Uncomfortable's Advice from /r/ArtFundamentals

(Please help) Constructing a perfect 2 point perspective cube without vanishing points or station point

https://www.reddit.com/r/ArtFundamentals/comments/w81rs6/please_help_constructing_a_perfect_2_point/

2022-07-25 22:07

Lems3011Crafts

Hai. I've been drawing art for several years, I've looked up various recourses and searched far and wide over the internet. But there's one art problem I cannot solve and I need as much help as possible.

When drawing in perspective the most common method is to draw everything. Draw and plot out the horizon line, vanishing points and sometimes station point. However most of the time for an illustration these points will fall off the picture plane / paper / canvas.Not ideal for if you're on location drawing something or have no more paper or need a meter stick to get the other vanishing points!

So I've been on a long long long search to find a method of drawing a perfect cube that does not involve finding the station point or vanishing points. Using purely the angles available to use as we develop the drawing.

I'm unsure if a method exists but I figure that it would require at least a little geometry to figure out a way to make this method. I often think about this when considering how comic book artists draw perspective within their panels or when animators can rotate a cube perfectly in perspective.

Most of the time the thing that I would like to draw takes up the majority of the canvas size, meaning all vanishing points and station points are off the canvas completely. One thing I have tried is drawing it step by step with the vanishing points and station point much much smaller on canvas and then trying to blow it up. However if at some point during the drawing process I need to add in perspective lines or add something in a new perspective, it'd require me to shrink everything down or start again from scratch.

I have tried to search for this answer for years... a method without having to guess or estimate.. I am hoping the internet can help me. Please help, and thank you for your time.

Uncomfortable

2022-07-25 23:37

So this subreddit is reserved for those working through the lessons on drawabox.com, so technically you'd be better off asking this in a more general community like /r/learnart or /r/artistlounge, but you're in luck. What you're dealing with here is exactly what we're about.

Drawabox is not a perspective course, but rather it is a spatial reasoning course that tries as much as possible to not deal directly with the far-away things, like vanishing points. Instead, we try to work as much as we can with what we have nearby, although this inevitably reduces the accuracy of the approach - in other words, there's a lot of room for little mistakes to throw off our lines. But, at least for our purposes, that's fine, as perfect perspective is not required in concept art or illustration. Of course, the importance of perfection may be different in your case.

I do want to mention is that the technique is one I'd consider to be, at least within the context of our course, advanced. We introduce it at the very end of the course (at Lesson 7), and so it's not something we take lightly, or that you should go in with any expectation of simplicity.

You'll find an explanation of the approach in this video, although it does build upon understanding the nature of ellipses (which we explain further back in Lesson 1. Also, the approach itself is pulled from Scott Robertson's "How to Draw", although a lot of people find the explanation there to be especially difficult to grasp - though given the complicated nature of the approach, and the fact that we introduce it at the end of our course, I'm not sure ours is gonna be that much easier to grasp.

All the same, I hope it helps.