r_lightmap.cpp File Reference

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

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

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_s::allocated, lightmaps_s::deluxemap_count, lightmaps_s::deluxemap_texnums, glGenTextures(), i, lightmaps_s::incomplete_atlas, lightmaps_s::lightmap_count, lightmaps_s::lightmap_texnums, and lightmaps_s::size.

Referenced by R_CreateSurfaceLightmap().

void R_BeginBuildingLightmaps

(

void

)

See also

R_ModBeginLoading

R_EndBuildingLightmaps

Definition at line 273 of file r_lightmap.cpp.

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

Referenced by R_ModBeginLoading(), and R_ReinitOpenglContext().

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_s::lightColor, mBspSurface_s::lightmap, LIGHTMAP_SAMPLE_SIZE, mBspSurface_s::lightmap_scale, Mem_PoolAllocTypeN, mBspSurface_s::stextents, Vector4Set, and vid_lightPool.

Referenced by R_CreateSurfaceLightmap().

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_s::flags, mBspSurface_s::lightColor, mBspSurface_s::lightmap, LIGHTMAP_SAMPLE_SIZE, mBspSurface_s::lightmap_scale, Mem_PoolAllocTypeN, mBspSurface_s::samples, mBspSurface_s::stextents, SURF_ALPHATEST, SURF_BLEND33, SURF_BLEND66, mBspSurface_s::texinfo, and vid_lightPool.

Referenced by 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_s::deluxemap_count, DELUXEMAP_SAMPLE_SIZE, mBspSurface_s::deluxemap_texnum, lightmaps_s::deluxemap_texnums, lightmaps_s::direction_buffer, ERR_DROP, mBspSurface_s::flags, mBspSurface_s::light_s, mBspSurface_s::light_t, lightmaps_s::lightmap_count, LIGHTMAP_SAMPLE_SIZE, mBspSurface_s::lightmap_scale, mBspSurface_s::lightmap_texnum, lightmaps_s::lightmap_texnums, MSURF_LIGHTMAP, R_AllocLightmapBlock(), R_BuildDefaultLightmap(), R_BuildLightmap(), R_UploadLightmapPage(), lightmaps_s::sample_buffer, mBspSurface_s::samples, lightmaps_s::size, and mBspSurface_s::stextents.

Referenced by R_ModLoadSurfaces(), and R_ReinitOpenglContext().

static void R_DisposeLightmaps ( void  )

static

Definition at line 257 of file r_lightmap.cpp.

References lightmaps_s::deluxemap_count, lightmaps_s::deluxemap_texnums, lightmaps_s::lightmap_count, and lightmaps_s::lightmap_texnums.

Referenced by R_BeginBuildingLightmaps().

void R_EndBuildingLightmaps

(

void

)

See also

R_BeginBuildingLightmaps

R_ModBeginLoading

Definition at line 298 of file r_lightmap.cpp.

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

Referenced by R_ModEndLoading(), and R_ReinitOpenglContext().

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 model_s::bsp, CM_CompleteBoxTrace(), CM_TransformedBoxTrace, AABB::expand(), mBspModel_s::firstnode, trace_s::fraction, i, m, trace_s::mapTile, mBspModel_s::maptile, mapTiles_s::mapTiles, rendererData_t::mapTiles, mod_bsp_submodel, rendererData_t::numEntities, entity_t::origin, R_GetEntity(), r_locals, r_numMapTiles, refdef, tr, rendererData_t::trace, TRACE_ALL_LEVELS, rendererData_t::traceEntity, rlocals_s::tracenum, and model_s::type.

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

static void R_UploadLightmapPage ( void  )

static

Definition at line 34 of file r_lightmap.cpp.

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

Referenced by R_CreateSurfaceLightmap(), and R_EndBuildingLightmaps().

Variable Documentation

lightmaps_t r_lightmaps

Definition at line 32 of file r_lightmap.cpp.

Referenced by R_LoadBspVertexArrays().