Spwith Pup

[Terrencejones]

Originally Posted by FOKKERJ

Hello Terry,

I don't care what anyone else says, I like it.... I'm just not sure about the square wheels!
I'll have to research this matter more in full depth.

Seriously keep up the great progress.

Cheers, FOKKERJ

Thanks Jay,
I'm looking forward to painting it.

BTW I got the idea of square wheels from an Arch Whitehouse book

Cheers Terry

[Blackclaw]

This is a very instructional thread. Thanks for sharing it everyone and keep up the good work, Terry.

[Russell Smith]

Originally Posted by Terrencejones

Hi Al,
APM stands for artist perspective modeling, it's used by a number of artist including Russel Smith. The model in it's original form is accurate, it's my rendering of it that is out in some places. I just need to double check and let other people have a look before committing to canvas.

I don't use APM. I never have. I'm not sure where that misconception got started. APM is a computer program for establishing perspective which was created by Joe DeMarco. I use the older, more traditional manual method called Geometric Projection, which I learned from Joe's site.

Russ

[Terrencejones]

My apologies Russ, not sure where I got that from Had a go with Geometric Projection but couldn't understand it.

Terry

[Russell Smith]

No problem, Terry. I've heard it said elsewhere, and I just try to clear up that misconception whenever I can.

Russ

[Terrencejones]

Had a word with Joe De Marco about the perspective issues mentioned earlier and the drawing. Though there are a few issues with the drawing, the APM model has perfect perspective.The model I used was tested out with Chocks method on a very long! piece of tracing paper, it proved to be accurate. The only issue with it is the centre of vision (red cross) which should have been placed more towards the middle of the aircraft and not left at the front, this may account for the drawing appearing a little off skew.
This is another drawing of the same Pup from another angle with the centre of vision on the pilot. There may also be issues with this drawing but as in the earlier one that will be down to me. APM does not draw the aircraft for you, it provides an accurate guide (as long as your measurements are accurate) of aircraft in any chosen angle with perfect perspective. Because it keeps you very much in the loop drawing errors can occur, but as they say, practice makes perfect.
aviart aviation art perspective

[IMG][/IMG]

Cheers Terry

[Chock]

Very nice indeed, nothing wrong with that at all, looks excellent.

Al

[Russell Smith]

Originally Posted by Terrencejones

This is another drawing of the same Pup from another angle with the centre of vision on the pilot. There may also be issues with this drawing but as in the earlier one that will be down to me. APM does not draw the aircraft for you, it provides an accurate guide (as long as your measurements are accurate) of aircraft in any chosen angle with perfect perspective. Because it keeps you very much in the loop drawing errors can occur, but as they say, practice makes perfect.

The late RG Smith once said: "If a drawing is technically correct but it looks wrong, then it IS wrong".

That being said, you've already recognized that there are some issues with this one. The biggest thing that jumps out at me is the lack of a consistent vanishing point on the horizontal plane. All of these lines, being parallel on the horizontal plane, should merge into a single point (I know that you already know this). Take a look at what they're doing, though. Looks like your leading edges on the main wings are OK, but the lines of the Horz. Stabilizer are doing their own thing. They seem to actually DIVERGE as they recede from the viewer.

[Chock]

Whilst what Russell says is absolutely true, and I certainly noticed that as well, I think it's not so bad in this case. It's very true about sometimes having to draw things 'wrong' to make them look right, and I think that one, if not exactly falling into that category, is not so glaring that it screams at you. I have to keep in mind that arty farty types such as me, who notice that sort of thing, are often too picky on such matters. If I was hoping to sell such a picture, I'd not let something like that pass, but for drawings that are mainly for personal enjoyment, and of course also a learning process, then it is very good, because WW1 craft are apt to throw up a lot of confusing perspective.

Al

[Terrencejones]

I claim pilot error

This is the model and as you can see the horizontal stabalizer is correct, unlke my drawing. It proves the point I was making earlier that it wont be the APM at fault. I thought the h. stab. was a little too high so I dropped it a little and neglected to check it out properly. Although it doesn't look too bad its worth putting right.
I appreciate the help guys. Let me know If there is anything else you spot.
[IMG][/IMG]

Cheers Terry