升级到URP后原来做粒子效果的Shader不能用了，请高人帮忙修改下...

查看：2587 |回复：6 | *2021-7-29 15:48:22* 26134 · 2021-7-29 15:48:22

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本帖最后由 newmung 于 2021-7-29 15:49 编辑

我试着修改了下
1、把fixed，fixed4改成float，float4，虽然没报错了，但不知道对不对；
2、UnityObjectToWorldNormal，UnityObjectToClipPos找到对应的方式替换了；
3、UNITY_FOG_COORDS，UNITY_APPLY_FOG_COLOR，LIGHTING_COORDS 没找到URP对应的修改，不知道怎么处理。
附上原Shader代码：

Shader "Custom/ParticleShader"
{
Properties
{
_MainTex("Main Texture", 2D) = "white" {}
_Color("Color", Color) = (1,1,1,1)
[Enum(UnityEngine.Rendering.BlendMode)] _SrcBlend("SrcBlend", Float) = 5
[Enum(UnityEngine.Rendering.BlendMode)] _DstBlend("DstBlend", Float) = 1
[Enum(UnityEngine.Rendering.CullMode)] _FaceCull("FaceCull", Float) = 2
[Enum(Off, 0, On, 1)] _ZWrite("ZWrite", Float) = 0
[Enum(UnityEngine.Rendering.CompareFunction)] _ZTest("ZTest", Float) = 2
_OffsetFactor("OffsetFactor", float) = 0
_Luminance("Luminance", Range(0.0, 10.0)) = 1
_AlphaCullingBias("Alpha Culling Bias", Range(0.0, 1.0)) = 0.0
[Toggle(_LIGHTTING_ON)] _LighttingEnable("Enable Lighting", Float) = 0
[Toggle(_MASK_TEXTURE_ON)] _MaskTextureEnable("Enable Mask Texture", Float) = 0
_MaskTex("Mask Texture", 2D) = "white" {}
_MaskTexAnimSpeedU("MaskTex Animation Speed U", Range(-100.0, 100.0)) = 0
_MaskTexAnimSpeedV("MaskTex Animation Speed V", Range(-100.0, 100.0)) = 0
[Toggle(_FRESNEL_ON)] _FresnelEnable("Enable Fresnel", Float) = 0
_FresnelPow("FresnelPow", Range(-10.0, 10.0)) = 1
_FresnelIntensity("FresnelIntensity", Range(-10.0, 10.0)) = 1
_FresnelColor("FresnelColor", Color) = (1,1,1,0)
[Toggle(_PARTICLE_DISSOLUTION_RANGE_ON)] _ParticleDissolutionRangeEnable("Enable Particle Dissolution Range", Float) = 0
_DissolutionTex("Dissolution Texture(R,A)", 2D) = "white" {}
_DissolutionRange("Dissolution Range", Range(0.0, 1.1)) = 0.5
[Toggle(_DISSOLUTION_EDGE_ON)] _DissolutionEdgeEnable("Enable Dissolution Edge", Float) = 0
_DissolutionEdgeWidth("Dissolution Edge Width", Range(0.0, 1.0)) = 0.1
_DissolutionEdgeColor("Dissolution Edge Color", Color) = (1,1,1,1)
_DissolutionEdgeIntensity("Dissolution Edge Intensity", Range(0.0, 10.0)) = 1
[Toggle(_INTERFERENCE_ON)] _InterferenceEnable("Enable Interference", Float) = 0
_InterferenceTex("Interference Texture(R,G)", 2D) = "gray" {}
_InterferenceIntensity("Interference Intensity", Range(0.0, 3.0)) = 1
_InterferenceAnimSpeedU("Interference Animation Speed U", Range(-100.0, 100.0)) = 0
_InterferenceAnimSpeedV("Interference Animation Speed V", Range(-100.0, 100.0)) = 0
_UVAnimSpeedU("UV Animation Speed U", Range(-100.0, 100.0)) = 0
_UVAnimSpeedV("UV Animation Speed V", Range(-100.0, 100.0)) = 0
[Toggle(_TEXTURE_SHEET_ANIM_ON)] _TextureSheetAnimEnable("Enable Texture Sheet Animation", Float) = 0
[Toggle(_TEXTURE_SHEET_ANIM_BLEND_ON)] _TextureSheetAnimBlendEnable("Enable Texture Sheet Animation Blend", Float) = 0
_AnimTilingX("Animation Tiling X", float) = 1
_AnimTilingY("Animation Tiling Y", float) = 1
_AnimFrameCount("Animation Frame Count", float) = 1
_AnimStartFrame("Animation Start Frame", float) = 0
