Updated Downloads section - java3d/java3d-examples.git - Unnamed repository; edit this file 'description' to name the repository.

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author	kcr <kcr@28c7f869-5b4e-e670-f602-82bfaf57f300>	2005-02-11 00:33:01 +0000
committer	kcr <kcr@28c7f869-5b4e-e670-f602-82bfaf57f300>	2005-02-11 00:33:01 +0000
commit	3480d115b5f73c2ea535322cae88a245d82801e0 (patch)
tree	b00123f1d34e517b1ceabb9f0cb5a08f894d80d9 /src/OrientedShape3D
parent	4d8aa28ce803e78a1253a6a17bc6f488c9970dd5 (diff)

Updated Downloads section

Diffstat (limited to 'src/OrientedShape3D')

0 files changed, 0 insertions, 0 deletions

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/* San Angeles Observation OpenGL ES version example
 * Copyright 2004-2005 Jetro Lauha
 * All rights reserved.
 * Web: http://iki.fi/jetro/
 *
 * This source is free software; you can redistribute it and/or
 * modify it under the terms of EITHER:
 *   (1) The GNU Lesser General Public License as published by the Free
 *       Software Foundation; either version 2.1 of the License, or (at
 *       your option) any later version. The text of the GNU Lesser
 *       General Public License is included with this source in the
 *       file LICENSE-LGPL.txt.
 *   (2) The BSD-style license that is included with this source in
 *       the file LICENSE-BSD.txt.
 *
 * This source is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the files
 * LICENSE-LGPL.txt and LICENSE-BSD.txt for more details.
 *
 * $Id$
 * $Revision$
 */

package demos.es1.angeles;

import javax.media.opengl.*;
import javax.media.opengl.glu.*;
import com.jogamp.opengl.util.*;
import com.jogamp.opengl.util.glsl.fixedfunc.*;
import java.nio.*;

public class AngelesGL implements GLEventListener {

    public AngelesGL() {
        this(true);
    }

    public AngelesGL(boolean enableBlending) {
        blendingEnabled = enableBlending;
        quadVertices = GLBuffers.newDirectFloatBuffer(12);
        quadVertices.put(new float[]{
            -1.0f, -1.0f,
             1.0f, -1.0f,
            -1.0f,  1.0f,
             1.0f, -1.0f,
             1.0f,  1.0f,
            -1.0f,  1.0f
        });
        quadVertices.flip();

        light0Position=GLBuffers.newDirectFloatBuffer(4);
        light0Diffuse=GLBuffers.newDirectFloatBuffer(4);
        light1Position=GLBuffers.newDirectFloatBuffer(4);
        light1Diffuse=GLBuffers.newDirectFloatBuffer(4);
        light2Position=GLBuffers.newDirectFloatBuffer(4);
        light2Diffuse=GLBuffers.newDirectFloatBuffer(4);
        materialSpecular=GLBuffers.newDirectFloatBuffer(4);

        light0Position.put(new float[] { FixedPoint.toFloat(-0x40000), 1.0f, 1.0f, 0.0f });
        light0Diffuse.put(new float[] { 1.0f, FixedPoint.toFloat(0x6666), 0.0f, 1.0f });
        light1Position.put(new float[] { 1.0f, FixedPoint.toFloat(-0x20000), -1.0f, 0.0f });
        light1Diffuse.put(new float[] { FixedPoint.toFloat(0x11eb), FixedPoint.toFloat(0x23d7), FixedPoint.toFloat(0x5999), 1.0f });
        light2Position.put(new float[] { -1.0f, 0.0f, FixedPoint.toFloat(-0x40000), 0.0f });
        light2Diffuse.put(new float[] { FixedPoint.toFloat(0x11eb), FixedPoint.toFloat(0x2b85), FixedPoint.toFloat(0x23d7), 1.0f });
        materialSpecular.put(new float[] { 1.0f, 1.0f, 1.0f, 1.0f });

        light0Position.flip();
        light0Diffuse.flip();
        light1Position.flip();
        light1Diffuse.flip();
        light2Position.flip();
        light2Diffuse.flip();
        materialSpecular.flip();

        seedRandom(15);

        width=0;
        height=0;
        x=0;
        y=0;
    }

    public void init(GLAutoDrawable drawable) {
        // FIXME: gl.setSwapInterval(1);

        cComps = drawable.getGL().isGLES1() ? 4: 3;

        this.gl = FixedFuncUtil.wrapFixedFuncEmul(drawable.getGL());
        System.err.println("AngelesGL: "+this.gl);
        
