117 lines
3.5 KiB
C++
117 lines
3.5 KiB
C++
// Copyright (c) 2012-2022 Wojciech Figat. All rights reserved.
|
|
|
|
#pragma once
|
|
|
|
#include "Light.h"
|
|
#include "Engine/Content/Assets/IESProfile.h"
|
|
#include "Engine/Content/AssetReference.h"
|
|
|
|
/// <summary>
|
|
/// Point light emits light from point in all directions.
|
|
/// </summary>
|
|
API_CLASS() class FLAXENGINE_API PointLight : public LightWithShadow
|
|
{
|
|
DECLARE_SCENE_OBJECT(PointLight);
|
|
private:
|
|
|
|
Vector3 _direction;
|
|
float _radius;
|
|
int32 _sceneRenderingKey = -1;
|
|
|
|
public:
|
|
|
|
/// <summary>
|
|
/// Light source bulb radius
|
|
/// </summary>
|
|
API_FIELD(Attributes="EditorOrder(2), DefaultValue(0.0f), EditorDisplay(\"Light\"), Limit(0, 1000, 0.01f)")
|
|
float SourceRadius = 0.0f;
|
|
|
|
/// <summary>
|
|
/// Light source bulb length
|
|
/// </summary>
|
|
API_FIELD(Attributes="EditorOrder(3), DefaultValue(0.0f), EditorDisplay(\"Light\"), Limit(0, 1000, 0.01f)")
|
|
float SourceLength = 0.0f;
|
|
|
|
/// <summary>
|
|
/// Controls the radial falloff of light when UseInverseSquaredFalloff is disabled.
|
|
/// </summary>
|
|
API_FIELD(Attributes="EditorOrder(13), DefaultValue(8.0f), EditorDisplay(\"Light\"), Limit(2, 16, 0.01f)")
|
|
float FallOffExponent = 8.0f;
|
|
|
|
/// <summary>
|
|
/// Whether to use physically based inverse squared distance falloff, where Radius is only clamping the light's contribution.
|
|
/// </summary>
|
|
API_FIELD(Attributes="EditorOrder(14), DefaultValue(false), EditorDisplay(\"Light\")")
|
|
bool UseInverseSquaredFalloff = false;
|
|
|
|
/// <summary>
|
|
/// IES texture (light profiles from real world measured data)
|
|
/// </summary>
|
|
API_FIELD(Attributes="EditorOrder(211), DefaultValue(null), EditorDisplay(\"IES Profile\", \"IES Texture\")")
|
|
AssetReference<IESProfile> IESTexture;
|
|
|
|
/// <summary>
|
|
/// Enable/disable using light brightness from IES profile
|
|
/// </summary>
|
|
API_FIELD(Attributes="EditorOrder(212), DefaultValue(false), EditorDisplay(\"IES Profile\", \"Use IES Brightness\")")
|
|
bool UseIESBrightness = false;
|
|
|
|
/// <summary>
|
|
/// Global scale for IES brightness contribution
|
|
/// </summary>
|
|
API_FIELD(Attributes="EditorOrder(213), DefaultValue(1.0f), Limit(0, 10000, 0.01f), EditorDisplay(\"IES Profile\", \"Brightness Scale\")")
|
|
float IESBrightnessScale = 1.0f;
|
|
|
|
public:
|
|
|
|
/// <summary>
|
|
/// Computes light brightness value
|
|
/// </summary>
|
|
/// <returns>Brightness</returns>
|
|
float ComputeBrightness() const;
|
|
|
|
/// <summary>
|
|
/// Gets scaled light radius
|
|
/// </summary>
|
|
float GetScaledRadius() const;
|
|
|
|
/// <summary>
|
|
/// Gets light radius
|
|
/// </summary>
|
|
API_PROPERTY(Attributes="EditorOrder(1), DefaultValue(1000.0f), EditorDisplay(\"Light\"), Limit(0, 100000, 0.1f)")
|
|
FORCE_INLINE float GetRadius() const
|
|
{
|
|
return _radius;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Sets light radius
|
|
/// </summary>
|
|
/// <param name="value">The new value</param>
|
|
API_PROPERTY() void SetRadius(float value);
|
|
|
|
private:
|
|
|
|
void UpdateBounds();
|
|
|
|
public:
|
|
|
|
// [LightWithShadow]
|
|
void Draw(RenderContext& renderContext) override;
|
|
#if USE_EDITOR
|
|
void OnDebugDraw() override;
|
|
void OnDebugDrawSelected() override;
|
|
#endif
|
|
void OnLayerChanged() override;
|
|
void Serialize(SerializeStream& stream, const void* otherObj) override;
|
|
void Deserialize(DeserializeStream& stream, ISerializeModifier* modifier) override;
|
|
bool IntersectsItself(const Ray& ray, float& distance, Vector3& normal) override;
|
|
|
|
protected:
|
|
|
|
// [LightWithShadow]
|
|
void OnEnable() override;
|
|
void OnDisable() override;
|
|
void OnTransformChanged() override;
|
|
};
|