echo iris
I'm currently attempting to implement deferred rendering in my toy engine. I've run into an issue with implementing my two render pass instances via dynamic rendering functions.
When my geometry pass targets two color attachments, the vkCmdBeginRendering() (which only takes a single color attachment) call in my lighting pass throws an access-reading violation. When my geometry pass targets a single color attachment, the vkCmdBeginRendering() call in my lighting pass does not throw and exception.
In pseudocode, it looks something like this:
vkCmdBeginRendering(cmd, 2 color attachments, depth attachment)
// draw to my g-buffers
vkCmdEndRendering(cmd)
// barriers converting g-buffers from color attachment layout to sampled image layout
vkCmdBeginRendering(cmd, 1 color attachment, no depth attachment) // !! Access-reading violation here when first render pass instance has 2 color attachments
// combine g-buffers into my draw image
vkCmdEndRendering(cmd)
I am completely lost on why the color attachment cound from my first render pass instance would affect my second render pass instance. My instinct is that the 'cmd' object is in a bad state, as when I attempted the above with separate command buffers per render pass instance no exception was raised. I am not sure why 'cmd' would be in a bad state, however.
Any ideas or instincts would be extremely appreciated! Thanks!
stark oxide