        this.glu = GLU.createGLU();

        gl.glEnable(GL2ES1.GL_NORMALIZE);
        gl.glEnable(GL.GL_DEPTH_TEST);
        gl.glDisable(GL.GL_CULL_FACE);
        gl.glCullFace(GL.GL_BACK);
        gl.glShadeModel(gl.GL_FLAT);

        gl.glEnable(gl.GL_LIGHTING);
        gl.glEnable(gl.GL_LIGHT0);
        gl.glEnable(gl.GL_LIGHT1);
        gl.glEnable(gl.GL_LIGHT2); 

        gl.glEnableClientState(gl.GL_VERTEX_ARRAY);
        gl.glEnableClientState(gl.GL_COLOR_ARRAY);

        for (int a = 0; a < SuperShape.COUNT; ++a)
        {
            sSuperShapeObjects[a] = createSuperShape(SuperShape.sParams[a]);
        }
        sGroundPlane = createGroundPlane();

        gAppAlive = 1;

        sStartTick = System.currentTimeMillis();
        frames=0;

        /*
        gl.glGetError(); // flush error ..
        if(gl.isGLES2()) {
            GLES2 gles2 = gl.getGLES2();

            // Debug ..
            //DebugGLES2 gldbg = new DebugGLES2(gles2);
            //gles2.getContext().setGL(gldbg);
            //gles2 = gldbg;

            // Trace ..
            TraceGLES2 gltrace = new TraceGLES2(gles2, System.err);
            gles2.getContext().setGL(gltrace);
            gles2 = gltrace;
        } */
    }

    public void reshape(GLAutoDrawable drawable, int x, int y, int width, int height) {
        this.width = width;
        this.height=height;
        this.x = x;
        this.y = y;

        this.gl = drawable.getGL().getGL2ES1();

        gl.glMatrixMode(gl.GL_MODELVIEW);
        gl.glLoadIdentity();

        gl.glClearColor(0.1f, 0.2f, 0.3f, 1.0f);

        // JAU gl.glHint(GL2ES1.GL_PERSPECTIVE_CORRECTION_HINT, GL.GL_FASTEST);

        //gl.glShadeModel(gl.GL_SMOOTH);
        gl.glShadeModel(gl.GL_FLAT);
        gl.glDisable(GL.GL_DITHER);

        //gl.glMatrixMode(gl.GL_PROJECTION);
        //gl.glLoadIdentity();
        //glu.gluPerspective(45.0f, (float)width / (float)height, 0.5f, 150.0f);

        //System.out.println("reshape ..");
    }

    public void dispose(GLAutoDrawable drawable) {
    }

    public void display(GLAutoDrawable drawable) {
        long tick = System.currentTimeMillis();

        if (gAppAlive==0)
            return;

        this.gl = drawable.getGL().getGL2ES1();

        // Actual tick value is "blurred" a little bit.
        sTick = (sTick + tick - sStartTick) >> 1;

        // Terminate application after running through the demonstration once.
        if (sTick >= RUN_LENGTH)
        {
            gAppAlive = 0;
            return;
        }

        gl.glClear(GL.GL_DEPTH_BUFFER_BIT | GL.GL_COLOR_BUFFER_BIT);

        gl.glMatrixMode(gl.GL_PROJECTION);
        gl.glLoadIdentity();
        glu.gluPerspective(45.0f, (float)width / (float)height, 0.5f, 150.0f);

        // Update the camera position and set the lookat.
        camTrack();

        // Configure environment.
        configureLightAndMaterial();

        if(blendingEnabled) {
            gl.glEnable(GL.GL_CULL_FACE);
            // Draw the reflection by drawing models with negated Z-axis.
            gl.glPushMatrix();
            drawModels(-1);
            gl.glPopMatrix();
        }

        // Draw the ground plane to the window. (opt. blending)
        drawGroundPlane(); 

        if(blendingEnabled) {
            gl.glDisable(GL.GL_CULL_FACE);
        }

        // Draw all the models normally.
        drawModels(1);

        if(blendingEnabled) {
            // Draw fade quad over whole window (when changing cameras).
            drawFadeQuad();
        }

        frames++;
        tick = System.currentTimeMillis();
    }

    public void displayChanged(GLAutoDrawable drawable, boolean modeChanged, boolean deviceChanged) {
    }

 private boolean blendingEnabled = true;
 private GL2ES1 gl; // temp cache
 private GLU glu;

