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renderer.rs
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#[allow(unused_imports)]
use std::{
sync::{Arc, Mutex, atomic::{AtomicBool, Ordering}},
rc::Rc,
cell::RefCell,
};
//use parking_lot::Mutex;
use three_d::*;
use wasm_thread as thread;
use bus::{Bus, BusReader};
use num_format::{Locale, ToFormattedString};
use crate::log; // macro import
use crate::utils::*;
use crate::scene::*;
#[derive(PartialEq)]
enum TdCameraControl { Orbit, Fly }
/// Re-implementation of three_d::OrbitControl to add right mouse button control
pub struct OrbitControl2 {
control: CameraControl,
}
impl OrbitControl2 {
/// Creates a new orbit control with the given target and minimum and maximum distance to the target.
pub fn new(target: Vec3, min_distance: f32, max_distance: f32) -> Self {
Self {
control: CameraControl {
left_drag_horizontal: CameraAction::OrbitLeft { target, speed: 0.1 },
left_drag_vertical: CameraAction::OrbitUp { target, speed: 0.1 },
scroll_vertical: CameraAction::Zoom {
min: min_distance,
max: max_distance,
speed: 0.001,
target,
},
right_drag_horizontal: CameraAction::Left { speed: 0.01 },
right_drag_vertical: CameraAction::Up { speed: 0.01 },
..Default::default()
},
}
}
/// Handles the events. Must be called each frame.
pub fn handle_events(&mut self, camera: &mut Camera, events: &mut [Event]) -> bool {
// need to re-calculate the change so as to translate the target for orbit
let mut change = Vec3::zero();
for event in events.iter() {
match event {
Event::MouseMotion {
delta,
button,
handled,
..
} => {
if let Some(b) = button {
if let MouseButton::Right = b {
if let CameraAction::Left { speed } = &self.control.right_drag_horizontal {
change += -camera.right_direction() * delta.0 * (*speed);
}
if let CameraAction::Up { speed } = &self.control.right_drag_vertical {
let right = camera.right_direction();
let up = right.cross(camera.view_direction());
change += up * delta.1 * (*speed);
}
break;
}
}
}
_ => {}
}
}
if let CameraAction::Zoom { speed, target, .. } = &mut self.control.scroll_vertical {
let x = target.distance(*camera.position());
*speed = 0.001 * x + 0.001;
*target += change;
}
if let CameraAction::OrbitLeft { speed, target } = &mut self.control.left_drag_horizontal {
let x = target.distance(*camera.position());
*speed = 0.01 * x + 0.001;
*target += change;
}
if let CameraAction::OrbitUp { speed, target } = &mut self.control.left_drag_vertical {
let x = target.distance(*camera.position());
*speed = 0.01 * x + 0.001;
*target += change;
}
self.control.handle_events(camera, events)
}
}
#[allow(unused_mut)]
fn launch_sorter_thread(
scene: Arc<Scene>,
mut rx_buffer: BusReader<Vec<u8>>,
mut rx_vp: BusReader<Mat4>,
mut bus_depth: Bus<Vec<u32>>,
cpu_cores: usize,
mut bus_time: Bus<f64>,
) -> thread::JoinHandle<()> {
// launch another thread for view-dependent splat sorting
let thread_handle = thread::spawn({
let mut scene = scene.clone();
move || loop {
// receive splat binary buffer from async JS worker callback
#[cfg(feature = "async_splat_stream")]
if let Ok(buffer) = rx_buffer.try_recv() {
/*
FIXME: scene buffer needs to be duplicated here
