DepthOfFieldFocus.h

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#pragma once
 
#include "common/Result.h"
 
namespace ssq {
class Table;
}
 
namespace eve::graphics {
 
enum class DepthOfFieldTracking { FollowScreen = 0, FollowTarget = 1, FixedOffset = 2 };
 
struct DepthOfFieldFocusSettings {
    int   tracking           = int(DepthOfFieldTracking::FollowScreen);
    bool  enabled            = true;
    bool  interactWithPlayer = true;
    float focusOffset        = 0.f;
    float maximumDistance    = 100.f;
    float aperture           = 7.5f;
    float focalLength        = 30.f;
    float response           = 3.5f;
};
 
struct DepthOfFieldFocusInput {
    bool  hasRayHit      = false;
    bool  hitPlayer      = false;
    float rayHitDistance = 0.f;
    bool  hasTarget      = false;
    float targetDistance = 0.f;
    float deltaSeconds   = 0.f;
};
 
struct DepthOfFieldFocusState {
    bool  initialized     = false;
    bool  maximumExceeded = true;
    float focusDistance   = 1.f;
};
 
struct DepthOfFieldFocusOutput {
    bool  active        = false;
    float focusDistance = 1.f;
    float aperture      = 7.5f;
    float focalLength   = 30.f;
};
 
[[nodiscard]] EVENGINE_API_BACKENDS Result<void> evaluateDepthOfFieldFocus(DepthOfFieldFocusState*          state,
                                                                           DepthOfFieldFocusOutput*         output,
                                                                           const DepthOfFieldFocusSettings* settings,
                                                                           const DepthOfFieldFocusInput*    input);
 
void exposeDepthOfFieldFocusBindings(ssq::Table& table);
 
}  // namespace eve::graphics