 // Total run length is 20 * camera track base unit length (see cams.h).
 private int RUN_LENGTH  = (20 * CamTrack.CAMTRACK_LEN) ;
 private int RANDOM_UINT_MAX = 65535 ;

 private long sRandomSeed = 0;

void seedRandom(long seed)
{
    sRandomSeed = seed;
}

int randomUInt()
{
    sRandomSeed = sRandomSeed * 0x343fd + 0x269ec3;
    return Math.abs((int) (sRandomSeed >> 16));
}

private int cComps;

// Definition of one GL object in this demo.
public class GLSpatial {
    /* Vertex array and color array are enabled for all objects, so their
     * pointers must always be valid and non-null. Normal array is not
     * used by the ground plane, so when its pointer is null then normal
     * array usage is disabled.
     *
     * Vertex array is supposed to use GL.GL_FLOAT datatype and stride 0
     * (i.e. tightly packed array). Color array is supposed to have 4
     * components per color with GL.GL_UNSIGNED_BYTE datatype and stride 0.
     * Normal array is supposed to use GL.GL_FLOAT datatype and stride 0.
     */
    private int vboName, count;
    private int vComps, nComps;
    private ByteBuffer pBuffer=null;
    private FloatBuffer vertexArray=null;
    private FloatBuffer colorArray=null;
    private FloatBuffer normalArray=null;
    protected GLArrayDataWrapper vArrayData, cArrayData, nArrayData=null;
    
    public GLSpatial(int vertices, int vertexComponents,
                    boolean useNormalArray) {
        count = vertices;
        vComps= vertexComponents;
        nComps = useNormalArray ? 3 : 0;

        int bSize = GLBuffers.sizeOfGLType(GL.GL_FLOAT) * count * ( vComps + cComps + nComps) ;
        pBuffer = GLBuffers.newDirectByteBuffer(bSize);

        int pos = 0;
        int size= GLBuffers.sizeOfGLType(GL.GL_FLOAT) * count * vComps ;
        vertexArray = (FloatBuffer) GLBuffers.sliceGLBuffer(pBuffer, pos, size, GL.GL_FLOAT);
        int vOffset = 0;
        pos+=size;

        size=GLBuffers.sizeOfGLType(GL.GL_FLOAT) * count * cComps ;
        colorArray = (FloatBuffer) GLBuffers.sliceGLBuffer(pBuffer, pos, size, GL.GL_FLOAT);
        int cOffset=pos;
        pos+=size;

        int nOffset=0;
        if(useNormalArray) {
            size=GLBuffers.sizeOfGLType(GL.GL_FLOAT) * count * nComps ;
            normalArray = (FloatBuffer) GLBuffers.sliceGLBuffer(pBuffer, pos, size, GL.GL_FLOAT);
            nOffset=pos;
            pos+=size;
        }
        pBuffer.position(pos);
        pBuffer.flip();

        int[] tmp = new int[1];
        gl.glGenBuffers(1, tmp, 0);
        vboName = tmp[0];
        
        vArrayData = GLArrayDataWrapper.createFixed(gl.GL_VERTEX_ARRAY, vComps, GL.GL_FLOAT, false,
                                                    0, pBuffer, vboName, vOffset, GL.GL_STATIC_DRAW, GL.GL_ARRAY_BUFFER);
        cArrayData = GLArrayDataWrapper.createFixed(gl.GL_COLOR_ARRAY, cComps, GL.GL_FLOAT, false,
                                                    0, pBuffer, vboName, cOffset, GL.GL_STATIC_DRAW, GL.GL_ARRAY_BUFFER);
        if(useNormalArray) {
            nArrayData = GLArrayDataWrapper.createFixed(gl.GL_NORMAL_ARRAY, nComps, GL.GL_FLOAT, false,
                                                        0, pBuffer, vboName, nOffset, GL.GL_STATIC_DRAW, GL.GL_ARRAY_BUFFER);
        }
    }

    void setCount(int c) { 
        if(count != c) {
            throw new RuntimeException("diff count: "+count+" -> "+c);
        }
        count = c; 
    }

    private boolean sealed = false;

    void seal()
    {
        if(sealed) return;
        sealed = true;

        vertexArray.position(count);
        vertexArray.flip();
        colorArray.position(count);
        colorArray.flip();
        if(nComps>0) {
            normalArray.position(count);
            normalArray.flip();
        }

