Difference between revisions of "Vtex compile parameters"

From Valve Developer Community
Jump to: navigation, search
m (dxt5: Linked to new article.)
m (clamps, clampt)
Line 26: Line 26:
  
 
Do not allow the texture to wrap in the S or T coordinate space, respectively. This is most often used for sprites that are not tiled.
 
Do not allow the texture to wrap in the S or T coordinate space, respectively. This is most often used for sprites that are not tiled.
 
+
{{tip|When a texel is requested that is outside of the texture, one of two techniques is used: '''Clamping''' limits the texel to the texture size, moving it to the nearest if it is more than the texture size. '''Wrapping''' makes the texel move back into the texture by increments (each to size of the texture). Wrapping causes a texture to be repeated; clamping causes it to be in one spot only.}}
 
 
  
 
=== dxt5 ===
 
=== dxt5 ===

Revision as of 21:34, 12 May 2008

Vtex can accept a list of additional compile parameters during its execution. These parameters are optional, but sometimes necessary to get a good result.

The list is written in the form of a simple text (.txt) document with the same name as the targa (.tga) image to compile, and it should be put in the same folder asit, namely in the SteamApps/username/sourcesdk_content/gamefolder/materialsrc/ folder, where gamefolder is the game folder of the current game (cstrike/dod/hl2/hl2mp).


Example usage from one of the files for the console background:

"nonice" "1"
"nolod" "1"
"nomip" "1"


List of parameters

Below is a list of Vtex compile parameters, in alphabetical order.


bumpscale

To do: Something to do with heightmaps, and possibly normal maps. More specifically how it should convert a heightmap into a normal map and how much to exaggerate/intensify it.

clamps, clampt

Do not allow the texture to wrap in the S or T coordinate space, respectively. This is most often used for sprites that are not tiled.

Tip:When a texel is requested that is outside of the texture, one of two techniques is used: Clamping limits the texel to the texture size, moving it to the nearest if it is more than the texture size. Wrapping makes the texel move back into the texture by increments (each to size of the texture). Wrapping causes a texture to be repeated; clamping causes it to be in one spot only.

dxt5

Use DXT5 compression instead of full compression.

nocompress

Do not use compression on this texture. Useful for textures with fine gradation (like light halos).


nolod

Do not use lower quality versions of this texture in lower DirectX versions. Used for non-world graphics such as HUD art.


nomip

Do not make mip-levels for this texture. Used for materials like skyboxes and menu backgrounds.


nonice

Do not use NICE filtering on this texture’s lower mip-levels.

normal

To do: Possibly something to do with heightmaps and normal maps.


skybox

Used for compiling skyboxes. This assures the edges match between each facet.


startframe (integer), endframe (integer)

Used for animated textures. Textures must be named as texture000, texture001, texture002, etc. The startframe defines the beginning frame and the endframe defines the ending frame.


See also