WANNA experiences support 3D models with up to 37,748,736 pixels (3D Viewer) or 18,874,368 pixels (Virtual Try-On) to ensure optimal performance and fast loading across all platforms.

If the combined pixel count of all textures in your project exceeds these limits, an error message will appear when you try to upload it to Studio, for example:

Pixels count for model ID.gltf exceeds 18874368 (found 22020096). Please reduce the total texture pixel count to meet the Studio limit.

Below, you’ll find recommendations on how to reduce the total texture pixel count while maintaining the visual quality of your model.

How to fix it

Note. The WANNA Studio automatically resizes any textures exceeding 2048x2048 px, reducing them to this resolution. 

1.  Analyze the project and calculate pixel count

• The easiest way to check the total pixel count is to export the project in glTF + texture format
• This allows you to view the extracted textures in the file explorer and manually calculate the total pixel count
• Use the following pixel values for reference:
  • 2048x2048 px = 4,194,304 pixels
  • 1024x1024 px = 1,048,576 pixels
  • Sum up the total pixel count in the project

2. Optimize the textures

• Identify how much the total pixel count exceeds the limit
• Determine which textures can be resized while maintaining quality
• The best practice is to reduce texture resolution in steps:
  • 2048 → 1024 → 512 → 256 → 128 px
• Many textures can be safely reduced by half if they don’t contain fine details or essential information
• For example, flat color textures, uniform materials, or low-detail areas can be optimized aggressively

3. Verify the Final Pixel Count

• Recalculate the total pixel count after optimization
• Ensure the project stays within the allowed limits for 
  • 3D Viewer (37,748,736 px) 
  • VTO (18,874,368 px)