Shader 屏幕后期特效 Shake(震屏)&Wave(波纹)
震屏效果
Shader:
////////////////////////////////////////////
///// CameraPlay - by VETASOFT 2017 /////
//////////////////////////////////////////// Shader "CameraPlay/Shake" {
Properties
{
_MainTex ("Base (RGB)", 2D) = "white" {}
_TimeX ("Time", Range(0.0, 1.0)) = 1.0
_ScreenResolution ("_ScreenResolution", Vector) = (.,.,.,.)
}
SubShader
{
Pass
{
ZTest Always
CGPROGRAM
#pragma vertex vert
#pragma fragment frag
#pragma fragmentoption ARB_precision_hint_fastest
#pragma target 3.0
#pragma glsl
#include "UnityCG.cginc"
uniform sampler2D _MainTex;
uniform float _TimeX;
uniform float _Value;
uniform float _Value2;
uniform float _Value3;
uniform float4 _ScreenResolution;
struct appdata_t
{
float4 vertex : POSITION;
float4 color : COLOR;
float2 texcoord : TEXCOORD0;
};
struct v2f
{
float2 texcoord : TEXCOORD0;
float4 vertex : SV_POSITION;
float4 color : COLOR;
};
v2f vert(appdata_t IN)
{
v2f OUT;
OUT.vertex = UnityObjectToClipPos(IN.vertex);
OUT.texcoord = IN.texcoord;
OUT.color = IN.color;
return OUT;
} float nrand(float2 n)
{
return frac(sin(dot(n.xy, float2(12.9898, 78.233)))* 43758.5453);
} float4 frag (v2f i) : COLOR
{
float2 uv = i.texcoord.xy;
float t = float(int(_TimeX * _Value));
float2 suv = float2(,);
suv.x = uv.x + _Value2 * nrand(t);
suv.y = uv.y + _Value3 * nrand(t + 23.0);
suv.x -=_Value2/;
suv.y -=_Value3/;
float3 col = tex2D(_MainTex,suv).rgb;
return float4(col,1.0);
}
ENDCG
}
}
}
Controller:
////////////////////////////////////////////
///// CameraPlay - by VETASOFT 2017 /////
//////////////////////////////////////////// using UnityEngine; public class ShakeController : MonoBehaviour
{
[HideInInspector] public Shader m_shader;
private float m_time = 1.0f;
private Vector4 m_screenResolution;
private Material m_material;
[HideInInspector] public float m_value = 0.5f;
[HideInInspector] public float m_size = 1f;
[HideInInspector] public float m_duration = 1f;
[HideInInspector] private float m_timer = 1f;
[HideInInspector] public float m_speed = 15f; Material material
{
get
{
if (m_material == null)
{
m_material = new Material(m_shader);
m_material.hideFlags = HideFlags.HideAndDontSave;
}
return m_material;
}
}
void Awake()
{
m_value = ;
m_timer = ;
m_shader = Shader.Find("CameraPlay/Shake");
if (!SystemInfo.supportsImageEffects)
{
enabled = false;
Debug.Log("手机不支持后处理...");
return;
} m_duration = 0.2f;
m_speed = ;
m_size = ;
} // Start Animation
void OnEnable()
{
m_value = ;
m_timer = ;
} void OnRenderImage(RenderTexture sourceTexture, RenderTexture destTexture)
{
if (m_shader != null)
{
m_time += Time.deltaTime;
if (m_time > ) m_time = ;
material.SetFloat("_TimeX", m_time);
material.SetFloat("_Value", m_speed);
material.SetFloat("_Value2", m_size * 0.008f);
material.SetFloat("_Value3", m_size * 0.008f);
material.SetVector("_ScreenResolution", new Vector4(sourceTexture.width, sourceTexture.height, 0.0f, 0.0f));
Graphics.Blit(sourceTexture, destTexture, material);
}
else
{
Graphics.Blit(sourceTexture, destTexture);
}
}
void Update()
{ m_timer += Time.deltaTime * ( / m_duration);
if (m_timer > 1.1f) /*Object.Destroy(this);*/
this.enabled = false;
}
void OnDisable()
{
if (m_material)
{
DestroyImmediate(m_material);
}
}
}
使用方法:
1.Shader和Controller拖进项目。Shader还要丢到Edit - Project Settings -Graphics 的Always included Shaders 中
2.摄像机上挂载对应脚本,控制脚本的Enable属性即可
杂谈:
Shader控制震屏比animation控制更简单,而且不易出错
波纹效果
Shader:
////////////////////////////////////////////
///// CameraPlay - by VETASOFT 2017 /////
//////////////////////////////////////////// Shader "CameraPlay/ShockWave"
{
Properties
{
_MainTex("Base (RGB)", 2D) = "white" {}
_TimeX("Time", Range(0.0, 1.0)) = 1.0
_ScreenResolution("_ScreenResolution", Vector) = (.,.,.,.)
