ComfyUI-DaSiWa-Nodes

DaSiWa RTX Upscaler & Refiner: A high-performance 3-pass processing node.
1. Refine Pass: Runs at source resolution to clean up noise or blur using NVIDIA RTX VFX.
2. Upscale Pass: Scales the image up to 4x using VSR or High Bitrate modes.
Processes frame-by-frame to maintain low VRAM usage for video batches.

Enable NVIDIA RTX Deblur pass to reduce motion or focus blur.

Enable NVIDIA RTX Denoise pass to clean up image grain and noise.

Quality tier for the Denoise pass. Higher tiers use more GPU compute.

Snaps final resolution to a multiple of this value. Use 8 to match RTX VSR; choose 32 only when a downstream video model requires it.

Target total area in millions of pixels (used by Ratio types).

Forced aspect ratio (used by 'Preset Ratio').

Mismatch handling: 'Crop' fills the target area, 'Letterbox' fits inside with black bars.

Target Size Logic:
- Same Size: Keep original dimensions.
- Scale: Multiply resolution by 'scale'.
- Keep Ratio: Match 'megapixels' while keeping original shape.
- Preset Ratio: Match 'megapixels' but force to 'ratio_preset'.
- Manual: Exact pixels.

Multiplier for resolution (used by 'Scale' type). 2.0 = 4x the total pixels.

Upscale Mode:
- VSR: Standard AI upscaling.
- High Bitrate: Optimized for heavily compressed/noisy sources.
- Off: Skip scaling.

ComfyUI Node: DaSiWa RTX Upscaler & Refiner

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Outputs

Extension: ComfyUI-DaSiWa-Nodes

More nodes in ComfyUI-DaSiWa-Nodes

Other DaSiWa/Video nodes

Run ComfyUI workflows without the setup