Texture Brightness Issue with MeshBasicMaterial

There are several possible reasons why your textures appear lighter than expected when using MeshBasicMaterial in your tile engine:

Common Causes

1. Gamma Correction: If your renderer has gammaOutput set to true, it can cause textures to appear lighter. Check your renderer settings.

2. Texture Encoding: The texture encoding might not match your renderer's output encoding. Try setting the texture's encoding:

   JAVASCRIPTCopied
   texture.encoding = THREE.sRGBEncoding;
   // or
   texture.encoding = THREE.LinearEncoding;

3. Material Color: MeshBasicMaterial has a color property that multiplies with the texture. Make sure it's set to white (0xffffff) if you want the original texture colors:

   JAVASCRIPTCopied
   const material = new THREE.MeshBasicMaterial({
     map: texture,
     color: 0xffffff // Default is white, but good to be explicit
   });

4. Texture Settings: Check if your texture has any settings that might affect brightness:

   JAVASCRIPTCopied
   texture.flipY = false; // Try toggling this
   texture.premultiplyAlpha = false; // Try toggling this

5. Renderer Output Encoding: Check your renderer's output encoding:

   JAVASCRIPTCopied
   renderer.outputEncoding = THREE.sRGBEncoding;
   // or
   renderer.outputEncoding = THREE.LinearEncoding;

Without seeing your specific code, it's difficult to pinpoint the exact issue, but these are common causes for texture brightness discrepancies in Three.js.

Try adjusting these settings to see if any resolve your issue with the lighter textures.