topic Re: SKETCH RENDERING in Visualization

SKETCH RENDERING - MORE

Anonymous — Thu, 11 May 2023 10:42:40 GMT

Is there a document showing examples of all the combinations for the sketch rendering engine?

Re: SKETCH RENDERING

Djordje — Sat, 21 Feb 2004 18:07:22 GMT

Jeff wrote:
Is there a document showing examples of all the combinations for the sketch rendering engine?

No. Immortality is still beyond the human reach.

It would do to go through the predefined styles, and start customization from there.

SKETCH RENDERING - MORE

Dwight — Sat, 21 Feb 2004 21:59:24 GMT

The attached spreadsheet view shows the numerical possibilities for the Sketch Rendering Engine. To illustrate them would be a decade's work.

At ACUW, I'll have several useful examples of the Sketch Renderer as well as an explanatory letter from the developer of the plug-in.

Re: SKETCH RENDERING

David Pacifico — Sun, 22 Feb 2004 17:20:00 GMT

This is my prefered Settings, for what it's worth.
Skyliner and Pen and Ink.
Sometimes I will turn down some of the Settings and Overshoot, but I like this becuase of gives a good balance of looks and speed. By having no Sun Shadows and No Hatching it produces pretty fast. Also by having those two options uncheck you don't have to worry about the bottom two panels in the dialog box.

Re: SKETCH RENDERING

Dwight — Sun, 22 Feb 2004 21:09:53 GMT

That is nice. Were those the default settings?
Just for fun, I attach a failure. The fuzzy blobs are 3D figures - too many lines I guess.

Re: SKETCH RENDERING

Karl Ottenstein — Mon, 23 Feb 2004 00:44:52 GMT

David wrote:
This is my prefered Settings, for what it's worth.
Skyliner and Pen and Ink.

Very nice, David! Out of curiousity, have you tried taking a sketch output such as that into Piranesi for some painting? (Or layering it in Photoshop.) I find the overshots and lines from certain Sketch Engine settings such as this more appealing than the sketchy looks that can be obtained in Piranesi or Photoshop themselves.

Karl

Re: SKETCH RENDERING - MORE

Jefferson — Mon, 23 Feb 2004 02:29:01 GMT

Karl, David, All,

The layering of sketch and "photoshoped" renderings in photoshop has long been one of the big attractions of ver 8/8.1 for me. (I told Dwight about this a while back) I should have my hands on my own copy of 8.1 in a couple of weeks and can't wait. The look of hand work in renderings is SO much more ascthetically appealing to me and most of my clients. It also has the power of suggestion without giving them something so realistic that the focus is on the details instead of the concept.

Is this sort of what you mean Karl?

Re: SKETCH RENDERING - MORE

Dwight — Mon, 23 Feb 2004 03:08:25 GMT

Since the hardness of rendered images is repellent to many, and the Sketch Rendering Engine seems difficult to control and is slow to operate, I have been a long-time supporter of the idea of merging/overlaying a combination of solid [linework] and rendered images in Photoshop.

At my Sketch Render seminar at ACUE last year, it wasn't merely good enough to diss the Sketch Renderer [as I will be doing again at ACUW] but it was necessary to make several examples of using a slight bit of filter distortion in Photoshop to create full-color illustrations that jiggle enough to remove the icky rendering overtone - combined with the benefit of instant Photoshop previews.

Jeff's approach is quick and beautiful - Anyone with Photoshop should investigate this option. I feel the reward for a few minutes effort will yield better images than ArchiCAD's Sketch Render Tool.

Re: SKETCH RENDERING - MORE

Dave Jochum — Mon, 23 Feb 2004 04:22:44 GMT

Dwight wrote:
At my Sketch Render seminar at ACUE last year, it wasn't merely good enough to diss the Sketch Renderer [as I will be doing again at ACUW]...

I'm looking forward to your seminar at ACUW. Over the next few weeks, I'll be trying my hand for the first time at rendering with ArtLantis and Piranesi (while I read your book). I'd love to see more renderings posted here with discussions of technique.

Re: SKETCH RENDERING - MORE

Karl Ottenstein — Mon, 23 Feb 2004 05:29:17 GMT

Jefferson wrote:
Is this sort of what you mean Karl?

Yup. Nice image. I've done similar ones in Photoshop using the Sketch engine lines as you've done. As I said, I prefer the overshot lines - most visible in your deck steps (but I know from my own images that they are visible everywhere at full size) - to the kinds of lines that one can generate in Photoshop alone, even though I know my friend Dwight is fond of that technique. (To each our own 😉 )

But, since I know that David is going to give the Piranesi workshop at ACUWest, I was more curious of the kinds of things that might be possible with a rendered restore RGB chanel and the sketch engine output imported into the RBG chanel ... thus allowing selective painting of the Sketch as well as selective exposure of the underlying render. The difference that I see between this and doing the same thing in Photoshop is that Piranesi is surface and material aware, making painting through quick without masking ... and because it is geometry aware, things like half-tone patterns will take advantage of the angle of planes to the viewer, something just too tedious to attempt on very many planes in Photoshop. I suppose I could have tried something in the time it took to type this and here I was trying to be good and get back to work!

