本项目演示如何创建自己的顶点动画着色器。场景不使用任何纹理或动画资源,所有内容都使用Shader Graph进行着色和动画处理。
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// Simplified version of the SDF Surface shader :
// - No support for Bevel, Bump or envmap
// - Diffuse only lighting
// - Fully supports only 1 directional light. Other lights can affect it, but it will be per-vertex/SH.
Shader "TextMeshPro/Mobile/Distance Field (Surface)" {
Properties {
_FaceTex ("Fill Texture", 2D) = "white" {}
_FaceColor ("Fill Color", Color) = (1,1,1,1)
_FaceDilate ("Face Dilate", Range(-1,1)) = 0
_OutlineColor ("Outline Color", Color) = (0,0,0,1)
_OutlineTex ("Outline Texture", 2D) = "white" {}
_OutlineWidth ("Outline Thickness", Range(0, 1)) = 0
_OutlineSoftness ("Outline Softness", Range(0,1)) = 0
_GlowColor ("Color", Color) = (0, 1, 0, 0.5)
_GlowOffset ("Offset", Range(-1,1)) = 0
_GlowInner ("Inner", Range(0,1)) = 0.05
_GlowOuter ("Outer", Range(0,1)) = 0.05
_GlowPower ("Falloff", Range(1, 0)) = 0.75
_WeightNormal ("Weight Normal", float) = 0
_WeightBold ("Weight Bold", float) = 0.5
// Should not be directly exposed to the user
_ShaderFlags ("Flags", float) = 0
_ScaleRatioA ("Scale RatioA", float) = 1
_ScaleRatioB ("Scale RatioB", float) = 1
_ScaleRatioC ("Scale RatioC", float) = 1
_MainTex ("Font Atlas", 2D) = "white" {}
_TextureWidth ("Texture Width", float) = 512
_TextureHeight ("Texture Height", float) = 512
_GradientScale ("Gradient Scale", float) = 5.0
_ScaleX ("Scale X", float) = 1.0
_ScaleY ("Scale Y", float) = 1.0
_PerspectiveFilter ("Perspective Correction", Range(0, 1)) = 0.875
_VertexOffsetX ("Vertex OffsetX", float) = 0
_VertexOffsetY ("Vertex OffsetY", float) = 0
//_MaskCoord ("Mask Coords", vector) = (0,0,0,0)
//_MaskSoftness ("Mask Softness", float) = 0
}
SubShader {
Tags {
"Queue"="Transparent"
"IgnoreProjector"="True"
"RenderType"="Transparent"
}
LOD 300
Cull [_CullMode]
CGPROGRAM
#pragma surface PixShader Lambert alpha:blend vertex:VertShader noforwardadd nolightmap nodirlightmap
#pragma target 3.0
#pragma shader_feature __ GLOW_ON
#include "TMPro_Properties.cginc"
#include "TMPro.cginc"
half _FaceShininess;
half _OutlineShininess;
struct Input
{
fixed4 color : COLOR;
float2 uv_MainTex;
float2 uv2_FaceTex;
float2 uv2_OutlineTex;
float2 param; // Weight, Scale
float3 viewDirEnv;
};
#include "TMPro_Surface.cginc"
ENDCG
// Pass to render object as a shadow caster
Pass
{
Name "Caster"
Tags { "LightMode" = "ShadowCaster" }
Offset 1, 1
Fog {Mode Off}
ZWrite On ZTest LEqual Cull Off
CGPROGRAM
#pragma vertex vert
#pragma fragment frag
#pragma multi_compile_shadowcaster
#include "UnityCG.cginc"
struct v2f {
V2F_SHADOW_CASTER;
float2 uv : TEXCOORD1;
float2 uv2 : TEXCOORD3;
float alphaClip : TEXCOORD2;
};
uniform float4 _MainTex_ST;
uniform float4 _OutlineTex_ST;
float _OutlineWidth;
float _FaceDilate;
float _ScaleRatioA;
v2f vert( appdata_base v )
{
v2f o;
TRANSFER_SHADOW_CASTER(o)
o.uv = TRANSFORM_TEX(v.texcoord, _MainTex);
o.uv2 = TRANSFORM_TEX(v.texcoord, _OutlineTex);
o.alphaClip = o.alphaClip = (1.0 - _OutlineWidth * _ScaleRatioA - _FaceDilate * _ScaleRatioA) / 2;
return o;
}
uniform sampler2D _MainTex;
float4 frag(v2f i) : COLOR
{
fixed4 texcol = tex2D(_MainTex, i.uv).a;
clip(texcol.a - i.alphaClip);
SHADOW_CASTER_FRAGMENT(i)
}
ENDCG
}
}
CustomEditor "TMPro.EditorUtilities.TMP_SDFShaderGUI"
}