Accessing a GPU passthrough VM with SPICE or VNC

[apara]

From: https://forum.proxmox.com/threads/kvm-3d-acceleration.25722/#post-128857

it's not yet available in proxmox. we need to add support for virtio-gpu and other 3d stuff. (and I think that only recent linux guest support it, not yet windows guests)

I'm really interested in accessing a gpu passthrough VM with SPICE or VNC (Proxmox Console through web interface). Is it planned? When will be available in proxmox?

A use case: Sometimes OpenGL/Direct X is mandatory for specific applications. I am talking about using the card to compute 3D graphics inside a Virtual Machine and making it accessible remotely. Viewing it appropriatelly through the network latency is another story.