ThreeJS getUniforms

• 获取uniforms变量

function getUniforms(material) {
        const shaderID = shaderIDs[material.type];
        let uniforms;

        if (shaderID) {
                const shader = ShaderLib[shaderID];
                uniforms = UniformsUtils.clone(shader.uniforms);
        } else {
                uniforms = material.uniforms;
        }

        return uniforms;
}