since Arc<Scene> does not have an interior mutability without a mutex
(and mutex is not allowed in wasm main thread)
*/
let mut s = Scene::new();
s.buffer = buffer;
s.splat_count = s.buffer.len() / 32; // 32bytes per splat
//s.generate_texture(); // texture is created instead in render loop in main thread
scene = Arc::new(s);
}
// receive view proj matrix from main thread
if let Ok(view_proj) = rx_vp.try_recv() {
let view_proj_slice = &[
view_proj[0][0], view_proj[0][1], view_proj[0][2], view_proj[0][3],
view_proj[1][0], view_proj[1][1], view_proj[1][2], view_proj[1][3],
view_proj[2][0], view_proj[2][1], view_proj[2][2], view_proj[2][3],
view_proj[3][0], view_proj[3][1], view_proj[3][2], view_proj[3][3]
];
let start = get_time_milliseconds();
Scene::sort(&scene, view_proj_slice, &mut bus_depth, cpu_cores);
let sort_time = get_time_milliseconds() - start;
//////////////////////////////////
// non-blocking (i.e., no atomic.wait)
let _ = bus_time.try_broadcast(sort_time);
//////////////////////////////////
}
}
});
thread_handle
}
/*
#[allow(unused_mut)]
fn launch_sorter_thread2(
mut rx_buffer: BusReader<Vec<u8>>,
mut rx_vp: BusReader<Mat4>,
mut bus_depth: Bus<Vec<u32>>,
cpu_cores: usize,
mut bus_time: Bus<f64>,
) -> thread::JoinHandle<()> {
// launch another thread for view-dependent splat sorting
let thread_handle = thread::spawn({
let mut scene = Scene::new();
move || loop {
// receive splat chunk from async JS worker callback
#[cfg(feature = "async_splat_stream")]
if let Ok(chunk) = rx_buffer.try_recv() {
scene.buffer.extend(chunk);
scene.splat_count = scene.buffer.len() / 32; // 32bytes per splat
}
// receive view proj matrix from main thread
if let Ok(view_proj) = rx_vp.try_recv() {
let view_proj_slice = &[
view_proj[0][0], view_proj[0][1], view_proj[0][2], view_proj[0][3],
view_proj[1][0], view_proj[1][1], view_proj[1][2], view_proj[1][3],
view_proj[2][0], view_proj[2][1], view_proj[2][2], view_proj[2][3],
view_proj[3][0], view_proj[3][1], view_proj[3][2], view_proj[3][3]
];
let start = get_time_milliseconds();
Scene::sort2(&scene, view_proj_slice, &mut bus_depth, cpu_cores);
let sort_time = get_time_milliseconds() - start;
//////////////////////////////////
// non-blocking (i.e., no atomic.wait)
let _ = bus_time.try_broadcast(sort_time);
//////////////////////////////////
}
}
});
thread_handle
}
*/
fn create_glsl_program(
gl: &Context,
vs_file: &str,
fs_file: &str,
error_flag: &Arc<AtomicBool>,
error_msg: &Arc<Mutex<String>>
) -> context::Program {
unsafe {
let vert_shader = gl.create_shader(context::VERTEX_SHADER)
.expect("Failed creating vertex shader");
let frag_shader = gl.create_shader(context::FRAGMENT_SHADER)
.expect("Failed creating fragment shader");
gl.shader_source(vert_shader, vs_file);
gl.shader_source(frag_shader, fs_file);
gl.compile_shader(vert_shader);
gl.compile_shader(frag_shader);
let id = gl.create_program()
.expect("Failed creating program");
gl.attach_shader(id, vert_shader);
gl.attach_shader(id, frag_shader);
gl.link_program(id);
if !gl.get_program_link_status(id) {
let log = gl.get_shader_info_log(vert_shader);
if !log.is_empty() {
set_error_for_egui(
error_flag, error_msg,
