Unity升级管线的注意事项

Unity升级管线的注意事项

一月 18, 2022

升级渲染管线在PM中下载 Universal RP

材质记得替，不如会出现洋红色

使用的简单的建模工具

在pm包中有不错的东西

在游戏中进行简单的建模可以用ProBuilder和Polybrush这两个包进行修改地形的顶点

ProGrids做方格的校准

阴影部分

百人计划说的很详细了

简单着色样例

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Shader "CustomLit"
{
    Properties
    {
        _MainTex("主贴图", 2D) = "white" {}
    }
        SubShader
        {
        Tags { "RenderType" = "Transparent" "Queue" = "Transparent" }
        Pass
        {
            Blend SrcAlpha OneMinusSrcAlpha
            Tags
            {
                "LightMode" = "UniversalForward"
            }
            //Zwrite off
            HLSLPROGRAM
            #pragma vertex vert
            #pragma fragment frag

            #pragma multi_compile _ _MAIN_LIGHT_SHADOWS
            #pragma multi_compile _ _MAIN_LIGHT_SHADOWS_CASCADE
            #pragma multi_compile _ Anti_Aliasing_ON

            #include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Core.hlsl"
            #include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Lighting.hlsl"

            struct appdata
            {
                float4 vertex : POSITION;
                float4 uv : TEXCOORD0;

            };

            struct v2f
            {
                float4 pos : SV_POSITION;
                float2 uv : TEXCOORD0;
                float3 worldPos : TEXCOORD1;
            };

            sampler2D _MainTex;
            float4 _MainTex_ST;

            v2f vert(appdata v)
            {
                v2f o;
                o.pos = mul(UNITY_MATRIX_MVP, v.vertex);
                o.worldPos = mul(unity_ObjectToWorld, v.vertex);
                o.uv = TRANSFORM_TEX(v.uv, _MainTex);

                return o;
            }

            float4 _Color;

            float4 frag(v2f i) : SV_Target
            {
                float4 SHADOW_COORDS = TransformWorldToShadowCoord(i.worldPos);

                Light mainLight = GetMainLight(SHADOW_COORDS);
                half shadow = MainLightRealtimeShadow(SHADOW_COORDS);

                return float4(shadow, shadow, shadow,1);
            }
            ENDHLSL
        }
         UsePass "Universal Render Pipeline/Lit/ShadowCaster"
        //pass {
        //    Name "ShadowCast"

        //    Tags{ "LightMode" = "ShadowCaster" }
        //    HLSLPROGRAM
        //    #pragma vertex vert
        //    #pragma fragment frag
        //    #include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Core.hlsl"

        //        struct appdata
        //    {
        //        float4 vertex : POSITION;
        //    };

        //    struct v2f
        //    {
        //        float4 pos : SV_POSITION;
        //    };

        //    sampler2D _MainTex;
        //    float4 _MainTex_ST;

        //    v2f vert(appdata v)
        //    {
        //        v2f o;
        //        o.pos = mul(UNITY_MATRIX_MVP, v.vertex);
        //        return o;
        //    }
        //    float4 frag(v2f i) : SV_Target
        //    {
        //        float4 color;
        //        color.xyz = float3(0.0, 0.0, 0.0);
        //        return color;
        //    }
        //    ENDHLSL
        //}
    }
}

在这里插入图片描述

HDR解码函数

由于hlsl函数没有了。

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 half3 DecodeHDR    (half4 data, half4 decodeInstructions) {
    // Take into account texture alpha if decodeInstructions.w is true(the alpha value affects the RGB channels)

    half alpha = decodeInstructions.w * (data.a - 1.0) + 1.0  ;
    // If Linear mode is not supported we can skip exponent part 
#if defined (UNITY_COLORSPACE_GAMMA) 
 return   (decodeInstructions.x * alpha) * data.rgb; 
#else
    #if defined (UNITY_USE_NATIVE_HDR)
        return decodeInstructions.x * data.rgb;
    // Multiplier for future HDRI relative to absolute conversion. 
    #else return (decodeInstructions.x *  pow (alpha, decodeInstructions.y)) * data.rgb;
    #endif        
#endif
}

  1. 1. 升级渲染管线在PM中下载 Universal RP
  2. 2. 使用的简单的建模工具
  3. 3. 阴影部分
  4. 4. 简单着色样例
  5. 5. HDR解码函数