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FlightGear Newsletter September 2014: Difference between revisions
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FlightGear Newsletter September 2014 (view source)
Revision as of 22:25, 18 September 2014
, 18 September 2014→Interview with a contributor
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Consult your mobile devices operation manual about how to add a web page as a full screen App. | Consult your mobile devices operation manual about how to add a web page as a full screen App. | ||
== Dynamic Liveries via Canvas / Proof of Concept: Exhaust dirt== | |||
''by [[User:Algernon|Algernon]] ([[User talk:Algernon|talk]]) 17:09, 17 September 2014 (UTC) '' | |||
To document the implementation on a FlightGear aircraft from the aircraft developer's point of view, I've chosen one of my pet projects, the Eurofighter EF2000 V2.0 which will be released in early 2015. | |||
The intention is to use Canvas to allow multiple textures per livery, in this case those textures being the original livery paintwork and another, alpha-transparent texture consisting of dirt streaks specifically added to the livery paintwork to match with vents, seams and other sources of grimy build-ups. The intention is to allow dynamic management of the transparency of the dirt layer according to time and exposure to various elements, maintaining compatibility with the standard livery switching method and working similarly whether Rembrandt is enabled or not. | |||
<gallery mode="packed"> | |||
Two-layers.jpg|The two textures concerned, the ASG paintwork and the separate alpha transparency with dirt streaks | |||
Dynamic-Textures-First-Try.jpg|A first (failed) attempt to put a canvas onto a model object in place of its texture. | |||
Ef2000dyn1.jpg|The EF2000 showing a dynamically-changed texture on the fuselage - at the moment, the resolution appears to be wrong and the UV coordinates seem to be being ignored. | |||
File:Ef2000dyn2.jpg|Changing the dialog window size to be the same size as the texture fixed the issue - note that the fuselage sections are free of dirt (except the APU exhaust smudge, which is a special case) where as the wings and tail have integral dirt in the texture. | |||
File:Ef2000dyn3.jpg|A full-screen illustration using the updated Canvas code to make the canvas independent of the window, but with the window still displaying the canvas. Here, only the base "clean" paintwork texture is added to the fuselage element. | |||
File:Ef2000dyn4.jpg|After creating a canvas with the base "clean" paintwork texture, another child is added containing the dirt layer transparency. The effect is seen both in the dialog window and on the airframe. | |||
</gallery> | |||
To learn more, see [[Howto:Dynamic Liveries via Canvas]] | |||
== Interview with a contributor == | == Interview with a contributor == | ||