View source for Es/$bumpmap

{{LanguageBar}}
{{this is a|shader parameter|notext=1|name=$bumpmap}}

[[File:Brickwall021a normalcompare.jpg|thumb|Un {{L|albedo}} (izq.) comparado con un relieve.]]
[[File:Example of bump mapping.jpg|thumb|El material de arriba en el juego.]]
Especifica una {{L|texture|textura}} que tendrá iluminación tridimensional e información para un material. La textura es un {{L|bump map|relieve}}, pero el proceso es un [https://es.wikipedia.org/wiki/Mapeado_normal mapeado normal]. Aunque ambos términos se utilizan indistintivamente.

{{warning|<code>$bumpmap</code> desactivará la iluminación por vértice de {{ent|prop_static}} en los juegos Source previos a {{csgobranch|4}}.<br>
No hay mucha información en los vértices de un mapeado normal, por lo que el motor no tiene opción de retroceder.}}
{{Important|<code>$bumpmap</code> no existe para {{code|{{L|LightmappedReflective}}}}. En su lugar se debe usar <code>$normalmap</code>.}}

{{note|
* En el sombreado <code>{{L|Water_(shader)|Water}}</code>, <code>$bumpmap</code> es para DX8 {{L|Du/dv_map|du/dv map}}. Se usa <code>$normalmap</code> en su lugar.
* Los relieves no se pueden usar sobre texturas adhesivas, excepto en {{csgobranch|4}}.
* On {{ent|VertexLitGeneric}} using {{ent|$lightwarptexture}} will force bumpmapping even if <code>$bumpmap</code> is not in the VMT. A default one is bound instead, all <code>$bumpmap</code> caveats come with it.}}
{{bug| <code>$bumpmap</code> causes some other Parameters to not work. Parameters that will break with <code>$bumpmap</code> are ( but not limited to ) :
* Will not work with materials using {{ent|$envmapmask}}. Except on {{ent|VertexLitGeneric}}{{mapbase|only}} and {{ent|LightmappedGeneric}}{{csgo|only}}. See [[$envmapmask#Alternative_methods|Alternative methods]].
* In {{csgo}} {{ent|LightmappedGeneric}}, [[$detail#Parameters and Effects|$detailblendmode]] 9 cannot be used.
* In {{csgo}} {{ent|VertexLitGeneric}}, [[$detail#Parameters and Effects|$detailblendmode]] 5, 6, 8, 9, 10 and 11 not usable. With {{ent|$phong}} 5 and 6 can be used.
* In {{src13}}{{tf2}}{{as}} {{ent|VertexLitGeneric}}, [[$detail#Parameters and Effects|$detailblendmode]] 5-11 not usable. With {{ent|$phong}} 5 and 6 can be used.
* In {{src13}}{{tf2}}{{as}}{{csgo}} [[$detail#Parameters and Effects|$detailtint]] won't work.
* {{ent|$distancealpha}}, {{ent|$outline}}, {{ent|$softedges}} won't work.
* On {{ent|LightmappedGeneric}}, cannot be used with {{ent|$basealphaenvmapmask}}
}}

==Sintaxis básica==
<syntaxhighlight lang=php highlight=5>
LightmappedGeneric
{
	$basetexture	brick/brickwall021a
	$surfaceprop	brick
	$bumpmap		brick/brickwall021a_normal
}
</syntaxhighlight>

==Parámetros adicionales==
{{MatParam|$bumptransform|matrix|Transforms the bump map texture. {{todo|Does this actually require DX9? Present in DX8 fallback shaders.}}
: {{bug|Does not work when using {{ent|$detail}}. This ''does'' work in {{csgobranch}}.}}
{{VMT UVtransform}}|dx9=1}}
{{MatParam|$bumpframe|int|The frame to start an animated bump map on.}}
{{MatParam|$nodiffusebumplighting|bool|Stops the bump map affecting the lighting of the material's {{L|albedo}}, which help combat [[Material optimization#Overdraw|overdraw]]. Does not affect the {{L|specular}} map, making it useful for distorted reflections on flat surfaces.
: {{bug|Does not function beyond {{src07|2}}.{{confirm}}}}
: {{note|Functions with {{L|$ssbump}} but not regular normals on {{game link|Source 2013}}. More testing required?}}
|shaders=LightmappedGeneric, Lightmapped_4WayBlend, WorldVertexTransition}}
{{MatParam|$ssbump|bool|Flags the bump map texture(s) as being self-shadowing. Click for more details.|since={{src07}}|shaders=LightmappedGeneric, Lightmapped_4WayBlend, WorldVertexTransition}}
{{MatParam|$forcebump|bool|If 0, use bumpmapping if the card says it can handle it. If 1, always force bumpmapping on.|dx8=1|removed={{l4d}}}}
{{MatParam|$bump_force_on|bool|Force bump mapping on, even for low-end machines.|since={{portal2}}|shaders=LightmappedGeneric, Lightmapped_4WayBlend, WorldVertexTransition}}
{{MatParam|$addbumpmaps|bool|Enables the usage and blending of two bump maps together for {{ent|LightmappedGeneric}}.|only={{csgobranch}}|shaders=LightmappedGeneric}}
{{MatParam|$bumpmap2|texture|The second bump map to use, either for {{ent|WorldVertexTransition}} or for <code>LightmappedGeneric</code> in {{csgobranch}} for bump map blending.|dx9=1|shaders=LightmappedGeneric, Lightmapped_4WayBlend, WorldVertexTransition}}
{{MatParam|$bumpframe2|int|Same as <code>$bumpframe</code>, but for the second bump map.|dx9=1|shaders=LightmappedGeneric, Lightmapped_4WayBlend, WorldVertexTransition}}
{{MatParam|$bumptransform2|matrix|Same as <code>$bumptransform</code>, but for the second bump map.
: {{Note|{{ent|$detail}} used with <code>$detailscale</code> will override this on <code>LightmappedGeneric</code> if the shader is using <code>$addbumpmaps</code>.}}|dx9=1|shaders=LightmappedGeneric, Lightmapped_4WayBlend, WorldVertexTransition}}
{{MatParam|$bumpmask|texture|If using two bump maps, use a third bump map to act as the base, with the alpha channel acting as a mask for the first two bump maps. The alpha channel of <code>$bumpmask</code> is also used as a specular mask.
: {{note|Only used by {{hl2}}<code>materials/nature/toxicslime002a</code>.}}
: {{note|Does not work with {{ent|$detail}} and {{ent|$seamless_scale}}.}}|dx9=1|shaders=LightmappedGeneric}}
{{MatParam|$bumpdetailscale1|and=$bumpdetailscale2|normal|The strength of the first and second bump maps for bump map blending.|only={{csgobranch}}|shaders=LightmappedGeneric}}

==Comandos de consola==
{{IO|mat_fastnobump|param=bool|Quickly enables/disabled normal mapping.}}
{{IO|mat_normalmaps|param=bool|Displays the bump map texture of all materials that have one in place of their {{L|albedo}}.}}
:(¡Sí, los nombres de estos comandos están erróneos!)
{{IO|mat_bumpmap|param=bool|Enable or disable normal mapping. Default 1.}}

==Véase también==
* {{ent|$ssbump}}
* {{L|Bump map|Relieve}}, utilizado para técnicas de detallado.