The Boot Splash slow in Godot 4 beta12 #71350
Comments
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What happens if you open script tab in editor before opening the game? What happens if the scene open in editor does NOT have particles in it? (Just to rule out rendering both game&editor and particles as being the cause) |
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Try switching to the Compatibility rendering method in the advanced Project Settings. The Vulkan rendering backends are more complex and require more time to start. |
Is this possible to delay showing the window only once Vulkan rendering backends are ready? |
See godotengine/godot-proposals#3145 and godotengine/godot-proposals#1175. |
Ahh, interesting, it make sense. Thanks for the response! |
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One thing I would like to do to combat the slow boot splash is to display the boot splash image using the windowing system instead of using the GPU. As far as I know all windowing libraries let you pass an image (or at least an array of pixels) to display, we could give it the boot splash so that it displays even before the GPU is initialized. This would remove the awkward flicker before the boot splash shows but it won't help with the extra loading time. |
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I don't think the "extra loading time" would be an issue, as it already exists: it shows an undefined empty frame. |
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I launched godot with
the forward+ renderer loads even more shaders:
It's not obvious to me why all these shaders need to be loaded before the boot image is drawn, maybe it's possible to refactor the init process so |
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I did some experimenting with moving the A different approach that worked was to wait with showing the main window until the splash is ready, instead of showing it in the While digging into this I also realized that the "Minimum display time" setting for the boot splash includes time before the splash has been displayed. This means that the speed of the computer affects how long the splash is shown since any time spent before the splash is counted as showing the splash. Perhaps not very noticeable in final builds, but very obvious in debug builds and slower machines. I solved this by taking note of the time elapsed when the boot splash is actually shown and then taking that into account when deciding how long to wait before going from the splash to the game. Changing when the main window is displayed feels like a major change so I thought I would ask about it here before providing a PR. Does this sound like a good approach? If so I can extend my experiment so it covers all platforms and make a PR. |
* Wait with displaying the main window until the splash screen is ready to be displayed to avoid showing the window without the splash (godotengine#71350). * Fix how the "Minimum display time" setting is implemented by taking the time before the splash was first displayed into account.
Workaround for Godot #71350. The Vulkan rendering backends are complex and require a long time to start (about 10 seconds). The resulting graphical enhancements are worth it, but during development I prefer the faster loading times of the Compatibility renderer. godotengine/godot#71350
Workaround for Godot #71350. The Vulkan rendering backends are complex and require a long time to start (about 10 seconds). The resulting graphical enhancements are worth it, but during development I prefer the faster loading times of the Compatibility renderer. godotengine/godot#71350
Workaround for Godot #71350. The Vulkan rendering backends are complex and require a long time to start (about 10 seconds). The resulting graphical enhancements are worth it, but during development I prefer the faster loading times of the Compatibility renderer. godotengine/godot#71350
Workaround for Godot #71350. The Vulkan rendering backends are complex and require a long time to start (about 10 seconds). The resulting graphical enhancements are worth it, but during development I prefer the faster loading times of the Compatibility renderer. godotengine/godot#71350
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Godot version
4.0beta12
System information
Windows 11, Vulkan API 1.3.224 - Vulkan NVIDIA GeForce RTX 3080 Ti
Issue description
The Boot Splash image is very slow on Godot 4.
Here what I mean.
Godot 4:
Godot 3.5.1:
In the 2 projects. I put a Image to show + the pink color for the purpose of demonstration.
In Godot 3.5.1, the image show really fast (the pink color is not event visible) vs Godot 4 beta 12 where we can see the pink color during 0.25sec.
Steps to reproduce
Minimal reproduction project
TestProject.zip
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