r_lightmap.cpp File Reference

#include "r_local.h"
#include "r_error.h"
#include "r_entity.h"
#include "r_lightmap.h"

Include dependency graph for r_lightmap.cpp:

Go to the source code of this file.

Functions
static void	R_UploadLightmapPage (void)
static bool	R_AllocLightmapBlock (int w, int h, int *x, int *y)
	returns a texture number and the position inside it More...
static void	R_BuildDefaultLightmap (mBspSurface_t *surf, byte *sout, byte *dout, int stride)
	Fullbridght lightmap. More...
static void	R_BuildLightmap (mBspSurface_t *surf, byte *sout, byte *dout, int stride)
	Consume raw lightmap and deluxemap RGB/XYZ data from the surface samples, and write them into the strided block in the atlas page. More...
void	R_CreateSurfaceLightmap (mBspSurface_t *surf)
static void	R_DisposeLightmaps (void)
void	R_BeginBuildingLightmaps (void)
void	R_EndBuildingLightmaps (void)
void	R_Trace (const Line &trLine, float size, int contentmask)
	Moves the given mins/maxs volume through the world from start to end. More...

Variables
lightmaps_t	r_lightmaps

Detailed Description

In video memory, lightmaps are chunked into NxN RGB pages. In the bsp, they are just sequentially stored RGB blocks per surface

Definition in file r_lightmap.cpp.

Function Documentation

R_AllocLightmapBlock()

static bool R_AllocLightmapBlock ( int  w, int  h, int *  x, int *  y  )

static

returns a texture number and the position inside it

Find a suitable location to store data in the texture atlas

Definition at line 96 of file r_lightmap.cpp.

References lightmaps_t::allocated, lightmaps_t::deluxemap_count, lightmaps_t::deluxemap_texnums, glGenTextures(), i, lightmaps_t::incomplete_atlas, lightmaps_t::lightmap_count, lightmaps_t::lightmap_texnums, r_lightmaps, and lightmaps_t::size.

Referenced by R_CreateSurfaceLightmap().

R_BeginBuildingLightmaps()

void R_BeginBuildingLightmaps

(

void

)

See also

R_ModBeginLoading

R_EndBuildingLightmaps

Definition at line 273 of file r_lightmap.cpp.

References lightmaps_t::allocated, lightmaps_t::deluxemap_count, DELUXEMAP_SAMPLE_SIZE, lightmaps_t::direction_buffer, lightmaps_t::incomplete_atlas, cvar_t::integer, lightmaps_t::lightmap_count, LIGHTMAP_SAMPLE_SIZE, Mem_PoolAllocTypeN, R_DisposeLightmaps(), r_lightmaps, r_maxlightmap, lightmaps_t::sample_buffer, lightmaps_t::size, and vid_lightPool.

Referenced by R_ModBeginLoading(), and R_ReinitOpenglContext().

R_BuildDefaultLightmap()

static void R_BuildDefaultLightmap ( mBspSurface_t *  surf, byte *  sout, byte *  dout, int  stride  )

static

Fullbridght lightmap.

See also

R_BuildLightmap

Definition at line 138 of file r_lightmap.cpp.

References DELUXEMAP_SAMPLE_SIZE, mBspSurface_t::lightColor, mBspSurface_t::lightmap, LIGHTMAP_SAMPLE_SIZE, mBspSurface_t::lightmap_scale, Mem_PoolAllocTypeN, mBspSurface_t::stextents, stride, Vector4Set, and vid_lightPool.

Referenced by R_CreateSurfaceLightmap().

R_BuildLightmap()

static void R_BuildLightmap ( mBspSurface_t *  surf, byte *  sout, byte *  dout, int  stride  )

static

Consume raw lightmap and deluxemap RGB/XYZ data from the surface samples, and write them into the strided block in the atlas page.

See also

R_BuildDefaultLightmap

Definition at line 174 of file r_lightmap.cpp.

References DELUXEMAP_SAMPLE_SIZE, mBspTexInfo_t::flags, mBspSurface_t::lightColor, mBspSurface_t::lightmap, LIGHTMAP_SAMPLE_SIZE, mBspSurface_t::lightmap_scale, Mem_PoolAllocTypeN, mBspSurface_t::samples, mBspSurface_t::stextents, stride, SURF_ALPHATEST, SURF_BLEND33, SURF_BLEND66, mBspSurface_t::texinfo, and vid_lightPool.

Referenced by R_CreateSurfaceLightmap().

