我创建了一个光球并在球内添加了一个等距矩形着色器,然后我添加了图像。问题是(“图像上显示了虚线如何解决?)你可以看到虚线
我使用的着色器的源代码是
Shader "Unlit/rect"{
Properties {
_MainTex (" Base (RGB)", 2D) = "gray" {}
}
SubShader{
Pass {
Tags {"RenderType"="Opaque" }
cull front
CGPROGRAM
#pragma vertex vert
#pragma fragment frag
#pragma fragmentoption ARB_precision_hint_fastest
#pragma glsl
#pragma target 3.0
#include "UnityCG.cginc"
struct appdata {
float4 vertex : POSITION;
float3 normal : NORMAL;
};
struct v2f
{
float4 pos : SV_POSITION;
float3 normal : TEXCOORD0;
};
v2f vert (appdata v)
{
v2f o;
o.pos = mul(UNITY_MATRIX_MVP, v.vertex);
o.normal = v.normal;
return o;
}
sampler2D _MainTex;
#define PI 3.141592653589793
inline float2 RadialCoords(float3 a_coords)
{
float3 a_coords_n = normalize(a_coords);
float lon = atan2(a_coords_n.z, a_coords_n.x);
float lat = acos(a_coords_n.y);
float2 sphereCoords = float2(lon, lat) * (1.0 / PI);
return float2(sphereCoords.x * 0.5 + 0.5, 1 - sphereCoords.y);
}
float4 frag(v2f IN) : COLOR
{
float2 equiUV = RadialCoords(IN.normal);
return tex2D(_MainTex, equiUV);
}
ENDCG
}
}
FallBack "VertexLit"
}