public VertexAttribute(int usage, int numComponents, VertexAttribPointerType type, bool normalized, string alias, int unit)
{
this.usage = usage;
this.numComponents = numComponents;
this.type = type;
this.normalized = normalized;
this.alias = alias;
this.unit = unit;
this.usageIndex = JavaUtils.numberOfTrailingZeros(usage);
}
protected Attribute(long type)
{
this.type = type;
this.typeBit = JavaUtils.numberOfTrailingZeros(type);
}