Package org.joml

Class Options

  • public final class Options
extends java.lang.Object
    Utility class for reading system properties.
    Author:
    Kai Burjack

    • Field Summary

      Fields 
      Modifier and Type Field Description
      static boolean DEBUG
      Whether certain debugging checks should be made, such as that only direct NIO Buffers are used when Unsafe is active, and a proxy should be created on calls to readOnlyView().
      static boolean FASTMATH
      Whether fast approximations of some java.lang.Math operations should be used.
      static boolean FORCE_UNSAFE
      Whether to force the use of sun.misc.Unsafe when copying memory with MemUtil.
      static boolean NO_UNSAFE
      Whether not to use sun.misc.Unsafe when copying memory with MemUtil.
      static java.text.NumberFormat NUMBER_FORMAT
      The NumberFormat used to format all numbers throughout all JOML classes.
      static int numberFormatDecimals
      When useNumberFormat is true then this determines the number of decimal digits produced in the formatted numbers.
      static boolean SIN_LOOKUP
      When FASTMATH is true, whether to use a lookup table for sin/cos.
      static int SIN_LOOKUP_BITS
      When SIN_LOOKUP is true, this determines the table size.
      static boolean USE_MATH_FMA
      Whether to try using java.lang.Math.fma() in most matrix/vector/quaternion operations if it is available.
      static boolean useNumberFormat
      Whether to use a NumberFormat producing scientific notation output when formatting matrix, vector and quaternion components to strings.

    • Method Summary

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Field Detail

      • DEBUG

        public static final boolean DEBUG
        Whether certain debugging checks should be made, such as that only direct NIO Buffers are used when Unsafe is active, and a proxy should be created on calls to readOnlyView().

      • NO_UNSAFE

        public static final boolean NO_UNSAFE
        Whether not to use sun.misc.Unsafe when copying memory with MemUtil.

      • FORCE_UNSAFE

        public static final boolean FORCE_UNSAFE
        Whether to force the use of sun.misc.Unsafe when copying memory with MemUtil.

      • FASTMATH

        public static final boolean FASTMATH
        Whether fast approximations of some java.lang.Math operations should be used.

      • SIN_LOOKUP

        public static final boolean SIN_LOOKUP
        When FASTMATH is true, whether to use a lookup table for sin/cos.

      • SIN_LOOKUP_BITS

        public static final int SIN_LOOKUP_BITS
        When SIN_LOOKUP is true, this determines the table size.

      • useNumberFormat

        public static final boolean useNumberFormat
        Whether to use a NumberFormat producing scientific notation output when formatting matrix, vector and quaternion components to strings.

      • USE_MATH_FMA

        public static final boolean USE_MATH_FMA
        Whether to try using java.lang.Math.fma() in most matrix/vector/quaternion operations if it is available. If the CPU does not support it, it will be a lot slower than `a*b+c` and potentially generate a lot of memory allocations for the emulation with `java.util.BigDecimal`, though.

      • numberFormatDecimals

        public static final int numberFormatDecimals
        When useNumberFormat is true then this determines the number of decimal digits produced in the formatted numbers.

      • NUMBER_FORMAT

        public static final java.text.NumberFormat NUMBER_FORMAT
        The NumberFormat used to format all numbers throughout all JOML classes.