unity3D制作一个冰面的shader
时间: 2023-11-17 17:08:18 浏览: 50
好的,下面是一个简单的Unity3D制作冰面效果的shader:
```
Shader "Custom/IceShader" {
Properties {
_MainTex ("Texture", 2D) = "white" {}
_BumpMap ("Bump Map", 2D) = "bump" {}
_ReflectColor ("Reflection Color", Color) = (1,1,1,1)
_ReflectAmount ("Reflection Amount", Range(0,1)) = 0.5
_Shininess ("Shininess", Range(0,1)) = 0.1
}
SubShader {
Tags { "RenderType"="Opaque" }
LOD 100
CGPROGRAM
#pragma surface surf Standard
sampler2D _MainTex;
sampler2D _BumpMap;
float4 _ReflectColor;
float _ReflectAmount;
float _Shininess;
struct Input {
float2 uv_MainTex;
float3 worldPos;
float3 worldNormal;
};
void surf (Input IN, inout SurfaceOutputStandard o) {
// Albedo comes from the texture
o.Albedo = tex2D(_MainTex, IN.uv_MainTex).rgb;
// Normal map
o.Normal = UnpackNormal(tex2D(_BumpMap, IN.uv_MainTex));
// Reflection
float3 viewDir = normalize(UnityWorldSpaceViewDir(IN.worldPos));
float3 reflection = reflect(viewDir, IN.worldNormal);
float3 reflColor = texCUBE(_Cube, viewDir).rgb * _ReflectColor.rgb * _ReflectAmount;
float3 iceColor = reflColor + (1.0 - _ReflectAmount) * o.Albedo;
o.Metallic = 1.0;
o.Smoothness = _Shininess;
o.Albedo = iceColor;
}
ENDCG
}
FallBack "Diffuse"
}
```
这个shader中使用了一个反射效果来模拟冰面反光的效果,同时使用了一个法线贴图来让冰面看起来更加真实。你可以根据自己的需要修改代码中的参数来达到不同的效果。