Process Gaussian PLY Enhance

The Load nodes in this pack read from a dropdown of known folders. That works great for splats you already have and breaks down the moment the splat is generated as part of the same workflow - you can't pick a file in a dropdown that doesn't exist when you build the graph. Process Gaussian PLY Enhance is the answer to that. It takes its ply_path over the wire from an upstream node instead of from a file picker.

The canonical upstream is SHARP Predict and the other image→3D nodes that emit a Gaussian splat path at run time. The tooltip names SHARP specifically, but anything that hands you a .ply path as a string plugs in the same way. That's what makes this node feel like part of a real 3D pipeline rather than a file browser: it's the seam between "generate a splat" and "look at it."

What it does with that path

Once the path arrives, the mechanics are the Load nodes' logic minus the folder scan:

• Validates the resolved path exists and ends in .ply (it errors loudly - and specifically - if not).
• override_camera (default enabled) - rebuilds the camera from your fov_degrees and auto_resolution, replacing whatever the upstream splat came with. Flip it to disabled to pass through input_extrinsics and input_intrinsics from upstream instead (they're ignored entirely while override is on).
• auto_resolution / target_scale / image_width / image_height - the same resolution-for-intrinsics controls as the Load nodes, with the same rule: auto resolution wins unless you turn it off.
• enable_opacity_filter + opacity_threshold (default 0.1) - sigmoid the opacity, drop everything below the threshold, and write a cleaned _opacity{threshold}.ply next to the source. Handy for generated splats that come out noisy with floating background gaussians before you save or screenshot anything.

Outputs

Same trio as the whole pack: ply_path (STRING - the original or the filtered file), extrinsics (4×4), and intrinsics (3×3). Wire ply_path into Preview Gaussian Enhance and your generated splat shows up in the viewer with no manual file wrangling.

Install & gotchas

Same pack, same install as its siblings - clone it or search "comfyui-PlyPreview" in ComfyUI Manager:

cd ComfyUI/custom_nodes
git clone https://github.com/XuanYu-github/comfyui-PlyPreview.git

Restart ComfyUI. Dependencies are numpy and plyfile, nothing compiled. This is the pack's quiet superpower and it applies here too: no CUDA, no C++ rasterizer, the rendering happens in your browser.

The failure modes are mostly about the path contract. If upstream hands you a relative path or a path to a file that hasn't been written yet, the node raises "PLY file not found" and names the exact resolved path - check the console for the full message rather than assuming it's broken. And if the preview that follows comes up blank, the same /view-endpoint rule applies: the viewer serves from ComfyUI's output folder, so make sure upstream is writing there.

One take-away: of the three path-producing nodes in this pack, this is the one I'd actually reach for in a living workflow. The dropdowns are for the stuff you already own; this one's for the stuff the graph just made - which, honestly, is the more interesting case.