getTextureChannelMask

Returns bitmask of all TextureChannels used by the given texture. Determination is based only on the role of the textures, e.g. a texture used for the occlusionTexture will have (at least) a red channel. See listTextureChannels for an array alternative.

Example:

const mask = getTextureChannelMask(texture);
if (mask & TextureChannel.R) {
  console.log('texture red channel used');
}