Graffiti 3d [complete]

[Jscottk]

I submitted an entry to the leap motion 3d game jam last night (just in the nick of time), and I'd love some feedback.

http://itch.io/jam/leapmotion3djam/rate/14902

This is a straightforward application with one purpose: enable you to doodle in 3d space with any shape, color, or brushead size you want. I created this over the course of one week so it has some rough edges, but the major bugs have been worked out.

It turned out to be more fun than I had imagined it would be.

Here a couple of videos showing me quickly doodling something for reddit https://www.youtube.com/watch?v=W5c7BxnL7Tc&index=4&list=PLWNRSaxlXBmgnNFfAY6Fumk7-BA1n-nEi

[EbilCat]

Hi Jscottk,

I'll give Graffiti 3d a spin when i get back home tonight. Looks good !

[EbilCat]

Hey, just tried Graffiti 3d. Good stuff for one week's worth of development. Is there an undo function or some method to wipe the slate clean to start over ? Would be cool too if there were indicators to show my currently selected color and line width.

[Jscottk]

Thanks for trying it out!

Those are all issues I intend to do something about, but for now I have mapped the escape key to exiting the app so it's quick to quit and restart. Also, I've been dedicating a small corner of the vr space to "testing" the brush before using it on a 3d painting, and that seems to work quite well.

In the future I'll include a "clear canvas" hotkey and some indicator on the hands to show what the output shape/color/size is.

[Jscottk]

I uploaded a new build last night to address some issues that previously existed with the program. The changes were:

• Added colored marker to palm of hands to indicate current color being deposited.

• Added support for left-hand users through the "config.txt" file

• Added hotkey to clear the canvas (spacebar)

• Fixed an error caused by drawing while cycling through shapes (the deposited material no longer disappears)

• Reduced the likelihood of the program failing to recognize a thumb pinch

• Reduced border width on shader to attempt to fix an error that sometimes occurs when the oculus rift starting position is calibrated off.

That's about it! As always, I'm interested in hearing any issues/suggestions you might have.

Edit:
One more update:

• Added visual feedback of brush head size by scaling the token in the user's palm proportionally to the brush.

• Fixed issues with clearing the canvas using spacebar; the brush properties no longer reset and the drawer no longer crashes in some circumstances.

[Jscottk]

I'll probably never be able to call this "done". There are just so many possibilities! Here's another update:

• Added interaction volume box wireframe in front of the camera to make it easier for users to tell where the leap can track their hands with high confidence. This can be hidden by pressing "b" or changing the "InteractionBox" line in config.txt

• Removed some latency while drawing.

• Added "end caps" to all lines so backfaces of tubes are no longer visible and black unwanted artifacts are reduced.

edit:

• Added support for impossible colors! Now users can specify a color for each eye within the colors.txt file (see README.txt)

• Also, updated leap motion assets to fix latency issue associated with the old assets.

[Jscottk]

Another update to fix some issues and share features that I've been having fun with:

• Added passthrough camera/"augmented reality" access by pressing "p" key. Make sure "allow images" is selected in your leap motion driver before trying this.

• Added ability to export meshes by pressing "e" key.

• Fixed issues with undoing strokes. Now a "stroke" is considered to be one continuous drawn line.

• Made a variety of performance adjustments (such as making undo/export run on their own threads).

[Jscottk]

New update: http://youtu.be/K1uejFfymBI

• Converted left hand controls to Hovercast menu (https://github.com/aestheticinteractive/Hovercast-VR-Menu)

• Added in-game color and size controls, so sizes.txt and colors.txt are no longer needed.

• Moved commonly used keyboard shortcuts (undo, clear canvas, export mesh, augmented mode) to the left hand menu.

• Converted "digital" thumb drawing trigger to "analog" control (the distance between the thumb and hand determines line width instead of simply triggers drawing). This allows for variable width painbrush-like strokes.

[AlexColgan]

Wow, this looks super slick! The menu controls definitely add to the experience

[zachkinstner]

Agreed

This is the first Hovercast integration that I've used -- nice work! Two quick thoughts:

• The "checkbox" item type would be perfect for the "Augmented Mode" menu item, since it turns on/off.
• The "radio" item type would be perfect for the "Shape" menu. I assume you can only select one of these at a time, so the radio item would be only be checked for the active shape.

You can see more about menu types at the Hovercast project page: https://github.com/aestheticinteractive/Hovercast-VR-Menu/wiki/Types-of-Menu-Items. If you have questions, I'm happy to discuss it here or via email.

[Jscottk]

Thanks guys - I'm really enjoying the Hovercast menu and I'm grateful that Zach made it available just as I was looking for an alternative menu system. I was originally planning to use the new arm HUD widget, but Hovercast was just too cool to pass up.

I appreciate the tips Zach! I absolutely agree - those UI input types are probably more appropriate than just generic buttons for those options. I'll play around with those and probably change them in the next update.

[zachkinstner]

The Graffiti 3D project is the first to appear on the new Hovercast Showcase page. Thanks @Jscottk, and nice work! Here's a link to the showcase entry:

https://github.com/aestheticinteractive/Hovercast-VR-Menu/wiki/Hovercast-Showcase#graffiti-3d

[Jscottk]

I appreciate it Zach! The listing looks great. Im excited to see what other projects turn up that utilize Hovercast.

[Jscottk]

I made a handful of improvements today including:

• Deactivated drawing while interacting with the Hovercast menu system (to avoid accidental drawing).

• Converted menu items to appropriate input types in the Hovercast menu system; shape selectors are now radio buttons, and the augmented reality button is now a checkmark.

• Changed "Lightness" to "Brightness" on the HSB color selector.

[Jscottk]

Updated 09/14/15

• Added new materials: neon glow material, diffuse clay material, and a generic metal material (set to white for silver, yellow for gold, and orange for copper).

• Added object importing. Users can now import custom objects (up to 65,000 vertices) to draw on.

• Added photosperes. Users can now load in custom 360 degree panoramic images as environments to draw within.

• Added bloom effects. Extremely shiny materials will now sometimes appear to glow slightly when reflecting bright light.

• Fixed some rendering issues; material lighting should look better.

• Added ability to turn off lights (fun with neon material).

• Added ReadMe UI for Leap Motion users (mouse/gamepad users can still access the ReadMe in the main menu).

• Updated to Unity 5.2f3, Leap Motion Core Assets 2.3.1, and Oculus 0.6.0.2 (compatible with Oculus runtime 0.7+)

• Temporarily removed passthrough mode; waiting on Leap Motion SDK update before that will work again (this is a priority).

• Removed fine control of stroke width with thumb distance; too many people reported issues using this feature. Change the stroke size in order to modify the drawing width.

Edit:

Mini update

09/16/2015

• Fixed issue with importing objects; users should now be able to import custom meshes properly.

• Added ability to control mouse cursor with left analog stick on gamepad.

• Added cursor recentering when recentering camera (F2, F12, or R key)

• Fixed issue with saturation slider on hovercast menu.

• Fixed issue with neon material glow color not properly changing when material was changed.