SchmusRealism: Anamorphic Streaks - Krea 2

This slider draws horizontal anamorphic lens flares through the bright lights in a Krea 2 image: headlights, street lamps, neon, stage spots.
No trigger word. Strength = amount, 0 to 1

What it does

Anamorphic film lenses squeeze the image sideways. Every bright point light then flares into a thin horizontal line, usually blue: the look of night-time car chases, cyberpunk cities and space movies.

This LoRA adds the streaks as a lens effect:

- Streaks start at the lights. Headlights, lamps, neon tubes and red warning lights each get their own line, longer on the brighter ones.

- Thin and sharp, with a white core near the light that fades to blue: real lens streaks, not broad bands of color.

- 0.5 is a hint, 1.0 is the full movie look.

Use cases

• Night cars and streets: headlights on wet asphalt, highways, tunnels, street racing.

• Cyberpunk and neon: rainy alleys, signs, megacities.

• Concerts and stages: spotlights pointing into the crowd.

• Sci-fi: corridors, cockpits, landing lights.

• Cozy night scenes: a cat at a window with the city lights behind it.

Why not just prompt "anamorphic lens flare"?

Same seed for every column. 

Off: base Krea 2. 

Base Krea 2 + prompt: the same prompt with "Shot on anamorphic lenses: noticable content shift over the whole image. Thin horizontal blue lens flare streaks spanning the whole height of the light source instead of through its horizontal center. 

LoRA 0.5 / 1.0: the slider, prompt unchanged. Thin horizontal streaks as they would appear from a real lens.

• The prompt rebuilds the photo. A different camera position, another car, other street lamps; the cat moves. The whole image also turns colder.

• The prompt draws broad bands and star bursts. Wide blue smears across the frame, often where there is no light at all (car), and starburst lamps instead of lines (cat).

• The slider keeps your picture and draws thin lines that start exactly at each light: the headlights, the street lamps and the red lights on the radio tower.

• The slider is a dial. 0.5 is subtle, 1.0 is the full look. No rerolling, no prompt tweaking.

How to use

Recommended:  Krea 2 Turbo, 8 steps, cfg 1, euler / simple, with two samplers:

1. Sampler 1: steps 0 to 3 on the plain model. This lays out the picture.

2. Sampler 2: steps 3 to 8 with the slider. This adds the streaks.

Set the amount with strength_model on the Load LoRA (model only) node:

StrengthLook0.5subtle: short streaks on headlights and lamps1.0the full anamorphic look

Values in between blend smoothly.

• Keep the change point (start_at_step / end_at_step) at 3. At 4 the streaks get weaker, at 5 they almost disappear.

• Positive strengths only. Krea 2 has no streaks to remove, so negative values just change the image.

• Works with other LoRAs. Put the slider last in the chain on the sampler-2 model.

• Best subjects: dark scenes with small, bright lights. Big soft light sources (a lit window, an overcast sky) get little or nothing.

Strengths and weaknesses

Strengths

• Thin, physically placed streaks from the actual lights in your image, which prompting can't do.

• Smooth control from 0 to 1 with a single number.

• With the two-sampler workflow, the image keeps its composition, light colors and mood.

• Scenes without bright lights are left alone.

Weaknesses

• Faces and small lettering can change at 1.0. A face in the frame may turn into a slightly different person, and neon characters get redrawn. At 0.5 they stay. For portraits, stay around 0.5 to 0.7.

• Small drift elsewhere: clouds and small background details can shift a little.

• Daylight at 1.0: a few faint streaks can appear on very bright white areas, such as a white shirt in the sun.

Thanks for checking out my LoRA and I hope you find it helpful in your artworks.
Feel free to leave some feedback or let me know what could be improved. 🫶