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Interactive Architectural Visualization with UE5

Mar 12, 2025

Unreal Engine 5 for Architectural Visualization: Intermediate Level Course

Course Overview

  • Focuses on architectural representation using Unreal Engine 5 (UE5).
  • Level 1: Static images (still renders).
  • Level 2: Animations (guided 3D tours).
  • Level 3: Interactive environments (free movement and interaction).

Key Functionalities Covered

  1. Object Movement: Ability to move objects like doors and windows.
  2. Material Switching: Shuffle through materials on a per object basis.
  3. Sunlight Control: Change sunlight angle interactively.
  4. Object Transformation: Change objects themselves.

Course Materials

  • Uses a scene created in the beginner course.
  • Option to download models and files from a Patreon link.

Chapter 1: Interactive Environment - Door Animation

  • Setting Up: Ensure project is in first-person character mode.
  • Creating Interaction: Use line tracing to interact with objects.
  • Blueprint Setup: Use UE5 blueprints to create interactive elements.
  • Door Animation: Create a door that opens and closes interactively.
    • Utilize timelines for smooth transitions.
    • Implement events to toggle door states (open/close).
  • User Interface: Add visual feedback with decals.

Chapter 2: Material Switching

  • Blueprint Creation: Use blueprints to shuffle materials on objects.
  • Implementation: Create a multi-gate for material transitions.
  • Examples: Apply to floors and wall niches.

Chapter 3: Object Transformation

  • Static Mesh Transformation: Change objects like a banana into a book.
  • Collision Setup: Ensure objects have collision properties for interaction.
  • Physics Simulation: Enable objects to react to physics (e.g., fall to the ground).
  • Interactive Control: Use blueprint logic for transforming objects.

Chapter 4: Sunlight Control

  • UI Creation: Develop a minimal user interface with sliders for light control.
  • Directional Light: Adjust the sun’s horizontal and vertical angles.
  • Blueprint Logic: Use casting and event ticks to update sunlight based on slider input.

Packaging the Project

  • Settings: Adjust project settings for desktop platforms.
  • Maps and Modes: Define the starting map and editor settings.
  • Compilation: Package the project for shipping or development.

Additional Notes

  • Collision Adjustment: Fix shadow inaccuracies by adjusting Nanite settings.
  • User Feedback: Enable user interaction through simple inputs.
  • Performance Considerations: Manage project resources for optimal performance.

Conclusion

  • Encourages users to expand on the base functionalities to fit specific project needs.
  • Provides foundational skills in interactive architectural visualization within UE5.

These notes summarize the key concepts and steps covered in the lecture. They provide a structured guide to implementing interactive visualization techniques in Unreal Engine 5, focusing on creating dynamic and immersive architectural experiences.