Common Armory3D Issues and Solutions

1. Armory3D Project Fails to Build

Build failures prevent successful game compilation.

Root Causes:

  • Incorrect installation of Armory3D or Blender.
  • Missing or outdated dependencies.
  • Incorrect export settings for target platforms.

Solution:

Ensure Armory3D is properly installed within Blender:

Edit > Preferences > Add-ons > Armory3D

Verify required dependencies are installed:

pip install --upgrade Kha

Check project export settings:

Render > Properties > Armory Export

2. Performance Issues in Armory3D

Games experience lag, frame drops, or stuttering.

Root Causes:

  • Too many high-poly models or unoptimized assets.
  • Unoptimized lighting and shadows.
  • Inefficient scripting leading to CPU overhead.

Solution:

Reduce polygon count for 3D models:

Object Mode > Decimate Modifier

Optimize lighting by using baked shadows:

Render > Bake Shadows

Use object pooling to reduce CPU overhead:

var enemy = Scene.active.create("Enemy");

3. Rendering Glitches and Visual Artifacts

Textures may not load properly, shadows appear incorrect, or rendering issues occur.

Root Causes:

  • Incorrect material settings in Blender.
  • Unsupported shaders on target platform.
  • GPU driver compatibility issues.

Solution:

Ensure correct material assignments:

Properties > Material > Assign

Switch to a supported shader type:

Material > Shader Type > Principled BSDF

Update GPU drivers to the latest version.

4. Physics Not Working Correctly

Physics behaviors such as collisions or gravity do not work as expected.

Root Causes:

  • Rigid body settings incorrectly configured.
  • Scale transformations not applied to objects.
  • Physics engine limitations on certain platforms.

Solution:

Ensure objects have rigid body physics enabled:

Object > Physics Properties > Enable Rigid Body

Apply transformations before running the simulation:

Ctrl + A > Apply Scale

Switch to a different physics solver if needed.

5. Deployment and Export Issues

Games fail to export or do not run correctly on target platforms.

Root Causes:

  • Incorrect export settings for the target platform.
  • Unsupported graphics APIs for the selected platform.
  • Missing runtime dependencies.

Solution:

Verify export settings for the selected platform:

Properties > Render > Export Settings

Ensure the correct graphics API is used:

Graphics > API > Vulkan or OpenGL

Check for missing dependencies:

pip install --upgrade armory

Best Practices for Armory3D Development

  • Regularly update Armory3D and Blender to the latest stable versions.
  • Optimize 3D models, textures, and animations for better performance.
  • Use baked lighting to improve real-time rendering efficiency.
  • Test physics interactions across different platforms for consistency.
  • Check GPU driver compatibility before final deployment.

Conclusion

By troubleshooting build failures, performance bottlenecks, rendering glitches, physics inconsistencies, and export issues, developers can effectively use Armory3D to create high-quality games. Implementing best practices ensures stable and optimized game development across platforms.

FAQs

1. Why is my Armory3D project not building?

Check Blender and Armory3D installation, update dependencies, and verify export settings.

2. How can I improve Armory3D performance?

Reduce polygon count, use baked lighting, and optimize asset loading.

3. Why are my textures and materials not rendering correctly?

Ensure correct material settings, use supported shaders, and update GPU drivers.

4. How do I fix physics-related issues in Armory3D?

Enable rigid body physics, apply transformations, and use a compatible physics engine.

5. What should I do if my game fails to export?

Verify export settings, ensure proper graphics API selection, and install missing dependencies.