three
Version:
JavaScript 3D library
37 lines (19 loc) • 628 B
JavaScript
class WebGLCapabilities {
constructor( backend ) {
this.backend = backend;
this.maxAnisotropy = null;
}
getMaxAnisotropy() {
if ( this.maxAnisotropy !== null ) return this.maxAnisotropy;
const gl = this.backend.gl;
const extensions = this.backend.extensions;
if ( extensions.has( 'EXT_texture_filter_anisotropic' ) === true ) {
const extension = extensions.get( 'EXT_texture_filter_anisotropic' );
this.maxAnisotropy = gl.getParameter( extension.MAX_TEXTURE_MAX_ANISOTROPY_EXT );
} else {
this.maxAnisotropy = 0;
}
return this.maxAnisotropy;
}
}
export default WebGLCapabilities;