Dirt and Bump Textures
Sample Dirt/Bump Map images from selected tracks:
| Grassland | Kingston Round 1 |
| Lost Meadow | Manchester Round 2 |
| Moto 448 | |
| Sugar Ridge MX | Lago Dell Orlo (Truck map with snow) |
Dirt Textures
There are 4 Dirt Textures. They can be used for Dirt, Grass, Rocks, etc. The normal size is either 1024x1024 or 512x512, but probably any power of 2 size is ok.
The dirt textures are key to how your track looks. When you are on your bike in Reflex you are looking at a giant circle surrounding you that is made up of textures layered together based on your MaskMapTexture Mask Map, base texture, and R/G/B channel textures. In addition there are several bump mapping layers which we currently are not using. In Reflex the ruts/dozer tracks that you see at the start of a race are applied using a loft (a model and a bump map of the ruts/dozer tracks that follows a path) which mimics the spline path.
If you are a seasoned track maker then forget about what you knew about making textures. What you used to do needs to match this layering and it is only visible off in the distance ahead of this giant circle of layered textures.
Hopefully in the future we will be able to create these final layers using a loft, but at this time we can't do it.
I will be putting up some sample images from Reflex of textures used on several different tracks.
You need to start with your MaskMapTexture Mask Map and paint that to pinpoint where you want your textures to go. Your base texture will be used where ever you paint black. The Channels R, G, and B are then used to tell when to use the other textures. A typical scenario might be that you have your base dirt, and then use a secondary dirt for your R channel. This can be mixed and blended with the base dirt, possibly to highlight areas or to better define the edges of the track. You can use your B or G channel for the grass area and then use a secondary off track texture to show different grass, dirt, or rocks. For best results you are better of blending these in different ways.
The Alpha channels of the textures can be used to control how the texture is blended together. It's best to experiment.
Bump Map Textures
Each channel has a corresponding Bump Map Texture. This texture is used to give your dirt texture depth (ie bumps). You can read more about bump mapping here. These textures like the dirt texture can be different sizes. The normal size for Reflex is 1024x1024 or 512x512.
