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DHC-6 Twin Otter development

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Re: DHC-6 Twin Otter development

Postby dg-505 » Thu Jan 29, 2015 4:34 pm

cool :D :!: :mrgreen:
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Re: DHC-6 Twin Otter development

Postby tauchergreg » Thu Jan 29, 2015 6:39 pm

looks great :D :D :D
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Re: DHC-6 Twin Otter development

Postby CaptB » Thu Jan 29, 2015 7:35 pm

Image

Looks ok? The problem is that the spinner is not animated, it just does not rotate along with the blades so it's quite clumsy. someone should animate this ;)
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Re: DHC-6 Twin Otter development

Postby Johan G » Thu Jan 29, 2015 7:44 pm

With a bit of luck it could actually be quite easy to do that.

  1. Find the model and animation xml
  2. Find the animation for the propeller
  3. Add the spinner object to the animation*

* ...and hope that both the spinner and the propeller hub is modeled to be coaxial with the x axis :wink:
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Re: DHC-6 Twin Otter development

Postby CaptB » Thu Jan 29, 2015 8:56 pm



Looks good, no? :)
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Re: DHC-6 Twin Otter development

Postby Johan G » Thu Jan 29, 2015 9:19 pm

Apart from the asymmetric texture, yes very much. :)
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Re: DHC-6 Twin Otter development

Postby dg-505 » Thu Jan 29, 2015 10:53 pm

Yeah, looks really good! :D
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Re: DHC-6 Twin Otter development

Postby tauchergreg » Fri Jan 30, 2015 2:55 pm

hello dg-505,

on the door you can see the text from the left side

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Re: DHC-6 Twin Otter development

Postby CaptB » Fri Jan 30, 2015 6:33 pm

Johan G wrote in Thu Jan 29, 2015 9:19 pm:Apart from the asymmetric texture, yes very much. :)


It's the default texture, is it the UV mapping or was it that way before?
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Re: DHC-6 Twin Otter development

Postby Johan G » Fri Jan 30, 2015 6:45 pm

It is only the texture. The UV mapping should be just fine.

I would guess that the spinner was textured with a highlight* on top to emulate shininess and some glint.

* In essence a small area with a lighter color.
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Re: DHC-6 Twin Otter development

Postby CaptB » Fri Jan 30, 2015 8:09 pm

Johan G wrote in Fri Jan 30, 2015 6:45 pm:It is only the texture. The UV mapping should be just fine.

I would guess that the spinner was textured with a highlight* on top to emulate shininess and some glint.

* In essence a small area with a lighter color.


Of course, the spinner did not need to be animated previously so it looked ok, all changed now that it spins along with the prop. NOW it hit me :D

I have a possible solution for this, needs some new objects and additional texture.
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Re: DHC-6 Twin Otter development

Postby dg-505 » Fri Jan 30, 2015 10:08 pm

tauchergreg wrote in Fri Jan 30, 2015 2:55 pm:on the door you can see the text from the left side

Ah. Thats's a texturing problem.

Here is a small update.

Changes:
- Some details added: antennas, headlights for the landing lights, and others
- Texturing fix
- The door-closing sound of Patten's version was a bit delayed; that's also fixed: Now the closing sound is heard exactly then, when the doors close
- Some effects added like tyresmoke on landing (my first lines of nasal code, yeah! :mrgreen: ) and exhaust smoke when starting the engines.
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Re: DHC-6 Twin Otter development

Postby CaptB » Fri Jan 30, 2015 10:29 pm

1- Who do I send the prop changes to?
2- What needs to be done to the floats?
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Re: DHC-6 Twin Otter development

Postby dg-505 » Fri Jan 30, 2015 10:31 pm

CaptB wrote in Fri Jan 30, 2015 10:29 pm:Who do I send the prop changes to?


You can send it to me, then I'll udate the link above
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Re: DHC-6 Twin Otter development

Postby Honzaku » Fri Jan 30, 2015 11:09 pm

Hello,

You all have done awesome work, however you missed some small detail in propeller animation. The Twin Otter is equiped by free-turbine type of a turboprop engine. This kind of powerplant usually feathers the propeller if the engine is not running. So the engine spinup is starting with prop blades in feathered position and when the engine is already started the pilot or automatic control sets the prop to fine pitch. In your animation the propeller starts to rotate with fine pitch. That would be true for most single-shaft turboprops like older russian turboprops, Fokker f-27, Transall, Hercules etc.., but not for Twin Otter. See following videos:

Free turbine turboprops:

Twin Otter: https://www.youtube.com/watch?v=4HESi7etVO4

Let L-410: https://www.youtube.com/watch?v=mkgufcUCzN4

Single shaft turboprops:

Fokker F-27: https://www.youtube.com/watch?v=ccEPCh1YbLM

Antonov An-26: https://www.youtube.com/watch?v=kxX770rkSO8

Cheers!

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