Changes

[[File:Canvas-livery-demo-using-ogle.png|left|400px|A screen shot showing the ogel aircraft whose livery is dynamically changed using the [[Canvas]] system - in this case, we're simply rendering a [[MapStructure]] map onto the face of the pilot using ~10 lines of Nasal/Canvas code.]]

[[File:Canvas-livery-demo-using-ogle.png|left|400px|A screen shot showing the ogel aircraft whose livery is dynamically changed using the [[Canvas]] system - in this case, we're simply rendering a [[MapStructure]] map onto the face of the pilot using ~10 lines of Nasal/Canvas code.]]

== Example ==

== Example ==

<syntaxhighlight lang="nasal">

<syntaxhighlight lang="nasal">

# create a new window, dimensions are 320 x 160, using the dialog decoration (i.e. titlebar)

# create a new window, dimensions are 320 x 160, using the dialog decoration (i.e. titlebar)

</syntaxhighlight>

</syntaxhighlight>

== Objective ==

== Background ==

{{FGCquote

{{FGCquote

   |Does anyone know if it's possible for FG to work with a texture which consists of two images, and manipulate those images seperately? The application here is airframe dirt - I'm trying to find out if I can have one texture for the aircraft livery, and another for accumulated dirt, which would gradually become less transparent as the airframe hours increase. I am aware of the questionable advisability of using alpha channels excessively in FG, this is just an experiment at the moment.  

   |Does anyone know if it's possible for FG to work with a texture which consists of two images, and manipulate those images seperately? The application here is airframe dirt - I'm trying to find out if I can have one texture for the aircraft livery, and another for accumulated dirt, which would gradually become less transparent as the airframe hours increase. I am aware of the questionable advisability of using alpha channels excessively in FG, this is just an experiment at the moment.