Lightmap - Revision history

VorteX: /* Usage of lightmaps */

2013-02-20T19:10:48Z

‎Usage of lightmaps

VorteX at 19:10, 20 February 2013

2013-02-20T19:10:32Z

VorteX at 10:54, 7 October 2012

2012-10-07T10:54:51Z

VorteX: /* Lightmap types */

2012-10-07T10:54:08Z

‎Lightmap types

VorteX at 07:54, 9 August 2012

2012-08-09T07:54:20Z

VorteX at 07:49, 9 August 2012

2012-08-09T07:49:56Z

VorteX at 20:41, 30 July 2012

2012-07-30T20:41:22Z

VorteX at 20:33, 30 July 2012

2012-07-30T20:33:51Z

VorteX at 20:27, 30 July 2012

2012-07-30T20:27:25Z

VorteX at 20:27, 30 July 2012

2012-07-30T20:27:01Z

@@ Line 31: / Line 31: @@
 | width:50% | <font color=orange>Require high-resolution lightmaps or artifacts will occur</font>
 |-
-| align=right | Foliage (grass, mushrooms, many-side brushes etc.):
+| align=right | Foliage (grass, mushrooms etc.):
 | <font color=orange>Likely to overwhelm map size, as each object adds to lightmap data</font>
 |-

← Older revision		Revision as of 19:10, 20 February 2013
Line 25:		Line 25:

	There is no way to set explicitly what number of lightmaps map will have, it's calculated automatically - if map luxels can be mapped to one lightmap - compiler does it, otherwise it adds a second and more lightmap pages to fit.		There is no way to set explicitly what number of lightmaps map will have, it's calculated automatically - if map luxels can be mapped to one lightmap - compiler does it, otherwise it adds a second and more lightmap pages to fit.
		+
		+	== Usage of lightmaps ==
		+	{\| cellspacing=0 cellpadding=2 width=900
		+	\| width:50% align=right \| Small objects:
		+	\| width:50% \| <font color=orange>Require high-resolution lightmaps or artifacts will occur</font>
		+	\|-
		+	\| align=right \| Foliage (grass, mushrooms, many-side brushes etc.):
		+	\| <font color=orange>Likely to overwhelm map size, as each object adds to lightmap data</font>
		+	\|-
		+	\| align=right \| [[BModel \| Brush models]]:
		+	\|<font color=green>OK</font>
		+	\|-
		+	\| align=right \| Whole map:
		+	\| <font color=green>OK</font>
		+	\|-
		+	\| align=right \| Terrain:
		+	\| <font color=green>OK</font>
		+	\|-
		+	\| align=right \| [[Radiant/Glossary \| Point entities]]:
		+	\| <font color=red>not applicable</font>
		+	\|}

	==Console variables==		==Console variables==

@@ Line 20: / Line 20: @@
 There are two types of lightmaps - internal and external. Internal lightmaps are 128x128 pixel pages that are stored inside [[BSP (file) | BSP file]]. External lightmaps is 24-bit [[TGA]] images stored outside of BSP file (in map/bspfilename/lm_<num>).
-Map build script are used to configure whether map should use internal or external lightmaps.
+[[map build script|Map build script]] are used to configure whether map should use internal or external lightmaps.
 External lightmaps have an advantage - they can be any size (256x256, 512x512, 1024x1024 and up to hardware limits). For big outdoor maps using external large lightmaps results in better packing and lesser map size. Ideally, one map should have exactly one big external lightmap.

@@ Line 18: / Line 18: @@
 ==Lightmap types==
-There are two types of lightmaps - internal and external. Internal lightmaps are 128x128 pixel pages that are stored inside [[BSP (file) | BSP file]]. External lightmaps is 24-bit [[TGA]] images stored outside of BSP file (in map/bspfilename/lightmap_<num>).
+There are two types of lightmaps - internal and external. Internal lightmaps are 128x128 pixel pages that are stored inside [[BSP (file) | BSP file]]. External lightmaps is 24-bit [[TGA]] images stored outside of BSP file (in map/bspfilename/lm_<num>).
 Map build script are used to configure whether map should use internal or external lightmaps.

@@ Line 2: / Line 2: @@
 [[File:Lightmap deluxemap.jpg|thumb|512px|right|Lightmap and Deluxemap of the Kain's mausoleum]]
-Lightmap is generated texture that contains brightness of a map surface. It is applied additively to the surface texture to simulate lighting. The color values of surface's texture get multiplied by lightmap color. Lightmaps are created each time map is compiled (by a LIGHT phase of the map compiler). In Bloods Omnicide, lightmaps can only store static lightning, no flickering or moving lights (for this ones, [[realtime lighting | dynamic lightsources ]] should be used).
+Lightmap is generated texture that contains brightness of a map surface. It is applied additively to the surface texture. The color values of surface's texture get multiplied by lightmap color. Lightmaps are created each time map is compiled (by a LIGHT phase of the map compiler). In [[Q3BSP]], lightmaps can only store static lightning, no flickering or moving lights (for this ones dynamic lights should be used).
-−
-Most part of level lit by lightmaps, only some small places using dynamic lighting. Good map lighting should have wide rande of colors and nicely placed lights that cast correct shadows. Its a good rule to use lightmap to not only light up a level, but add some details to it. There is a bunch of delicate things when working with lightmaps. Good lightmaps are small, looking effective and have no visible artifacts. Basically there is no rules to make a good lightmaps with a first try. It always needs an eye inspection and some practice to make nicely illuminated levels.
 ==Lightmap resolution==
-Lightmap resolution is different from the [[texture]] resolution. Default luxel (lightmap pixel) size is 8 game units. Higher lightmap resolution = lower luxel scale = more memory overhead. There is a bunch of ways to control lightmap resolution:
+Lightmap resolution is different from the [[texture]] resolution. Default luxel (lightmap pixel) size is 8 game units. Higher lightmap resolution = lower luxel scale = more details = more memory used. There is a bunch of ways to control lightmap resolution:
 * Global luxel scale (set in [[map build script]])
@@ Line 17: / Line 15: @@
 ==Deluxemapping==
-Deluxemaps are part of lightmaps, while lightmaps store light intensity, deluxemaps store light vectors. Deluxemaps allows lightmapped surfaces to have normalmapping and specular effect applied, effectively making them more detailed.
+Deluxemaps are optional part of lightmaps, while lightmaps store light intensity, deluxemaps store light directions. Deluxemaps allows lightmapped surfaces to have normalmapping and specular effect applied, effectively making them more detailed and look just like dynamic lighting.
 ==Lightmap types==