In the end, I would resort back to Photoshop for compositing still, I suppose, since Piranesi doesn't have layers to allow tweaking and adjusting a history of manipulations.

Karl

Re: SKETCH RENDERING - MORE

Jefferson — Mon, 23 Feb 2004 14:33:04 GMT

Thanks Dwight. Coming from you that is high priase and I'll take it! Perhaps next year I'll make it to ACUW and pick up your perspective on this approach.

As you said for me the key is this type of thing is fast, simple and in the NPR style. I first saw this style on the old talk board, an example from Paul Grieger.

Re: SKETCH RENDERING - MORE

Rick Thompson — Mon, 23 Feb 2004 14:37:12 GMT

Jefferson wrote:
Karl, David, All,

The look of hand work in renderings is SO much more ascthetically appealing to me and most of my clients. It also has the power of suggestion without giving them something so realistic that the focus is on the details instead of the concept.

Is this sort of what you mean Karl?

I get much better feedback on the hand look, I make a sketch rendering, open it in Canvas (similar to photoshop), erase for bushes and trees>>> print, hand draw a few bushes, window reflections, etc.>>> scan back in and colorize. The whole process is under 1/2 hour for a quick and easy hand look rendering. Sometimes I think "we" forget you can combine the computer and the hand, and it can be faster and some think nicer.

Re: SKETCH RENDERING - MORE

Anonymous — Mon, 23 Feb 2004 18:08:21 GMT

I have also found hand drawn renderings to be more effective, particularly in schematic phase. The attached file shows a drawing my partner and I produced for a project back in 1996.

The process:
1. Modeled in ArchiCAD (version 5.0 I think)
2. Plotted to HPGL file
3. Used Squiggle to convert HPGL to hand drawn look
4. Printed at 8 1/2 X 11
5. White out, pencil and ink applied by hand
6. Scanned back into Photoshop to unify the appearance of the line work
7. Printed at 17"x22" on vellum for the final coloring.

The whole process took about 1.5 hours. We have continued to do our presentations this way and naturally the process has gotten even more efficient but the time has been so embedded in the project work that is is difficult to extract. The above example was unusual as a complete and discrete process including the modeling.

Re: SKETCH RENDERING - MORE

David Pacifico — Mon, 23 Feb 2004 18:50:55 GMT

Karl Wrote: have you tried taking a sketch output such as that into Piranesi for some painting? (Or layering it in Photoshop.) I find the overshots and lines from certain Sketch Engine settings such as this more appealing

Yes you can do that an example can be found in this thread:
http://www.graphisoft.com/community/archicad-talk/viewtopic.php?p=5618#5618
http://www.graphisoft.com/community/archicad-talk/download.php?id=336

Also remeber you can use the ArchiCAD rendering engine first, then use that rendering as the background for your Sketch Rendering like the one below. Then you could save that out to Piranesi for more. (All without Photoshop)

Re: SKETCH RENDERING - MORE

David Pacifico — Mon, 23 Feb 2004 20:12:42 GMT

Ok, why stop? I turned on the Site and took it into Piranesi for some people and trees.
Directed the shadows of the cutouts to go toward the building.
Poured in a sky.
Burned in the cutouts (after saving them, just in case I want to go back)
Poured White over everything
Outlined every edge (Piranesi knows where every edge is)
Restored back the color where I wanted. (I left the ArchiCAD on the buiding unrestored)

Re: SKETCH RENDERING - MORE

David Pacifico — Mon, 23 Feb 2004 21:25:24 GMT

One more thing, while Piranesi doesn't have Layers really except for cutouts. One can use one rendering as a texture to paint over another one to get the same effect, with the added plus of being able lock to surfaces and materials. (I need to stop now.)

Re: SKETCH RENDERING - MORE

Karl Ottenstein — Tue, 24 Feb 2004 03:40:35 GMT

David wrote:
Also remember you can use the ArchiCAD rendering engine first, then use that rendering as the background for your Sketch Rendering like the one below.

Very clever trip, David. Thanks for that and for all of your experiments!

Karl

Re: SKETCH RENDERING - MORE

Karl Ottenstein — Tue, 24 Feb 2004 03:43:33 GMT

Rick / Matthew - Very nice. Thanks!

Karl

Re: SKETCH RENDERING - MORE

Anonymous — Wed, 25 Feb 2004 05:15:24 GMT

Sorry but I am jumping threads here. I also replied to the 'Piranesi' thread and have an image over there as well.

Attached is the updated todays image of the same job (the damn client has removed the top level this morning) so I have redone the AC file, rerendered it, and snuck it back into piranesi then following Dwights advice I took it into photoshop and artistic/dry brush distorted a copy of the image that I layered over the original image at 50% opacity. Quite a nice result. Not too computery at all!

The client was astounded that the change they requested at 10am they had new colored plans and a watercolor style perspective by 12noon. All for a meeting at 1pm. (its been a busy morning! and I still need to update the budget by tommorrow morning)

Lets hope the client doesn't take off another level tommorrow!

Re: SKETCH RENDERING - MORE

Anonymous — Sat, 28 Feb 2004 21:26:13 GMT

This is a short synopsis of some styles..[/img]