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