How to Recolor Architectural Window Glass Tints in Nano Banana 2 Lite

Architectural visualization often requires testing multiple glass options without rendering new scenes from scratch. Nano Banana 2 Lite offers a fast way to experiment with different window tint colors on building facades. By using specific text prompts, you can simulate various glass types, such as cool blues or deep greens, directly within the image-to-image workflow. This approach helps designers quickly iterate on facade aesthetics while maintaining the structural integrity of the original render.

It is important to understand that Nano Banana refers to the AI image generation and editing tool described here. It is not a skincare brand, bottle, jar, or physical subject. The tool operates by interpreting your text instructions to modify existing images. When working with architectural elements like glass, the goal is to alter the color properties while preserving the geometry of the windows and the surrounding building structure.

Prerequisites for Glass Tinting

Before attempting to recolor window glass, ensure you have a clear base image of the building facade. Since Nano Banana 2 Lite is focused on speed and cost, it is optimized for single-step edits rather than complex multi-turn workflows. Do not expect the model to handle multiple reference inputs simultaneously; it works best when you upload one primary image and provide a concise description of the desired change.

You will need access to the Nano Banana 2 interface at /nanobanana2. While the website hosts a page named Nano Banana Lite at /nanobananalite, this does not automatically confirm support for Google Nano Banana 2 Lite features. You must verify that you are selecting the correct model version, identified as Gemini 3.1 Flash Lite Image, to utilize the specific capabilities of the Lite tier. Remember that prompt instructions describe desired outcomes but do not guarantee identity, label, object, or typography preservation. If your building has specific signage or unique architectural details, be aware that these might shift slightly during the recoloring process.

Step-by-Step Guide to Applying Tints

Follow these numbered steps to apply blue or green tints to your architectural render:

1. Upload Your Base Image: Navigate to the generator and select the image-to-image mode. Upload a high-quality photo or render of the building facade where the windows are clearly visible.
2. Select the Model: Ensure the active model is set to Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image). This selection ensures the fastest processing time suitable for quick iterations.
3. Craft Your Prompt: Enter a descriptive prompt focusing on the glass color. For example, use phrases like "change all window glass to a deep emerald green tint" or "apply a reflective blue tint to the facade windows." Keep the instruction focused on the glass to avoid altering the walls or roof.
4. Generate the Result: Click the generate button. The system will process the image, applying the requested color changes to the glass areas based on its understanding of light and reflection.
5. Review and Refine: Examine the output. If the tint looks too uniform or unnatural, try adjusting the prompt to include terms like "natural lighting" or "reflective surface" to improve realism.

A usable prompt example for this task is: "Recolor the windows of this modern office building to a dark blue tint, maintaining realistic reflections and shadows."

Judging Results and Fixing Common Issues

Evaluating the success of your edit involves checking if the glass color matches the intent while the rest of the building remains unchanged. Look for consistency in the tint across all windows. A common issue is the model changing the wall color along with the glass. If this happens, refine your prompt to explicitly state "only change the glass color" or "keep the brick walls exactly as they are."

Another potential limitation is the lack of optimization for sequential editing. If the first attempt is unsatisfactory, do not rely on a multi-turn conversation to fix it incrementally. Instead, start a new generation with a revised prompt. Because Nano Banana 2 Lite is not designed for complex multi-reference inputs, providing a single, clear instruction yields better results than trying to layer multiple constraints.

If the glass appears flat or lacks depth, add descriptors related to lighting conditions, such as "sunny day" or "overcast sky," to help the model simulate how light interacts with the tinted surface. Always remember that these examples are illustrative and do not guarantee specific outcomes. The AI interprets language probabilistically, so slight variations in the final image are expected.

For more advanced features or higher fidelity requirements, consider exploring other tiers, but for rapid facade tinting, Nano Banana 2 Lite provides an efficient solution. Try Nano Banana to start experimenting with your own architectural projects today.