@@ Line 4: / Line 4: @@
 Lightmap is generated texture that contains brightness of a map surface. It is applied additively to the surface texture to simulate lighting. The color values of surface's texture get multiplied by lightmap color. Lightmaps are created each time map is compiled (by a LIGHT phase of the map compiler). In Bloods Omnicide, lightmaps can only store static lightning, no flickering or moving lights (for this ones, [[realtime lighting | dynamic lightsources ]] should be used).
-Most part of level lit by lightmaps, only some small places using dynamic lighting. Good map lighting should have wide rande of colors and nicely placed lights that cast correct shadows. Its a good rule to use lightmap to not only light up a level, but add some details to it. There is a bunch of delicate things when working with lightmaps. Good lightmaps are small, looking effective and have no visible artifacts. Basically there is no rules to make a good lightmaps with a first try. It always needs an eye inspection and some practice to make nicely lit levels.
+Most part of level lit by lightmaps, only some small places using dynamic lighting. Good map lighting should have wide rande of colors and nicely placed lights that cast correct shadows. Its a good rule to use lightmap to not only light up a level, but add some details to it. There is a bunch of delicate things when working with lightmaps. Good lightmaps are small, looking effective and have no visible artifacts. Basically there is no rules to make a good lightmaps with a first try. It always needs an eye inspection and some practice to make nicely illuminated levels.
 ==Lightmap resolution==
@@ Line 17: / Line 17: @@
 ==Deluxemapping==
-In Blood Omnicide, lightmaps comes with interleaved deluxemaps (evens are lightmaps, odds are deluxemaps), which store light directions. This allows for per-pixel lightning effects (such as bumps and gloss) to be rendered for static lighting.
+Deluxemaps are part of lightmaps, while lightmaps store light intensity, deluxemaps store light vectors. Deluxemaps allows lightmapped surfaces to have normalmapping and specular effect applied, effectively making them more detailed.
 ==Lightmap types==
-There are two types of lightmaps - internal and external. Internal lightmaps are 128x128 pixel pages that are stored inside [[BSP (file) | BSP file]]. External lightmaps are 24-bit [[TGA]] images stored outside of BSP file (in map/bspfilename/lightmap_<num>).
+There are two types of lightmaps - internal and external. Internal lightmaps are 128x128 pixel pages that are stored inside [[BSP (file) | BSP file]]. External lightmaps is 24-bit [[TGA]] images stored outside of BSP file (in map/bspfilename/lightmap_<num>).
 Map build script are used to configure whether map should use internal or external lightmaps.
-External lightmaps have an advantage - they can be any size (256x256, 512x512, 1024x1024 and up to hardware limits). For big outdoor maps using external large lightmaps results in better packing and lesser map size. Ideally, one map should have exactly one big external lightmap. However, for practical reasons (saving HDD space), often there is 2 external lightmaps or many internal ones (to not mess up maps with many directories).
+External lightmaps have an advantage - they can be any size (256x256, 512x512, 1024x1024 and up to hardware limits). For big outdoor maps using external large lightmaps results in better packing and lesser map size. Ideally, one map should have exactly one big external lightmap.
 There is no way to set explicitly what number of lightmaps map will have, it's calculated automatically - if map luxels can be mapped to one lightmap - compiler does it, otherwise it adds a second and more lightmap pages to fit.
@@ Line 34: / Line 34: @@
 ==See also==
 * [[Darkplaces lighting]]
 * [[Vertex lighting]]
 [[Category:Darkplaces engine]]

@@ Line 1: / Line 1: @@
 [[File:Lightmap deluxemap.jpg|thumb|512px|right|Lightmap and Deluxemap of the Kain's mausoleum]]
@@ Line 39: / Line 40: @@
 [[Category:Glossary]]
 [[Category:Lighting]]
 __NOTOC__

← Older revision		Revision as of 20:33, 30 July 2012
Line 1:		Line 1:
−	~~{{WIP}}~~
	[[File:Lightmap deluxemap.jpg\|thumb\|512px\|right\|Lightmap and Deluxemap of the Kain's mausoleum]]		[[File:Lightmap deluxemap.jpg\|thumb\|512px\|right\|Lightmap and Deluxemap of the Kain's mausoleum]]

← Older revision		Revision as of 20:27, 30 July 2012
Line 1:		Line 1:
−	{{~~wip~~}}	+	{{WIP}}
	[[File:Lightmap deluxemap.jpg\|thumb\|512px\|right\|Lightmap and Deluxemap of the Kain's mausoleum]]		[[File:Lightmap deluxemap.jpg\|thumb\|512px\|right\|Lightmap and Deluxemap of the Kain's mausoleum]]