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Code Issues 147 Wiki Activity

Cast shadows of vehicle headlights from the scene in their beam in the GL 4.6 renderer

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Hirek
2026-10-16 14:13:36 +02:00
parent 466cb5339e
commit d509775269
10 changed files with 612 additions and 50 deletions
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13
rendering/opengl46/opengl46renderer.h
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@@ -308,6 +308,14 @@ class opengl46_renderer : public gfx_renderer {
void Render_lamp_shadows();
// one part of the map of a scenery lamp: the scenery, or the vehicles by it (and Cab, the occupied cab) over a copy of it
void Render_lamp_shadow(std::size_t const Slot, bool const Vehicles, TDynamicObject *Cab);
// picks the headlights which get shadow maps in this frame and draws the maps which need it
void Render_headlight_shadows();
// the map of the headlights in the slot: the scene within reach ahead of them (and Cab, the occupied cab), without their vehicle
void Render_headlight_shadow(std::size_t const Slot, light_array::light_record const &Light, TDynamicObject *Cab);
// the projector of the beam of a set of headlights: a narrow frustum along the vehicle, from behind it, its near plane at the
// end of the vehicle. the beam texture is projected with it (Update_Lights()) and the shadow map of the headlights drawn with it.
// Position in world space, Rotation from world axes to its axes; Near is the distance of the near plane from the projector
void Headlight_Projector(light_array::light_record const &Light, glm::dvec3 &Position, glm::mat3 &Rotation, glm::mat4 &Projection, float &Near, float &Fieldofview);
bool Render(world_environment *Environment);
void Render(scene::basic_region *Region);
void Render(section_sequence::iterator First, section_sequence::iterator Last);
@@ -556,6 +564,11 @@ class opengl46_renderer : public gfx_renderer {
// vehicles near the camera which cast the shadows of scenery lamps, and those of them by the lamp being drawn
std::vector<TDynamicObject *> m_lampshadowvehicles;
std::vector<TDynamicObject *> m_lampshadowslot;
// the shadow pass leaves this vehicle out (the one the headlights of the map being drawn belong to)
TDynamicObject const *m_shadowskipvehicle = nullptr;
// headlights which may get shadow maps in this frame, and their importance
std::vector<std::pair<float, light_array::light_record const *>> m_headlightshadowcandidates;
std::vector<light_array::light_record const *> m_headlightshadowpicked;
double m_precipitationrotation;