patches.c File Reference

#include "lighting.h"
#include "bsp.h"
#include "../../shared/images.h"

Include dependency graph for patches.c:

Go to the source code of this file.

Defines
#define	PATCH_SUBDIVIDE   64
Functions
void	CalcTextureReflectivity (void)
static winding_t *	WindingFromFace (const dBspSurface_t *f)
static qboolean	HasLight (const dBspSurface_t *f)
static void	EmissiveLight (patch_t *patch)
	Check for light emited by texture.
static void	BuildPatch (int fn, winding_t *w)
static entity_t *	EntityForModel (int modnum)
void	BuildPatches (void)
	Create surface fragments for light-emitting surfaces so that light sources may be computed along them. This function is responsible for one.
static void	FinishSubdividePatch (patch_t *patch, patch_t *newp)
static void	SubdividePatch (patch_t *patch)
	Chops the patch by a global grid.
void	SubdividePatches (void)
	Iterate all of the head face patches, subdividing them as necessary.
void	FreePatches (void)
	After light sources have been created, patches may be freed.
Variables
static vec3_t	texture_reflectivity [MAX_MAP_TEXINFO]
patch_t *	face_patches [MAX_MAP_FACES]

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Detailed Description

Definition in file patches.c.

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Define Documentation

#define PATCH_SUBDIVIDE   64

Definition at line 235 of file patches.c.

Referenced by SubdividePatch().

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Function Documentation

static void BuildPatch	(	int	fn,
		winding_t *	w
	)			[static]

Definition at line 140 of file patches.c.

References patch_s::area, curTile, EmissiveLight(), patch_s::face, dMapTile_t::faces, Mem_Alloc, patch_s::normal, dBspPlane_t::normal, patch_s::origin, dBspSurface_t::planenum, dMapTile_t::planes, dBspSurface_t::side, VectorCopy, VectorMA(), VectorNegate, patch_s::winding, WindingArea(), and WindingCenter().

Referenced by BuildPatches().

void BuildPatches

(

void

)

Create surface fragments for light-emitting surfaces so that light sources may be computed along them. This function is responsible for one.

Definition at line 194 of file patches.c.

References BuildPatch(), curTile, EntityForModel(), f, face_offset, dMapTile_t::faces, dBspModel_t::firstface, GetVectorForKey(), HasLight(), i, dMapTile_t::models, dBspModel_t::numfaces, dMapTile_t::nummodels, winding_s::numpoints, winding_s::p, VectorAdd, VectorCopy, and WindingFromFace().

Referenced by LightWorld().

void CalcTextureReflectivity

(

void

)

Definition at line 38 of file patches.c.

References byte, light_s::color, Com_sprintf(), curTile, i, Img_LoadImage(), MAX_QPATH, dMapTile_t::numtexinfo, pos, dMapTile_t::texinfo, texinfo_s::texture, texture_reflectivity, VectorCopy, VectorSet, VERB_EXTRA, VERB_NORMAL, and Verb_Printf().

Referenced by main().

static void EmissiveLight

(

patch_t *

patch

)

[inline, static]

Check for light emited by texture.

Note:

Surface lights

See also:

TexinfoForBrushTexture

Definition at line 130 of file patches.c.

References curTile, patch_s::face, HasLight(), patch_s::light, dBspSurface_t::texinfo, dMapTile_t::texinfo, texture_reflectivity, texinfo_s::value, and VectorScale.

Referenced by BuildPatch().

static entity_t* EntityForModel

(

int

modnum

)

[static]

Definition at line 173 of file patches.c.

References Com_sprintf(), entities, i, name, num_entities, and ValueForKey().

Referenced by BuildPatches().

static void FinishSubdividePatch	(	patch_t *	patch,
		patch_t *	newp
	)			[static]

Definition at line 237 of file patches.c.

References patch_s::area, patch_s::light, patch_s::normal, patch_s::origin, VectorCopy, VectorMA(), patch_s::winding, WindingArea(), and WindingCenter().

Referenced by SubdividePatch().

void FreePatches

(

void

)

After light sources have been created, patches may be freed.

Definition at line 326 of file patches.c.

References i, MAX_MAP_FACES, Mem_Free, and patch_s::next.

Referenced by LightWorld().

static qboolean HasLight

(

const dBspSurface_t *

f

)

[inline, static]

Definition at line 117 of file patches.c.

References curTile, SURF_LIGHT, texinfo_s::surfaceFlags, dBspSurface_t::texinfo, dMapTile_t::texinfo, and texinfo_s::value.

Referenced by BuildPatches(), and EmissiveLight().

static void SubdividePatch

(

patch_t *

patch

)

[static]

Chops the patch by a global grid.

Definition at line 265 of file patches.c.

References ClipWindingEpsilon(), FinishSubdividePatch(), i, Mem_Alloc, patch_s::next, ON_EPSILON, PATCH_SUBDIVIDE, VectorClear, patch_s::winding, and WindingBounds().

Referenced by SubdividePatches().

void SubdividePatches

(

void

)

Iterate all of the head face patches, subdividing them as necessary.

Definition at line 311 of file patches.c.

References i, MAX_MAP_FACES, and SubdividePatch().

Referenced by LightWorld().

static winding_t* WindingFromFace

(

const dBspSurface_t *

f

)

[static]

Definition at line 92 of file patches.c.

References AllocWinding(), curTile, dMapTile_t::edges, dBspSurface_t::firstedge, i, dBspSurface_t::numedges, winding_s::numpoints, winding_s::p, dBspVertex_t::point, RemoveColinearPoints(), dMapTile_t::surfedges, dBspEdge_t::v, VectorCopy, and dMapTile_t::vertexes.

Referenced by BuildPatches().

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Variable Documentation

patch_t* face_patches[MAX_MAP_FACES]

Definition at line 30 of file patches.c.

Referenced by BuildLights().

vec3_t texture_reflectivity[MAX_MAP_TEXINFO] [static]

Definition at line 29 of file patches.c.

Referenced by CalcTextureReflectivity(), and EmissiveLight().