FaryGui文字shader修改,弧线排列

因项目要求,希望将文字进行标题那样的弧线排列,如下图:

对FaryGUI的文字Shader进行了一些修改,基本达到要求,shader设置如下:

shader代码如下:

// Upgrade NOTE: replaced '_Object2World' with 'unity_ObjectToWorld'
// Upgrade NOTE: replaced 'mul(UNITY_MATRIX_MVP,*)' with 'UnityObjectToClipPos(*)'Shader "FairyGUI/Text-HM"
{Properties{_MainTex ("Alpha (A)", 2D) = "white" {}_StencilComp ("Stencil Comparison", Float) = 8_Stencil ("Stencil ID", Float) = 0_StencilOp ("Stencil Operation", Float) = 0_StencilWriteMask ("Stencil Write Mask", Float) = 255_StencilReadMask ("Stencil Read Mask", Float) = 255_ColorMask ("Color Mask", Float) = 15_BlendSrcFactor ("Blend SrcFactor", Float) = 5_BlendDstFactor ("Blend DstFactor", Float) = 10_Angel("角度",Float)=45_Radius("半径",Float)=1_TestWidth("宽度",Float)=192}SubShader{LOD 100Tags{"Queue" = "Transparent""IgnoreProjector" = "True""RenderType" = "Transparent"}Stencil{Ref [_Stencil]Comp [_StencilComp]Pass [_StencilOp] ReadMask [_StencilReadMask]WriteMask [_StencilWriteMask]}Cull OffLighting OffZWrite OffFog { Mode Off }Blend [_BlendSrcFactor] [_BlendDstFactor]ColorMask [_ColorMask]Pass{CGPROGRAM#pragma multi_compile NOT_GRAYED GRAYED#pragma multi_compile NOT_CLIPPED CLIPPED SOFT_CLIPPED#pragma vertex vert#pragma fragment frag#include "UnityCG.cginc"struct appdata_t{float4 vertex : POSITION;fixed4 color : COLOR;float4 texcoord : TEXCOORD0;};struct v2f{float4 vertex : SV_POSITION;fixed4 color : COLOR;float4 texcoord : TEXCOORD0;#ifdef CLIPPEDfloat2 clipPos : TEXCOORD1;#endif#ifdef SOFT_CLIPPEDfloat2 clipPos : TEXCOORD1;#endiffloat4 vertexTest:TEXCOORD2;};sampler2D _MainTex;CBUFFER_START(UnityPerMaterial)float  _Angel;float _Radius;float _TestWidth;#ifdef CLIPPEDfloat4 _ClipBox = float4(-2, -2, 0, 0);#endif#ifdef SOFT_CLIPPEDfloat4 _ClipBox = float4(-2, -2, 0, 0);float4 _ClipSoftness = float4(0, 0, 0, 0);#endifCBUFFER_ENDv2f vert (appdata_t v){v2f o;o.vertexTest.x=v.vertex.x;o.vertexTest.y=v.vertex.y;o.vertexTest.z=v.vertex.z;//根据x算y偏移float oJiao=_Angel*min(abs((v.vertex.x-_TestWidth/2)/(_TestWidth/2) ),1);float a_angel=(180-oJiao)/2;float cab=90-a_angel;float ab=2*_Radius*sin(oJiao/2*UNITY_PI / 180.0);float cb=sin(cab*UNITY_PI / 180.0)*ab;//根据y算x偏移float ruiAngel=(90-a_angel);float ad=(abs(v.vertex.y))/cos(ruiAngel*UNITY_PI / 180.0);float ed=sin(ruiAngel*UNITY_PI / 180.0)*ad;//倾斜偏移float edAngel=90-(180-ruiAngel)/2;float ef=cos(edAngel*UNITY_PI/180.0)*ed;float fq=ef*(sin(edAngel*UNITY_PI/180.0));float eq=ef*(cos(edAngel*UNITY_PI/180.0));if(v.vertex.x>_TestWidth/2){v.vertex.x-=ed+eq;}else{v.vertex.x+=ed+eq;}v.vertex.y-=(cb);v.vertex.y+=fq*min(abs((v.vertex.x-_TestWidth/2)/(_TestWidth/2) ),1);//// o.vertexTest.x=oJiao;o.vertex = UnityObjectToClipPos(v.vertex);o.texcoord = v.texcoord;#if !defined(UNITY_COLORSPACE_GAMMA) && (UNITY_VERSION >= 550)o.color.rgb = GammaToLinearSpace(v.color.rgb);o.color.a = v.color.a;#elseo.color = v.color;#endif// #ifdef CLIPPED// o.clipPos = mul(unity_ObjectToWorld, v.vertex).xy * _ClipBox.zw + _ClipBox.xy;// #endif//// #ifdef SOFT_CLIPPED// o.clipPos = mul(unity_ObjectToWorld, v.vertex).xy * _ClipBox.zw + _ClipBox.xy;// #endifreturn o;}fixed4 frag (v2f i) : SV_Target{// float a=-i.vertexTest.y/39.0;// return fixed4(a,a,a,1);fixed4 col = i.color;col.a *= tex2D(_MainTex, i.texcoord).a;#ifdef GRAYEDfixed grey = dot(col.rgb, fixed3(0.299, 0.587, 0.114));  col.rgb = fixed3(grey, grey, grey);#endif#ifdef SOFT_CLIPPEDfloat2 factor = float2(0,0);if(i.clipPos.x<0)factor.x = (1.0-abs(i.clipPos.x)) * _ClipSoftness.x;elsefactor.x = (1.0-i.clipPos.x) * _ClipSoftness.z;if(i.clipPos.y<0)factor.y = (1.0-abs(i.clipPos.y)) * _ClipSoftness.w;elsefactor.y = (1.0-i.clipPos.y) * _ClipSoftness.y;col.a *= clamp(min(factor.x, factor.y), 0.0, 1.0);#endif#ifdef CLIPPEDfloat2 factor = abs(i.clipPos);col.a *= step(max(factor.x, factor.y), 1);#endifreturn col;}ENDCG}}
}