godlikepanos
commented
4 years ago Hello and thanks for looking into AnKi.
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I don't think I've seen this square block issue you are referring to. It would be useful if I could see a video of it (or maybe a screenshot). Maybe that will give me some ideas.
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Haven't seen this line issue as well. Maybe a screenshot will give me some ideas.
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This is a "known issue". It's the global illumination probes getting updated. I want to fix that at some point.
If you have the time and provide me with some videos and/or screenshots I could take a look further and hopefully unblock you.
Thanks.
aabbtree77
Thank you for your great work, your engine stands out in the open source space as you have a volumetric lighting, the Vulkan backend, 2M lines of 3rd party crapola bundled so well, and you also dissect the rendered frame in your blog, I sure wish you continue well improving this fine code.
However, I have a few minor annoyances, and frankly I am not sure if this my old GTX760 card, or something with an engine. When I run sponza and simple_scene, I get a slightly jerky rendering when rotating a view. It's like some small square block of the screen is being delayed for a split second, sometimes it's the whole line of these blocks, albeit quite narrow, so the effect is rather mild. And this is mostly visible when rotating around z axis that runs vertically, when using the left and right arrow keys. The more sudden rotation, the stronger the discontinuity. The two other rotations run smoother, esp. the rotation with up and down arrow keys, that one is almost as it should be, almost. This takes place in the simple_scene as well, so it's probably not related to the scene's complexity and the 2GB limit of my GPU.
Also in sponza there is one narrow line between two different textures that gets blinking if you come close and look into it from a right angle. So it must be some continuous redrawing with different colors of overlapping textures. This is one is a very minor issue.
Finally, when sponza starts, it does not get lit instantly, but the left side becomes proper after a second or so. This is not a speed of light as it should be :). And when one walks close to the walls they look dark, but upon a slight turn towards the walls they become brighter, this is a bit unphysical, albeit smooth. It's akin to a gradual revealing.
I suspect it might be very hard to fix those things since you do not have my GPU to reproduce the bug which may not even be such a very big bug, esp. if things run smoothly in your case with newer cards, but if you have some suggestions where I should look into the code and what tools to use for GPU debugging on Ubuntu, I would greatly appreciate it. I mostly want to learn how the game engines/Vulkan work and help afterwards hopefully. The most tempting "least resistance" option for me is to head towards UE4, but I like your project a lot too.