Unity显示360度全景,其实就是把全景图片贴到一个球上,只不过,这个球是从里往外看。
先把摄像机移动到坐标(0,0,0)。
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添加一个球体,坐标也是(0,0,0)
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把全景图片拖到球体上,
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这个时候,因为贴图在外面,所以还看不到
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新建一个着色器
Shader "InsideVisible" {
Properties {
_MainTex ("Base (RGB)", 2D) = "white" {}
}
SubShader {
Tags { "RenderType"="Opaque" }
Cull front // ADDED BY BERNIE, TO FLIP THE SURFACES
LOD 100
Pass {
CGPROGRAM
#pragma vertex vert
#pragma fragment frag
#include "UnityCG.cginc"
struct appdata_t {
float4 vertex : POSITION;
float2 texcoord : TEXCOORD0;
};
struct v2f {
float4 vertex : SV_POSITION;
half2 texcoord : TEXCOORD0;
};
sampler2D _MainTex;
float4 _MainTex_ST;
v2f vert (appdata_t v)
{
v2f o;
o.vertex = mul(UNITY_MATRIX_MVP, v.vertex);
// ADDED BY BERNIE:
v.texcoord.x = 1 - v.texcoord.x;
o.texcoord = TRANSFORM_TEX(v.texcoord, _MainTex);
return o;
}
fixed4 frag (v2f i) : SV_Target
{
fixed4 col = tex2D(_MainTex, i.texcoord);
return col;
}
ENDCG
}
}
}
将球体的着色器改成新加的。
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这个时候,就能显示了
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