中文速览：极光旧梦是一个面向动漫画风的光影增强 + 画质提升 LoRA，底模 Krea 2。它给二次元/动漫画面加一层电影感光照——暖调定向光、金色轮廓光与边缘辉光、柔和泛光、更丰富的中间调过渡，并收尾以更干净的细节与细腻胶片颗粒。无需触发词，它不改变画面里的角色与构图，只改变光怎么打在画面上、以及成图有多完整。权重建议 1.0（设计强度）或 1.3~1.5（光效更浓，画廊样图即用 1.5）。提示词只写「主体 + 构图 + 场景」效果最好，堆叠风格词会稀释它。样图的生成参数全部公开，可直接点开查看。

AURORAL Nostalgia is a lighting and quality-enhancement LoRA for anime-style illustrations on Krea 2. It lays a cinematic light pass over 2D / anime artwork — warm directional light, golden rim light and edge glow, soft bloom and halation, richer mid-tone gradients — and finishes the render with cleaner detail and a subtle analogue film grain, while leaving your characters and composition exactly where your prompt puts them.

It does not change who or what is in the frame. It changes how the light falls on it, and how finished the result looks.

Trigger word

None. The effect applies automatically — just describe your subject and scene.

What it does

• Lighting: warm directional light, golden rim light and edge glow, soft bloom / halation, stronger separation between lit areas and shadows.
• Quality: cleaner rendering with finer line and detail retention, smoother tonal gradients, gentle depth of field and a fine film-grain finish — the "finished illustration" look rather than flat output.
• Colour: warm–cool separation and a nostalgic film grade, richer without going oversaturated.

Recommended strength

• 1.0 — designed strength: a clear lighting and quality upgrade, content intact.
• 1.3 – 1.5 — noticeably stronger glow, bloom and film character. Our own gallery samples were made at 1.5.
• 0.8 and below — the effect fades quickly.
• On Turbo / quantized Krea 2 checkpoints the effect is a little weaker than on the full-precision base.

Works best with

• Anime and semi-realistic anime illustrations — single character, half-body or full-body.
• Scenes that profit from atmosphere: dusk, night streets, lantern light, interiors, gardens, window light.
• Prompts that already describe the subject well — let this LoRA supply the light and the finish. Your own style words dilute it.

Honest limitations

• A declared style in your prompt wins. If you ask for completely flat, unlit cel shading, the LoRA will mostly add colour and grain instead of repainting the light.
• Best with content-only prompts (subject / framing / scene) rather than stacked style keywords.
• At 1.5+ on very soft or low-detail scenes some micro-detail is traded for mood; drop to 1.0–1.2 when you want the texture back.

Notes

All gallery samples were generated with this LoRA on Krea 2, 10 steps, CFG 1.0, euler / simple, at 1024 px on the short side. The generation data is public — open any sample image to read its full prompt and settings.