/** Raytrace one frame. */
private void raytrace() {
double aspect = width / (double) height;
Ray ray = new Ray();
camPos.set(0, -distance, 0);
transform.transform(camPos);
camPos.add(.5, .5, .5);
for (int x = 0; x < width; ++x) {
double rayx = fovTan * aspect * (.5 - ((double) x) / width);
for (int y = 0; y < height; ++y) {
ray.setDefault();
ray.d.set(rayx, 1, fovTan * (.5 - ((double) y) / height));
ray.d.normalize();
transform.transform(ray.d);
ray.o.set(camPos);
raytrace(ray);
ray.color.x = QuickMath.min(1, FastMath.sqrt(ray.color.x));
ray.color.y = QuickMath.min(1, FastMath.sqrt(ray.color.y));
ray.color.z = QuickMath.min(1, FastMath.sqrt(ray.color.z));
backBuffer.setRGB(x, y, Color.getRGB(ray.color));
}
}
}
/**
* Render the minimap
*
* @param world
* @param renderBuffer
* @param selection
*/
public void renderMinimap(
World world, RenderBuffer renderBuffer, ChunkSelectionTracker selection) {
ChunkView view = renderBuffer.getView();
int width = view.width;
int height = view.height;
Graphics g = renderBuffer.getGraphics();
if (world.isEmptyWorld()) {
renderEmpty(g, width, height);
return;
}
g.setColor(Color.white);
g.fillRect(0, 0, width, height);
float[] selectionColor = new float[4];
float[] color = new float[4];
se.llbit.math.Color.getRGBAComponents(Layer.selectionColor, selectionColor);
for (int y = 0; y < height; y++) {
int cz = y + view.iz0;
for (int x = 0; x < width; x++) {
int cx = x + view.ix0;
ChunkPosition pos = ChunkPosition.get(cx, cz);
Chunk chunk = world.getChunk(pos);
if (!chunk.isEmpty()) {
if (selection.isSelected(pos)) {
se.llbit.math.Color.getRGBComponents(chunk.avgColor(), color);
color[0] = color[0] * (1 - selectionColor[3]) + selectionColor[0] * selectionColor[3];
color[1] = color[1] * (1 - selectionColor[3]) + selectionColor[1] * selectionColor[3];
color[2] = color[2] * (1 - selectionColor[3]) + selectionColor[2] * selectionColor[3];
color[3] = 1;
renderBuffer.setRGB(x, y, se.llbit.math.Color.getRGB(color));
} else {
renderBuffer.setRGB(x, y, chunk.avgColor());
}
}
}
}
if (world.havePlayerPos()) renderPlayer(world, g, view, true);
if (world.haveSpawnPos()) renderSpawn(world, g, view, true);
}