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Implement Physical Light Units as an optional setting.

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This allows light sources to be specified in physical light units in addition to the regular energy multiplier. In order to avoid loss of precision at high values, brightness values are premultiplied by an exposure normalization value.

In support of Physical Light Units this PR also renames CameraEffects to CameraAttributes.
This commit is contained in:
clayjohn
2022-07-31 16:20:24 -07:00
parent 736632ee7e
commit 385ee5c70b
131 changed files with 2692 additions and 1283 deletions
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25
scene/resources/environment.h
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@ -92,9 +92,11 @@ private:
float bg_sky_custom_fov = 0.0;
Vector3 bg_sky_rotation;
Color bg_color;
float bg_energy = 1.0;
int bg_canvas_max_layer = 0;
int bg_camera_feed_id = 1;
float bg_energy_multiplier = 1.0;
float bg_intensity = 30000.0; // Measured in nits or candela/m^2
void _update_bg_energy();
// Ambient light
Color ambient_color;
@ -108,11 +110,6 @@ private:
ToneMapper tone_mapper = TONE_MAPPER_LINEAR;
float tonemap_exposure = 1.0;
float tonemap_white = 1.0;
bool tonemap_auto_exposure_enabled = false;
float tonemap_auto_exposure_min = 0.05;
float tonemap_auto_exposure_max = 8.0;
float tonemap_auto_exposure_speed = 0.5;
float tonemap_auto_exposure_grey = 0.4;
void _update_tonemap();
// SSR
@ -231,8 +228,10 @@ public:
Vector3 get_sky_rotation() const;
void set_bg_color(const Color &p_color);
Color get_bg_color() const;
void set_bg_energy(float p_energy);
float get_bg_energy() const;
void set_bg_energy_multiplier(float p_energy);
float get_bg_energy_multiplier() const;
void set_bg_intensity(float p_energy);
float get_bg_intensity() const;
void set_canvas_max_layer(int p_max_layer);
int get_canvas_max_layer() const;
void set_camera_feed_id(int p_id);
@ -257,16 +256,6 @@ public:
float get_tonemap_exposure() const;
void set_tonemap_white(float p_white);
float get_tonemap_white() const;
void set_tonemap_auto_exposure_enabled(bool p_enabled);
bool is_tonemap_auto_exposure_enabled() const;
void set_tonemap_auto_exposure_min(float p_auto_exposure_min);
float get_tonemap_auto_exposure_min() const;
void set_tonemap_auto_exposure_max(float p_auto_exposure_max);
float get_tonemap_auto_exposure_max() const;
void set_tonemap_auto_exposure_speed(float p_auto_exposure_speed);
float get_tonemap_auto_exposure_speed() const;
void set_tonemap_auto_exposure_grey(float p_auto_exposure_grey);
float get_tonemap_auto_exposure_grey() const;
// SSR
void set_ssr_enabled(bool p_enabled);