Assignment 6 & 7: Cilinders again

[yoitisi]

Enrigo: I’m starting where I left, post 10 in this thread. Actually , while you mention the axis stuff gets confusing for you I think this looks quite alright. The cube is missing the rest of the cylinders though, making it a bit less useful for this assignment as you’ll see it gets even more confusing when you start to add the others as well. For the shading –since you do it with pencil- you can drop the extra line I add when using marker, as it is merely there to convey the idea of a gradients. With a pencil you can just make it a true gradient, something markers don’t really allow you to do.

D-Holme: The non-scribbly ones indeed lack shape in some of these, but I noted you get better at it further down (I assume they’re in linear order ) It’s basically a matter of practice, after a while they should come more naturally. For the first exercise, the last one is best although the back of the horizontal square is too far back because your diagonals don’t cross in the middle. The cylinders look okay (nice to see you found where you made mistakes and are correcting yourself). However, quartering the cylinder on its side seems to give you some trouble. Suddenly you have problem 2 in my previous post, you use the vertical as Major axis for the ellips and subsequently use it to divide the ellips with it. The cups look quite good, but when seeing these and the ones from the rest I realized this part didn’t work within the exercise. I’ll get back to that later.

Asmodie: Couple of things happening here. In the first part of the exercise you need to be a bit more neat in drawing straight lines, as the horizontal ones are a bit wobbly and not really horizontal. This seems to occur in a couple of the other ones as well. You might want to check against the sides of your paper if your lines are still going vertical and horizontal. The cylinder on its side looks okay, keep in mind that the ellipse at the back should be wider than up front. The cube plus cylinder misses the other 5, and the one that you did add doesn’t follow the axis as they should: it seems you used the diagonals of the side of the cube to draw the ellipse. The same happens with the drawing below it, which causes you to quarter the cylinder with the real vertical and horizontal lines. Check these two cylinders against the first one you made, top right. The quartering of the standing cylinder is good, just take care with your verticals again . All in all, nothing terrible but you might want to redo one or two of these just to get the feeling right.

Arttorney: Overall this looks good, thought the cube with cylinders has problem 3 and sort of problem 2 as I described above. Also, for the quartering of the cylinder on its side you didn’t use the tangent line to the ellipse, instead you seemed to have picked a random direction to find the horizontal plane of the quarter.

More to follow soon...

[yoitisi]

...and there's the rest. Need to sleep now

Enrigo: Frustrating though it might be, I think you get the main points here. Not much to say, except that the cube has some issues, mainly caused by the cube you started out with I think. The top cylinder suffers from problem no. 1 above, and the front one (left) has some issues similar to no. 2, but other than that I think it looks quite good.

Unsharpened: The cube with the six cylinders on it looks okay. You mention some issues, but I think you guessed them right where you weren’t certain what guidelines to use. Only the top cylinder has problem no. 1. Rest looks pretty good too.

Hamtaro69: Lots of practices again, I like that. The first part seemed to work okay, except for the issue you already mentioned. It might help to measure along you pen to check if you really divided the square in half. As for the head turning, I got a friend who really twists and turns on his seat while drawing Just take care, it might twist the way you see your own drawing as well. For the cylinders, you might want to bring some variety in the width of your ellipses, just to see what it does to your drawing. The dividing in quarters for the standing cylinder looks okay (except for the second one, where it seems to be a bit more than a quarter), but I miss the same one on its side. The cube seems to have given you some trouble I see, for multiple reason I think. Firstly, you try to fit it inside the second square in the side of the cube instead of using the whole side. The second square is only there to help you find the points on the diagonal that are on the ellipse. Secondly, and that is something you fix in the later ones, is that you missed the axis of the ellipses.

Enrigo: I’m not really sure what is going on in the first drawing. Am I looking at it upside down? It ain’t a quarter, but I’m not really sure how you came up with the result there. The cup looks good, the perspective is more or less okay. Only thing is, the bottom ellipse should be wider than the top one, right now it rather flat instead.

Pomegranate: Looks alright there, just take care with the ellipses at the back or bottom of the cylinders, they should be wider instead of flatter than the front or top ellipses. Dividing the cylinders works okay too, only the last too you took the front view and just expanded them backwards with some perspective lines. That way you get a cylinder that is cut at an angle much like the side view I showed at problem no. 2 above. It makes the dividing part a whole lot easier too, though I bet you it isn’t a quarter atm. Check the front cylinders on your cube drawing and try to divide a cylinder like that in four parts. The cup looks good, though there are some issues with roundings and stuff that we’ll look into later on.

That’s it for now, still waiting on Legato. There’s some other people missing too, I’ll put up a list again later on.

[Legato]

i hate taking pictures of this stuff, but now that im out of school i've lost access to their wide format scanners - i'll try to get a better system up, as it is, i've done my best with photoshop's lens correction and mad leveling

[asmodie]

Thanx for the crit. I draw too irregularly. I have a lot on my plate. Hoppfully my workload will limitet in the future, I start a new assignment tomorrow. My goal is to train more frequently.

[arttorney]

Thanks for all this work. You are right that, for the laying down cylinder, I picked "a tangent" somewhat randomly (using the definition "A line is tangent to a plane curve at a given point if both the line and the curve pass through the point with the same direction.")

I can see that you had a specific tangent in mind. I will go back through the lesson to see what it is I missed, and if I still can't figure it out I will let you know. It very likely led to a lot of the problems with the six cylinders on a cube drawing since I spent a lot of effort trying to use the correct square forming line segments each time.

[yoitisi]

Arttorney: Hmm yeah the idea is that once you've drawn the ellips (of the cilinder on its side), all of the directions of perspective are actually set. You have to take the tangent line to the ellipse on the point where the vertical crosses it. I might make an example sketch of that specific issue, although I think I did say something similar in the original assignment.

Asmodie: That'd be cool more practice is always a good thing.

Legato: The drawings are good enough to comment on that's most important The studies look okay, the first one took you a couple of tries to get right but I think you got the important part of that construction alright. A couple of the cilinders on the second sheet have the problem that the ellipse at the rear is flatter than the one in front instead of the other way around. This has also something to do with the angly which you chose for the central axis. You take quite a wide angle to the horizon which means you look at the cilinder almost from the front (thus the ellipse becomse more of a circle). You might want to reread the whole 'point of view' notes I put down. For the cube-exercise, that one looks quite good except for the ellipses that on the ends of the cilinders. The ones on the sidesufaces of the cube are good, but at the other ends you seem to forget to draw in the axis and just guess your ellipses, which causes them to be slightly off. For the last sheet, I think you're aware that those aren't exactly quarters right Still, you seem to grasp the main idea there. One more thing, you might want to drop those heavy outlines with marker. They tend to distract the attention from the actual object, although they are a way to hide imperfections in the outline. Later on we'll go into some tricks to do this better, but for these studies drop them for now.

I'm working on the next assignment, it should be up somewhere this weekend.

[arttorney]

All right. I can see what you were saying and where I went wrong. You've drawn examples right onto the photos of the pipes. I'll make some notes on my physical drawn pages so I won't forget about the axis stuff. Thanks!