支持内置渲染管线中 GPU 实例化的表面着色器的示例

以下示例展示了如何为每种实例创建颜色值不同的实例化着色器在 GPU 上运行的程序。更多信息
在 词汇表 中查看 Surface。

Shader "Custom/InstancedColorSurfaceShader"
{
Properties
{
_Color ("Color", Color) = (1,1,1,1)
_MainTex ("Albedo (RGB)", 2D) = "white" {}
_Glossiness ("Smoothness", Range(0,1)) = 0.5
_Metallic ("Metallic", Range(0,1)) = 0.0
}

SubShader
{
Tags { "RenderType"="Opaque" }
LOD 200
CGPROGRAM
// Uses the physically based standard lighting model with shadows enabled for all light types.
#pragma surface surf Standard fullforwardshadows
// Use Shader model 3.0 target
#pragma target 3.0
sampler2D _MainTex;
struct Input
{
float2 uv_MainTex;
};
half _Glossiness;
half _Metallic;
UNITY_INSTANCING_BUFFER_START(Props)
 UNITY_DEFINE_INSTANCED_PROP(fixed4, _Color)
UNITY_INSTANCING_BUFFER_END(Props)
void surf (Input IN, inout SurfaceOutputStandard o) {
fixed4 c = tex2D (_MainTex, IN.uv_MainTex) * UNITY_ACCESS_INSTANCED_PROP(Props, _Color);
o.Albedo = c.rgb;
o.Metallic = _Metallic;
o.Smoothness = _Glossiness;
o.Alpha = c.a;
}
ENDCG
}
FallBack "Diffuse"
}