format!("ERROR: gl.get_program_link_status(): {}", log)
);
}
let log = gl.get_shader_info_log(frag_shader);
if !log.is_empty() {
set_error_for_egui(
error_flag, error_msg,
format!("ERROR: gl.get_program_link_status(): {}", log)
);
}
let log = gl.get_program_info_log(id);
if !log.is_empty() {
set_error_for_egui(
error_flag, error_msg,
format!("ERROR: gl.get_program_link_status(): {}", log)
);
}
//unreachable!();
} else {
gl.detach_shader(id, vert_shader);
gl.detach_shader(id, frag_shader);
gl.delete_shader(vert_shader);
gl.delete_shader(frag_shader);
}
return id;
}
}
struct SplatGLSL {
program: Option<context::Program>,
u_projection: Option<context::UniformLocation>,
u_viewport: Option<context::UniformLocation>,
u_focal: Option<context::UniformLocation>,
u_htan_fov: Option<context::UniformLocation>,
u_view: Option<context::UniformLocation>,
u_cam_pos: Option<context::UniformLocation>,
u_splat_scale: Option<context::UniformLocation>,
vertex_buffer: Option<context::WebBufferKey>,
a_position: u32,
texture: Option<context::WebTextureKey>,
u_splat_texture: Option<context::UniformLocation>,
index_buffer: Option<context::WebBufferKey>,
a_index: u32,
}
impl SplatGLSL {
const VERT_SHADER: &'static str = include_str!("gsplat.vert");
const FRAG_SHADER: &'static str = include_str!("gsplat.frag");
pub fn new() -> Self {
Self {
program: None,
u_projection: None,
u_viewport: None,
u_focal: None,
u_htan_fov: None,
u_view: None,
u_cam_pos: None,
u_splat_scale: None,
vertex_buffer: None,
a_position: 0,
texture: None,
u_splat_texture: None,
index_buffer: None,
a_index: 0,
}
}
pub fn init(
&mut self,
gl: &Context,
error_flag: &Arc<AtomicBool>,
error_msg: &Arc<Mutex<String>>,
scene: &Arc<Scene>
) {
let gsplat_program_id = create_glsl_program(
gl,
Self::VERT_SHADER,
Self::FRAG_SHADER,
error_flag,
error_msg
);
self.program = Some(gsplat_program_id);
log!("SplatGLSL::init(): self.program={:?}", self.program);
unsafe {
gl.use_program(self.program);
{
self.u_projection = gl.get_uniform_location(gsplat_program_id, "projection");
log!("SplatGLSL::init(): self.u_projection={:?}", self.u_projection);
self.u_viewport = gl.get_uniform_location(gsplat_program_id, "viewport");
log!("SplatGLSL::init(): self.u_viewport={:?}", self.u_viewport);
self.u_focal = gl.get_uniform_location(gsplat_program_id, "focal");
log!("SplatGLSL::init(): self.u_focal={:?}", self.u_focal);
self.u_view = gl.get_uniform_location(gsplat_program_id, "view");
log!("SplatGLSL::init(): self.u_view={:?}", self.u_view);
self.u_htan_fov = gl.get_uniform_location(gsplat_program_id, "htan_fov");
log!("SplatGLSL::init(): self.u_htan_fov={:?}", self.u_htan_fov);
self.u_cam_pos = gl.get_uniform_location(gsplat_program_id, "cam_pos");
log!("SplatGLSL::init(): self.u_cam_pos={:?}", self.u_cam_pos);
self.u_splat_scale = gl.get_uniform_location(gsplat_program_id, "splat_scale");
log!("SplatGLSL::init(): self.u_splat_scale={:?}", self.u_splat_scale);
let triangle_vertices = &mut [ // quad
-1_f32, -1.0,
1.0, -1.0,
1.0, 1.0,
-1.0, 1.0,
];
triangle_vertices.iter_mut().for_each(|v| *v *= 2.0);
self.vertex_buffer = Some(gl.create_buffer().unwrap());
