Shader "Builtin Skybox"
{
    Properties
    {
        _Tint ("Tint", Color) = (1,1,1,1) [Semantic(Tint)]
        _Exposure ("Exposure", Float) = 1.0 [Semantic(Exposure)]
        _Rotation ("Rotation", Float) = 0.0 [Semantic(Rotation)]
        _MainTex ("Panoramic", 2D) = "white" [Semantic(SkyboxPanoramicTexture)]
        _Tex ("Cubemap (HDR)", Cube) = "white" [Semantic(SkyboxTexture)]
    }
    SubShader
    {
        Pass
        {
            Name "Skybox"
            Tags { "LightMode" = "Skybox" }
            Resources
            {
                EnvironmentConstants (ConstantBuffer, 0, 0) [Semantic(Environment)]
                MaterialConstants (ConstantBuffer, 1, 0) [Semantic(Material)]
                SkyboxPanoramicTexture (Texture2D, 2, 0) [Semantic(SkyboxPanoramicTexture)]
                SkyboxTexture (TextureCube, 3, 0) [Semantic(SkyboxTexture)]
                LinearClampSampler (Sampler, 4, 0) [Semantic(LinearClampSampler)]
            }
            HLSLPROGRAM
            #pragma vertex MainVS
            #pragma fragment MainPS
            #pragma backend D3D12 HLSL "skybox.vs.hlsl" "skybox.ps.hlsl" vs_5_0 ps_5_0
            #pragma backend OpenGL GLSL "skybox.vert.glsl" "skybox.frag.glsl"
            #pragma backend Vulkan GLSL "skybox.vert.vk.glsl" "skybox.frag.vk.glsl"
            ENDHLSL
        }
    }
}