Can I lock certain parts of an image while editing others?

Answer

Short answer:

Yes, you can preserve specific areas of an image while modifying others. In Rendair AI, this is achieved through the edit tool, where you select only the areas you wish to change using a brush or lasso, effectively locking the unselected parts of the image.

Overview

In architectural visualization, you often achieve a result that is 90% perfect, but a specific detail, like a chair, a texture, or a background element, needs adjustment. Regenerating the entire image usually alters the parts you wanted to keep.

Rendair AI solves this through selective editing, often referred to as "Edit." Instead of a specific "lock" button, the system works by exclusion. Any part of the image you do not highlight with the selection tool remains protected and unchanged. This allows for precise iterations without losing the overall composition or approved design elements.

How it works

The process relies on defining a mask over the area you want the AI to regenerate.

1. Select the Edit tool: Open your image in the editing interface.

2. Define the active area: Use the brush or lasso tool to highlight the specific object or surface you want to change.

3. Leave the rest untouched: The area outside your selection is treated as "locked" by the system. The AI will not alter pixels in this region.

4. Describe the change: Enter a text prompt describing what should appear in the selected area (e.g., "modern leather armchair" or "oak wood flooring").

5. Generate: Rendair AI generates the new element within the boundaries you set, blending it seamlessly into the locked surroundings.

Capabilities

This workflow supports several critical design tasks:

• Material swapping: Change a concrete floor to wood without altering the furniture or lighting.

• Object replacement: Swap a specific piece of furniture for a different style while keeping the camera angle fixed.

• Context adjustment: Modify the sky or exterior landscape through a window while preserving the interior design.

• Error correction: Remove unwanted artifacts or "hallucinations" that appeared in the original render.

• Staging: Add people or vegetation to specific empty spots in the composition.

When to use this

• Client feedback loops: When a client approves the structure but dislikes the furniture style.

• Design development: When you need to test three different flooring options for the same room.

• Final polishing: When you need to fix a small rendering error in an otherwise perfect image.

Limitations or notes

• Selection accuracy: The quality of the blend depends on your selection. Ensure your brush or lasso covers the entire object and its shadow for the most realistic result.

• Aspect ratio: The editing tools inherit the aspect ratio of the base image.

• Resolution: While the system blends the new section well, significant changes to large areas may require upscaling afterwards to ensure consistent texture density across the image.