Question

如何制作一个透明渐变的shader

想制作一个地球球体，将地球的半透明贴图贴到球体上，在球表面从中间到四周透明渐变。

Answer 1

Shader "Law/TShader"{ Properties { _MainTex ("Texture", 2D) = "white" {} } SubShader { Tags { "Queue"="Transparent" } LOD 100 Pass { Blend SrcAlpha OneMinusSrcAlpha zwrite off CGPROGRAM #pragma vertex vert #pragma fragment frag #include "UnityCG.cginc" struct v2f { float2 uv : TEXCOORD0; float3 normal:NORMAL; float4 vertex : SV_POSITION; }; sampler2D _MainTex; float4 _MainTex_ST; uniform float4 _ViewDir; v2f vert (appdata_full v) { v2f o; o.vertex =mul(UNITY_MATRIX_MVP,v.vertex); o.uv = TRANSFORM_TEX(v.texcoord, _MainTex); o.normal = v.normal;