Viewsonic XG270 with 'PureXP" MBR [pre-tuned by Blur Busters!]

Ask about motion blur reduction in gaming monitors. Includes ULMB (Ultra Low Motion Blur), NVIDIA LightBoost, ASUS ELMB, BenQ/Zowie DyAc, Turbo240, ToastyX Strobelight, etc.
zibra
Posts: 2
Joined: 18 Mar 2022, 18:12

Re: Viewsonic XG270 with 'PureXP" MBR [pre-tuned by Blur Busters!]

Post by zibra » 26 Apr 2022, 08:57

Reverae wrote:
31 Mar 2022, 14:48
Download the custom utility. Someone in YT posted this "I use a custom setting with a pulse width of 19 (which gives me about 100 nits of brightness). I think my pulse phase is at something like 82 , overdrive at 5, and vertical total of 4500. I get ZERO crosstalk at 60Hz and it looks absolutely amazing. "
Thank you

SEA_mukilteo
Posts: 3
Joined: 18 Apr 2022, 16:11

Re: Viewsonic XG270 with 'PureXP" MBR [pre-tuned by Blur Busters!]

Post by SEA_mukilteo » 05 May 2022, 12:32

Chief Blur Buster wrote:
19 Apr 2022, 23:24
SEA_mukilteo wrote:
18 Apr 2022, 16:23
Can I expect no ghosting 3D stereo image with quadro graphic card / stereo 3 pin extension connector/active IR shutter glass and this viewsonic XG270?
Personally I'd consider the ViewSonic XG2431 for even better zero-crosstalk results (using 120Hz with the VT2250 trick).

Make sure the 3D glasses are correct polarization (vertical polarization versus horizontal polarization). IPS is polarized 90 degrees differently from TN screens, so shutter glasses for TN screens won't necessarily work unless you rotate your monitor by 90 degrees to portrait.
Hello,
I had chance to test ViewSonic XG2431 with active IR shutter glasses(XPAN 105-IR-X1 / for general 3D TV).
The test environment are like followings:
- Prepared side by side green/blue image @120Hz(sView)
- Quadro RTX 5000 with VESA stereo 3 pin extension connector
- Set PureXP as "Ultra" in ViewSonic XG2431

Observation
- No blur image on each left/right lens of IR shutter glass
- No polarized issue, it was same as TN screens

Question
Do you know why no polarized issue on ViewSonic XG2431?

Thanks,
Attachments
PureXP set up
PureXP set up
ViewSonic_XG2431.jpg (3.61 MiB) Viewed 357 times
No polarized issue
No polarized issue
ViewSonic_XG2431_IR_shutterglasses.jpg (2.63 MiB) Viewed 357 times
Side by side (Blue/Green)
Side by side (Blue/Green)
test-image-LBlue-RGreen.jpg (73.02 KiB) Viewed 357 times

User avatar
Chief Blur Buster
Site Admin
Posts: 10171
Joined: 05 Dec 2013, 15:44
Location: Toronto / Hamilton, Ontario, Canada
Contact:

Re: Viewsonic XG270 with 'PureXP" MBR [pre-tuned by Blur Busters!]

Post by Chief Blur Buster » 05 May 2022, 15:02

SEA_mukilteo wrote:
05 May 2022, 12:32
Chief Blur Buster wrote:
19 Apr 2022, 23:24
SEA_mukilteo wrote:
18 Apr 2022, 16:23
Can I expect no ghosting 3D stereo image with quadro graphic card / stereo 3 pin extension connector/active IR shutter glass and this viewsonic XG270?
Personally I'd consider the ViewSonic XG2431 for even better zero-crosstalk results (using 120Hz with the VT2250 trick).

