Shader "Lineage/URP/ice" { Properties { [Header(Texture)] [Enum(Off,0,On,1)]_Zwrite("Zwrite",int)=0 _MainTex("RGB(diffuse)),A:(OA))", 2D) = "white" {} [Normal]_Normal("normal",2D)="bump"{} _SpecTex("RGB(SpecTex),A(SpecTex_pow)",2D)="white"{} _EmiTex("RGB:emisstion",2D)="black"{} _Cubmap("Cubmap",Cube)="_skybox"{} [Header(Diffuse)] [HDR]_MainCol("diffuseColor",color) = (1,1,1,1) _EnvDiffInt("EnvDiffInt",range(0,1))=0.2 _EnvUpCol("topColor",color)=(1,1,1,1) _EnvSideCol("SideColor",color)=(0.5,0.5,0.5,1) _EnvDownCol("DownColor",color)=(1,1,1,1) [Header(specular)] [PowerSlider(0.5)]_SpecPow("SpecPow",range(1,200))=10 _EnvSpecInt("EnvSpecInt",range(0,5))=1 _FresnelPow("FresnelPow",range(0,10))=1 _CubemapMip("CubemapMip",range(1,7))=0 [Header(Emission)] [HDR] _EmiCol("emission",color)=(1,1,1,1) _EmitInt("emissionIntensity",Range(1,10))=1 _mask("mask",2D) = "white" {} // // _dissolve("溶解贴图",2D) = "white" {} // // _CutOffIntensity("溶解强度",range(0,1))=0 // _CufOffSoft("软硬",range(0,0.5))=0 _NormalScale("normalScale",range(0,1.5))=1 _Light("LightPosition",vector)=(0,0,0,0) _distor("distorIntensity ",range(0,1))=0 } SubShader { Tags { "Queue"="Transparent" "IgnoreProjector" = "True" "RenderPipeline" = "UniversalPipeline" } LOD 100 // Blend SrcAlpha OneMinusSrcAlpha Pass { // Tags{"LightMode"="ShadowCaster"} ZWrite [_Zwrite] // ZTest LEqual HLSLPROGRAM // Required to compile gles 2.0 with standard srp library #pragma prefer_hlslcc gles #pragma exclude_renderers d3d11_9x #pragma vertex vert #pragma fragment frag #pragma multi_compile_fog #include "Packages/com.unity.render-pipelines.core/ShaderLibrary/Color.hlsl" #include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Core.hlsl" #include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Lighting.hlsl" struct Attributes { float4 positionOS : POSITION; float2 uv : TEXCOORD0; float4 normal :NORMAL; float4 tangent:TANGENT; }; struct Varyings { float4 positionCS : SV_POSITION; float4 uv : TEXCOORD0; float4 posWS : TEXCOORD1;//世界空间顶点坐标 float4 nDirWS : TEXCOORD2;//法线 float3 tDirWS : TEXCOORD3;//切线 float3 bDirWS : TEXCOORD4;//负切线 float4 uv2:TEXCOORD5; float2 normaluv:TEXCOORD6; }; CBUFFER_START(UnityPerMaterial) float4 _MainTex_ST,_dissolve_ST,_Normal_ST,_EmiTex_ST; half4 _MainCol,_EnvUpCol,_EnvSideCol,_EnvDownCol,_EmiCol; half _EnvDiffInt,_CubemapMip; half4 _Light; float _SpecPow,_EnvSpecInt,_FresnelPow,_EmitInt,_CutOffIntensity,_distor,_NormalScale; CBUFFER_END TEXTURE2D (_MainTex);SAMPLER(sampler_MainTex); TEXTURE2D (_Normal);SAMPLER(sampler_Normal); TEXTURE2D (_SpecTex);SAMPLER(sampler_SpecTex); TEXTURE2D (_mask);SAMPLER(sampler_mask); TEXTURE2D (_dissolve);SAMPLER(sampler_dissolve); TEXTURE2D (_CameraOpaqueTexture); SAMPLER(sampler_CameraOpaqueTexture); // TEXTURE2D (_EmiTex);SAMPLER(sampler_EmiTex); TEXTURECUBE (_Cubmap);SAMPLER(sampler_Cubmap); Varyings vert(Attributes v) { Varyings o = (Varyings)0; o.uv2.xy=v.uv; o.uv2.zw= v.uv; o.positionCS = TransformObjectToHClip(v.positionOS.xyz); o.uv.xy = TRANSFORM_TEX(v.uv, _MainTex); o.uv.zw=TRANSFORM_TEX(v.uv, _EmiTex); o.normaluv=TRANSFORM_TEX(v.uv, _Normal); o.posWS.xyz=TransformObjectToWorld(v.positionOS.xyz);//位置OS>WS o.nDirWS.xyz=TransformObjectToWorldNormal(v.normal.xyz); o.tDirWS.xyz = TransformObjectToWorldDir(v.tangent.xyz);//本地切线>世界 half sign = v.tangent.w * GetOddNegativeScale(); o.bDirWS.xyz =normalize (cross(o.nDirWS.xyz, o.tDirWS) * sign); return o; } half4 frag(Varyings i) : SV_Target { //采样扭曲 i.uv2.xy+=_Time.y*0.01; half distor = SAMPLE_TEXTURE2D(_SpecTex, sampler_SpecTex, i.uv2.xy).r; half2 distorintensity=lerp(i.uv.xy,i.uv.xy*distor.r,_distor); //向量准备 //法线采样解码 TBN矩阵将切线空间法线转世界空间 // UnpackNormalScale 区别于 UnpackNormal 多了个参数调节发现强度 half3 normalMap = UnpackNormalScale(SAMPLE_TEXTURE2D(_Normal, sampler_Normal, i.normaluv),_NormalScale); half3 normalWS = mul(normalMap,half3x3(i.tDirWS.xyz, i.bDirWS.xyz, i.nDirWS.xyz)); float2 ScreenUV=i.positionCS.xy/_ScreenParams.xy; float3 VdirWS=normalize(_WorldSpaceCameraPos.xyz - i.posWS.xyz); float3 VRdirWS=reflect(-VdirWS,normalWS);//反射 //获取光源 Light mainLight = GetMainLight(); // half3 lDirWS=normalize(mainLight.direction);//灯光位置 half3 lDirWS= _Light.xyz; half3 lrDirWS=reflect(-lDirWS,normalWS); //根据入射光方向向量 I ，和顶点法向量 N ，计算反射光方向 //准备点击 float NdotL=dot(normalWS,lDirWS);//漫反射 float vDotr=dot(VdirWS,lrDirWS);//phong 高光 float vDotN=dot(VdirWS,normalWS);//菲尼尔 //纹理采样 half4 mask = SAMPLE_TEXTURE2D(_mask,sampler_mask, i.uv.xy); half4 var_MainTex = SAMPLE_TEXTURE2D(_MainTex, sampler_MainTex, distorintensity); half4 var_SpecTex = SAMPLE_TEXTURE2D(_SpecTex, sampler_SpecTex, i.uv.xy); half2 GrafTexRUV=ScreenUV+ScreenUV*normalWS.xy*_Light.w; half4 GrafTexR=SAMPLE_TEXTURE2D(_CameraOpaqueTexture,sampler_CameraOpaqueTexture,GrafTexRUV); half4 A; // A= lerp(GrafTexR,var_MainTex,mask*_Light.w); // return GrafTexR*var_SpecTex; half4 var_EmiTex = SAMPLE_TEXTURE2D(_EmiTex, sampler_EmiTex, distorintensity); // return var_EmiTex.x; half3 var_Cubmap = SAMPLE_TEXTURECUBE_LOD(_Cubmap, sampler_Cubmap, VRdirWS,lerp(_CubemapMip,0,var_SpecTex.a)).rgb;//lerp(_CubemapMip,0,var_SpecTex.a //光照模型(直接光照) float3 baseCol=var_MainTex.xyz*_MainCol.xyz; float3 speCol=var_SpecTex.rgb; float lambert=max(00.2,NdotL); float specPow=lerp(1,_SpecPow,var_SpecTex.a); // specPow*=_EmiCol; var_Cubmap*=var_SpecTex.a; //高光 float phong=pow(max(0,vDotr),specPow); float3 dirLighting=((baseCol*lambert+phong*speCol)*mainLight.color);// *****mainLight.color灯光颜色亮度***** //环境光 float upMask=max(0,normalWS.g); float downMask=max(0,-normalWS.g); float sideMask=1-upMask-downMask; float3 encCol=_EnvUpCol.rgb*upMask+_EnvSideCol.rgb*sideMask+_EnvDownCol.rgb*downMask; float3 envDiff=baseCol*encCol*_EnvDiffInt; // return half4(envDiff,1); //环境镜面反射 float frsnel= pow(max(0,1-vDotN),_FresnelPow); float3 envSpec=var_Cubmap*frsnel*_EnvSpecInt;// 地裂不需要 // float3 envSpec=0; //漫反射 镜面反射混合 float occlusion=var_MainTex.a;//环境遮挡 float3 envLighting=(envDiff+envSpec)*occlusion; //自发光 float emisSinTime=(sin((_Time.z))+1.5); float3 emission=var_EmiTex.rgb*_EmitInt*_EmiCol.rgb*emisSinTime*(envSpec); //溶解 -0.2为了让面板0 到1 更好看 // float alpha2=smoothstep((_CutOffIntensity-0.2),_CutOffIntensity-0.2+_CufOffSoft,cutoffTex.r); //最终混合 float3 finaRGB=dirLighting+envLighting+emission*1; half4 c=1; c.rgb=finaRGB+frsnel; // return saturate(max(0.4,frsnel*var_SpecTex.a)); half GrabLerp=saturate(max(0.6,frsnel*var_SpecTex.a*mask.r)); c.rgb=lerp(c.rgb,GrafTexR.rgb,GrabLerp); // c.a*=alpha2; return c; } ENDHLSL } } }