swift orbit
Question:
I don't know why I get an image API error in the void Update() part of the Gist code.
What I've researched:
I investigated using ChatGPT and Gemini and found that there is a high possibility that there is a problem with the timing of the fence or the way the command buffer is used.
What I want to know:
The cause and solution.
Github Gist: https://gist.github.com/Shigurechan/93851d3c1ec16f665b742de092af9a3f
placid hamlet
please stop asking AI for help, they are never correct and are worst than useless
brazen moss
vk::Semaphore signalSemaphores[] = { renderFinishedSemaphoreList[currentFrame] };
I don't know what error you're getting exactly, but if it is what I think it is then that line is your problem.
Frames in flight are not the same thing as swapchain images.
swift orbit
Thank you, that's amazing, I'll try not to use the AI.
brazen moss
You need a render-finished semaphore per swapchain image, not per frame in flight. (Your image-ready semaphore should be per-FiF.)
placid hamlet
```cpp
vk::Semaphore signalSemaphores[] = { renderFinishedSemaphoreList[currentF...
that's one problem
all of the validation messages are due to this line
https://gist.github.com/Shigurechan/93851d3c1ec16f665b742de092af9a3f#file-core-cpp-L468
brazen moss
Yeah, thus the caveat: if the error is what I think it is.
placid hamlet
@swift orbit spend some time reading the messages and see if you can figure it out
there are 2 things wrong on that line
brazen moss
Hah, I missed the validation screenshot. Thought it was part of the link preview for the gist. 🤦♂️
swift orbit
Thank you everyone for your comments.
Solved.
Changed to result = device.acquireNextImageKHR(swapChain,UINT64_MAX,imageAvailableSemaphoreList[currentFrame],VK_NULL_HANDLE,&imageIndex);
placid hamlet
do you understand why?