HUD Zoom to infinite

[vctpil]

Hi,

 

Sorry, I didn't find the search function on this new forum to look for the same problem.

 

I only use the trackIR and when I am approaching the HUD windows, the symbology of the A-10CII and AV-8B maintain the same size (infinite view), but the symbology of the F/A-18C is following the forward-rearward head movement (see attached tracks).

 

That sound not correct to me, so, is it still in work in progress ?

 

Thanks,

Vincent

 

AV-8B HUD zoom.trk

A-10 HUD zoom.trk

FA-18 HUD zoom.trk

[vctpil]

Nobody has the problem ?

[deephack]

That's exactly how a real heads up display works. Symbology retains it's position and size as long as you are within the fov of the projector. It's really cool to look at in real life.

 

EDIT Stupid me didn't read the whole post. F18 of course shouldn't work like that.

[vctpil]

Hi,

 

Is someone can confirm that is still WIP, please ?

 

Thank you,

Vincent

[verana_ss]

Hi,

 

Is someone can confirm that is still WIP, please ?

 

Thank you,

Vincent

 

I think Its a parallax. not size change. As far as I understand even with parallax corrected reflection lens, parallax persists as wide as refection lens size(width height) at whatever object distance.

Thus less parallax at distance and noticeable at closer range.

[vctpil]

Hi,

 

In my pilot knowledge, parallax is when your reading an indication on an instrument on the side, not in front. So, the information may not be correct.

 

But I probably make a terrible mistake with this post, the HUD is effectively focused to infinite. I think that the size of the symbols are too wide.

 

Plus, I cannot get very close to the HUD, which is possible with the Harrier. Any idea how to solve that ?

 

Thanks anyway,

Vincent

[verana_ss]

It doesnt have to be side. up/down count as well.

When you move your head towards HUD, your LOS angle against HUD lens changes slightly which I think is causing a slight move of HUD at closer distance.

 

I played your track on my pc and didnt see a size change. can you post a video on youtube?

[vctpil]

Hi,

 

Sorry, I don't know how to make a video.

 

But here's two screenshots with my head very close to my computer screen and look at the symbology size displayed.

 

What is happening to the Harrier is similar to all other aircrafts, except the F/A-18. So, is the HUD technology of the F/A-18 different ?

 

Thanks.

[dorianR666]

it only appears so, because the hornet doesnt allow you to move your viewpoint as much forward as other planes. even in your screenshots, you can see how much closer your viewpoint is in jf-17, look at the top of the glasses.

 

what you see in my third screenshot is the maximum forward position in hornet achievable with keyboard. nowhere near as close as in jf-17 (and others). FOV stayed the same. in your screenshot, you have decreased FOV but that is not the same as moving your head forward. notice how your screenshot is a subpart of mine, it only appears to be closer to HUD.

[Razor18]

I don't think parallax has anything to do with aparent HUD symbology size change. The reason is HUD projection is to the best of my knowledge is focused AND projected to infinity.

 

Focused to infinity means your eyes doesn't have to adjust / shift focus between the dot of a distant aircraft miles away, and the HUD's green radar box around it, like old eyes need to do when looking up from reading the newspaper to look to something in a distance. This is usually compensated by wearing "reading glass" to read, but no glass for driving for instance. Those old eyes wouldn't need glass to read HUD symbology, because it appears sharp for them, being in the infinite distance, and not in the plane of the HUD glass, 1.5 feet from the old eyes

 

Projected to infinity means the entire HUD symbology always has the same apparent size (width x height) for your eyes, so if you would slide back far enough, the HUD glass FOV would not be big enough to accomodate all the HUD picture, loosing the edges of symbology, and if you would slide forward and bump your forehead to the HUD, you would see the symbology absolutely the same size and the same apparent distance from your eyes, but the HUD glass FOV would be much bigger, so that you couldn't even see the HUD glass edges, like wearing a scuba goggle.

