原地址：http://www.it2down.com/it-mobile/426479.htm

 

当前位置:   »

unity3D打造skybox淡入淡出 - 移动开发

www.it2down.com   发布于：2013-6-18 21:54:54   

unity3D制作skybox淡入淡出

首先建立个shader

Shader "Custom/Skybox" {Properties {    _Tint ("Tint Color", Color) = (.5, .5, .5, .5)    _FrontTex ("Front (+Z)", 2D) = "white" {}    _BackTex ("Back (-Z)", 2D) = "white" {}    _LeftTex ("Left (+X)", 2D) = "white" {}    _RightTex ("Right (-X)", 2D) = "white" {}    _UpTex ("Up (+Y)", 2D) = "white" {}    _DownTex ("Down (-Y)", 2D) = "white" {}    _FrontTex2("2 Front (+Z)", 2D) = "white" {}    _BackTex2("2 Back (-Z)", 2D) = "white" {}    _LeftTex2("2 Left (+X)", 2D) = "white" {}    _RightTex2("2 Right (-X)", 2D) = "white" {}    _UpTex2("2 Up (+Y)", 2D) = "white" {}    _DownTex2("2 Down (-Y)", 2D) = "white" {}    _Color ("Fade (use alpha)", Color) = (1,1,1,1)}SubShader {    Tags { "Queue" = "Background" }    Cull Off    ZWrite On    ZTest Always    Fog { Mode Off }    Lighting Off           Color [_Tint]    Pass {        SetTexture [_FrontTex] { combine texture }        SetTexture[_FrontTex2] {             constantColor [_Color]            combine texture lerp (constant) previous        }    }    Pass {        SetTexture [_BackTex] { combine texture }        SetTexture[_BackTex2] {             constantColor [_Color]            combine texture lerp (constant) previous        }    }    Pass {        SetTexture [_LeftTex] { combine texture }        SetTexture[_LeftTex2] {             constantColor [_Color]            combine texture lerp (constant) previous        }    }    Pass {        SetTexture [_RightTex] { combine texture }        SetTexture[_RightTex2] {             constantColor [_Color]            combine texture lerp (constant) previous        }    }    Pass {        SetTexture [_UpTex] { combine texture }        SetTexture[_UpTex2] {             constantColor [_Color]            combine texture lerp (constant) previous        }    }    Pass {        SetTexture [_DownTex] { combine texture }        SetTexture[_DownTex2] {             constantColor [_Color]            combine texture lerp (constant) previous        }    }}Fallback "RenderFX/Skybox", 1}

材质间的动画转换

private var thisMaterial : Material;private var fadeSpeed : float = 0.4;function Start (){    thisMaterial = RenderSettings.skybox;    thisMaterial.color.a = 0.0;}function Update () {    thisMaterial.color.a += (fadeSpeed * Time.deltaTime);     thisMaterial.color.a = Mathf.Clamp(thisMaterial.color.a, 0.0, 1.0);}

skybox的纹理褪色，渐渐的转变。

public var blackTexture : Texture2D;function Start (){    thisMaterial = RenderSettings.skybox;    thisMaterial.color.a = 0.0;    thisMaterial.SetTexture("_FrontTex", blackTexture);    thisMaterial.SetTexture("_BackTex", blackTexture);    thisMaterial.SetTexture("_LeftTex", blackTexture);    thisMaterial.SetTexture("_RightTex", blackTexture);    thisMaterial.SetTexture("_UpTex", blackTexture);    thisMaterial.SetTexture("_DownTex", blackTexture);}function Update () {    thisMaterial.color.a += (fadeSpeed * Time.deltaTime);     thisMaterial.color.a = Mathf.Clamp(thisMaterial.color.a, 0.0, 1.0);}

设置纹理等

thisMaterial.SetTexture("_FrontTex2", textureVariable);