Make sure the 3D glasses are correct polarization (vertical polarization versus horizontal polarization). IPS is polarized 90 degrees differently from TN screens, so shutter glasses for TN screens won't necessarily work unless you rotate your monitor by 90 degrees to portrait.
Hello,
I had chance to test ViewSonic XG2431 with active IR shutter glasses(XPAN 105-IR-X1 / for general 3D TV).
The test environment are like followings:
- Prepared side by side green/blue image @120Hz(sView)
- Quadro RTX 5000 with VESA stereo 3 pin extension connector
- Set PureXP as "Ultra" in ViewSonic XG2431

Observation
- No blur image on each left/right lens of IR shutter glass
- No polarized issue, it was same as TN screens

Question
Do you know why no polarized issue on ViewSonic XG2431?
This is because XG2431 polarization direction is 90-degrees different from most TN screens. That makes it compatible with different shutter glasses, like repurposed DLP shutter glasses.

- Shutter glasses uses LCD shutters which don't work well with wrong-polarized light.
- DLP emits unpolarized light (compatible with all shutter glasses)
- TN emits polarized light (compatible only with certain shutter glasses)
- IPS emits polarized light 90 degrees different from TN (compatible with DIFFERENT shutter glasses)

So shutter glasses must be compatible with the LCD's polarization.

You can also rotate a screen between portrait/landscape to fix polarization compatibility issues, since TN and IPS are polarized differently. IPS polarization is apparently more compatible with DLP-glasses polarization, because LCD inside shutter glasses don't work well with wrong-polarized light.

You found one of the best kept secrets: Today XG2431 is one of the best tiny 24" 3DTV-compatibles ever released -- near perfect zero crosstalk with the 120Hz VT2250 trick in ToastyX -- then re-calibrated with ViewSonic Strobe Utility to hide the room-temperature-sensitive part of crosstalk (temperature of summer/winter can worsen 3D glasses crosstalk).

I found that XG2431 PureXP is compatible with most DLP-Link glasses, with a "DLP-Link emulator" that has a shutter phase adjustment. And then using 3rd party 3D players that uses sequential-frame.

Voila. Perfect 3D from XG2431 that is superior to most 3DTVs and even better than NVIDIA 3D Vision!

It's very hard to setup, but I've been thinking of creating an open-source adjustable Arduino DLP-Link emulator box. That can turn most strobed LCDs into 3DTVs. It requires adjustable shutter phase, to compensate for refresh-delay difference between LCD and DLP, but other than that, it works perfect to use DLP-Link glasses with many strobed LCDs.

I imagine it'd work great with VorpX (enables 3D in video games), to turn XG2431 into a 3D Vision clone, usable with any generic DLP-Link glasses with compatible polarization.

Actually, I'll post an open source prize pot for this.

Bounty prize offer: $200 USD paid to first forum member who can package a working open source VorpX + DLP-Link solution for ViewSonic XG2431

Requirements:
- DLP-Link glasses (cheap at $10 each)
- DLP-Link emulator (simple arduino box, I recommend Teensy 4.0 since it supports 0.125 microsecond USB 8000Hz for accurate sync)
- ViewSonic XG2431 monitor
- Viewsonic Strobe Utility

This probably won't need any changes to VorpX, however, if any is required (to sync between the DLP-Link emulator arduino over a USB cable), that code also needs to be contributed as open source to the VorpX team as a possible VorpX plug-in.

Bonus: Adjustable shutter-open-length per eye, and adjustable shutter-open-phase (relative to VSYNC signalling over USB cable to DLP-Link emulator box from Windows D3DKMTGetScanline() to monitor VBlank events). That should make it compatible with almost all strobed monitors, assuming compatible polarization.
Head of Blur Busters - BlurBusters.com | TestUFO.com | Follow @BlurBusters on Twitter
To support Blur Busters - see Multiple Lists of Best Gaming Monitors
Forum Rules wrote:  1. Rule #1: Be Nice. This is published forum rule #1. Even To Newbies & People You Disagree With!
  2. Please report rule violations If you see a post that violates forum rules, then report the post.
  3. ALWAYS respect indie testers here. See how indies are bootstrapping Blur Busters research!

pacman
Posts: 4
Joined: 01 Nov 2020, 13:42

Re: Viewsonic XG270 with 'PureXP" MBR [pre-tuned by Blur Busters!]

Post by pacman » 12 May 2022, 16:58

How is the strobe crosstalk of the XG270 at 75 Hz? Is there any pursuit-camera photo/video?

Post Reply