Hemispherical Dome Projector

[mweaver]

[BHawthorne]

Looks cool! I'm definitely a fan of Paul Bourke's iDome research. I'm also really interested in seeing how the security mirror works.

If you have any feature request to make warp calibration easier let me know.

-Brad

[mweaver]

I have a 1st surface mirror in a crate for when I am comfortable with the setup. I am using this 30 dollar mirror for prototyping. I will photograph the image generated by the security mirror soon. As expected, it generates an okay image, albeit with slight ghosting on high contrast images. The company that provided the first surface mirror suggested that I never even so much as breathe on it, as it can not be cleaned.

[BHawthorne]

I've pondered picking up one of the regular security mirrors for experimentation. Is the ghosting tolerable for experimental purposes?

[mweaver]

Ghosting is very tolerable. It shows itself most in high contrast situations, like black text on white background. NTHUSIM is not function on the 2d desktop, even when configured to do so. It has worked in a full screen 3d application. Here is the error log. Any suggestions?



Mon Oct 17 12:05:31 2016 : [3668] [HLAPI] Failed to load blend map C:\Users\USERNAME\AppData\Local\Nthusim\default\blendmap_1.png

Mon Oct 17 12:05:31 2016 : [3668] [BE] Could not enable 2D correction : desktop composition is off

Mon Oct 17 12:05:31 2016 : [3668] [BE] Could not enable 2D correction : desktop composition is off

Mon Oct 17 12:05:34 2016 : [3668] [BE] Could not enable 2D correction : desktop composition is off

Mon Oct 17 12:05:36 2016 : [2828] DirectX 11 32bit requested by C:\Program Files (x86)\Mozilla Firefox\firefox.exe

Mon Oct 17 12:05:55 2016 : [3860] [BE] Could not enable 2D correction : desktop composition is off

[BHawthorne]

When it says desktop composition is off that means you're not using an Aero themed desktop for hardware acceleration. Which Windows version are you using? Don't use a basic theme for the desktop, use a hardware accelerated one.

In "Control Panel > All Control Panel Items > System" select the "Advanced" tab.
Under "Performance" select the "Settings..." button.
Select "Adjust for best appearance" to ensure all hardware accelerated portions of desktop are enabled.
Then make sure you're using a hardware accelerated Windows theme.

That should fix the desktop composition issue.

A side note, the blendmap error message isn't related and won't affect Nthusim use.

[mweaver]

[BHawthorne]

I'll ask the brisbane office to add in the polar grid option for 4.2.

[BHawthorne]

For clarification you're wanting what Paul Bourke refers to as a "truncated bottom" with a 16:9 aspect ratio? Making 100% sure the warp grid I'm thinking of is correct.

I drew this in Adobe Illustrator based on a few examples from Paul Bourke reference pictures. I'll see if I can have open a picture for calibration background as an option added to Nthusim again. That way you can just load this picture up and calibrate with it. We used to have the option around 2009 when we were known as Sol7 Home Edition.

http://imageshack.com/a/img922/3058/et5IyQ.gif

[mweaver]