_AnimFrameTime("Animation Frame Time", float) = 2
[Toggle(_PARTICLE_UV_ANIM_ON)] _ParticleUVAnimEnable("Enable Particle UV Animation(TEXCOORD1.xy)", Float) = 0
[Toggle(_PARTICLE_ANIM_RANDOM_ON)] _ParticleAnimRandomEnable("Enable Particle Animation Random(TEXCOORD1.w)", Float) = 0
}
Category
{
Tags{ "Queue" = "Transparent" "IgnoreProjector" = "True" "RenderType" = "Transparent" "PreviewType" = "Plane" }
Blend[_SrcBlend][_DstBlend]
ColorMask RGB
Cull [_FaceCull]
Lighting Off
ZWrite [_ZWrite]
ZTest[_ZTest]
Offset [_OffsetFactor], 0
SubShader
{
Pass
{
CGPROGRAM
#pragma vertex vert
#pragma fragment frag
#pragma multi_compile_fog
#pragma multi_compile_instancing
#pragma shader_feature _LIGHTTING_ON
#pragma shader_feature _MASK_TEXTURE_ON
#pragma shader_feature _FRESNEL_ON
#pragma shader_feature _PARTICLE_DISSOLUTION_RANGE_ON
#pragma shader_feature _DISSOLUTION_EDGE_ON
#pragma shader_feature _INTERFERENCE_ON
#pragma shader_feature _TEXTURE_SHEET_ANIM_ON
#pragma shader_feature _TEXTURE_SHEET_ANIM_BLEND_ON
#pragma shader_feature _PARTICLE_UV_ANIM_ON
#pragma shader_feature _PARTICLE_ANIM_RANDOM_ON
#define _PARTICLE_Clip 0
#include "UnityCG.cginc"
#include "AutoLight.cginc"
#include "UnityStandardParticleInstancing.cginc"
sampler2D _MainTex;
half4 _Color;
sampler2D _MaskTex;
half _MaskTexAnimSpeedU;
half _MaskTexAnimSpeedV;
half _AlphaCullingBias;
fixed _Luminance;
half _EnvirmentLuminance;
half _FresnelPow;
half _FresnelIntensity;
half4 _FresnelColor;
sampler2D _DissolutionTex;
half _DissolutionRange;
half _DissolutionEdgeWidth;
half4 _DissolutionEdgeColor;
half _DissolutionEdgeIntensity;
sampler2D _InterferenceTex;
half _InterferenceIntensity;
half _InterferenceAnimSpeedU;
half _InterferenceAnimSpeedV;
half _UVAnimSpeedU;
half _UVAnimSpeedV;
half _AnimTilingX;
half _AnimTilingY;
half _AnimFrameCount;
half _AnimStartFrame;
half _AnimFrameTime;
fixed _PaticleClip;
struct appdata_t
{
float4 vertex : POSITION;
fixed4 color : COLOR;
float2 texcoord : TEXCOORD0;
#if defined(_PARTICLE_ANIM_RANDOM_ON) || defined(_PARTICLE_UV_ANIM_ON) || defined(_DISSOLUTION_EDGE_ON)
float4 particleInfo : TEXCOORD1;
#endif
UNITY_VERTEX_INPUT_INSTANCE_ID
#if defined(_FRESNEL_ON) || defined(_LIGHTTING_ON)
half3 normal : NORMAL;
#endif
#ifdef _LIGHTTING_ON
LIGHTING_COORDS(2,3)
#endif
};
struct v2f
{
float4 vertex : SV_POSITION;
fixed4 color : COLOR;
float2 texcoord : TEXCOORD0;
#ifdef _INTERFERENCE_ON
float2 InterferenceTexcoord : TEXCOORD1;
#endif
UNITY_FOG_COORDS(2)
UNITY_VERTEX_INPUT_INSTANCE_ID
UNITY_VERTEX_OUTPUT_STEREO
#if defined(_FRESNEL_ON) || defined(_LIGHTTING_ON)
half3 normalWorld : NORMAL;
#endif
#ifdef _FRESNEL_ON
half3 viewDirWorld : TEXCOORD3;
#endif
#ifdef _TEXTURE_SHEET_ANIM_ON
half4 tiledAnimCoord : TEXCOORD4;
#endif
#ifdef _MASK_TEXTURE_ON
half2 maskTexcoord : TEXCOORD5;
#endif
#ifdef _DISSOLUTION_EDGE_ON
half3 dissolutionTexcoord : TEXCOORD6;
#endif
float4 worldPosition : TEXCOORD7;
};
float4 _MainTex_ST;
float4 _InterferenceTex_ST;
float4 _MaskTex_ST;
float4 _DissolutionTex_ST;
