/**
* //! Draw a pretty arrow on the z-axis using a cone and a cylinder (using GLUT)
*
* @param aArrowStart
* @param aArrowTip
* @param aWidth
*/
public static void jDrawArrow(
final JVector3d aArrowStart, final JVector3d aArrowTip, final double aWidth) {
GL2 gl = GLContext.getCurrent().getGL().getGL2();
gl.glPushMatrix();
// We don't really care about the up vector, but it can't
// be parallel to the arrow...
JVector3d up = new JVector3d(0, 1, 0);
// JVector3d arrow = aArrowTip-aArrowStart;
JVector3d arrow = new JVector3d(0, 0, 0);
arrow.normalize();
double d = Math.abs(JMaths.jDot(up, arrow));
if (d > .9) {
up = new JVector3d(1, 0, 0);
}
JMatrixGL.jLookAt(gl, aArrowStart, aArrowTip, up);
double distance = JMaths.jDistance(aArrowTip, aArrowStart);
// This flips the z axis around
gl.glRotatef(180, 1, 0, 0);
// create a new OpenGL quadratic object
GLUquadric quadObj;
quadObj = glu.gluNewQuadric();
// set rendering style
glu.gluQuadricDrawStyle(quadObj, GLU.GLU_FILL);
// set normal-rendering mode
glu.gluQuadricNormals(quadObj, GLU.GLU_SMOOTH);
// render a cylinder and a cone
gl.glRotatef(180, 1, 0, 0);
glu.gluDisk(quadObj, 0, aWidth, 10, 10);
gl.glRotatef(180, 1, 0, 0);
glu.gluCylinder(quadObj, aWidth, aWidth, distance * ARROW_CYLINDER_PORTION, 10, 10);
gl.glTranslated(0, 0, ARROW_CYLINDER_PORTION * distance);
gl.glRotatef(180, 1, 0, 0);
glu.gluDisk(quadObj, 0, aWidth * 2.0, 10, 10);
gl.glRotatef(180, 1, 0, 0);
glu.gluCylinder(quadObj, aWidth * 2.0, 0.0, distance * ARRROW_CONE_PORTION, 10, 10);
// delete our quadric object
glu.gluDeleteQuadric(quadObj);
gl.glPopMatrix();
}
@Override
public void display(final GLAutoDrawable gLDrawable) {
final GL2 gl = gLDrawable.getGL().getGL2();
enableStates(gl, true);
gl.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);
gl.glPushMatrix();
gl.glRotatef(angleZ, 0.0f, 1.0f, 0.0f);
gl.glRotatef(45.0f, 0.0f, 0.0f, 1.0f);
glut.glutSolidTeapot(2.0f);
gl.glPopMatrix();
gl.glFlush();
if (angleZ >= 180.0f) {
rotDir = -1.0f;
} else if (angleZ <= 0.0f) {
rotDir = +1.0f;
}
angleZ += rotIncr * rotDir;
enableStates(gl, false);
}
@Override
public void display(GLAutoDrawable drawable) {
GL2 gl = drawable.getGL().getGL2();
gl.glClear(GL.GL_COLOR_BUFFER_BIT);
// gl.glColor3f(1.0f, 0.0f, 0.0f); //ここは削除
gl.glRotatef(25f, 0f, 1f, 0f);
gl.glBegin(GL_POLYGON);
gl.glColor3f(1.0f, 0.0f, 0.0f); // 赤
gl.glVertex2f(-0.9f, -0.9f);
gl.glColor3f(0.0f, 1.0f, 0.0f); // 緑
gl.glVertex2f(0.9f, -0.9f);
gl.glColor3f(0.0f, 0.0f, 1.0f); // 青
gl.glVertex2f(0.9f, 0.9f);
gl.glColor3f(1.0f, 1.0f, 0.0f); // 黄
gl.glVertex2f(-0.9f, 0.9f);
gl.glEnd();
}
@Override
public void display(GLAutoDrawable drawable) {
GL2 gl = drawable.getGL().getGL2();
gl.glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // GL_DEPTH_BUFFER_BITを追加
gl.glLoadIdentity();
// 視点位置と視線方向
glu.gluLookAt(3.0f, 4.0f, 5.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f);
// 光源の位置設定
// gl.glLightfv(GL_LIGHT0, GL_POSITION, light0pos, 0);
// gl.glLightfv(GL_LIGHT1, GL_POSITION, light1pos, 0);
// 図形の回転
gl.glTranslatef(0.5f, 0.5f, 0.5f);
gl.glRotatef(r, 0.0f, 1.0f, 0.0f);
gl.glTranslatef(-0.5f, -0.5f, -0.5f);
// 図形の色 (赤)
// gl.glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, red, 0);//追加
// gl.glColor3f(0.0f, 0.0f, 0.0f);
// 図形の描画
gl.glBegin(GL_QUADS);
for (int j = 0; j < 6; ++j) {
// gl.glColor3fv(color[j], 0); //追加
// gl.glNormal3fv(normal[j], 0);
for (int i = 0; i < 4; ++i) {
gl.glNormal3fv(vertex[face[j][i]], 0);
gl.glVertex3fv(vertex[face[j][i]], 0);
}
}
gl.glEnd();
// 一周回ったら回転角を 0 に戻す
if (r++ >= 360.0f) r = 0;
System.out.println("anim:" + animator.isAnimating() + ", r:" + r);
if (willAnimatorPause) {
animator.pause();
System.out.println("animoator paused:");
willAnimatorPause = false;
}
}
/**
* //! Draw an x-y-z frame.
