<h1 id="lumashift-exposure-slider">LumaShift Exposure Slider</h1><h3 id="bright-dark-exposure-and-cinematic-lighting-control">BRIGHT ↔ DARK — Exposure &amp; Cinematic Lighting Control</h3><p><strong>One LoRA. Two Lighting Directions.</strong></p><p>LumaShift Exposure Slider is a bidirectional LoRA created to adjust image exposure, brightness, shadows and overall lighting atmosphere.</p><p>From bright, softly illuminated photography to dramatic cinematic darkness, LumaShift gives you creative control simply by adjusting the LoRA weight.</p><p>Unlike a basic brightness filter, LumaShift can also influence shadow distribution, contrast and the overall lighting style of the generated image.</p><h2 id="how-it-works">How It Works</h2><h3 id="negative-weights-bright">NEGATIVE WEIGHTS — BRIGHT</h3><ul><li><p>Increases perceived image brightness</p></li><li><p>Produces brighter midtones and softer shadows</p></li><li><p>Creates lighter photographic atmospheres</p></li><li><p>Works well for portraits, beauty and fashion photography</p></li><li><p>Extreme negative strengths may wash out contrast and alter colors</p></li></ul><h3 id="positive-weights-dark">POSITIVE WEIGHTS — DARK</h3><ul><li><p>Creates deeper shadows and darker environments</p></li><li><p>Enhances cinematic low-key lighting</p></li><li><p>Produces stronger tonal separation and dramatic contrast</p></li><li><p>Can emphasize textures through directional lighting</p></li><li><p>Particularly effective for moody portraits, vehicles and dark cinematic scenes</p></li></ul><h2 id="recommended-weights">Recommended Weights</h2><p>WeightResult<strong>-1.5</strong>Strong Bright-1.0Bright-0.5Soft Bright0.0Original Checkpoint+0.5Soft Dark+1.0Dark<strong>+2.5Strong Cinematic Dark+5.0Extreme Dark</strong></p><p><strong>Recommended Bright Range: -0.5 to -1.5</strong></p><p><strong>Recommended Dark Range: +1.0 to +2.5</strong></p><p><strong>Experimental Dark Range: up to +5.0</strong></p><p>These recommendations are based on visual tests. The response is not necessarily linear, and higher strengths may introduce composition changes or excessive darkness.</p><h2 id="best-use-cases">Best Use Cases</h2><h3 id="portrait-and-beauty-photography">Portrait &amp; Beauty Photography</h3><p>Adjust brightness and shadow depth while maintaining an expressive photographic appearance.</p><h3 id="black-and-white-photography">Black &amp; White Photography</h3><p>Create elegant monochrome portraits, stronger tonal contrasts and dramatic low-key effects.</p><p>Especially effective for portraits featuring selective color accents, such as vivid blue eyes.</p><h3 id="cinematic-and-dark-photography">Cinematic &amp; Dark Photography</h3><p>Enhance moody atmospheres, dark interiors, dramatic lighting and shadow-heavy compositions.</p><h3 id="fashion-and-luxury-editorial">Fashion &amp; Luxury Editorial</h3><p>Explore soft, high-key photography or sophisticated, darker magazine-style imagery.</p><h3 id="automotive-photography">Automotive Photography</h3><p>Create glossy reflections, darker bodywork, deeper shadow areas and cinematic garage environments.</p><h2 id="example-usage">Example Usage</h2><p><strong>Soft Bright</strong></p><p><code>&lt;lora:LumaShift Exposure Slider:-0.5&gt;</code></p><p><strong>Bright</strong></p><p><code>&lt;lora:LumaShift Exposure Slider:-1.0&gt;</code></p><p><strong>Strong Bright</strong></p><p><code>&lt;lora:LumaShift Exposure Slider:-1.5&gt;</code></p><p><strong>Cinematic Dark</strong></p><p><code>&lt;lora:LumaShift Exposure Slider:2.5&gt;</code></p><p><strong>Extreme Dark</strong></p><p><code>&lt;lora:LumaShift Exposure Slider:5.0&gt;</code></p><p>Use the exact LoRA filename installed in your application.</p><p><strong>No trigger word required.</strong></p><h2 id="recommended-workflow">Recommended Workflow</h2><ol><li><p>Load a compatible Krea2 Turbo checkpoint or custom merge.</p></li><li><p>Add LumaShift Exposure Slider to your generation.</p></li><li><p>Start at -1.0 for a brighter look or +1.0 for a darker look.</p></li><li><p>Increase positive strength gradually for dramatic cinematic darkness.</p></li><li><p>Avoid excessive negative values when maintaining natural colors and contrast is important.</p></li></ol><p>For controlled comparisons, keep the same seed, checkpoint, steps, guidance and resolution.</p><h2 id="tested-subjects">Tested Subjects</h2><ul><li><p>Female beauty and editorial portraits</p></li><li><p>Black and white portraits with selective blue eye color</p></li><li><p>Luxury fashion photography</p></li><li><p>Red supercar in an industrial parking garage</p></li><li><p>Neutral gray studio sphere</p></li></ul><p>The strongest demonstrated effects were observed at extreme positive weights, especially for low-key cinematic lighting.</p><h2 id="compatibility">Compatibility</h2><p>Designed for Krea2 Turbo workflows.</p><p>Compatibility and results depend on the checkpoint, LoRA implementation, prompt and generation settings.</p><h2 id="important-notes">Important Notes</h2><ul><li><p>Negative values brighten the image.</p></li><li><p>Positive values darken the image.</p></li><li><p>The dark direction is particularly effective for cinematic results.</p></li><li><p>Strengths above +2.5 may produce very deep shadows and conceal some details.</p></li><li><p>Negative strengths below -1.5 may cause washed-out images.</p></li><li><p>The LoRA may affect lighting distribution, perceived contrast and minor composition details.</p></li><li><p>This is a generative lighting slider, not a mathematically precise exposure adjustment.</p></li></ul><hr /><p><strong>Created by Vince AI</strong></p><p>Explore the light. Embrace the dark.</p>

Files with SHA256: 597643a88a3c364c1bc2824d07beda75726f0b666d73770dfdee28968b544f97