模型UV?從上到下?不要錯亂?

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ase:

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?Code:

Shader "Unlit/VineGrow_Code" {Properties{_MainTex ("Diffuse", 2D) = "white" {}_Grow("Grow",Range(-1,0)) = 0_DampMin("DampMin",Float) = 0_DampMax("DampMax",Float) = 1_Expand("Expand",Float)= 1}SubShader{Tags { "RenderType"="Opaque" "RenderQueue"="AlphaTest"}Cull OffZWrite OnPass{CGPROGRAM#pragma vertex vert#pragma fragment frag#include "UnityCG.cginc"struct appdata{float4 vertex : POSITION;float2 texcoord : TEXCOORD0;float3 normal: NORMAL;};struct v2f{float4 pos : SV_POSITION;float2 uv : TEXCOORD0;float2 uv_normal:TEXCOORD1;};sampler2D _MainTex;float4 _MainTex_ST;float _Grow;float _DampMax;float _DampMin;float _Expand;v2f vert (appdata v){v2f o;float growValue_power = smoothstep(_DampMin,_DampMax,v.texcoord.y - _Grow);float3 vertex_offset = growValue_power * v.normal * _Expand;v.vertex = v.vertex +float4( vertex_offset,0);o.pos = UnityObjectToClipPos(v.vertex);o.uv = TRANSFORM_TEX(v.texcoord,_MainTex);return o;}fixed4 frag (v2f i) : SV_Target{clip(1-(i.uv.y - _Grow));fixed4 col = tex2D(_MainTex, i.uv); return col;}ENDCG}} }

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