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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144 行
3.4 KiB

Shader "TextMeshPro/Mobile/Bitmap" {
Properties {
_MainTex ("Font Atlas", 2D) = "white" {}
_Color ("Text Color", Color) = (1,1,1,1)
_DiffusePower ("Diffuse Power", Range(1.0,4.0)) = 1.0
_VertexOffsetX("Vertex OffsetX", float) = 0
_VertexOffsetY("Vertex OffsetY", float) = 0
_MaskSoftnessX("Mask SoftnessX", float) = 0
_MaskSoftnessY("Mask SoftnessY", float) = 0
_ClipRect("Clip Rect", vector) = (-32767, -32767, 32767, 32767)
_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
}
SubShader {
Tags { "Queue"="Transparent" "IgnoreProjector"="True" "RenderType"="Transparent" }
Stencil
{
Ref[_Stencil]
Comp[_StencilComp]
Pass[_StencilOp]
ReadMask[_StencilReadMask]
WriteMask[_StencilWriteMask]
}
Lighting Off
Cull Off
ZTest [unity_GUIZTestMode]
ZWrite Off
Fog { Mode Off }
Blend SrcAlpha OneMinusSrcAlpha
ColorMask[_ColorMask]
Pass {
CGPROGRAM
#pragma vertex vert
#pragma fragment frag
#pragma fragmentoption ARB_precision_hint_fastest
#pragma multi_compile __ UNITY_UI_CLIP_RECT
#pragma multi_compile __ UNITY_UI_ALPHACLIP
#include "UnityCG.cginc"
struct appdata_t {
float4 vertex : POSITION;
fixed4 color : COLOR;
float2 texcoord0 : TEXCOORD0;
float2 texcoord1 : TEXCOORD1;
};
struct v2f {
float4 vertex : POSITION;
fixed4 color : COLOR;
float2 texcoord0 : TEXCOORD0;
float4 mask : TEXCOORD2;
};
sampler2D _MainTex;
fixed4 _Color;
float _DiffusePower;
uniform float _VertexOffsetX;
uniform float _VertexOffsetY;
uniform float4 _ClipRect;
uniform float _MaskSoftnessX;
uniform float _MaskSoftnessY;
v2f vert (appdata_t v)
{
v2f OUT;
float4 vert = v.vertex;
vert.x += _VertexOffsetX;
vert.y += _VertexOffsetY;
vert.xy += (vert.w * 0.5) / _ScreenParams.xy;
OUT.vertex = UnityPixelSnap(UnityObjectToClipPos(vert));
OUT.color = v.color;
OUT.color *= _Color;
OUT.color.rgb *= _DiffusePower;
OUT.texcoord0 = v.texcoord0;
float2 pixelSize = OUT.vertex.w;
//pixelSize /= abs(float2(_ScreenParams.x * UNITY_MATRIX_P[0][0], _ScreenParams.y * UNITY_MATRIX_P[1][1]));
// Clamp _ClipRect to 16bit.
float4 clampedRect = clamp(_ClipRect, -2e10, 2e10);
OUT.mask = float4(vert.xy * 2 - clampedRect.xy - clampedRect.zw, 0.25 / (0.25 * half2(_MaskSoftnessX, _MaskSoftnessY) + pixelSize.xy));
return OUT;
}
fixed4 frag (v2f IN) : COLOR
{
fixed4 color = fixed4(IN.color.rgb, IN.color.a * tex2D(_MainTex, IN.texcoord0).a);
// Alternative implementation to UnityGet2DClipping with support for softness.
#if UNITY_UI_CLIP_RECT
half2 m = saturate((_ClipRect.zw - _ClipRect.xy - abs(IN.mask.xy)) * IN.mask.zw);
color *= m.x * m.y;
#endif
#if UNITY_UI_ALPHACLIP
clip(color.a - 0.001);
#endif
return color;
}
ENDCG
}
}
SubShader {
Tags { "Queue"="Transparent" "IgnoreProjector"="True" "RenderType"="Transparent" }
Lighting Off Cull Off ZTest Always ZWrite Off Fog { Mode Off }
Blend SrcAlpha OneMinusSrcAlpha
BindChannels {
Bind "Color", color
Bind "Vertex", vertex
Bind "TexCoord", texcoord0
}
Pass {
SetTexture [_MainTex] {
constantColor [_Color] combine constant * primary, constant * texture
}
}
}
CustomEditor "TMPro.EditorUtilities.TMP_BitmapShaderGUI"
}