晖映 增强背光效果

[英文版本见下方]

607323927751959196

这是一款用于改善逆光与侧光环境下光照表现的Lora模型。许多模型的noise_offset未经过调整，会导致画面整体亮度过于均衡，缺乏暗部重点或摄影反光效果，尤其是二次元类模型，即便给出了backlighting的提示词，人物依然显得亮度与环境一致，缺乏突出的光影重点，画面色调显得非常“平”。本LORA特地增强了对比度，以改善这一问题，对二、三次元模型均能有效提升自然光照效果。

• 特别提示：由于触发词未作区分，使用backlighting提示词时，会显著加深对比度与自然光效。若您不喜此种风格，可尝试移除该提示词，并调整Lora权重，以获得更柔和的效果。后续版本计划通过特殊关键词解决此问题。

• 特别提示2：该Lora在表现丁达尔效应方面效果出众，甚至可与另一款尚在完善中的Lora（Komorebi 日语「木漏れ日」，即阳光穿过树叶的光束）搭配使用，在二次元模型中模拟出类似效果。具体效果请参考例图，待测试完善后将择机发布。

• 特别提示3：Lora的权重与CFG值高低都会影响阳光效果。若不希望画面出现过多夕阳余晖感，可通过调整提示词、降低权重或CFG值来优化。

对比效果如下：

提示词均为：1girl, backlighting

Enhanced Backlighting is a Lora used to improve the backlighting and sidelighting effects in environments with strong lighting contrast. Many models have not adjusted their noise_offset, which can result in an overly balanced overall brightness and a lack of emphasis on dark areas or photographic reflection effects, especially for 2D models. Even when the prompt for backlighting is given, the character still appears to have the same brightness as the environment, lacking a prominent highlight and making the image appear very "flat" in tone. This LORA intentionally deepens the contrast to improve this problem and has a natural light illumination improvement effect for both 2D and 3D models.

• Special Note: Due to forgetting to distinguish the trigger word, using the prompt 'backlighting' will heavily increase the contrast and natural light effect. If you don't like this style, you can try removing it and changing the weight of Lora to achieve a lighter effect. We plan to solve this problem through special keywords in future versions.

• Special Note 2: This Lora has a good effect on the Ding Darr phenomenon, and can even be combined with another Lora, which is still under development, to simulate the effect of 'Komorebi' in Japanese (sunlight filtering through trees) for 2D models. Please refer to the example image for the effect. It will be released after testing and improvement.

• Special Note 3: The weight and CFG of Lora will affect the effect of sunshine. If you don't want the screen to have too much sunset glow, you can improve or lower the weight or CFG through prompt words.

The comparison effect is as upside img.

The prompt words are '1girl' and 'backlighting'.