R_CreateSurfaceLightmap()

void R_CreateSurfaceLightmap

(

mBspSurface_t *

surf

)

See also

R_ModLoadSurfaces

Definition at line 223 of file r_lightmap.cpp.

References Com_Error(), lightmaps_t::deluxemap_count, DELUXEMAP_SAMPLE_SIZE, mBspSurface_t::deluxemap_texnum, lightmaps_t::deluxemap_texnums, lightmaps_t::direction_buffer, ERR_DROP, mBspSurface_t::flags, mBspSurface_t::light_s, mBspSurface_t::light_t, lightmaps_t::lightmap_count, LIGHTMAP_SAMPLE_SIZE, mBspSurface_t::lightmap_scale, mBspSurface_t::lightmap_texnum, lightmaps_t::lightmap_texnums, MSURF_LIGHTMAP, R_AllocLightmapBlock(), R_BuildDefaultLightmap(), R_BuildLightmap(), r_lightmaps, R_UploadLightmapPage(), lightmaps_t::sample_buffer, mBspSurface_t::samples, lightmaps_t::size, and mBspSurface_t::stextents.

Referenced by R_ModLoadSurfaces(), and R_ReinitOpenglContext().

R_DisposeLightmaps()

static void R_DisposeLightmaps ( void  )

static

Definition at line 257 of file r_lightmap.cpp.

References lightmaps_t::deluxemap_count, lightmaps_t::deluxemap_texnums, lightmaps_t::lightmap_count, lightmaps_t::lightmap_texnums, and r_lightmaps.

Referenced by R_BeginBuildingLightmaps().

R_EndBuildingLightmaps()

void R_EndBuildingLightmaps

(

void

)

See also

R_BeginBuildingLightmaps

R_ModBeginLoading

Definition at line 298 of file r_lightmap.cpp.

References lightmaps_t::allocated, lightmaps_t::direction_buffer, Mem_Free, r_lightmaps, R_UploadLightmapPage(), and lightmaps_t::sample_buffer.

Referenced by R_ModEndLoading(), and R_ReinitOpenglContext().

R_Trace()

void R_Trace	(	const Line &	trLine,
		float	size,
		int	contentmask
	)

Moves the given mins/maxs volume through the world from start to end.

Parameters

[in]	trLine	Start and end vectors of the trace
[in]	size	Bounding box size used for tracing
[in]	contentmask	Searched content the trace should watch for

Definition at line 317 of file r_lightmap.cpp.

References entity_t::angles, CM_CompleteBoxTrace(), CM_TransformedBoxTrace, AABB::expand(), trace_t::fraction, i, m, trace_t::mapTile, rendererData_t::mapTiles, mapTiles_t::mapTiles, mod_bsp_submodel, entity_t::model, rendererData_t::numEntities, entity_t::origin, R_GetEntity(), r_locals, r_numMapTiles, refdef, tr, rendererData_t::trace, TRACE_ALL_LEVELS, rendererData_t::traceEntity, and rlocals_t::tracenum.

Referenced by R_DrawFlareSurfaces(), R_UpdateLightList(), and R_UpdateShadowOrigin().

R_UploadLightmapPage()

static void R_UploadLightmapPage ( void  )

static

Definition at line 34 of file r_lightmap.cpp.

References lightmaps_t::allocated, Com_Printf(), lightmaps_t::deluxemap_count, DELUXEMAP_SAMPLE_SIZE, lightmaps_t::deluxemap_texnums, lightmaps_t::direction_buffer, rconfig_t::gl_compressed_solid_format, rconfig_t::gl_solid_format, glGenTextures(), glTexImage2D(), glTexParameterf(), GLuint, lightmaps_t::incomplete_atlas, lightmaps_t::lightmap_count, LIGHTMAP_SAMPLE_SIZE, lightmaps_t::lightmap_texnums, MAX_GL_DELUXEMAPS, MAX_GL_LIGHTMAPS, R_BindTexture, R_CheckError, r_config, r_lightmaps, lightmaps_t::sample_buffer, and lightmaps_t::size.

Referenced by R_CreateSurfaceLightmap(), and R_EndBuildingLightmaps().

Variable Documentation

r_lightmaps

lightmaps_t r_lightmaps

Definition at line 32 of file r_lightmap.cpp.

Referenced by R_AllocLightmapBlock(), R_BeginBuildingLightmaps(), R_CreateSurfaceLightmap(), R_DisposeLightmaps(), R_EndBuildingLightmaps(), R_LoadBspVertexArrays(), and R_UploadLightmapPage().