystemRenderMode)GUI.SelectionGrid(new Rect(25, 25, 900, 30), (int)renderMode, new GUIContent[] { new GUIContent("Billboard"), new GUIContent("Stretch"), new GUIContent("HorizontalBillboard"), new GUIContent("VerticalBillboard"), new GUIContent("Mesh"), new GUIContent("None") }, 6);

if (renderMode == ParticleSystemRenderMode.Stretch) {

GUI.Label(new Rect(25, 80, 100, 30), "Camera Scale"); GUI.Label(new Rect(25, 120, 100, 30), "Length Scale"); GUI.Label(new Rect(25, 160, 100, 30), "Velocity Scale");

cameraScale = GUI.HorizontalSlider(new Rect(125, 85, 100, 30), cameraScale, 0.0f, 10.0f); lengthScale = GUI.HorizontalSlider(new Rect(125, 125, 100, 30), lengthScale, 0.0f, 10.0f); velocityScale = GUI.HorizontalSlider(new Rect(125, 165, 100, 30), velocityScale, 0.0f, 10.0f); } } }
Copyright © 2023 Unity Technologies
优美缔软件(上海)有限公司 版权所有
"Unity"、Unity 徽标及其他 Unity 商标是 Unity Technologies 或其附属机构在美国及其他地区的商标或注册商标。其他名称或品牌是其各自所有者的商标。
公安部备案号:
31010902002961