Most automatic relighting approaches struggle because existing shadows and highlights encode ambiguous or conflicting light directions. This LoRA encodes explicit sun elevation and rotation so an image-to-image Flux2Klein pipeline can place directional sunlight based on a small reference (a rendered sphere) while preserving scene content—especially useful for exterior scenes and timelapse sequences.
What Sets It Apart
- Precise sun direction control: trained to match a reference sun elevation and rotation, so you can specify where the sun should be relative to the camera rather than relying on vague prompt hints.
- Overcast-intermediate workflow: generates an overcast version of the target first to remove preexisting directional cues, so the relighting step produces more coherent shadows and shading.
- Sphere reference + tooling: uses a rendered ball as the light-direction reference and provides a ComfyUI Sphere-Light node and a Blender scene, so users can generate consistent references without manual guesswork.
- Lightweight integration: implemented as a LoRA for Flux2Klein 9B, enabling image-to-image relighting without fine-tuning a full backbone model; however, it was trained mainly on exteriors and may not generalize to indoor scenes.
Who it's for + tradeoffs
Great fit if you are an artist, environment/lighting artist, or photographer who needs to change sun direction in outdoor renders or photos and wants reproducible, seed-stable timelapse relighting. Look elsewhere if you need robust interior relighting, fine-grained control over light hardness/color/intensity (v1 focuses on direction), or a solution that avoids an overcast intermediate step. The package includes workflow nodes and reference assets but relies on Flux2Klein 9B and the image-to-image pipeline for inference.