        if(nComps>0) {
            gl.glEnableClientState(gl.GL_NORMAL_ARRAY);
        }

        gl.glBindBuffer(GL.GL_ARRAY_BUFFER, vboName);
        gl.glBufferData(GL.GL_ARRAY_BUFFER, pBuffer.limit(), pBuffer, GL.GL_STATIC_DRAW);
        gl.glBindBuffer(GL.GL_ARRAY_BUFFER, 0);

        if(nComps>0) {
            gl.glDisableClientState(gl.GL_NORMAL_ARRAY);
        }
    }

    void draw()
    {
        seal();
        if(nComps>0) {
           gl.glEnableClientState(gl.GL_NORMAL_ARRAY);
        }

        gl.glBindBuffer(GL.GL_ARRAY_BUFFER, vboName);

        gl.glVertexPointer(vArrayData);
        gl.glColorPointer(cArrayData);
        if(nComps>0) {
            gl.glNormalPointer(nArrayData);
        }


        gl.glDrawArrays(GL.GL_TRIANGLES, 0, count);

        gl.glBindBuffer(GL.GL_ARRAY_BUFFER, 0);

        if(nComps>0) {
            gl.glDisableClientState(gl.GL_NORMAL_ARRAY);
        }
    }
}

long sStartTick = 0;
long sTick = 0;

int sCurrentCamTrack = 0;
long sCurrentCamTrackStartTick = 0;
long sNextCamTrackStartTick = 0x7fffffff;

GLSpatial sSuperShapeObjects[] = new GLSpatial[SuperShape.COUNT];
GLSpatial sGroundPlane;


public class VECTOR3 {
    float x, y, z;

    public VECTOR3() {
        x=0f; y=0f; z=0f;
    }
    public VECTOR3(float x, float y, float z) {
        this.x=x;
        this.y=y;
        this.z=z;
    }
}



static void vector3Sub(VECTOR3 dest, VECTOR3 v1, VECTOR3 v2)
{
    dest.x = v1.x - v2.x;
    dest.y = v1.y - v2.y;
    dest.z = v1.z - v2.z;
}


static void superShapeMap(VECTOR3 point, float r1, float r2, float t, float p)
{
    // sphere-mapping of supershape parameters
    point.x = (float)(Math.cos(t) * Math.cos(p) / r1 / r2);
    point.y = (float)(Math.sin(t) * Math.cos(p) / r1 / r2);
    point.z = (float)(Math.sin(p) / r2);
}


float ssFunc(final float t, final float p[])
{
    return ssFunc(t, p, 0);
}

float ssFunc(final float t, final float p[], int pOff)
{
    return (float)(Math.pow(Math.pow(Math.abs(Math.cos(p[0+pOff] * t / 4)) / p[1+pOff], p[4+pOff]) +
                            Math.pow(Math.abs(Math.sin(p[0+pOff] * t / 4)) / p[2+pOff], p[5+pOff]), 1 / p[3+pOff]));
}


// Creates and returns a supershape object.
// Based on Paul Bourke's POV-Ray implementation.
// http://astronomy.swin.edu.au/~pbourke/povray/supershape/
GLSpatial createSuperShape(final float params[])
{
    final int resol1 = (int)params[SuperShape.PARAMS - 3];
    final int resol2 = (int)params[SuperShape.PARAMS - 2];
    // latitude 0 to pi/2 for no mirrored bottom
    // (latitudeBegin==0 for -pi/2 to pi/2 originally)
    final int latitudeBegin = resol2 / 4;
    final int latitudeEnd = resol2 / 2;    // non-inclusive
    final int longitudeCount = resol1;
    final int latitudeCount = latitudeEnd - latitudeBegin;
    final int triangleCount = longitudeCount * latitudeCount * 2;
    final int vertices = triangleCount * 3;
    GLSpatial result;
    float baseColor[] = new float[3];
    int a, longitude, latitude;
    int currentVertex, currentQuad;

    result = new GLSpatial(vertices, 3, true);
    if (result == null)
        return null;

    for (a = 0; a < 3; ++a)
        baseColor[a] = ((randomUInt() % 155) + 100) / 255.f;

    currentQuad = 0;
    currentVertex = 0;

    // longitude -pi to pi
    for (longitude = 0; longitude < longitudeCount; ++longitude)
    {

