Difference between revisions of "Car graphics"

From VDrift
Jump to: navigation, search
Line 1: Line 1:
 
Cars in VDrift are composed of multiple components. Their graphical representation consists of geometry(mesh), textures and a draw flag which denotes whether the object is to be handled as opaque, transparent or emissive. The setup is done in [[car parameters]] files <CARNAME>.car.
 
Cars in VDrift are composed of multiple components. Their graphical representation consists of geometry(mesh), textures and a draw flag which denotes whether the object is to be handled as opaque, transparent or emissive. The setup is done in [[car parameters]] files <CARNAME>.car.
 +
 +
Geometry(meshes) can share textures. The number of meshes and textures should be kept low for performance reasons.
 +
 +
Example of a graphical component setup:
 +
<pre>
 +
[some_car_part]
 +
texture = diffuse.png, misc1.png, misc2.png  # (required) surface texture; the first texture(diffuse.png) is required, additional textures(misc1.png, misc2.png)are optional
 +
mesh = model.joe                            # (required) geometry (mesh)
 +
position = 0.736, 1.14, -0.47                # (optional) relative mesh position
 +
rotation = 0, 0, 30                          # (optional) relative mesh orientation
 +
scale = -1, 1, 1                            # (optional) mesh scale
 +
color = 0.8, 0.1, 0.1                        # (optional) base diffuse color; blended with diffuse texture using alpha channel as mask
 +
draw = transparent                          # (optional) draw flag: opaque, transparent, emissive; opaque is default
 +
</pre>
 
==Geometry==
 
==Geometry==
 
Car geometry is stored in VDrift native [[JOE format]]. Import/export scripts for [http://www.blender.org Blender] are available here: https://github.com/VDrift/blender-scripts
 
Car geometry is stored in VDrift native [[JOE format]]. Import/export scripts for [http://www.blender.org Blender] are available here: https://github.com/VDrift/blender-scripts
Line 16: Line 30:
 
====Car Skins====
 
====Car Skins====
 
todo
 
todo
 +
[[Category:Cars]]

Revision as of 03:50, 5 April 2013

Cars in VDrift are composed of multiple components. Their graphical representation consists of geometry(mesh), textures and a draw flag which denotes whether the object is to be handled as opaque, transparent or emissive. The setup is done in car parameters files <CARNAME>.car.

Geometry(meshes) can share textures. The number of meshes and textures should be kept low for performance reasons.

Example of a graphical component setup:

[some_car_part]
texture = diffuse.png, misc1.png, misc2.png  # (required) surface texture; the first texture(diffuse.png) is required, additional textures(misc1.png, misc2.png)are optional
mesh = model.joe                             # (required) geometry (mesh)
position = 0.736, 1.14, -0.47                # (optional) relative mesh position
rotation = 0, 0, 30                          # (optional) relative mesh orientation 
scale = -1, 1, 1                             # (optional) mesh scale
color = 0.8, 0.1, 0.1                        # (optional) base diffuse color; blended with diffuse texture using alpha channel as mask
draw = transparent                           # (optional) draw flag: opaque, transparent, emissive; opaque is default

Geometry

Car geometry is stored in VDrift native JOE format. Import/export scripts for Blender are available here: https://github.com/VDrift/blender-scripts

Shared Geometry

todo

Generated Geometry

todo

Textures

VDrift supports multi-texturing for more realistic geometry surface graphics. Texture are RGBA images in PNG format. As of April 2013 DDS(DXT1-3) is also supported.

  • 1. Texture (required): Diffuse color (diffuse albedo or diffuse reflectance) in the RGB channels and Color Blending mask in the A channel.
  • 2. Texture (optional): Specular reflection (fresnel reflection coeff at 0 deg) in the RGB channels and Glossiness (surface roughness) in the A channel.
  • 3. Texture (optional): Normal map (tangent space normals) in the RGB channels.

Shared Textures

todo

Car Skins

todo