360VideoPlayer团结一致

时间:2017-12-19 11:39:48

标签: unity3d shader 360-degrees 360-virtual-reality

我正试图统一制作一个360VideoPlayer。

我创建一个球体,添加一个视频播放器,然后将Cull Front添加到其着色器(标准着色器)。

当我播放视频时,它会像这样在该球体的顶部和底部扭曲:

video warped

那么我应该怎么做才能解决这个问题。

1 个答案:

答案 0 :(得分:-2)

360 viewer in unity, texture appears warped in the top and bottom

这是答案。

并使用此着色器:

Shader "Custom/Equirectangular" {
    Properties {
        _Color ("Main Color", Color) = (1,1,1,1)
        _MainTex ("Diffuse (RGB) Alpha (A)", 2D) = "gray" {}
    }

    SubShader{
        Pass {
            Tags {"LightMode" = "Always"}

            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(1 - (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"
}