Rendero segmentation maps

Rendero segmentation: how to control outputs with segmentation maps

Rendero introduces a new level of control in architectural visualization.
Starting from a base image, you can refine every part of your render with precision.

One of the most powerful tools in this workflow is segmentation mapping.

Base image: the foundation of every render

The process begins with a base image. This can be a render, sketch, or screenshot.

This image defines geometry, proportions, and key details.
AI enhances the image, but strong input always leads to better output.

If you need specific textures or elements, include them directly in the base image.

Reference image: defining atmosphere

Reference images control mood, lighting, and color palette.

Want a minimal, cold-toned scene?
Use a reference that reflects that style.

The AI will translate this visual language into your render.

Text input: precise definition

Rendero uses text as a direct description of the final output.

Instead of commands, describe the result:
“polished concrete wall, soft overcast lighting, warm wooden floor”

You can use preset styles or fully custom prompts.

Segmentation maps: precise control over elements

Segmentation maps divide your image into separate regions.

For example:
windows, walls, roof, floor, furniture

Each segment can be edited independently.

Rendero supports up to 16 segments, allowing detailed control even in complex scenes.

Manual segmentation

You can manually define areas by drawing over the image.

This gives maximum control, especially when precision matters.

Use it when:
• you need exact boundaries
• automatic detection is not sufficient

Trade-off is time and manual work.

Automatic segmentation maps

A faster approach is using maps generated in 3D software.

Tools like Blender, 3ds Max, Maya, or Cinema 4D can export material ID maps.

These maps use colors to define different materials and objects.

Rendero reads each color as a separate segment.

What are segments?

Segments are independent parts of the image.

Typical examples:
• windows and glass
• structural frames
• facades and walls
• roofs
• floors and terraces
• shading elements

Each segment behaves like a separate layer.

Benefits of segmentation maps

Precision
Edit specific areas without affecting the rest of the image.

Flexibility
Adjust materials, textures, and lighting per segment.

Efficiency
Automated maps speed up workflows.

Professional output
Cleaner and more controlled visuals.

Exporting segmentation maps from 3D software

Each software has its own workflow, but the principle is the same:

Assign material or object IDs and export them as a color-coded image.

Basic overview:

Blender
Use Cryptomatte and export material ID passes.

3ds Max
Use Material ID or VRayMtlID render elements.

Maya
Use Arnold AOV with Object or Material ID.

Cinema 4D
Use Object Buffer or Material Color in multi-pass rendering.

Export as PNG or EXR for best accuracy.

Enhancing segments with text

Once segments are defined, you can describe each one.

Examples:
“light concrete, slightly weathered, strong texture at joints”
“clean glass with subtle reflections”
“warm wooden floor, soft tone, minimal grain”

Text guides the AI on how to render each segment.

Final output

The result keeps the original structure intact.

Windows, roofs, and key elements stay exactly where they should be.
Only visual quality and detail are enhanced.

Conclusion

Segmentation maps unlock full control in AI rendering.

They allow precise, flexible, and scalable workflows for architectural visualization.

Combined with base images, references, and text inputs, they turn Rendero into a powerful production tool.

Whether you are an architect, designer, or visual artist, segmentation gives you control over every detail.

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