Package org.jmol.util

Class Shader

  • public class Shader
extends java.lang.Object

    All functions. Implements the shading of RGB values to support shadow and lighting highlights.

    Each RGB value has 64 shades. shade[0] represents ambient lighting. shade[63] is white ... a full specular highlight.

    Author:
    Miguel, miguel@jmol.org, Bob Hanson, hansonr@stolaf.edu, N David Brown -- cel shading

    • Field Detail

      • SHADE_INDEX_NOISY_LIMIT

        public static final byte SHADE_INDEX_NOISY_LIMIT
        See Also:
        Constant Field Values

      • xLight

        private float xLight

      • yLight

        private float yLight

      • zLight

        private float zLight

      • lightSource

        javajs.util.V3 lightSource

      • specularOn

        boolean specularOn

      • usePhongExponent

        boolean usePhongExponent

      • ambientPercent

        int ambientPercent

      • diffusePercent

        int diffusePercent

      • specularExponent

        int specularExponent

      • specularPercent

        int specularPercent

      • specularPower

        int specularPower

      • phongExponent

        int phongExponent

      • ambientFraction

        float ambientFraction

      • diffuseFactor

        float diffuseFactor

      • intenseFraction

        float intenseFraction

      • specularFactor

        float specularFactor

      • ashades

        private int[][] ashades

      • ashadesGreyscale

        private int[][] ashadesGreyscale

      • celOn

        boolean celOn

      • celPower

        int celPower

      • celRGB

        private int celRGB

      • celZ

        private float celZ

      • useLight

        private boolean useLight

      • sphereShadeIndexes

        public byte[] sphereShadeIndexes

      • seed

        private int seed

      • sphereShapeCache

        public int[][] sphereShapeCache

      • ellipsoidShades

        public byte[][][] ellipsoidShades

      • nOut

        public int nOut

      • nIn

        public int nIn

    • Constructor Detail

      • Shader

        public Shader()

    • Method Detail

      • setLightSource

        private void setLightSource​(float x,
                            float y,
                            float z)

      • setCel

        void setCel​(boolean celShading,
            int celShadingPower,
            int argb)

      • flushCaches

        void flushCaches()

      • setLastColix

        public void setLastColix​(int argb,
                         boolean asGrey)

      • getShades

        int[] getShades​(short colix)

      • getShadesG

        int[] getShadesG​(short colix)

      • checkShades

        private void checkShades​(int n)

      • getShades2

        private int[] getShades2​(int rgb,
                         boolean greyScale)

      • getShadeIndex

        public int getShadeIndex​(float x,
                         float y,
                         float z)

      • getShadeB

        public byte getShadeB​(float x,
                      float y,
                      float z)

      • getShadeFp8

        public int getShadeFp8​(float x,
                       float y,
                       float z)

      • getShadeF

        private float getShadeF​(float x,
                        float y,
                        float z)

      • getShadeN

        public byte getShadeN​(float x,
                      float y,
                      float z,
                      float r)

      • calcSphereShading

        private void calcSphereShading()

      • nextRandom8Bit

        public int nextRandom8Bit()

        Implements RANDU algorithm for random noise in lighting/shading.

        RANDU is the classic example of a poor random number generator. But it is very cheap to calculate and is good enough for our purposes.

        Returns:
        Next random

      • getEllipsoidShade

        public int getEllipsoidShade​(float x,
                             float y,
                             float z,
                             int radius,
                             javajs.util.M4 mDeriv)

      • createEllipsoidShades

        public void createEllipsoidShades()