subpass support

[jcyuan]

i think this is a very key feature request? because subpass improves the performance a lot, and it's in Vulkan/DX already, although opengl does not have it but it's not a hard task to implement it.
what do you think guys? or is there already an implementation?
thanks~

[bkaradzic]

You should join Discord for these quick type of questions...

[jcyuan]

You should join Discord for these quick type of questions...

i did, and the answer is: not supported.
that's just a very key feature personally i think, that's why i posted it again here.

[jcyuan]

btw, what can post here what can not please?

[pezcode]

because subpass improves the performance a lot

What use cases are you thinking of? Subpasses mostly exist on tiled mobile GPUs, to allow framebuffer fetch without expensive store/load from main memory. On desktop there is little performance benefit to using them.

[jcyuan]

FBF as you said. i mentioned already in the discord.
on desktop even there is no benefit it brings convinence for shader writing still no?

[jcyuan]

this is a crossplatform framework, even with so many platforms........... but obviously what it brings is it's super hard to support a new feature..... more platform more impossiblity....
my app will be crossplatform too, so i have to investigate in detail.
nvm, moved to gfx-rs/wgpu already.
thanks guys.