#define_import_path bevy_render::view

struct ColorGrading {
    balance: mat3x3<f32>,
    saturation: vec3<f32>,
    contrast: vec3<f32>,
    gamma: vec3<f32>,
    gain: vec3<f32>,
    lift: vec3<f32>,
    midtone_range: vec2<f32>,
    exposure: f32,
    hue: f32,
    post_saturation: f32,
}

struct View {
    clip_from_world: mat4x4<f32>,
    unjittered_clip_from_world: mat4x4<f32>,
    world_from_clip: mat4x4<f32>,
    world_from_view: mat4x4<f32>,
    view_from_world: mat4x4<f32>,
    // Typically a column-major right-handed projection matrix, one of either:
    //
    // Perspective (infinite reverse z)
    // ```
    // f = 1 / tan(fov_y_radians / 2)
    //
    // ⎡ f / aspect  0   0     0 ⎤
    // ⎢          0  f   0     0 ⎥
    // ⎢          0  0   0  near ⎥
    // ⎣          0  0  -1     0 ⎦
    // ```
    //
    // Orthographic
    // ```
    // w = right - left
    // h = top - bottom
    // d = far - near
    // cw = -right - left
    // ch = -top - bottom
    //
    // ⎡ 2 / w      0      0   cw / w ⎤
    // ⎢     0  2 / h      0   ch / h ⎥
    // ⎢     0      0  1 / d  far / d ⎥
    // ⎣     0      0      0        1 ⎦
    // ```
    //
    // `clip_from_view[3][3] == 1.0` is the standard way to check if a projection is orthographic
    //
    // Wgsl matrices are column major, so for example getting the near plane of a perspective projection is `clip_from_view[3][2]`
    // 
    // Custom projections are also possible however.
    clip_from_view: mat4x4<f32>,
    view_from_clip: mat4x4<f32>,
    world_position: vec3<f32>,
    exposure: f32,
    // viewport(x_origin, y_origin, width, height)
    viewport: vec4<f32>,
    // 6 world-space half spaces (normal: vec3, distance: f32) ordered left, right, top, bottom, near, far.
    // The normal vectors point towards the interior of the frustum.
    // A half space contains `p` if `normal.dot(p) + distance > 0.`
    frustum: array<vec4<f32>, 6>,
    color_grading: ColorGrading,
    mip_bias: f32,
    frame_count: u32,
};