float4 _ClipRect;
#ifdef _LIGHTTING_ON
uniform float4 _LightColor0;
#endif
inline float SoftUnityGet2DClipping (in float2 position, in float4 clipRect)
{
float _ClipSoftX = 0.001;
float _ClipSoftY = 0.001;
float2 xy = (position.xy-clipRect.xy)/float2(_ClipSoftX,_ClipSoftY)*step(clipRect.xy, position.xy);
float2 zw = (clipRect.zw-position.xy)/float2(_ClipSoftX,_ClipSoftY)*step(position.xy,clipRect.zw);
float2 factor = clamp(0, zw, xy);
return saturate(min(factor.x,factor.y));
}
v2f vert(appdata_t v)
{
v2f o;
UNITY_SETUP_INSTANCE_ID(v);
UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO(o);
o.vertex = UnityObjectToClipPos(v.vertex);
o.worldPosition = 0;
if(_PaticleClip > _PARTICLE_Clip)
{
o.worldPosition = mul(unity_ObjectToWorld,v.vertex);
}
o.color = v.color * _Color;
o.texcoord = TRANSFORM_TEX(v.texcoord,_MainTex);
#ifdef _DISSOLUTION_EDGE_ON
o.dissolutionTexcoord = float3(TRANSFORM_TEX(v.texcoord, _DissolutionTex), v.particleInfo.z);
#endif
#ifdef _MASK_TEXTURE_ON
o.maskTexcoord = TRANSFORM_TEX(v.texcoord, _MaskTex);
#endif
#ifdef _INTERFERENCE_ON
o.InterferenceTexcoord = TRANSFORM_TEX(v.texcoord, _InterferenceTex);
#endif
#ifdef _TEXTURE_SHEET_ANIM_ON
half tileCount = _AnimTilingX * _AnimTilingY;
half startFrame = _AnimStartFrame;
#ifdef _PARTICLE_ANIM_RANDOM_ON
startFrame += floor(v.particleInfo.w * _AnimFrameCount);
#endif
half texIndex = fmod(floor(_Time.y / _AnimFrameTime + startFrame), _AnimFrameCount);
o.tiledAnimCoord.x = (o.texcoord.x + fmod(texIndex, _AnimTilingX)) / _AnimTilingX;
o.tiledAnimCoord.y = (o.texcoord.y + floor(_AnimTilingY - (texIndex + 0.01) / _AnimTilingX)) / _AnimTilingY;
#ifdef _TEXTURE_SHEET_ANIM_BLEND_ON
half texIndexBlend = fmod(texIndex + 1.0, _AnimFrameCount);
half2 texUVBlend;
o.tiledAnimCoord.z = (o.texcoord.x + fmod(texIndexBlend, _AnimTilingX)) / _AnimTilingX;
o.tiledAnimCoord.w = (o.texcoord.y + floor(_AnimTilingY - (texIndexBlend + 0.01) / _AnimTilingX)) / _AnimTilingY;
#endif
#endif
#ifdef _PARTICLE_UV_ANIM_ON
half2 particleUVAnimOffset = half2(v.particleInfo.xy);
#ifdef _TEXTURE_SHEET_ANIM_ON
o.tiledAnimCoord.xy -= particleUVAnimOffset;
#ifdef _TEXTURE_SHEET_ANIM_ON
#ifdef _TEXTURE_SHEET_ANIM_BLEND_ON
o.tiledAnimCoord.zw -= particleUVAnimOffset;
#endif
#endif
#else
o.texcoord.xy -= particleUVAnimOffset;
#endif
#endif
if(_UVAnimSpeedU != 0 || _UVAnimSpeedV != 0)
{
half2 uvAnimOffset = half2(_UVAnimSpeedU, _UVAnimSpeedV) * _Time.x;
#ifdef _TEXTURE_SHEET_ANIM_ON
o.tiledAnimCoord.xy -= uvAnimOffset;
#ifdef _TEXTURE_SHEET_ANIM_ON
#ifdef _TEXTURE_SHEET_ANIM_BLEND_ON
o.tiledAnimCoord.zw -= uvAnimOffset;
#endif
#endif
#else
o.texcoord.xy -= uvAnimOffset;
#endif
}
UNITY_TRANSFER_FOG(o,o.vertex);
#if defined(_FRESNEL_ON) || defined(_LIGHTTING_ON)
o.normalWorld = UnityObjectToWorldNormal(v.normal);
#endif
#ifdef _FRESNEL_ON
float4 posWorld = mul(unity_ObjectToWorld, v.vertex);
o.viewDirWorld = normalize(posWorld.xyz - _WorldSpaceCameraPos);
#endif
return o;
}
fixed4 frag(v2f i) : SV_Target
{
UNITY_SETUP_INSTANCE_ID(i);
#ifdef _DISSOLUTION_EDGE_ON
