#include "common/shared.h"
#include "common/bspfile.h"
#include "common/polylib.h"

Include dependency graph for lighting.h:

This graph shows which files directly or indirectly include this file:

Data Structures
struct	patch_t

Macros
#define	MAX_PATCHES 65000 /* larger will cause 32 bit overflows */

Functions
void	BuildFacelights (unsigned int facenum)
void	FinalLightFace (unsigned int facenum)
	Add the indirect lighting on top of the direct lighting and save into final map format.
void	ExportLightmaps (const char *bspFileName)
	Export the day and night lightmap and direction data for the given map.
void	BuildLights (void)
	Create lights out of patches and entity lights.
void	BuildPatches (void)
	Create surface fragments for light-emitting surfaces so that light sources may be computed along them.
void	SubdividePatches (void)
	Iterate all of the head face patches, subdividing them as necessary.
void	CalcTextureReflectivity (void)
	Calculates the texture color that is used for light emitting surfaces.
void	LightWorld (void)
	Build the lightmap out of light entities and surface lights (patches).
void	BuildVertexNormals (void)
	Calculate per-vertex (instead of per-plane) normal vectors. This is done by finding all of the faces which share a given vertex, and calculating a weighted average of their normals.
void	FreePatches (void)
	After light sources have been created, patches may be freed.

Variables
patch_t *	face_patches [MAX_MAP_FACES]
vec3_t	face_offset [MAX_MAP_FACES]

Macro Definition Documentation

◆ MAX_PATCHES

#define MAX_PATCHES 65000 /* larger will cause 32 bit overflows */

Definition at line 31 of file lighting.h.

Function Documentation

◆ BuildFacelights()

void BuildFacelights ( unsigned int facenum )

See also: FinalLightFace

Definition at line 753 of file lightmap.cpp.

References CalcLightinfoExtents(), CalcLightinfoVectors(), CalcPoints(), Com_Printf(), config, curTile, facelight_t::directions, dBspPlane_t::dist, DotProduct, lightinfo_t::face, face_extents, face_offset, lightinfo_t::facedist, facelight, lightinfo_t::facenormal, GatherSampleLight(), i, MAX_MAP_FACES, MAX_SAMPLES, Mem_AllocTypeN, Mem_Free, lightinfo_t::modelorg, dBspPlane_t::normal, NudgeSamplePosition(), numlights, facelight_t::numsamples, lightinfo_t::numsurfpt, OBJZERO, dBspSurface_t::planenum, SampleNormal(), sampleofs, facelight_t::samples, scale, dBspSurface_t::side, SOFT_SAMPLES, lightinfo_t::step, SURF_PHONG, SURF_WARP, dBspTexinfo_t::surfaceFlags, lightinfo_t::surfpt, TangentVectors(), dBspSurface_t::texinfo, lightinfo_t::textoworld, dBspTexinfo_t::vecs, VectorCopy, VectorEmpty, VectorMA(), VectorNegate, VectorNormalize(), VectorNotEmpty, and VectorSet.

Referenced by LightWorld().

◆ BuildLights()

void BuildLights ( void )

Create lights out of patches and entity lights.

See also: LightWorld; BuildPatch

Definition at line 293 of file lightmap.cpp.

References ANGLE_DOWN, ANGLE_UP, AngleVectors(), light_t::color, ColorNormalize(), Com_Printf(), config, dest, emit_point, emit_spotlight, emit_surface, entities, f, face_patches, FindTargetEntity(), FloatForKey(), GetVectorForKey(), GetVectorFromString(), i, light_t::intensity, lights, MAX_MAP_FACES, Mem_AllocType, name, light_t::next, light_t::normal, num_entities, numlights, light_t::origin, Q_streq, Q_strstart(), light_t::stopdot, sun_ambient_color, sun_angles, sun_color, sun_intensity, sun_normal, Sys_Error(), torad, light_t::type, ValueForKey(), VectorClear, VectorCopy, VectorEmpty, VectorNormalize(), VectorSet, VectorSubtract, VERB_EXTRA, VERB_NORMAL, and Verb_Printf().

Referenced by LightWorld().

◆ BuildPatches()

void BuildPatches ( void )

Create surface fragments for light-emitting surfaces so that light sources may be computed along them.

Definition at line 198 of file patches.cpp.

References BuildPatch(), curTile, EntityForModel(), f, face_offset, face_patches, dBspModel_t::firstface, GetVectorForKey(), HasLight(), i, dBspModel_t::numfaces, winding_t::numpoints, OBJZERO, winding_t::p, VectorAdd, VectorCopy, and WindingFromFace().

Referenced by LightWorld().

◆ BuildVertexNormals()

void BuildVertexNormals ( void )

Calculate per-vertex (instead of per-plane) normal vectors. This is done by finding all of the faces which share a given vertex, and calculating a weighted average of their normals.

Definition at line 673 of file lightmap.cpp.

References BuildFaceExtents(), curTile, face_extents, FacesWithVert(), i, MAX_VERT_FACES, extents_t::maxs, extents_t::mins, dBspPlane_t::normal, dBspSurface_t::planenum, scale, dBspSurface_t::side, VectorAdd, VectorClear, VectorLength(), VectorNormalize(), VectorScale, and VectorSubtract.