/** Draws circular particle using a display list. */
public void display(GL gl) {
if (PARTICLE_DISPLAY_LIST < 0) { // MAKE DISPLAY LIST:
int displayListIndex = gl.glGenLists(1);
gl.glNewList(displayListIndex, GL.GL_COMPILE);
drawParticle(gl, new Point3d(), radius); // /particle at origin
gl.glEndList();
System.out.println("MADE LIST " + displayListIndex + " : " + gl.glIsList(displayListIndex));
PARTICLE_DISPLAY_LIST = displayListIndex;
}
// / COLOR: DEFAULT WHITE; GREEN IF HIGHLIGHTED; ADD RED IF PINNED
Color3f c = new Color3f(1, 1, 1); // default: white
if (pin) {
c.x = 1f; // add red
c.y *= 0.2f;
c.z = 0;
}
if (highlight) {
c.y = 1;
c.z = 0;
}
if (GooParticle.class.isInstance(this)) {
c.x = 0;
c.y = 0;
// now its blue
}
gl.glColor3f(c.x, c.y, c.z);
// / DRAW ORIGIN-CIRCLE TRANSLATED TO "p":
gl.glPushMatrix();
gl.glTranslated(x.x, x.y, x.z);
gl.glCallList(PARTICLE_DISPLAY_LIST);
gl.glPopMatrix();
}
/**
* Renders the tile to the given context, in the process building all needed resources.
*
* @param gl
*/
public void render(GL gl) {
projection = ProjectionFactory.getCurrentProjection();
heightmap = State.getInstance().getLoadedHeightmap();
// BUILD TEXTURES IF NECESSARY
if (!gl.glIsTexture(textureID)) {
textureID = createTexture(gl, getImage(), false);
// prerenderToTexture(gl);
}
if (!gl.glIsTexture(grainTextureID)) {
createGrainTexture(gl);
}
// RENDER TILE FROM DISPLAY LIST, OR ELSE BUILD DISPLAY LIST
if (gl.glIsList(displaylistID)) {
gl.glCallList(displaylistID);
} else {
displaylistID = gl.glGenLists(1);
gl.glNewList(displaylistID, GL_COMPILE_AND_EXECUTE);
gl.glActiveTexture(GL_TEXTURE0);
gl.glEnable(GL_TEXTURE_2D);
gl.glBindTexture(GL_TEXTURE_2D, grainTextureID);
gl.glActiveTexture(GL_TEXTURE1);
gl.glEnable(GL_TEXTURE_2D);
gl.glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);
gl.glBindTexture(GL_TEXTURE_2D, textureID);
gl.glColor3f(1, 1, 1);
float[] color = new float[3];
float hRes = HEIGHT_RESOLUTION - 1;
float stepSize = bounds.getWidth() / hRes;
Coordinates pos = new Coordinates();
for (int x = 0; x < hRes; x++) {
gl.glBegin(GL_TRIANGLE_STRIP);
for (int y = 0; y <= hRes; y++) {
for (int i = 0; i < 2; i++) {
pos.setLatitude(bounds.getTop() + y * stepSize);
pos.setLongitude(bounds.getLeft() + (x + i) * stepSize);
gl.glMultiTexCoord2f(
GL_TEXTURE0, (x + i) / (float) GRAIN_RESOLUTION, y / (float) GRAIN_RESOLUTION);
gl.glMultiTexCoord2f(GL_TEXTURE1, (x + i) / hRes, y / hRes);
float height = heights[x + HEIGHT_BORDER + i][y + HEIGHT_BORDER];
getHeightColor(color, height);
float shade = getShade(x + i, y, stepSize);
gl.glColor3f(color[0] * shade, color[1] * shade, color[2] * shade);
gl.glVertex3f(pos.getLongitude(), pos.getLatitude(), height);
}
}
gl.glEnd();
}
gl.glDisable(GL_TEXTURE_2D);
gl.glActiveTexture(GL_TEXTURE0);
renderPOIs(gl);
gl.glEndList();
}
}
/**
* We want to draw the scene using a display list to make it fast when using the IDENT style
* (i.e., avoid recomputing all the face colours)
*
* @param drawable
* @param style
*/
private void draw(GLAutoDrawable drawable, DrawStyle style) {
GL gl = drawable.getGL();
if (listID != -1) {
gl.glCallList(listID);
} else {
listID = gl.glGenLists(1);
gl.glNewList(listID, GL.GL_COMPILE_AND_EXECUTE);
scene.draw(drawable, style);
gl.glEndList();
}
}
public void render(int callListNum) {
gl.glCallList(callListNum);
}