*
* @param aAxisLengthScale
* @param aAxisThicknessScale
* @param aModifyMaterialState
*/
public static void jDrawFrame(
final double aAxisLengthScale,
final double aAxisThicknessScale,
final boolean aModifyMaterialState) {
// Triangle vertices:
int nTriangles = 8;
// Quad vertices:
int nQuads = 16;
GL2 gl = GLContext.getCurrent().getGL().getGL2();
// set material properties
float[] fnull = {0, 0, 0, 0};
gl.glMaterialfv(GL2.GL_FRONT_AND_BACK, GL2.GL_SPECULAR, fnull, 0);
gl.glMaterialfv(GL2.GL_FRONT_AND_BACK, GL2.GL_EMISSION, fnull, 0);
gl.glColorMaterial(GL2.GL_FRONT_AND_BACK, GL2.GL_AMBIENT_AND_DIFFUSE);
gl.glEnable(GL2.GL_COLOR_MATERIAL);
gl.glPolygonMode(GL2.GL_FRONT_AND_BACK, GL2.GL_FILL);
// enable vertex and normal arrays
gl.glEnableClientState(GL2.GL_NORMAL_ARRAY);
gl.glEnableClientState(GL2.GL_VERTEX_ARRAY);
if (aModifyMaterialState) {
gl.glEnable(GL2.GL_COLOR_MATERIAL);
gl.glColorMaterial(GL2.GL_FRONT, GL2.GL_AMBIENT_AND_DIFFUSE);
gl.glPolygonMode(gl.GL_FRONT_AND_BACK, gl.GL_FILL);
}
for (int k = 0; k < 3; k++) {
gl.glPushMatrix();
// Rotate to the appropriate axis
if (k == 0) {
gl.glRotatef(-90.0f, 0, 1, 0);
gl.glColor3f(1.0f, 0.0f, 0.0f);
} else if (k == 1) {
gl.glRotatef(90.0f, 1, 0, 0);
gl.glColor3f(0.0f, 1.0f, 0.0f);
} else {
gl.glRotatef(180.0f, 1, 0, 0);
gl.glColor3f(0.0f, 0.0f, 1.0f);
}
// scaling
gl.glScaled(aAxisThicknessScale, aAxisThicknessScale, aAxisLengthScale);
// render frame object
gl.glVertexPointer(3, GL2.GL_FLOAT, 0, triVerticesBuffer);
gl.glNormalPointer(GL2.GL_FLOAT, 0, triNormalsBuffer);
gl.glDrawArrays(GL2.GL_TRIANGLES, 0, nTriangles * 3);
gl.glVertexPointer(3, GL2.GL_FLOAT, 0, quadVerticesBuffer);
gl.glNormalPointer(GL2.GL_FLOAT, 0, quadNormalsBuffer);
gl.glDrawArrays(GL2.GL_QUADS, 0, nQuads * 4);
gl.glPopMatrix();
}
// disable vertex and normal arrays
gl.glDisableClientState(GL2.GL_NORMAL_ARRAY);
gl.glDisableClientState(GL2.GL_VERTEX_ARRAY);
}
@Override
public void display(GLAutoDrawable drawable) {
GL2 gl2 = drawable.getGL().getGL2();
GLU glu = GLU.createGLU();
gl2.glClear(GL2.GL_COLOR_BUFFER_BIT | GL2.GL_DEPTH_BUFFER_BIT);
gl2.glEnable(GL2.GL_DEPTH_TEST);
gl2.glDisable(GL2.GL_CULL_FACE);
gl2.glMatrixMode(GL2.GL_PROJECTION);
gl2.glLoadIdentity();
