void drawCuboid(Part p) {
gl.glBegin(GL2.GL_LINES);
gl.glColor3d(1, 1, 1);
for (double vx : new double[] {-p.w / 2, p.w / 2}) {
for (double vz : new double[] {-p.w / 2, p.w / 2}) {
// vertical lines
gl.glVertex3d(vx, 0, vz);
gl.glVertex3d(vx, p.h, vz);
}
for (double vy : new double[] {0, p.h}) {
// hoizontal lines parallel to z axis
gl.glVertex3d(vx, vy, -p.w / 2);
gl.glVertex3d(vx, vy, p.w / 2);
// hoizontal lines parallel to x axis
gl.glVertex3d(-p.w / 2, vy, vx);
gl.glVertex3d(p.w / 2, vy, vx);
}
}
gl.glEnd();
}
public static void drawCoordinateSystem(GL2 gl) {
gl.glBegin(GL_LINES);
gl.glColor3d(1, 0, 0);
gl.glVertex3i(0, 0, 0);
gl.glVertex3i(1, 0, 0);
gl.glColor3d(1, 1, 0);
gl.glVertex3i(0, 0, 0);
gl.glVertex3i(0, 1, 0);
gl.glColor3d(0, 1, 0);
gl.glVertex3i(0, 0, 0);
gl.glVertex3i(0, 0, 1);
gl.glEnd();
}
/**
* Draws a centered grid with given dimensions
*
* @param gl OpenGL context
* @param h grid height
* @param v grid width
*/
public static void drawGrid(GL2 gl, int h, int v) {
gl.glBegin(GL_LINES);
gl.glColor3d(.3, .3, .3);
for (int x = -h / 2; x <= h / 2; x++) {
gl.glVertex3i(x, 0, -v / 2);
gl.glVertex3i(x, 0, v / 2);
}
for (int z = -v / 2; z <= v / 2; z++) {
gl.glVertex3i(-h / 2, 0, z);
gl.glVertex3i(h / 2, 0, z);
}
gl.glEnd();
}
public void draw() {
// Clear GL state
gl.glDisable(GL_LIGHTING);
gl.glDisable(GL_DEPTH);
gl.glMatrixMode(GL_MODELVIEW);
gl.glPushMatrix();
gl.glLoadIdentity();
gl.glMatrixMode(GL_PROJECTION);
gl.glPushMatrix();
gl.glLoadIdentity();
gl.glClearColor(0.8f, 0.2f, 0.2f, 1.0f);
gl.glClear(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT);
gl.glPointSize(1.0f);
// Set the viewport
glu.gluOrtho2D(xMin, xMax, yMin, yMax);
gl.glBegin(GL_POINTS);
for (int x = (int) (xMin); x < xMax; x++)
for (int y = (int) (yMin); y < yMax; y++) {
gl.glColor3d(viewPort[x][y].r, viewPort[x][y].g, viewPort[x][y].b);
gl.glVertex2d(x + 0.5, y + 0.5);
}
gl.glEnd();
// Restore state
gl.glMatrixMode(GL_MODELVIEW);
gl.glPopMatrix();
gl.glMatrixMode(GL_PROJECTION);
gl.glPopMatrix();
gl.glEnable(GL_LIGHTING);
gl.glEnable(GL_DEPTH);
}
@Override
public void display(GLAutoDrawable a) {
GL2 gl2 = a.getGL().getGL2();
this.basicClear(gl2);
width = a.getWidth();
height = a.getHeight();
if (!pause) {
juliaImaginary += juliaInc;
if (juliaImaginary >= 0.95f) juliaInc = -juliaInc;
else if (juliaImaginary <= 0.3f) juliaInc = -juliaInc;
}
// juliaReal += juliaInc2;
// if (juliaReal >= 0.38f)
// juliaInc2 = -juliaInc2;
// else if (juliaImaginary <= 0.35f)
// juliaInc2 = -juliaInc2;
gl2.glMatrixMode(GL2.GL_PROJECTION);
gl2.glLoadIdentity();
gl2.glOrtho(0, 1, 0, 1, -1, 1);
gl2.glMatrixMode(GL2.GL_MODELVIEW);
gl2.glLoadIdentity();
gl2.glColor3d(0.5, 0.5, 0);
shader.bind(gl2);
// Set shader uniform variables
if (use64 == true) {
shader.setUniform1i(gl2, "width", width);
shader.setUniform1i(gl2, "height", height);
shader.setUniform1i(gl2, "iter", iteration);
shader.setUniformf(gl2, "cminX1", (float) dcminx);
shader.setUniformf(gl2, "cminX2", (float) (dcminx - (double) ((float) dcminx)));
shader.setUniformf(gl2, "cminY1", (float) dcminy);
shader.setUniformf(gl2, "cminY2", (float) (dcminy - (double) ((float) dcminy)));
shader.setUniformf(gl2, "cmaxX1", (float) dcmaxx);
shader.setUniformf(gl2, "cmaxX2", (float) (dcmaxx - (double) ((float) dcmaxx)));
shader.setUniformf(gl2, "cmaxY1", (float) dcmaxy);
shader.setUniformf(gl2, "cmaxY2", (float) (dcmaxy - (double) ((float) dcmaxy)));
shader.setUniformf(gl2, "juliaImaginary", juliaImaginary);
shader.setUniformf(gl2, "juliaReal", juliaReal);
} else {
shader.setUniform1i(gl2, "width", width);
shader.setUniform1i(gl2, "height", height);
shader.setUniform1i(gl2, "iter", iteration);
shader.setUniformf(gl2, "cminX", cminx);
shader.setUniformf(gl2, "cminY", cminy);
shader.setUniformf(gl2, "cmaxX", cmaxx);
shader.setUniformf(gl2, "cmaxY", cmaxy);
shader.setUniform1i(gl2, "flag", flag);
shader.setUniformf(gl2, "juliaImaginary", juliaImaginary);
shader.setUniformf(gl2, "juliaReal", juliaReal);
}
// Draw an empty quad so the fragments can propagate to the fragment shader
gl2.glBegin(GL2.GL_QUADS);
gl2.glVertex3d(0, 0, 0);
gl2.glVertex3d(1, 0, 0);
gl2.glVertex3d(1, 1, 0);
gl2.glVertex3d(0, 1, 0);
gl2.glEnd();
shader.unbind(gl2);
// iteration ++;
// if (iteration >= 64) iteration = 1;
// canvas.swapBuffers();
}