Load Images (Batch)

The built-in Load Image opens one file at a time, by hand. Load Images (Batch) is the node for when you have a folder full of textures and a pipeline that should chew through all of them - and its EXR support is the differentiator, because standard ComfyUI loaders don't touch EXR/HDR files at all.

It's the batch loader in this pack's image branch, the sibling of Load DDS Images (Batch) but for regular formats: PNG, JPG, WebP, TIFF, TGA, and EXR. Point it at a directory, filter with a glob pattern, and out come image/mask/filename lists.

How it works

First run does a full directory scan with pattern filtering; the pack caches the scan so repeat runs on the same folder are instant (auto-invalidated when contents change). Then files are loaded in batches defined by two inputs:

• batch_size - -1 (default) loads everything at once. A positive value loads that many files per pass so you can process thousands of images without blowing up RAM.
• batch_index - which batch you're on; connect an external iterator to step automatically, or nudge it manually.

pattern is glob syntax: *_a.png grabs only albedo files, *_a.png;*_n.png grabs albedo and normal maps, ? matches a single character, and semicolons separate multiple patterns.

The optional exr_tone_map matters for HDR work: for EXR files it applies Reinhard tone mapping so values land in display range; leave it off and raw HDR values are preserved (clamped to 0–1).

Inputs and outputs

Required: directory, pattern (* default), include_subfolders, batch_index, batch_size, alpha_bleed. Optional: blur_radius, invert_mask, exr_tone_map.

Outputs (all lists): image, mask, filename, path.

Install

cd ComfyUI/custom_nodes
git clone https://github.com/lilquail/ComfyUI-Leputen-Utils

Restart ComfyUI, find it under Leputen-Utils → Image. Unlike the DDS branch, this one has no Windows-only dependency - EXR loading included.

Troubleshooting

• Patterns are case-sensitive on Linux/macOS but case-insensitive on Windows - a *.PNG filter behaves differently across platforms; keep patterns lowercase.
• HDR images look blown out - that's exr_tone_map off (raw values). Turn it on if you just want to look at them; leave it off if you're processing HDR values in-engine.
• Slow first scan - expected; the README quotes ~2s for 13,000 files, then instant cache hits.
• Memory with huge folders - batch_size=-1 loads all files at once. For a library of 2K textures, use a real batch size and an iterator instead of trusting the default.

If your job is "normalize every texture in this project folder," this is the node that makes it a workflow instead of an afternoon of clicking. And if those textures are HDR, it's the only sane loader in the pack for it.