ComfyUI released a set of NVIDIA VFX Nodes on 13 October 2026, putting NVIDIA’s RTX video effects inside the graph as native nodes. The models ship with the nodes, run locally on an RTX GPU, and are aimed squarely at people who have to hand footage to the next stage of a VFX pipeline rather than post it straight to a feed.
There are three of them, and they are designed to be chained in a specific order.
RTX Video Super Resolution
The first node upscales images and video frames up to 4×, either by multiplier or to target dimensions up to 8192 px. It carries 19 modes, which is a lot more granularity than “make it bigger” normally gets.
The modes split by what the source actually is. Standard modes handle typical compressed footage. High-bitrate modes are for clean or lossless sources, and skip the artefact suppression that would otherwise soften material that has no artefacts to suppress. Streaming modes are tuned for broadcast and webcam feeds. Denoise and deblur modes clean up noise, compression damage or softness and leave the resolution alone — the same node, used as a restoration pass rather than an enlargement.
There is also a plain bicubic mode for when no AI processing is wanted at all, which is a telling inclusion in a release like this.
Most modes run from LOW to ULTRA, trading speed against detail, and an optional 10-bit encoding preserves more precision on the way out. Frame count and frame rate pass through untouched.
RTX Video Frame Generation
The second node synthesises frames between adjacent pairs, for frame-rate conversion or slow motion. It works two ways.
Frame-rate multiplier mode fills every gap evenly, from 2× to 16×. To hold the original duration, the output is encoded at the source frame rate times the multiplier. Specific-timestep mode instead inserts a single frame per pair at any chosen point between the two, which is what downstream workflows with custom timing need.
Quality runs LOW, MEDIUM, HIGH. Shot changes are detected automatically, with a manual option to mark a cut that is already known — the detail that separates a tool built for cut footage from one built for single clips. The 10-bit option is here too.
The HDR node is the one to look at
The third node converts SDR images to BT.2020 HDR data, with a choice of HLG or PQ output. Contrast, saturation, middle grey and peak luminance from 400 to 2000 nits are all adjustable, and a debanding pass is on by default.
That is a genuine display-pipeline control surface, and it is unusual company for a generative image tool. Most AI video workflows treat colour as something that happens to the pixels on the way to a browser preview: sRGB in, sRGB out, no transfer function named anywhere. Naming the container (BT.2020), letting you pick the transfer function (HLG for broadcast, PQ for mastered content), and exposing peak luminance as a number you set rather than a constant someone else chose — that is how colour is handled in a facility, not in a notebook.
The debanding default matters for the same reason. Stretching eight-bit SDR material into a high-dynamic-range container is exactly the operation that turns invisible quantisation steps in a gradient into visible stripes across a sky.
The order is not arbitrary
ComfyUI gives the chain as Super Resolution → Frame Generation → HDR, and each step explains the next. Upscale first, while the frame count is still low and there is less work to do. Interpolate second, on frames that already carry the detail you want the new ones to inherit. Convert to HDR last, because it is the output-stage decision and redoing it is cheap.
Alongside the nodes, the release improves EXR support and colour management — the two things that decide whether output survives being handed to a compositor at all. EXR is the format that carries linear, high-dynamic-range data without clipping it; a workflow that can only emit 8-bit PNG cannot participate in a grading pipeline no matter how good the upscale is.
Written by Rob and Alexis Rolland, the release is a reminder of where the practical edge of generative video currently sits. Not in the model that makes the clip, but in the twenty unglamorous steps between that clip and something a facility will accept.
Sources
- Nvidia VFX Nodes for Video Upscaling, Frame Generation and SDR-to-HDR, for VFX Professionals — ComfyUI Blog
- ComfyUI NVIDIA VFX Nodes: AI Video Upscaling, SDR-to-HDR & EXR Support — ComfyUI on YouTube
- ComfyUI documentation
- Rec. ITU-R BT.2100 — HDR television, including the HLG and PQ transfer functions