Unity Shader Graph 瓶装液体

最新推荐文章于 2025-06-08 14:43:44 发布

原创最新推荐文章于 2025-06-08 14:43:44 发布 · 3.1k 阅读

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这篇博客详细介绍了如何在Unity中实现毒液风格的物体抖动效果。作者通过Wobble类控制Shader参数，利用Sin函数创建波动，并结合物体速度和旋转产生衰减的颤动效果。关键代码涉及Lerp函数进行衰减控制，以及通过SetFloat方法将波动值传递给Shader。整个过程展示了Unity中动态改变材质属性以实现特殊视觉效果的技术。

结合了之前发的毒液 shader,整理一下再发连线图

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class Wobble : MonoBehaviour
{
    Renderer rend;
    Vector3 lastPos;
    Vector3 velocity;
    Vector3 lastRot;
    Vector3 angularVelocity;
    public float MaxWobble = 0.03f;
    public float WobbleSpeed = 1f;
    public float Recovery = 1f;
    public float wobbleAmountX;
    public float wobbleAmountZ;
    float wobbleAmountToAddX;
    float wobbleAmountToAddZ;
    float pulse;
    float time = 0.5f;

    // Use this for initialization
    void Start()
    {
        rend = GetComponent<Renderer>();
    }
    private void Update()
    {
        time += Time.deltaTime;
        // decrease wobble over time
        wobbleAmountToAddX = Mathf.Lerp(wobbleAmountToAddX, 0, Time.deltaTime * (Recovery));
        wobbleAmountToAddZ = Mathf.Lerp(wobbleAmountToAddZ, 0, Time.deltaTime * (Recovery));

        // make a sine wave of the decreasing wobble
        pulse = 2 * Mathf.PI * WobbleSpeed;
        wobbleAmountX = wobbleAmountToAddX * Mathf.Sin(pulse * time);
        wobbleAmountZ = wobbleAmountToAddZ * Mathf.Sin(pulse * time);

        // send it to the shader
        rend.material.SetFloat("_WobbleX", wobbleAmountX);
        rend.material.SetFloat("_WobbleZ", wobbleAmountZ);

        // velocity
        velocity = (lastPos - transform.position) / Time.deltaTime;
        angularVelocity = transform.rotation.eulerAngles - lastRot;


        // add clamped velocity to wobble
        wobbleAmountToAddX += Mathf.Clamp((velocity.x + (angularVelocity.z * 0.2f)) * MaxWobble, -MaxWobble, MaxWobble);
        wobbleAmountToAddZ += Mathf.Clamp((velocity.z + (angularVelocity.x * 0.2f)) * MaxWobble, -MaxWobble, MaxWobble);

        // keep last position
        lastPos = transform.position;
        lastRot = transform.rotation.eulerAngles;
    }



}