        // latitude 0 to pi/2
        for (latitude = latitudeBegin; latitude < latitudeEnd; ++latitude)
        {
            float t1 = (float) ( -Math.PI + longitude * 2 * Math.PI / resol1 );
            float t2 = (float) ( -Math.PI + (longitude + 1) * 2 * Math.PI / resol1 );
            float p1 = (float) ( -Math.PI / 2 + latitude * 2 * Math.PI / resol2 );
            float p2 = (float) ( -Math.PI / 2 + (latitude + 1) * 2 * Math.PI / resol2 );
            float r0, r1, r2, r3;

            r0 = ssFunc(t1, params);
            r1 = ssFunc(p1, params, 6);
            r2 = ssFunc(t2, params);
            r3 = ssFunc(p2, params, 6);

            if (r0 != 0 && r1 != 0 && r2 != 0 && r3 != 0)
            {
                VECTOR3 pa=new VECTOR3(), pb=new VECTOR3(), pc=new VECTOR3(), pd=new VECTOR3();
                VECTOR3 v1=new VECTOR3(), v2=new VECTOR3(), n=new VECTOR3();
                float ca;
                int i;
                //float lenSq, invLenSq;

                superShapeMap(pa, r0, r1, t1, p1);
                superShapeMap(pb, r2, r1, t2, p1);
                superShapeMap(pc, r2, r3, t2, p2);
                superShapeMap(pd, r0, r3, t1, p2);

                // kludge to set lower edge of the object to fixed level
                if (latitude == latitudeBegin + 1)
                    pa.z = pb.z = 0;

                vector3Sub(v1, pb, pa);
                vector3Sub(v2, pd, pa);

                // Calculate normal with cross product.
                /*   i    j    k      i    j
                 * v1.x v1.y v1.z | v1.x v1.y
                 * v2.x v2.y v2.z | v2.x v2.y
                 */

                n.x = v1.y * v2.z - v1.z * v2.y;
                n.y = v1.z * v2.x - v1.x * v2.z;
                n.z = v1.x * v2.y - v1.y * v2.x;

                /* Pre-normalization of the normals is disabled here because
                 * they will be normalized anyway later due to automatic
                 * normalization (GL2ES1.GL_NORMALIZE). It is enabled because the
                 * objects are scaled with glScale.
                 */
                /*
                lenSq = n.x * n.x + n.y * n.y + n.z * n.z;
                invLenSq = (float)(1 / sqrt(lenSq));
                n.x *= invLenSq;
                n.y *= invLenSq;
                n.z *= invLenSq;
                */

                ca = pa.z + 0.5f;

                if(result.normalArray!=null) {
                    for (i = currentVertex * 3;
                         i < (currentVertex + 6) * 3;
                         i += 3)
                    {
                        result.normalArray.put(i    , (n.x));
                        result.normalArray.put(i + 1, (n.y));
                        result.normalArray.put(i + 2, (n.z));
                    }
                }
                for (i = currentVertex * cComps;
                     i < (currentVertex + 6) * cComps;
                     i += cComps)
                {
                    int j;
                    float color[] = new float[3];
                    for (j = 0; j < 3; ++j)
                    {
                        color[j] = ca * baseColor[j];
                        if (color[j] > 1.0f) color[j] = 1.0f;
                    }
                    result.colorArray.put(i    , color[0]);
                    result.colorArray.put(i + 1, color[1]);
                    result.colorArray.put(i + 2, color[2]);
                    if(3<cComps) {
                        result.colorArray.put(i + 3, 0f);
                    }
                }
                result.vertexArray.put(currentVertex * 3, (pa.x));
                result.vertexArray.put(currentVertex * 3 + 1, (pa.y));
                result.vertexArray.put(currentVertex * 3 + 2, (pa.z));
                ++currentVertex;
                result.vertexArray.put(currentVertex * 3, (pb.x));
                result.vertexArray.put(currentVertex * 3 + 1, (pb.y));
                result.vertexArray.put(currentVertex * 3 + 2, (pb.z));
                ++currentVertex;
                result.vertexArray.put(currentVertex * 3, (pd.x));
                result.vertexArray.put(currentVertex * 3 + 1, (pd.y));
                result.vertexArray.put(currentVertex * 3 + 2, (pd.z));
                ++currentVertex;
                result.vertexArray.put(currentVertex * 3, (pb.x));
                result.vertexArray.put(currentVertex * 3 + 1, (pb.y));
                result.vertexArray.put(currentVertex * 3 + 2, (pb.z));
                ++currentVertex;
                result.vertexArray.put(currentVertex * 3, (pc.x));
                result.vertexArray.put(currentVertex * 3 + 1, (pc.y));
                result.vertexArray.put(currentVertex * 3 + 2, (pc.z));
                ++currentVertex;
                result.vertexArray.put(currentVertex * 3, (pd.x));
                result.vertexArray.put(currentVertex * 3 + 1, (pd.y));


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