Using AI Rendering Directly in Revit: A Step-by-Step Guide

If you work in Revit, you already know the pain of exporting views, switching to a rendering engine, waiting hours for output, and then going back to Revit to make changes. The Interstitial AI Revit plugin eliminates that loop entirely. You generate photorealistic renders from inside Revit, using whatever view you already have open.

This guide walks you through installation, first render, and the workflow adjustments that get the best results.

Step 1: Download the Plugin

Head to our getting started page and download the Windows installer for the Revit plugin. The plugin supports Revit 2022 through 2026. The download is under 15 MB — it is a lightweight bridge between your Revit session and the Interstitial AI rendering engine.

You will need an Interstitial AI account. If you do not have one, sign up at app.interstitial-ai.com — the free tier gives you enough credits to follow this entire tutorial.

Step 2: Install to the Correct Directory

Run the installer and it will place the plugin files in:

%AppData%\Autodesk\Revit\Addins\[Your Revit Version]\

If you prefer manual installation, copy the .addin manifest file and the plugin DLL to that directory. Restart Revit after installation. You should see a new ISTAI panel appear in the Add-Ins tab.

If the panel does not appear, check that the .addin file points to the correct DLL path and that your Revit version is supported.

Step 3: Set Up Your View

Open the Revit project you want to render. Navigate to a 3D view — perspective views tend to produce the most compelling results, but parallel projections work too.

A few things to keep in mind before generating:

• Camera angle matters. Eye-level perspectives with a clear subject produce the strongest output. Avoid extreme fish-eye or overhead views unless that is specifically what you need.
• Lighting setup helps. If you have sun settings configured in Revit, the AI will pick up on shadow direction and light quality. A golden-hour sun angle adds immediate atmosphere.
• Hide what you do not need. Turn off categories like duct work or structural framing if they clutter the view. The cleaner your input, the better the output.

Step 4: Choose a Model and Generate

In the ISTAI panel, click Generate. A side panel opens where you configure your render:

1. Select a model. For architectural exteriors and interiors, Nano Banana Pro is the recommended starting point. It balances realism, speed, and credit cost. If you need maximum photorealism for a final deliverable, try Flux Pro or Flux Max. For quick concept exploration where speed matters more than polish, Flux Klein gets results in seconds.

2. Write a prompt. Describe the mood, materials, and context you want. For example: “Warm afternoon light, oak timber cladding, landscaped courtyard with mature trees, overcast sky.” The AI uses your Revit geometry as the structural guide and your prompt as the stylistic direction.

3. Set resolution. Start at standard resolution for iteration. Use upscaling when you have a version you are happy with.

4. Click Generate. Depending on the model, results arrive in 5 to 30 seconds. The render appears directly in the plugin panel.

Step 5: Iterate Without Leaving Revit

This is where the workflow becomes powerful. You are not exporting, waiting, and re-importing. You are iterating in place.

• Change the camera angle in Revit, hit Generate again.
• Swap materials using the AI material swap feature — test brick, timber, concrete, or metal facades without touching your Revit model. We cover this in depth in our material swapping guide.
• Adjust the prompt to shift the mood. Same geometry, different season, different time of day, different landscaping.

Each generation costs credits based on the model and resolution you choose. Check our pricing page for the full breakdown.

Tips for Best Results

After working with hundreds of architecture firms using the plugin, here are the patterns that consistently produce the best output:

Compose your Revit view like a photograph. The AI respects your composition. If the framing is awkward in Revit, it will be awkward in the render.

Use descriptive prompts. “Modern house” gives you generic results. “Three-story residential tower with horizontal timber louvers, ground-floor retail with full-height glazing, dusk lighting with warm interior glow” gives you something specific and useful.

Generate multiple options. Credits are inexpensive. Generate five or six variations with different prompts or models, then pick the best. This is faster than trying to perfect a single render.

Leverage Revit’s design options. If you have multiple design options set up in Revit, you can switch between them and generate renders for each — giving you a complete comparison set for client review in minutes rather than days.

What Comes Next

Once you are comfortable with single-image generation, explore video walkthroughs for animated presentations, and read our guide on cutting presentation time by 90% to see how firms are restructuring their client-facing workflows around AI rendering.

The plugin is the fastest path from design intent to visual output. No file exports, no render farm queues, no context switching. Just architecture and the images that communicate it.