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Enug
03-16-2015, 08:21 PM
I have an AIO and I have painted with a stylus and AR but never thought of painting with a regular artist's brush so I dug out one of mine from my 'real media' days and it works! It feels as tho you have a real brush in your hand 'cos of course you do.;) I wonder if this would work on a hand held device?

https://www.youtube.com/watch?v=LM24mA5ILKg

Bobbi
03-17-2015, 06:32 AM
This has me intrigued. I do not have a touch screen on the desktop where I do most of my Art Rage. I am assuming that the touch screen will respond to the brush just as it would your finger. I have a small tablet (10") which has Windows 8.1 as the OS and a touch screen. I have Art Rage loaded on a micro sd card. I will see if the touch screen will react to a brush. I know it reacts to a stylus with the small rubber tip, but this could be interesting if it works with a brush. If not, I would love to know what sort of touch screen does react to a brush.

If that video doesn't get more people looking into Art Rage, I don't know what will.

Thanks for sharing that with us.

markw
03-17-2015, 08:10 AM
Hi Bobbi
Sorry I couldn't resist my inner geek! So in short as I understand itů

There are several different types of touch screens;
Capacitive
Optical Imaging
Resistive
Ultrasound or SAW (Surface Acoustic Wave)
Inferred

The type of screen in that video is an Optical Imaging Touch Screen which is why it can work with any object like a real paintbrush.
An OITS will typically use two or more inferred lights shining across the screen coupled with some form of imaging sensor. Just before an object touches the screen it will cast a shadow (caused by the inferred lights) which is detected by the imaging sensor and the screen X, Y coordinates calculated to give the point of contact of the brush.
Because of the power requirements for the lights of this type of touch screen I doubt that any current portable divides use it.
(Note; OITS should not be confused with Inferred Touch Screens which also employ this type of light but work very differently.)

Devises like iPads/Phones use Capacitive Touch Screens which is probably the most common type used in portable devices.
Capacitive screens require a stylus that can conduct electricity much like a finger. Hence the rubber tip on the stylus, which is actually a type of electro conductive rubber.
The screen has a constant charge running across it and when a stylus or finger comes in contact with the screen there will be a small drop in charge and the X, Y coordinates for that drop can be calculated to give the pen/finger position.

Enug
03-17-2015, 01:54 PM
My AIO is a touchscreen computer - I have an el cheapo android device, it doesn't treat the paintbrush as a stylus - I thought that maybe the iPad, Samsung, etc. might. Seems not. :(

Bobbi
03-17-2015, 03:27 PM
Hi Bobbi
Sorry I couldn't resist my inner geek! So in short as I understand itů

There are several different types of touch screens;
Capacitive
Optical Imaging
Resistive
Ultrasound or SAW (Surface Acoustic Wave)
Inferred

The type of screen in that video is an Optical Imaging Touch Screen which is why it can work with any object like a real paintbrush.
An OITS will typically use two or more inferred lights shining across the screen coupled with some form of imaging sensor. Just before an object touches the screen it will cast a shadow (caused by the inferred lights) which is detected by the imaging sensor and the screen X, Y coordinates calculated to give the point of contact of the brush.
Because of the power requirements for the lights of this type of touch screen I doubt that any current portable divides use it.
(Note; OITS should not be confused with Inferred Touch Screens which also employ this type of light but work very differently.)


Devises like iPads/Phones use Capacitive Touch Screens which is probably the most common type used in portable devices.
Capacitive screens require a stylus that can conduct electricity much like a finger. Hence the rubber tip on the stylus, which is actually a type of electro conductive rubber.
The screen has a constant charge running across it and when a stylus or finger comes in contact with the screen there will be a small drop in charge and the X, Y coordinates for that drop can be calculated to give the pen/finger position.

Thanks for the information. I do appreciate your explanation. I didn't know that there were different types of touch screens. I have to say it is fascinating to see what would be possible with the OITS screen. Technology just keeps adding new and innovative devices. I would love to be fifty years younger to get involved with all of this. Thank you again Mark.

Bobbi
03-17-2015, 03:29 PM
My AIO is a touchscreen computer - I have an el cheapo android device, it doesn't treat the paintbrush as a stylus - I thought that maybe the iPad, Samsung, etc. might. Seems not. :(

June,
We will just have to be content with what we have to work with. In any event, it surely beats fingerpainting. :D

Enug
03-17-2015, 07:39 PM
I'm pleased to find that I can use a paintbrush on my screen obviously it is an OTIS. :cool:

banjaxedmdt
03-18-2015, 12:27 AM
I wonder if this would work on a hand held device?

nVidia DirectStylus enabled devices such as the Tegra Note 7 that I have, and it's bigger brother the Shield allow the use of real brushes and pencils on the screen for input. It works in the Android version of Artrage, and I've also tested it in Artflow and Infinite Painter. It isn't perfect, and I'd probably stick with the regular stylus, but it does work.

Victor Osaka
03-18-2015, 12:55 PM
For the iPad (Capacitive touch screen I gather) I use a Compose brush by Nomad. It is my favorite tool.

85850

Enug
03-18-2015, 03:51 PM
I also use a brush type stylus - Leonardo - but I was interested that a real paintbrush could be used on a touchscreen computer monitor. That was why I wondered if real paintbrushes could be used on other screens - and the answer seems to be generally 'no'. Tho banjaxedmdt has a device that can use a paintbrush.

Personally speaking, I think using a brush that is longer than a stylus could be useful to me in watercolour painting or where I want a looser style - I feel I could probably be freer in my hand movements. That's just me.:D

hildee
03-20-2015, 11:39 AM
http://www.instructables.com/id/DIY-Capacitive-Stylus/?ALLSTEPS

Also, years ago I found a method online where you glue a thin strip of foil to the length of the brush. It was for capacitive screens (I have an LG phone). I couldn't get it to work but I just might try again. Can't find the link again but the above one is interesting, lots of different DIY ways to have a go.

Enug
03-20-2015, 02:36 PM
Yes, I also experimented when I first got my android device, wrapping foil around the end of a pencil - it works. But the conversation here is about real media paintbrushes which work on an touchscreen AIO but seemingly not on most other devices. Even a folded piece of paper can be used to paint with AR on my touchscreen monitor.

kenmo
03-21-2015, 08:06 AM
Wow...that is cool....Thanks for sharing....

D Akey
03-21-2015, 08:50 AM
This may be the one from Oriane Lima aka Lima.

http://forums.artrage.com/showthread.php?42829-DIY-iPad-(UPDATE)&highlight=brush


http://www.instructables.com/id/DIY-Capacitive-Stylus/?ALLSTEPS

Also, years ago I found a method online where you glue a thin strip of foil to the length of the brush. It was for capacitive screens (I have an LG phone). I couldn't get it to work but I just might try again. Can't find the link again but the above one is interesting, lots of different DIY ways to have a go.