这是用两个shader来实现，球的shader跟两个胶囊体

Posted 2022-06-13 hyhy904

代码如下：
胶囊体（先渲染Geometry+1）：

Shader "SoulCoder/Mask"
SubShader
Tags "RenderType"="Opaque" "Queue"="Geometry+1"
ColorMask 0
ZWrite off
Stencil
Ref 1
Comp always
Pass replace

CGINCLUDE
struct appdata
float4 vertex : POSITION;
;
struct v2f
float4 pos : SV_POSITION;
;
v2f vert(appdata v)
v2f o;
o.pos = UnityObjectToClipPos(v.vertex);
return o;

half4 frag(v2f i) : SV_Target
return half4(1,1,0,1);

ENDCG

Pass
Cull Front
ZTest Less

CGPROGRAM
#pragma vertex vert
#pragma fragment frag
ENDCG

Pass
Cull Back
ZTest Greater

CGPROGRAM
#pragma vertex vert
#pragma fragment frag
ENDCG

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