private void refreshLimits() {
float minX = Float.POSITIVE_INFINITY;
float maxX = Float.NEGATIVE_INFINITY;
float minY = Float.POSITIVE_INFINITY;
float maxY = Float.NEGATIVE_INFINITY;
float minZ = Float.POSITIVE_INFINITY;
float maxZ = Float.NEGATIVE_INFINITY;
for (Octant o : leaves) {
float octanSize = o.getSize() / 2f;
minX = Math.min(minX, o.getPosX() - octanSize);
maxX = Math.max(maxX, o.getPosX() + octanSize);
minY = Math.min(minY, o.getPosY() - octanSize);
maxY = Math.max(maxY, o.getPosY() + octanSize);
minZ = Math.min(minZ, o.getPosZ() - octanSize);
maxZ = Math.max(maxZ, o.getPosZ() + octanSize);
}
int viewportMinX = Integer.MAX_VALUE;
int viewportMaxX = Integer.MIN_VALUE;
int viewportMinY = Integer.MAX_VALUE;
int viewportMaxY = Integer.MIN_VALUE;
double[] point;
point = drawable.myGluProject(minX, minY, minZ); // bottom far left
viewportMinX = Math.min(viewportMinX, (int) point[0]);
viewportMinY = Math.min(viewportMinY, (int) point[1]);
viewportMaxX = Math.max(viewportMaxX, (int) point[0]);
viewportMaxY = Math.max(viewportMaxY, (int) point[1]);
point = drawable.myGluProject(minX, minY, maxZ); // bottom near left
viewportMinX = Math.min(viewportMinX, (int) point[0]);
viewportMinY = Math.min(viewportMinY, (int) point[1]);
viewportMaxX = Math.max(viewportMaxX, (int) point[0]);
viewportMaxY = Math.max(viewportMaxY, (int) point[1]);
point = drawable.myGluProject(minX, maxY, maxZ); // up near left
viewportMinX = Math.min(viewportMinX, (int) point[0]);
viewportMinY = Math.min(viewportMinY, (int) point[1]);
viewportMaxX = Math.max(viewportMaxX, (int) point[0]);
viewportMaxY = Math.max(viewportMaxY, (int) point[1]);
point = drawable.myGluProject(maxX, minY, maxZ); // bottom near right
viewportMinX = Math.min(viewportMinX, (int) point[0]);
viewportMinY = Math.min(viewportMinY, (int) point[1]);
viewportMaxX = Math.max(viewportMaxX, (int) point[0]);
viewportMaxY = Math.max(viewportMaxY, (int) point[1]);
point = drawable.myGluProject(maxX, minY, minZ); // bottom far right
viewportMinX = Math.min(viewportMinX, (int) point[0]);
viewportMinY = Math.min(viewportMinY, (int) point[1]);
viewportMaxX = Math.max(viewportMaxX, (int) point[0]);
viewportMaxY = Math.max(viewportMaxY, (int) point[1]);
point = drawable.myGluProject(maxX, maxY, minZ); // up far right
viewportMinX = Math.min(viewportMinX, (int) point[0]);
viewportMinY = Math.min(viewportMinY, (int) point[1]);
viewportMaxX = Math.max(viewportMaxX, (int) point[0]);
viewportMaxY = Math.max(viewportMaxY, (int) point[1]);
point = drawable.myGluProject(maxX, maxY, maxZ); // up near right
viewportMinX = Math.min(viewportMinX, (int) point[0]);
viewportMinY = Math.min(viewportMinY, (int) point[1]);
viewportMaxX = Math.max(viewportMaxX, (int) point[0]);
viewportMaxY = Math.max(viewportMaxY, (int) point[1]);
point = drawable.myGluProject(minX, maxY, minZ); // up far left
viewportMinX = Math.min(viewportMinX, (int) point[0]);
viewportMinY = Math.min(viewportMinY, (int) point[1]);
viewportMaxX = Math.max(viewportMaxX, (int) point[0]);
viewportMaxY = Math.max(viewportMaxY, (int) point[1]);
limits.setMinXoctree(minX);
limits.setMaxXoctree(maxX);
limits.setMinYoctree(minY);
limits.setMaxYoctree(maxY);
limits.setMinZoctree(minZ);
limits.setMaxZoctree(maxZ);
limits.setMinXviewport(viewportMinX);
limits.setMaxXviewport(viewportMaxX);
limits.setMinYviewport(viewportMinY);
limits.setMaxYviewport(viewportMaxY);
}
