Forum Discussion
Dark Smear (not just black)
I have a unity game where if I have dark colors on lighter colors, dark blue on light green, I see the dark object smear into the light object when I turn my head, sort of like the shadows are dragging behind.
This doesn't seem like the black smear problem, but it is very similar..
Does this just mean im in high persistence mode or something?
Im using the default OVR stuff from the older unity 4.x integration in Unity 5 (not the latest with built in support)
Other default things are happening too.. I accidentally mashed the wrong keys and got that wired oculus red grid thing in my game.. thought I had a virus from some unity store asset.. lol.... how do I prevent that from happening.
This doesn't seem like the black smear problem, but it is very similar..
Does this just mean im in high persistence mode or something?
Im using the default OVR stuff from the older unity 4.x integration in Unity 5 (not the latest with built in support)
Other default things are happening too.. I accidentally mashed the wrong keys and got that wired oculus red grid thing in my game.. thought I had a virus from some unity store asset.. lol.... how do I prevent that from happening.
7 Replies
Replies have been turned off for this discussion
- This is a limitation of the screens used, and is normal. You just have to avoid using highly contrasting colors.
- ok.. I can work with that or reduce contrast with some other techniques..
do want to confirm.. looks like this is "normal" yes?
http://youtu.be/jV1T7JqDRn4 - Yes. That's what it looks like.
- Thanks for the fast response by the way. Saved me some panic...
Is this "improved" in the future versions of the system? because I see it on everything, just in varying degrees of annoyance.. - Having the exact same issues. So there is no way to avoid this? I don't have any comparable issues with the Vive. So why is this happening?
- The problem is specifically caused by using pure (or almost pure) saturated or absent colors (e.g. full on/off R, G, B ) next to a contrasting color. The SDK internally does overdrive where it pushes the colors over/under their requested values to eliminate the ghosting you're seeing in your sample. Unfortunately you cannot overdrive pure blacks or whites. My recommendation would be to programmatically avoid extremely high/low R, G, B values or make sure the neighboring colors are less contrasty (i.e. use gradients). If you're willing to sacrifice overall contrast and not worry about this, sticking to the "HDMI limited" range of 16-235 out of 255 would solve this problem. Vive might be "solving" this by preventing (via the SteamVR SDK) the display from using showing blacks. We didn't want be so heavy handed with our SDK.
- It seems the best way would be to generally raise the gamma (to counter
the dark image) and to limit all colors between 16 and 235 for the whole game.
Is there any easy way to do this in unity?