}
SubShader
{
Pass
{ ZTest Always
CGPROGRAM
#pragma vertex vert
#pragma fragment frag
//#pragma fragmentoption ARB_precision_hint_fastest
#pragma target 3.0
//#pragma glsl
#include "UnityCG.cginc"
uniform sampler2D _MainTex;
uniform float _TimeX;
uniform float _Value;
uniform float _Value2;
uniform float _Value3;
uniform float _Value4;
uniform float4 _ScreenResolution;
uniform float2 _MainTex_TexelSize; struct appdata_t
{
float4 vertex : POSITION;
float4 color : COLOR;
float2 texcoord : TEXCOORD0;
};
struct v2f
{
float2 texcoord : TEXCOORD0;
float4 vertex : SV_POSITION;
float4 color : COLOR;
};
v2f vert(appdata_t IN)
{
v2f OUT;
OUT.vertex = UnityObjectToClipPos(IN.vertex);
OUT.texcoord = IN.texcoord;
OUT.color = IN.color;
return OUT;
}
float4 frag(v2f i) : COLOR
{
float2 uv = i.texcoord.xy;
float2 uv2 = uv;
#if UNITY_UV_STARTS_AT_TOP
if (_MainTex_TexelSize.y < )
uv.y = - uv.y;
#endif
float Dist = distance(uv, float2(_Value, _Value2));
float Diff = (Dist - _Value3);
float v = (1.0 - pow(abs(Diff * 10.0), 0.8));
float vt = v * 0.02 * _Value4;
vt = saturate(vt);
uv2.x = uv2.x - vt;
uv2.y = uv2.y - vt;
float4 Color = tex2D(_MainTex, uv2);
Color.rgb += float3(vt, vt, vt); return Color;
}
ENDCG
}
}
}
Controller:
/***************************************
Editor: Tason
Version: v1.0
Last Edit Date: 2018-XX-XX
Tel: 328791554@qq.com
Function Doc: ***************************************/ using UnityEngine; public class WaveController : MonoBehaviour
{
[HideInInspector] public Shader m_shader;
private float m_time = 1.0f;
private Vector4 m_screenResolution;
private Material m_material;
[HideInInspector] public float m_posX = 0.5f;
[HideInInspector] public float m_posY = 0.5f;
[HideInInspector] public float m_value = 0.5f;
[HideInInspector] public float m_size = 1f;
[HideInInspector] public float m_duration = 1f;
[HideInInspector] private float m_timer = 1f; Material material
{
get
{
if (m_material == null)
{
m_material = new Material(m_shader);
m_material.hideFlags = HideFlags.HideAndDontSave;
}
return m_material;
}
} void Awake()
{
m_value = ;
m_timer = ;
m_shader = Shader.Find("CameraPlay/ShockWave");
if (!SystemInfo.supportsImageEffects)
{
enabled = false;
Debug.Log("手机不支持后处理...");
return;
} m_posX = 0.5f;
m_posY = 0.5f;
m_duration = 1.5f * ;
m_size = ;
} void OnRenderImage(RenderTexture sourceTexture, RenderTexture destTexture)
{
if (m_shader != null)
{
m_time += Time.deltaTime;
if (m_time > ) m_time = ;
material.SetFloat("_TimeX", m_time);
material.SetFloat("_Value", m_posX);
material.SetFloat("_Value2", m_posY);
material.SetFloat("_Value3", m_value);
material.SetFloat("_Value4", m_size);
material.SetVector("_ScreenResolution", new Vector4(sourceTexture.width, sourceTexture.height, 0.0f, 0.0f));
Graphics.Blit(sourceTexture, destTexture, material);
}
else
{
Graphics.Blit(sourceTexture, destTexture);
}
} void OnEnable()
{
m_value = ;
m_timer = ;
} private void Update()
{
m_timer += Time.deltaTime * ( / m_duration);
if (m_timer > 1.1f)
//Object.Destroy(this);
this.enabled = false; m_value = m_timer;
} void OnDisable()
{
if (m_material)
{
DestroyImmediate(m_material);
}
}
}
使用方法同“震屏”(同上)
资源链接:
链接:https://pan.baidu.com/s/1ZcSskWxi3wMgYOU9rg4o-g 密码:vzfn
修改:
1.Ondisable 中注释掉 DestroyImmediate() 函数!不需要销毁材质!
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