Answer

Short answer:

Use the Upscale tool within Rendair AI with high Image Strength values. This feature increases image resolution and sharpness up to 8K while strictly preserving the original geometry, materials, and lighting of your input.

Overview

In architectural visualization, there is a distinct difference between iterating and polishing. While many AI workflows focus on generating new ideas or changing styles, professionals often need to take an approved concept and simply make it presentation-ready.

The enhancement workflow in Rendair AI is built for this specific stage. It addresses the common issue where a base render or screenshot captures the correct intent but lacks the pixel density or texture clarity required for client presentations or marketing materials. The goal is to remove pixelation and blur without the AI "hallucinating" new architectural details that do not exist in the plan.

How it works

The process is designed to be a one-click solution that requires no complex prompting or configuration.

1. Select your base image: Upload your low-resolution render, screenshot, or existing visualization to the platform.

2. Choose the Upscale tool: Locate the upscaling options in the interface.

3. Select output quality: Choose your desired target resolution (commonly 2K, 4K, 6K, or 8K).

4. Generate: The system processes the image, adding pixel density and refining textures while locking the composition.

Capabilities

The enhancement tools focus on fidelity and clarity rather than creative reinterpretation.

• High-resolution output: Convert standard 1MP generations or low-res uploads into 2K, 4K, 6K, or 8K images suitable for large-format printing.

• Texture refinement: Sharpen materials like wood grain, concrete textures, and fabric details that often appear muddy in lower resolutions.

• Geometry preservation: Maintain the exact lines, edges, and structural elements of the original design.

• Noise reduction: Clean up visual artifacts often found in quick draft renders.

Inputs and outputs

Inputs

• Source files: JPG, PNG, WEBP, TIFF, HEIC, AVIF.

• Source types: Draft renders, screenshots from 3D modeling software, or previously generated AI images.

• Max upload size: 16MB.

Outputs

• Resolutions: 2K, 4K, 6K, up to 8K (availability depends on your specific plan).

• Aspect Ratio: Inherits the exact aspect ratio of the base image.

When to use this

• Client presentations: When you need to print a rendering on a presentation board and standard HD resolution is insufficient.

• Marketing materials: When visuals need to be crisp for website headers or brochures.

• Finalizing concepts: When the design is approved and you need a final "hero shot" without risking changes to the architecture.

• Restoring assets: When you only have a low-quality saved version of an old project file.

Limitations or notes

• Texture density: At very high resolutions (6K or 8K), noise can sometimes appear depending on the density of the textures in the original image.

• Plan dependencies: Access to higher resolution upscaling (such as 8K) may vary based on your subscription tier (Student, AI Creator, Pro, or Team Pro).

• Not a fix for bad geometry: Upscaling enhances what is there. If the underlying geometry or perspective is fundamentally broken, upscaling will simply make those errors higher resolution.

• File management: Higher resolution images result in larger file sizes. While Rendair offers unlimited storage for active subscribers, downloading and sharing these files may take longer depending on your internet connection.