Global Material Properties

This table contains all global properties that refer to materials. Global properties are only found in the header of an OBJ file.

Name	Arguments	Description
TEXTURE	filename	texture to be used with this object. all other texture properties for the object must follow directly after this.
TEXTURE_LIT	filename	lighting overlay
TEXTURE_NORMAL	filename	specular + normal map
GLOBAL_no_blend	ratio	ratio is the alpha cutoff ratio, from 0.0 to 1.0. Use instead of ATTR_no_blend if value is same for entire object.
GLOBAL_shadow_blend	ratio	default state of the object to shadow blending
GLOBAL_specular	ratio	default specular level of the object to ratio, from 0 to 1. Use instead of ATTR_shiny_rat.
GLOBAL_tint	albeto_tint emissive_tint	variance in brightness for instanced objects. The ratios are from 0.0 (no darkening, the default) to 1.0
GLOGAL_no_shadow		marks an object as being entirely excluded from shadowing
GLOBAL_cockpit_lit		changes ATTR_cockpit to use 3-d lighting, and it changes ATTR_cockpit_region to allow translucency
ATTR_layer_group	group offset	draws this object grouped in one layer. See valid layer groups. Offset is an integer between -5 and +5 and used to further refine drawing order.
ATTR_layer_group_draped	group offset	establishes the layer group for draped geometry. Group and offset are same as in ATTR_layer_group
ATTR_LOD_draped	max_LOD	establishes the maximum LOD distance for draped geometry. if it is omitted, draped geometry will take the maximum OBJ LOD distance.
TEXTURE_DRAPED	filename	texture for draped geometry. All other texture properties for draped geometry in the object must directly follow after this.
TODO: add missing draped texture properties

valid layer groups

• terrain
• beaches
• shoulders
• taxiways
• runways
• markings
• airports
• roads
• objects
• light_objects
• cars