visibility.h

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#pragma once
//------------------------------------------------------------------------------
//------------------------------------------------------------------------------
 
namespace Visibility
{
 
enum ObserverMask : uint8_t
{
    Graphics    = (1 << 0), // observer sees graphics entities (models, lights, characters, etc)
    Observers   = (1 << 1), // observer can see other observers (shadow casting lights, for example)
 
    All = (1 << 2),
    NumObserverMasks = 2
};
__ImplementEnumBitOperators(ObserverMask);
 
enum ObserverType : uint8_t
{
    Perspective         = 0, // observer uses a 4x4 projection and view matrix to resolve visibility
    Orthographic        = 1, // observer uses a 4x4 orthogonal and view matrix to resolve visibility
    BoundingBox         = 2, // observer uses a non-projective bounding box
    Omnipercipient      = 3, // observer sees everything, without having to do any resolving
 
    NumObserverTypes    = 4
};
__ImplementEnumBitOperators(ObserverType);
 
enum VisibilityEntityType : uint8_t
{
    Model,                          // entity is a model
    Particle,                       // entity is a particle
    Camera,                         // ordinary camera
    Light,                          // entity is a light source
    LightProbe                      // entity is a light probe
    
};
 
} // namespace Visibility