imgui interface flickering

[alpine sapphire]

i followed Sascha Willems's vulkan examples. Triangle and Imgui are painted in the same command buffer. and validation layer doesn't report any error.

[covert aspen]

It looks like you are not drawing on the right frame

[elder jewel]

it looks like imgui is only drawn on 1 of the swapchain images

[delicate ermine]

I remember there was a "//todo update the image gui render at a slower rate" or something like that, in Sascha Willems sample, maybe your render pass is in load OP clear instead of load OP load

[ashen lance]

that is most def either not drawing to every swapchain image or sync issues

also please avoid double posting

[alpine sapphire]

you are right, but triangle is correct, and they are painted in the same renderPass and command buffer,i dont konw why is the reason

[alpine sapphire]

i used render doc, it shown the image[0] of swapchain was empty

[elder jewel]

what happens if you also skip the triangle on 1 of the swapchain images?

would the triangle disappear at the same frames as the imgui?

[alpine sapphire]

I changed the renderPass load op. OP_ Load works, but it result in other problem and maybe i have to change too much code

[delicate ermine]

not even the triangle ?

[alpine sapphire]

only imgui has this problem

[covert aspen]

Could be a sync issue

Never used imgui so I don't know if it manages the sync itself

[merry wedge]

it does not

[stable tulip]

unrelated but what is this IDE?