 

It is the same as a red dot sight on a rifle. It is always pointing to the same point in infinity, even if you shift your head around, that's why "no parallax error". If you shift head too much, you won't even see the red dot.

[vctpil]

it only appears so, because the hornet doesnt allow you to move your viewpoint as much forward as other planes. even in your screenshots, you can see how much closer your viewpoint is in jf-17, look at the top of the glasses.

 

what you see in my third screenshot is the maximum forward position in hornet achievable with keyboard. nowhere near as close as in jf-17 (and others). FOV stayed the same. in your screenshot, you have decreased FOV but that is not the same as moving your head forward. notice how your screenshot is a subpart of mine, it only appears to be closer to HUD.

 

Thanks for your screeshoots.

 

Is there a way to modify the viewpoint? Is it still in WIP?

[VIXEN413]

Viewpoint movement VR is much greater then Track IR for sure. So unable to help u there mate....

[Brun]

Is your TrackIR's z-axis for the Hornet definitely set to movement and not zoom?

[Harker]

TrackIR user here. I've tried to reproduce and I can't seem to be able to. If I move my head back and forth, while keeping the FOV (zoom level) constant, the HUD elements remain the same size when compared to the world around me and also remain on the same position (eg size and position of the VV versus a mountain peak). This is correct.

 

Indeed, I can move closer to the HUD in the Harrier or Jeff than in the Hornet, but that's it. The HUD seems to behave the same way for all of them.

 

As for testing between different modules, keep in mind that the default FOV is not the same for every module. Make sure to test with the same FOV (although that also doesn't matter, it just changes the apparent size of everything in your screen).

[Razor18]

[verana_ss]

Hi,

 

Sorry, I don't know how to make a video.

 

But here's two screenshots with my head very close to my computer screen and look at the symbology size displayed.

 

What is happening to the Harrier is similar to all other aircrafts, except the F/A-18. So, is the HUD technology of the F/A-18 different ?

 

Thanks.

 

Ok

 

One thing that has to be cleared out is that if the HUD size(font size and others) is not changed wherever your head is, it is working correctly.

The difference you see in the photo is just head movement limitation difference given for each module.

 

Head movement is unlimited in VR that I do see the exact same image as HUD in your harrier image in DCS F/A-18 module.

 

[verana_ss]

I don't think parallax has anything to do with aparent HUD symbology size change. The reason is HUD projection is to the best of my knowledge is focused AND projected to infinity.

 

Focused to infinity means your eyes doesn't have to adjust / shift focus between the dot of a distant aircraft miles away, and the HUD's green radar box around it, like old eyes need to do when looking up from reading the newspaper to look to something in a distance. This is usually compensated by wearing "reading glass" to read, but no glass for driving for instance. Those old eyes wouldn't need glass to read HUD symbology, because it appears sharp for them, being in the infinite distance, and not in the plane of the HUD glass, 1.5 feet from the old eyes

 

Projected to infinity means the entire HUD symbology always has the same apparent size (width x height) for your eyes, so if you would slide back far enough, the HUD glass FOV would not be big enough to accomodate all the HUD picture, loosing the edges of symbology, and if you would slide forward and bump your forehead to the HUD, you would see the symbology absolutely the same size and the same apparent distance from your eyes, but the HUD glass FOV would be much bigger, so that you couldn't even see the HUD glass edges, like wearing a scuba goggle.

 

It is the same as a red dot sight on a rifle. It is always pointing to the same point in infinity, even if you shift your head around, that's why "no parallax error". If you shift head too much, you won't even see the red dot.

 

I firstly thought that OP was pointing out slight HUD shift noticeable at closer distance (which is correct behavior btw) leading him to believe the HUD size is changing which turned out to be more simply issue.

[Recluse]

I have to say the same thing happens to me periodically. I chalk it up to TRACKIR being weird. Sometimes it returns to "normal" after quitting and restarting the mission or the game. Happens more often to me in the Harrier than the Hornet, but it happens there too and looks just like the OP's screenshots