简单瀑布（流水）效果

步骤

简单的瀑布效果，简单地分为以下四个步骤

• 网格

  

• 纹理及纹理的设置

  
  

• shader

Shader "Mobile/流水（Test）" {    Properties {        _TintColor ("Tint Color", Color) = (0.5,0.5,0.5,0.5)        _EmissiveStrength ("Emissive strength", Range (0,1)) = 0.5        _Translulency ("Translulency", Range (0,1)) = 1.0        _MainTex ("Base (RGB) Trans (A)", 2D) = "white" {}    }    SubShader {        Tags {"Queue"="Transparent" "IgnoreProjector"="True" "RenderType"="Transparent"}        LOD 200        Cull Off Lighting Off ZWrite Off        Blend SrcAlpha One        AlphaTest Greater .01        ColorMask RGB        CGPROGRAM        #pragma surface surf Lambert alpha            fixed4 _TintColor;            half _EmissiveStrength;            half _Translulency;            sampler2D _MainTex;            struct Input {                float2 uv_MainTex;            };            void surf (Input IN, inout SurfaceOutput o) {                half4 c = tex2D(_MainTex, IN.uv_MainTex);                //o.Albedo = 2*c*_TintColor;                o.Emission = 2*c*_TintColor*_EmissiveStrength;                o.Alpha = 2*(c.a /* (c.r+c.g+c.b)/3*/)*_Translulency;            }        ENDCG    }    Fallback "Transparent/Diffuse"}

• 脚本（修改瀑布对象的Material的Texture的Offset属性，即纹理的偏移量）

using UnityEngine;using System.Collections;public class uvAnimation : MonoBehaviour{    public int materialIndex;    public string textureName = "_MainTex";    public Vector2 uvAnimationRate = new Vector2(1f, 0f);    private Vector2 uvOffset = Vector2.zero;    private void LateUpdate()    {        uvOffset += (Vector2) (uvAnimationRate * Time.deltaTime);        if (GetComponent<Renderer>().enabled)        {            if(GetComponent<Renderer>().materials.Length > materialIndex){                GetComponent<Renderer>().materials[materialIndex].SetTextureOffset(textureName, uvOffset);            }        }    }}

演示效果