glu.gluPerspective(60, drawable.getSurfaceWidth() / drawable.getSurfaceHeight(), 0.1f, 100);
gl2.glMatrixMode(GL2.GL_MODELVIEW);
gl2.glLoadIdentity();
camera_.apply(gl2, glu);
light_.apply(gl2, glu);
terrain_.draw(gl2, glu);
Runnable triangle =
() -> {
gl2.glBegin(GL2.GL_TRIANGLES);
{
gl2.glColor3f(1, 1, 1);
gl2.glNormal3f(0, 0, 1);
gl2.glVertex3f(0, 1, 0);
gl2.glColor3f(1, 0, 0);
gl2.glNormal3f(0, 0, 1);
gl2.glVertex3f(-0.87f, -0.5f, 0);
gl2.glColor3f(0, 0, 1);
gl2.glNormal3f(0, 0, 1);
gl2.glVertex3f(0.87f, -0.5f, 0);
gl2.glColor3f(1, 1, 1);
gl2.glNormal3f(0.71898836f, 0.4170133f, -0.5560177f);
gl2.glVertex3f(0, 1, 0);
gl2.glColor3f(0, 0, 1);
gl2.glNormal3f(0.71898836f, 0.4170133f, -0.5560177f);
gl2.glVertex3f(0.87f, -0.5f, 0);
gl2.glColor3f(0, 1, 0);
gl2.glNormal3f(0.71898836f, 0.4170133f, -0.5560177f);
gl2.glVertex3f(0, 0, -0.75f);
gl2.glColor3f(1, 0, 0);
gl2.glNormal3f(-0.7189883f, 0.41701326f, -0.5560177f);
gl2.glVertex3f(-0.87f, -0.5f, 0);
gl2.glColor3f(1, 1, 1);
gl2.glNormal3f(-0.7189883f, 0.41701326f, -0.5560177f);
gl2.glVertex3f(0, 1, 0);
gl2.glColor3f(0, 1, 0);
gl2.glNormal3f(-0.7189883f, 0.41701326f, -0.5560177f);
gl2.glVertex3f(0, 0, -0.75f);
gl2.glColor3f(0, 0, 1);
gl2.glNormal3f(0, -1.305f, -0.87f);
gl2.glVertex3f(0.87f, -0.5f, 0);
gl2.glColor3f(1, 0, 0);
gl2.glNormal3f(0, -1.305f, -0.87f);
gl2.glVertex3f(-0.87f, -0.5f, 0);
gl2.glColor3f(0, 1, 0);
gl2.glNormal3f(0, -1.305f, -0.87f);
gl2.glVertex3f(0, 0, -0.75f);
}
gl2.glEnd();
};
gl2.glPushMatrix();
{
gl2.glPushMatrix();
gl2.glTranslatef(0, 0, 0);
gl2.glRotatef(angle__, 0, 1, 0);
triangle.run();
gl2.glPopMatrix();
gl2.glPushMatrix();
gl2.glTranslatef(0, 3.2f, 0);
gl2.glRotatef(angle__ + 30, 0, 1, 0);
triangle.run();
gl2.glPopMatrix();
gl2.glPushMatrix();
gl2.glTranslatef(3.2f, 0, 0);
gl2.glRotatef(angle__ + 60, 0, 1, 0);
triangle.run();
gl2.glPopMatrix();
}
gl2.glPopMatrix();
angle__ += 1;
gl2.glPushMatrix();
gl2.glTranslatef(0.05f, -1.5f, 5);
gl2.glScalef(0.05f, 0.05f, 0.05f);
for (Face face : glock3__.faces) {
gl2.glBegin(GL2.GL_POLYGON);
for (FaceVertex vertex : face.vertices) {
gl2.glColor3f(1, 1, 1);
gl2.glNormal3f(vertex.n.x, vertex.n.y, vertex.n.z);
gl2.glVertex3f(vertex.v.x, vertex.v.y, vertex.v.z);
}
gl2.glEnd();
}
gl2.glPopMatrix();
}