分享乙個雙面透明逐漸顯示的shader

分享乙個雙面透明逐漸顯示的shader，

大致效果如下圖：

隨著攝像頭不斷靠近顏色越來約明顯，優化攝像機對物體裁剪顯示比較突兀

shader**如下：

shader "custom/dtscircle"

_alphascale("alpha scale",range(0,1)) =1

_fadedistancenear("near fadeout dist(view space)",float) = 0.3

_fadedistancefar("far fadeout dist(view space)",float) = 1000

}subshader

pass

cull front

zwrite off

blend srcalpha oneminussrcalpha

cgprogram

#pragma vertex vert

#pragma fragment frag

#include "lighting.cginc"

#include "unitycg.cginc"

fixed4 _color;

sampler2d _maintex;

float4 _maintex_st;

fixed _alphascale;

struct a2v

;float _fadedistancenear;

float _fadedistancefar;

struct v2f;

v2f vert(a2v v)

fixed4 frag(v2f i):sv_target

endcg

}pass

cull back

zwrite off

blend srcalpha oneminussrcalpha

cgprogram

#pragma vertex vert

#pragma fragment frag

#include "lighting.cginc"

#include "unitycg.cginc"

fixed4 _color;

sampler2d _maintex;

float4 _maintex_st;

fixed _alphascale;

struct a2v

;float _fadedistancenear;

float _fadedistancefar;

struct v2f;

v2f vert(a2v v)

fixed4 frag(v2f i):sv_target

endcg}}

fallback "transparent/vertexlit"

}

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