Textures are the wallpaper of the DOOM world. You apply textures to walls, floors and ceilings to define the appearance of a level; depending on the textures you select, your level could be a high-tech maze, or a mediaeval castle, or anything in-between.
There are two types of textures; wall textures and flat textures. Wall textures are applied to walls, and flat textures can be applied to floors and ceilings. Each texture, both wall and flat, has a name up to eight letters long. The available textures are defined in the main WAD file for the game (e.g. DOOM2.WAD). It is possible to make your own textures, but Hellmaker does not currently have this facility.
There are two ways to apply textures in Hellmaker. The first is by typing a texture name into the appropriate boxes in the properties area when a sidedef (for walls) or sector (for floors/ceilings) is selected:
 
 
The Texture Selector:
The second way to apply a texture is to use the Hellmaker's Texture Selector. To invoke the texture selector, hold down the option key while clicking in one of the texture name boxes as pictured above. The texture selector window should appear. It will contain the names and thumbnail images of all available textures. To see a larger view of a texture, simply click on the thumbnail image (note: all of the images may not be loaded until some minutes after Hellmaker is launched - they may still be viewed by clicking in the area where the image would appear).
 
To apply the texture to the wall/floor/ceiling, click on the Select button (this also closes the texture selector window). To return to the editing window without changing the texture, click on Cancel.
Texture Groups:
When you call up the texture selector, all available textures are displayed. However, when working on a particular level or section of a level, you will normally want to choose from a restricted set of textures.
Hellmaker provides a way to group textures so that only a selected set of thumbnails will be shown.
Texture groups can contain a custom set of textures. Hellmaker has one predefined and unchangeable texture group - the All Textures group. This group will be selected when you call up the texture selector, so all textures will be shown at the left.
To create a new texture group, click on the New button in the lower right of the texture selector. Hellmaker will ask you for a name for the new texture group. After you have provided a name, the new group will appear in the list of texture groups. You may then select the new group by clicking on it's name in the list. New groups initially contain no textures.
To move a texture into a texture group, first make sure the desired texture is visible in the left side of the texture selector. Then click and hold the mouse button on the texture - the cursor will change into a closed hand. Move the cursor over desired the texture group name and release the mouse button to drop the texture into the new group.
 
Textures can be removed from a texture group by dragging their thumbnail to the trashcan. They may also be moved within a group.
To rename an already-created texture group, select the group and click on the Rename button. To delete a texture group, drag it's name to the trashcan in the lower-right corner.
 
Any texture groups you create will be saved in Hellmaker's preference file and also available the next time you use Hellmaker.
