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I am using Coreldraw x5. Been using it for years but only for 2d signage and flat art. I need to make a 3D shape of an above ground tank and I cant figure out how. I'm not an artist by ANY stretch of the imagination so I didnt bother to include any of my attempts.
The shape below is a side view of the tank. the tank is circular. If it were a simple cylinder I could draw that shape in 3D, but the radiused upper edge and partially domed top perplex me.
I need to show it from a slightly elevated angle.

I am looking for either instruction or for someone to just create it and send it so I can learn from the example, but I need this to be a vector drawing so it can be scaled to size, and shaded so that it looks somewhat realistic. Not photorealistic, just kind of  "ray-traced" .

Am I asking too much?

asked 11/17/2011 11:29

Salad-Dodger's gravatar image

Salad-Dodger ♦♦


20 Answers:
If someone has not offered assistance by Sunday night I'll draw this up for you.
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answered

sigurarm's gravatar image

sigurarm

I appreciate that a great deal. I hope that I can learn how you did it so I can create other shapes and render them the same way. I was able to create something similar using Google SketchUp today with relative ease, but it uses too few polygons so it was pretty "chunky".
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answered 2011-11-18 at 14:16:35

Salad-Dodger's gravatar image

Salad-Dodger

Sigurarm:

Did you forget me?  I would still like to know how best to do this.
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answered 2011-11-18 at 15:12:50

Salad-Dodger's gravatar image

Salad-Dodger

Hi there. Sorry for the delay. Forgot to let you know that I had not forgotten you, but was swamped with work. In few minutes I'll post again.
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answered 2011-11-22 at 11:08:41

sigurarm's gravatar image

sigurarm

Ok. Back.

When I drew this shape in Illustrator and then took half of it and revolved it I started to wonder what the original question was. I uploaded a screenshot but of course you can get the actual drawing.

It's my understanding that Corel can open Illustrator art which is saved in eps. But what do you need most:

Tank rendered in vector?
How to draw the shape with the pentool (in Illustrator)

I want to help you as well as I can.
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answered 2011-11-22 at 11:58:21

sigurarm's gravatar image

sigurarm

You are certainly on the right track !

Yes Corel can open AI files. I have AI (from CS4) as well but I am not nearly as familiar with it as I am with CorelDraw. Creating an realistic looking 3D image has always eluded me so I am hoping that this will be something that I can build on. There are plenty of "Glass Button" tutorials that work using the transparency tool,  but this shape adds complexity that I can't seem to duplicate.

As for what I mean by Vector... I need to be able to manipulate this original in Corel as a vector image (as opposed to a bitmap) so I can stretch or squeeze this rendered shape without any loss of quality.  The final object will be an exported bitmap, but its size and shape will change depending on how I use it.  

Is the highlight you added rendered (or ray traced) or hand drawn?
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answered 2011-11-22 at 12:18:37

Salad-Dodger's gravatar image

Salad-Dodger

Illustrator has an Effect as they call it that does basic 3D. The lighting is done in there along with the revolving. Because it's an effect I can only let you have it Expanded, turned into a regular vector drawing.
However, if you download Adobe Illustrator 30 day trial you can open the file no. 2, open up the Appearance panel, click on the 3d hyperlink and play with the original shape as you like. It's easy and some YouTube tutorials about this.

I'll upload here two files, one with original shape in case you could use it. The second one has half the shape with Illustrator 3d effect applied if you care to check out Illustrator. Third file has the tank Expanded (and position is frozen) in with two different color steps. 25 steps blending and 140 steps blending.

I'll save as CS4 format .ai but change the extension to .jpg
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answered 2011-11-22 at 13:30:26

sigurarm's gravatar image

sigurarm


I have AI at home on my Mac, I will try these there.

When these are imported into CorelDraw, They get created as groups of objects so the image is broken into 2425 separate objects.
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answered 2011-11-22 at 13:54:12

Salad-Dodger's gravatar image

Salad-Dodger

Great. Just remember that you should not go Effect>3D to edit because then you would apply another effect on the object that your computer might have hard time calculating. Rather: Window>Appearance  and use the 3d hyperlink to open and edit.

Good luck. It's fun.
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answered 2011-11-22 at 14:43:58

sigurarm's gravatar image

sigurarm

Thanks for your help thus far. I'll be in touch. I gotta draw pipes and all sorts fo cylindrical objects to go along with this. Otta be fun !
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answered 2011-11-22 at 14:48:21

Salad-Dodger's gravatar image

Salad-Dodger

Ok. If you make shapes that have to be rendered together you will have to group them first so they move together.

The limitation of this effect is that you cannot "dive" things into each other like in real 3d applications. If you continue into the 3d world, consider Cinema 4D which according to my son is excellent step if you like "vector work feeling"
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answered 2011-11-22 at 15:00:45

sigurarm's gravatar image

sigurarm

Yikes,  they are pretty proud of that software. $$$
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answered 2011-11-22 at 15:10:26

Salad-Dodger's gravatar image

Salad-Dodger

Could your son take a whack at this with Cinema4d so I can see the difference?
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answered 2011-11-22 at 15:17:22

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Salad-Dodger

It's expensive yes. I am afraid I can't ask him at this time, sorry. He is working day and nights.
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answered 2011-11-22 at 15:20:10

sigurarm's gravatar image

sigurarm

I'm DL'ing the demo now, I'll try that at some point soon. Thanks again, I'll be back with the results
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answered 2011-11-22 at 15:26:06

Salad-Dodger's gravatar image

Salad-Dodger

Opened up fine on my mac.
Interesting... you drew the right half of the shape and then applied some magic...  Now I have to see what magic you applied. Nothing like that in Draw...

The color palette in AI is way off. Yellow looks green on my screen, cant seem to come up with a tan.  Different problem I know
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answered 2011-11-22 at 15:29:00

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Salad-Dodger

The magic is like this:
Take a half shape like this and go: Effect>3D>Revolve and Illustrator revolves the shape around the left edge (default). Half a circle becomes a globe but if you revolve around the right edge even with some offset distance you get a doughnut.
In the box that opens you can turn the shape around, add perspective, lights and even map some vectors to the 3d shape.

I briefly checked Corels site about Draw yesterday and found out that it has some nice features. I think all the same that Illustrator is the way to go.
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answered 2011-11-23 at 08:49:16

sigurarm's gravatar image

sigurarm

OK... that sounds way too easy...  I have used Corel for at least 10 years, since V2.1, and never found a tool in it that would do this. I will have some fun with it over the holiday.

I do wish I could make the colors look right though. Also wish I could make the render ..."shiny-er" . I suppose that is why there are apps like Blender and Cinema4D.

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answered 2011-11-23 at 11:04:18

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Salad-Dodger

I have many more questions to work out with this 3D option, but you have given me a tool I would never have looked at.  Thanks for the help.
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answered 2011-11-23 at 11:59:51

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Salad-Dodger

My pleasure. Thanks for the points.
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answered 2011-11-28 at 07:54:09

sigurarm's gravatar image

sigurarm

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Asked: 11/17/2011 11:29

Seen: 459 times

Last updated: 11/27/2011 11:54