URP - 最简单的不受光(unlit)shader

 

Shader "My/URP_Unlit" {Properties {_MainTex ("Texture", 2D) = "white" {}}SubShader {Tags {"RenderPipeline" = "UniversalPipeline" //这是用于URP的shader"RenderType" = "Opaque"}HLSLINCLUDE#include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Core.hlsl"//所有属性都要缓存到CBuffer中, 这样才能兼容SRP Batcher
        CBUFFER_START(UnityPerMaterial)float4 _MainTex_ST;CBUFFER_ENDENDHLSLPass {Tags { "LightMode" = "UniversalForward" } //渲染pass
HLSLPROGRAM#pragma vertex vert //指定顶点着色器函数#pragma fragment frag //指定片元着色器函数struct Attributes { //程序传入顶点着色器的数据float4 vertex : POSITION; //用模型空间顶点坐标填充该变量float2 uv : TEXCOORD0; //用模型的第一套纹理坐标(uv)填充该变量
            };struct Varings { //顶点着色器传入片元着色器的数据
                float2 uv : TEXCOORD0;float4 vertex : SV_POSITION; //该变量存放了裁剪空间的顶点坐标
            };//变量
            TEXTURE2D(_MainTex);SAMPLER(sampler_MainTex);Varings vert(Attributes v) { //顶点着色器
                Varings o;VertexPositionInputs positionInputs = GetVertexPositionInputs(v.vertex.xyz); //顶点坐标从模型空间转裁剪空间o.vertex = positionInputs.positionCS;o.uv = TRANSFORM_TEX(v.uv, _MainTex); //应用贴图的tiling和offsetreturn o;}float4 frag(Varings i) : SV_Target { //片元着色器(逐像素)float4 c = SAMPLE_TEXTURE2D(_MainTex, sampler_MainTex, i.uv); //根据纹理坐标获取像素颜色return c;}ENDHLSL}}
}

 

参考

【Unity Shader】在URP里写Shader（二）：从一个Unlit Shader开始 - 知乎

URP初试 - 简书