LTX Releases VFX Tools for Mattes, Archival Restoration and HDR
LTX, the Lightricks platform, has presented a set of VFX tools aimed at the production pipeline, including Alpha Gen for soft mattes, Refine and Restore for archival footage and an updated SDR to HDR IC-LoRA that outputs 16-bit EXR. The tools were shown in a video discussion between Doug and Mohamed, according to the LTX blog.
- Alpha Gen pulls soft mattes with partial transparency from footage shot without a green screen.
- The updated SDR to HDR IC-LoRA rebuilds highlight range and outputs 16-bit EXR for the grade.
- Native Resolution uses overlapping tiles blended at every denoising step; the demo takes an HD loom plate to 8K HDR.
- Alpha Gen is an IC-LoRA trained on rendered footage with clean alpha, and studios could train their own.
A range of tools for common VFX tasks
According to LTX, the new tools cover several VFX tasks, from alpha mattes to HDR. Alpha Gen pulls soft mattes with partial transparency from footage that was shot without a green screen. That makes it relevant for shots where a keyed background was not available on set.
Refine and Restore is designed for archival footage. The updated SDR to HDR IC-LoRA rebuilds highlight range and outputs 16-bit EXR for the grade. LTX also lists Native HDR, which, in the company's words, keeps the dynamic range you shot.
In the discussion, Doug and Mohamed explain how these tools help artists bring footage into compositing and keep working with it in familiar tools.
Tiled processing for high-resolution video
One highlight is Native Resolution, a tiled workflow for refining footage at high resolution. Each tile overlaps its neighbor, and the blend happens at every denoising step, so the tiles resolve into one image rather than being stitched together afterwards.
In the demo, Doug takes an HD loom plate to 8K HDR and checks the highlight range in Nuke, a compositing application widely used in VFX work.
Open weights and room for studios to adapt
The discussion also covers open weights and fine-tuning. Mohamed points out that Alpha Gen is an IC-LoRA trained on rendered footage with clean alpha. He asks what stops a studio from training its own version for the data it needs.
LTX stresses that the tools are meant to support the creative process. According to the post, the workflows handle specific steps, while artists guide and refine the final shot.
What it means for VFX artists
The release focuses on steps that fit into existing compositing and grading work: mattes without a green screen, highlight recovery with EXR output, and high-resolution refinement checked in Nuke. For studios, the mention of open weights and fine-tuning suggests they could train their own versions of tools such as Alpha Gen on their own data, though the source does not give details on licensing or availability.
LTX invites readers to watch the full video to see the workflows in action and hear what the new tools could make possible for VFX artists.
LTX (Lightricks): LTX’s Latest VFX Tools: Built for the Production Pipeline | LTX Blog
