viewport.h

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#pragma once
 
#include "base/rect.h"
#include "base/vec2.h"
#include "base/ray.h"
 
namespace eu::core
{
    struct Viewport
    {
        Viewport(const Recti& r);
 
        [[nodiscard]] float
        get_aspect_ratio() const;
 
        [[nodiscard]] vec2f
        to_clip_coord(const vec2i& p) const;
 
        Recti bounds;
    };
 
    struct CompiledCamera3;
 
    Ray3f from_mouse_to_ray
    (
        const CompiledCamera3& camera,
        const Viewport& viewport,
        const vec2i& position
    );
 
    UnitRay3f from_mouse_to_unit_ray
    (
        const CompiledCamera3& camera,
        const Viewport& viewport,
        const vec2i& position
    );
}