Addressing Transparency Issues in Eyewear Configurator

Based on the image you've shared, I can see the transparency issue with the eyewear frames when viewed from the side. This is a common challenge when working with semi-transparent materials in Three.js.

While the provided context doesn't contain specific information about handling transparency in eyewear models, I can suggest some general approaches to address this issue:

Potential Solutions

1. Adjust Material Properties:

   • Modify the opacity settings of your materials
   • Experiment with different transparency values
   • Consider using alphaTest property to control when pixels are rendered

2. Rendering Order:

   • Ensure proper rendering order for transparent objects
   • Use renderOrder property to control which objects render first

3. Custom Depth Material:

   • Create a custom depth material for your transparent parts
   • This can help with proper occlusion between transparent elements

4. Consider Alternative Renderers:

   • The documentation mentions several renderer options that might help:
     • CSS3DRenderer
     • SVGRenderer
   • These might offer different approaches to handling transparency

5. Layer-based Approach:

   • Separate your model into layers
   • Render opaque parts first, then transparent parts

Code Example

Here's a basic example of how you might adjust material properties:

JAVASCRIPTCopied
// For the semi-transparent frame parts
const frameMaterial = new THREE.MeshPhysicalMaterial({
  color: 0x885533,
  transparent: true,
  opacity: 0.8,
  roughness: 0.5,
  transmission: 0.2, // Controls how much light passes through
  thickness: 0.5,    // Physical thickness of the material
  clearcoat: 1.0,    // Add a clear coating layer
  clearcoatRoughness: 0.1
});

// For parts that should be more visible (like hinges)
const hingeMaterial = new THREE.MeshPhysicalMaterial({
  color: 0x885533,
  transparent: true,
  opacity: 0.9,
  roughness: 0.3,
  metalness: 1.0,
  transmission: 0.1  // Less transmission for better visibility
});

// Set rendering order to ensure proper layering
frameObject.renderOrder = 1;
hingeObject.renderOrder = 2;

Without more specific details about your implementation, these are general approaches to try. You might need to experiment with different combinations of these techniques to achieve the desired visual effect for your eyewear configurator.