Firstly, I've built for the Quest and checked the Unity profiler - everything seems good.
The weird thing is, when I move my head from side to side I don't see any framerate drops in the profiler but I see a noticeable stutter/lag in the headset. When my head is still or even just rotating, everything looks great, there's no stutter at all.
This stutter only occurs when I'm close to my UI and moving my head. When my head is static or rotating, it's all good. If I move back from the UI, there's no stutter either.
I don't think that it's an issue with too complex geometry or materials, as surely this would show up as a framerate drop in the profiler. I'm guessing that the camera movement is causing some kind of frame mismatch which (for some weird reason) isn't showing up in the profiler.
Does anybody have any ideas as to what might be causing this?
Well, I found the issue after narrowing the issue down to a specific set of GameObjects. It seems that the issue was being caused by a custom 'Dissolve' shader I was using. After setting the shaders back to 'standard' the problem went away! Weird...
This happens if your game FPS is lower than the device refresh rate.
For example if the headset is displaying 90 frames per second and your game is only able to render 70 frames per second, the headset needs to reuse a rendered frame every few frames.
When the game doesn't provide a rendered frame in time the device will just take the last rendered "image" and adjust it to the changed headset position and rotation. If it's a rotation change only, you will not notice, because the headset can easily just rotate the last image. But if it's also movement, the device can't simulate the difference of movement of close objects versus far objects on the image, so if you are moving an object close to a camera (e.g. your hand), it will stay at the same position for two frames (every few frames), which will make it look like it's stuttering.
Related
I'm currently just trying to learn to use the animator within Unity, I'm very in-exp at animation and don't understand it even in the editor as I focus on programming/scripting.
I have an animation and the states for the animations as-well as the conditions all working perfectly however the animation check for the next state is way to slow. I've tried changing the speed of the actual state but it speeds the animation up and makes it look like my character is walking insanely fast.
I've tried messing around with the frames, making them over a longer time period and making the speed of the state faster however it seems to counter act each other, when I make it longer frames the pace of the animation is slow and then when I make the speed of the state go quicker it just makes the frames tick faster making the animation faster.
What I believe is happening is that the check for the next state of animation is happening once the full animation has been played. However what I need is the check to be happening constantly (as if frame by frame of the unity game not the animation).
Any advice would be great, I've tried using youtube to solve this before coming here however most people are creating a platformer game where as I'm trying to aim for a top down 2d, all directional character movement instead of the linear x axis character movement., and outside libraries.
I deeply apologise for my inability to find a suitable source. I have literally just came across an article online that came across a simple solution.
here:https://answers.unity.com/questions/221601/slow-animation-response.html
basically if you can't be bothered to click the link and you are having the same problem,
find exit-time by clicking the transition and then in the inspector and untick it.
Sorry.
Video of issue in action: https://streamable.com/pkrog
The video linked above does a better job of explaining the issue than I could, but I'll give it a shot.
I have my walking/idle animations setup in a 2D Freeform Cartesian Blend Tree, which is working perfectly, aside from when I'm moving between transitions. So idle looks great, until I hold 'W' to move forward, then for the half second it's blending between idle and walking, my model gets very twitchy, then after it's done blending, it's smooth again. Same thing happens every time the Animator has to transition between different animations.
Any idea what could be causing this?
It might have to do with the fact that you update your camera in fixedUpdate and your animations are updated at the game normal update rate. So the different rate at which both your animations and your movement/camera/body updates makes it jittery.
I have created a game in unity, using an orthographic camera. Occlusion culling is enabled. Rendering path is forward.
As a player you see a part of the level. You go to the right to progress through the level. The level is quite long.
The problem is that the longer the level is. The more laggy it becomes. In order to reduce the lag, I have tried disabling a part of the level this worked. According to the profiler, the scripts are not causing the problem, but the rendering of the objects is. I have optimized all code. None of the gameobjects (besides the player) is using the update/fixedupdate function.
I thought the camera automatically disables rendering gameobjects outside the camera view? (It is what I heard). According to what I am experiencing right now, it seems I am missing something.
When the camera is obscured, the AR system loses track of the position of gameobjects and player should recalibrate the surface to make the game objects appear again.
Players can accidentally obscure the camera anytime, so this is not desirable.
Is there a way to prevent this from happening, so that the gameobjects reappear in their original positions after the camera is un-obscured?
Here's a video describing the issue
Thanks!
-Jake
I've never had this behavior, my guess is you need a larger space with more track-able distinguishable objects.
It's not got enough to to realise that it's looking back at the same place.
I'm using Unity3D 5.3 version. I'm working on a 2D "Endless running" game. It's working normally on PC. But when I compile it to my phone, all of my gameobjects are shaking when they are moving. Gameobjects are in a respawn loop. I'm increasing my Camera's transform position x. So when my camera is in action, all of the other objects look like they are shaking a lot and my game is working slowly on my phone as a result. I tried to play my game at Samsung, on discovery phones. It's working normally on some of them. But even on some Samsung devices it's still shaking. So i don't understand what the problem is. Can you help me with this?
One thing you can do is start optimising, if you have a game that is either finished or close to it. If you open the profiler, click "Deep Profile" and then run it in the editor on your PC, you'll get a very detailed breakdown of what is using the most resources within your game. Generally it's something like draw calls or the physics engine doing unnecessary work.
Another thing that might help is to use Time.deltaTime, if you aren't already. If the script that increases the transform doesn't multiply the increase by Time.deltaTime, then you're moving your camera by an amount per frame rather than per second, which means that if you have any framerate drops for any reason, the camera will move a smaller distance and that could be throwing out some of your other calculations. Using Time.deltaTime won't improve your framerate, but it will make your game framerate independant, which is very important.