Re: [Flightgear-devel] DHC-6 progress
On Fri, Sep 09, 2005 at 10:07:43PM +0200, [EMAIL PROTECTED] wrote: Problems: - blender has problems with flipping normals to the outside of the model automaticaly, so i had to do that by hand. It is likely that I overlooked a surface or two... That's not a problem, but a feature. Really. After mirroring an object you have to 'apply the rotation'. (Some key combination with a, IIRC. Ctrl-A?) I don't know why this isn't done automatically, but it is braindamage 'by design'. m. ___ Flightgear-devel mailing list Flightgear-devel@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
Re: [Flightgear-devel] DHC-6 progress
On Saturday 10 September 2005 08:32, Melchior FRANZ wrote: Problems: - blender has problems with flipping normals to the outside of the model automaticaly, so i had to do that by hand. It is likely that I overlooked a surface or two... That's not a problem, but a feature. Really. After mirroring an object you have to 'apply the rotation'. (Some key combination with a, IIRC. Ctrl-A?) I don't know why this isn't done automatically, but it is braindamage 'by design'. sorry, meant to say, that the recalculate normals outside-fuction doesn't work very well. It works with simpler models but somehow it kind of overlooked some faces so i had to fix those by hand... cheers Thorben ___ Flightgear-devel mailing list Flightgear-devel@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
Re: [Flightgear-devel] DHC-6 progress
[EMAIL PROTECTED] wrote: Erik: I tried to use your jsbsim FDM frist, but I was too stupid to get that to work... It's hard to believe that. Maybe you're too inexperienced. I'll take a look at it today and send you the required updates. Erik ___ Flightgear-devel mailing list Flightgear-devel@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
Re: [Flightgear-devel] DHC-6 progress
Melchior FRANZ wrote: That's not a problem, but a feature. Really. After mirroring an object you have to 'apply the rotation'. (Some key combination with a, IIRC. Ctrl-A?) I don't know why this isn't done automatically, but it is braindamage 'by design'. It's hard to fix. When you mirror a mesh, the winding order of all the polygons gets reversed, which means their normals change direction. If the mesh is stored in an optimized format (strips, fans, etc...) then it needs to be broken down and re-optimized. Big mess. It's not something that blender can't or shouldn't handle, but it *does* interact in weird ways with the geometry representation. I sympathize. Andy ___ Flightgear-devel mailing list Flightgear-devel@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
Re: [Flightgear-devel] DHC-6 progress
On Saturday 10 September 2005 18:42, Andy Ross wrote: It's hard to fix. When you mirror a mesh, the winding order of all the polygons gets reversed, which means their normals change direction. If the mesh is stored in an optimized format (strips, fans, etc...) then it needs to be broken down and re-optimized. Big mess. It's not something that blender can't or shouldn't handle, but it *does* interact in weird ways with the geometry representation. I sympathize. Isn't that where the flip normals feature comes in handy? I don't remember having any problems when I mirrored meshes in Blender for use in FG but it was a while ago. Paul ___ Flightgear-devel mailing list Flightgear-devel@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
[Flightgear-devel] DHC-6 progress
Hi all. I am making progress with my DHC-6: - added and animated controll surfaces and propellers - added a simple livery (proof of concept) - added a very optimistic FDM (behaves like I think it should) Screenshots: - http://thorben-mit-th.de/files/dhc6-alpha009.jpg - http://thorben-mit-th.de/files/dhc6-alpha010.jpg - http://thorben-mit-th.de/files/dhc6-alpha011.jpg Download (yes, the file is GPL'd even if I forgot to say so inside): - http://thorben-mit-th.de/files/dhc6-0509091.tar.gz Solved Issues: - I now know what messed up my uv-map and how to do it right Problems: - blender has problems with flipping normals to the outside of the model automaticaly, so i had to do that by hand. It is likely that I overlooked a surface or two... - the animations in general and especially the propellers are still slightly broken because I got the centers of rotation wrong but don't know how to get the right ones - I have no idea how to do a proper livery where stuff is in the right places (except perhaps an awful lot of trial and error and guesswork) - shadows are a bit broken (stuff shines through) FDM: I took b1900d's FDM and modified it with a good deal of estimating and guesswork to resemble STOL flight characteristics. (You were right Curt, it was much fun.) However it perhaps behaves a bit too well-tempered. I don't know how DHC-6 reacts in real life, though I found some diagrams about the wing but I don't know how to use the data. (look here: http://gltrs.grc.nasa.gov/reports/2000/CR-2000-209921-VOL1.pdf http://gltrs.grc.nasa.gov/reports/2000/CR-2000-209921-VOL2.pdf ) If you find the gear reacts funny: I tried to make it as tough and bendy as I think it is in real life. Erik: I tried to use your jsbsim FDM frist, but I was too stupid to get that to work... Wanted: - drawings and data, both FDM and cockpit related. (I don't need photos unless they are highly detailed) - good ideas/hints What I will do next: - some more animation, mostly gear related (turning wheels, bouncing, steering) - rough 3d frame of the cockpit - wait for help on liveries. You are all welcome to work on the stuff i already have, I am not afraid of interference with the stuff I do myself... (survival of the fittest stuff:-)) Curt: I don't think that my DHC-6 is ready for CVS yet, not with this ugly livery. cheers, Thorben ___ Flightgear-devel mailing list Flightgear-devel@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
Re: [Flightgear-devel] DHC-6 progress
Hi Thorben, [EMAIL PROTECTED] wrote: Screenshots: [...] These look very promising. The most significant difference to the Twin Otters that I've seen in real life is the lack of floats :-) Cheers, Martin. -- Unix _IS_ user friendly - it's just selective about who its friends are ! -- ___ Flightgear-devel mailing list Flightgear-devel@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