half2 dissolutionTex = tex2D(_DissolutionTex, i.dissolutionTexcoord.xy).ra;
half dissolution = dissolutionTex.x * dissolutionTex.y;// *i.dissolutionTexcoord.z;
#ifdef _PARTICLE_DISSOLUTION_RANGE_ON
half dissolutionRange = i.dissolutionTexcoord.z;
#else
half dissolutionRange = _DissolutionRange;
#endif
if (dissolution < dissolutionRange)
{
discard;
}
#endif
#ifdef _TEXTURE_SHEET_ANIM_ON
half2 texUV = i.tiledAnimCoord.xy;
#ifdef _TEXTURE_SHEET_ANIM_BLEND_ON
half2 texUVBlend = i.tiledAnimCoord.zw;
#endif
#else
half2 texUV = i.texcoord;
#endif
#ifdef _INTERFERENCE_ON
half2 interferenceUV = i.InterferenceTexcoord;
if(_InterferenceAnimSpeedU != 0 || _InterferenceAnimSpeedV != 0)
{
interferenceUV -= half2(_InterferenceAnimSpeedU, _InterferenceAnimSpeedV) * _Time.x;
}
half2 interference = (tex2D(_InterferenceTex, interferenceUV).rg - 0.5) * 2 * _InterferenceIntensity;
texUV += interference;
#ifdef _TEXTURE_SHEET_ANIM_ON
#ifdef _TEXTURE_SHEET_ANIM_BLEND_ON
texUVBlend += interference;
#endif
#endif
#endif
fixed4 col = tex2D(_MainTex, texUV);
#ifdef _TEXTURE_SHEET_ANIM_ON
#ifdef _TEXTURE_SHEET_ANIM_BLEND_ON
fixed4 colBlend = tex2D(_MainTex, texUVBlend);
half blendFactor = fmod(_Time.y, _AnimFrameTime) / _AnimFrameTime;
//return blendFactor;
col = col * (1.0 - blendFactor) + colBlend * blendFactor;
//return col;
#endif
#endif
col *= i.color;
col.rgb *= _Luminance;
#ifdef _LIGHTTING_ON
float3 normalDirection = normalize(i.normalWorld);
float3 lightDirection = normalize(_WorldSpaceLightPos0.xyz);
float3 lightColor = _LightColor0.rgb;
float attenuation = LIGHT_ATTENUATION(i);
float3 attenColor = attenuation * _LightColor0.xyz;
float NdotL = max(0.0,dot( normalDirection, lightDirection ));
float3 directDiffuse = max( 0.0, NdotL) * attenColor;
float3 diffuseColor = col.rgb;
diffuseColor *= directDiffuse + UNITY_LIGHTMODEL_AMBIENT.rgb;
col.rgb = diffuseColor;
#else
col.rgb *= _EnvirmentLuminance;
#endif
#ifdef _MASK_TEXTURE_ON
half2 maskUv = i.maskTexcoord;
if(_MaskTexAnimSpeedU != 0 || _MaskTexAnimSpeedV != 0)
{
maskUv -= half2(_MaskTexAnimSpeedU, _MaskTexAnimSpeedV) * _Time.x;
}
col *= tex2D(_MaskTex, maskUv);
#endif
if(_AlphaCullingBias > 0)
{
if (col.a < _AlphaCullingBias)
{
discard;
}
}
#ifdef _FRESNEL_ON
float fresnel = 1 - abs(dot(normalize(i.viewDirWorld), normalize(i.normalWorld)));
fresnel = pow(fresnel, _FresnelPow) * _FresnelIntensity;
col.rgb += fresnel * _FresnelColor.rgb;
col.a = col.a * (1 - _FresnelColor.a) + col.a * fresnel * _FresnelColor.a;
#endif
#ifdef _DISSOLUTION_EDGE_ON
half s1 = step(dissolution, dissolutionRange);
half s2 = step(dissolution, dissolutionRange + _DissolutionEdgeWidth);
half3 dissolutionEdge = (s2 - s1) * _DissolutionEdgeColor * _DissolutionEdgeIntensity;
col.rgb = col.rgb * (0.5 + dissolutionEdge) + dissolutionEdge * 0.5;
#endif
if(_PaticleClip > _PARTICLE_Clip)
{
col.a*= SoftUnityGet2DClipping(i.worldPosition.xy, _ClipRect);
}
UNITY_APPLY_FOG_COLOR(i.fogCoord, col, fixed4(0, 0, 0, 0)); // fog towards black due to our blend mode
return col;
}
ENDCG
}
}
}
}

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癫狂柳絮随风舞 · 2021-7-29 17:26:41

是我看不懂的代码了

Chn_泡面 · 2021-7-29 19:25:20

可以去找国内UPR官方群，好像要花钱他们还可以帮你优化

newmung · 2021-7-30 15:50:55

改了一天多，差不多了，基本上都能在网上找到
1、fixed 对应 real
2、雾，光照的那几个宏参考下面连接都能解决https://91maketop.github.io/ta/#/ShaderLab%E7%AE%80%E6%98%8E ... %86%85%E7%BD%AE%E5%8D%87%E7%BA%A7URP
3、网上说的Packages/com.unity.render-pipelines.universal/ShaderLibrary/ShaderVariablesFunctions.hlsl 这个要改成Packages/com.unity.shadergraph/ShaderGraphLibrary/ShaderVariablesFunctions.hlsl

俊哥 · 2021-8-13 13:13:35

谢谢大佬分享，真心学到了

zhuxisky · 2021-9-2 21:26:40

开关多变种多反而编译生成N个shader shader 的接口就是应该简洁容易调整而不是什么都囊括进来大而全的 shader 性能效率不高还容易头晕让使用者头疼不已.

大后天方舟 · 2022-11-3 17:45:40

元素是个好家园，加油啊

[Shader/渲染] 升级到URP后原来做粒子效果的Shader不能用了，请高人帮忙修改下...

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