log!("SplatGLSL::init(): self.vertex_buffer={:?}", self.vertex_buffer);
gl.bind_buffer(context::ARRAY_BUFFER, self.vertex_buffer);
gl.buffer_data_u8_slice(context::ARRAY_BUFFER, transmute_slice::<_, u8>(triangle_vertices), context::STATIC_DRAW);
self.a_position = gl.get_attrib_location(gsplat_program_id, "position").unwrap();
log!("SplatGLSL::init(): self.a_position={:?}", self.a_position);
gl.enable_vertex_attrib_array(self.a_position);
gl.bind_buffer(context::ARRAY_BUFFER, self.vertex_buffer);
gl.vertex_attrib_pointer_f32(self.a_position, 2, context::FLOAT, false, 0, 0);
self.texture = Some(gl.create_texture().unwrap());
log!("SplatGLSL::init(): self.texture={:?}", self.texture); // WebTextureKey(1v1)
gl.bind_texture(context::TEXTURE_2D, self.texture);
self.u_splat_texture = gl.get_uniform_location(gsplat_program_id, "u_splat_texture");
log!("SplatGLSL::init(): self.u_splat_texture={:?}", self.u_splat_texture);
gl.uniform_1_i32(self.u_splat_texture.as_ref(), 0); // associate the active texture unit with the uniform
// index buffer for instanced rendering
self.index_buffer = Some(gl.create_buffer().unwrap());
log!("SplatGLSL::init(): self.index_buffer={:?}", self.index_buffer);
//gl.bind_buffer(context::ARRAY_BUFFER, self.index_buffer);
self.a_index = gl.get_attrib_location(gsplat_program_id, "index").unwrap();
log!("SplatGLSL::init(): self.a_index={:?}", self.a_index);
gl.enable_vertex_attrib_array(self.a_index);
gl.bind_buffer(context::ARRAY_BUFFER, self.index_buffer);
gl.vertex_attrib_pointer_i32(self.a_index, 1, context::INT, 0, 0);
gl.vertex_attrib_divisor(self.a_index, 1);
}
gl.use_program(None);
gl.bind_texture(context::TEXTURE_2D, self.texture);
gl.tex_parameter_i32(context::TEXTURE_2D, context::TEXTURE_WRAP_S, context::CLAMP_TO_EDGE as i32);
gl.tex_parameter_i32(context::TEXTURE_2D, context::TEXTURE_WRAP_T, context::CLAMP_TO_EDGE as i32);
gl.tex_parameter_i32(context::TEXTURE_2D, context::TEXTURE_MIN_FILTER, context::NEAREST as i32);
gl.tex_parameter_i32(context::TEXTURE_2D, context::TEXTURE_MAG_FILTER, context::NEAREST as i32);
#[cfg(not(feature = "async_splat_stream"))]
gl.tex_image_2d(
context::TEXTURE_2D,
0,
context::RGBA32UI as i32,
scene.tex_width as i32,
scene.tex_height as i32,
0,
context::RGBA_INTEGER,
context::UNSIGNED_INT,
Some(transmute_slice::<_, u8>(scene.tex_data.as_slice()))
);
//gl.active_texture(context::TEXTURE0);
//gl.bind_texture(context::TEXTURE_2D, self.texture);
gl.bind_buffer(context::ARRAY_BUFFER, None);
gl.bind_texture(context::TEXTURE_2D, None);
}
}
pub fn render(
&self,
gl: &Context,
projection_slice: &[f32],
view_slice: &[f32],
focal: &[f32],
viewport: &[f32],
htan_fov: &[f32],
cam_pos: &[f32],
splat_scale: f32,
rx_depth: &mut BusReader<Vec<u32>>,
splat_count: i32
) {
unsafe {
gl.use_program(self.program);
{
gl.disable(context::DEPTH_TEST);
gl.disable(context::CULL_FACE);
//gl.cull_face(context::FRONT);
// FIXME
gl.enable(context::BLEND);
/*
gl.clear_color(0.0, 0.0, 0.0, 1.0);
gl.blend_func(context::SRC_ALPHA, context::ONE_MINUS_SRC_ALPHA);
//gl.blend_func(context::ONE_MINUS_SRC_ALPHA, context::SRC_ALPHA);
*/
/*
//gl.clear_color(0.0, 0.0, 0.0, 0.0);
gl.blend_func_separate(
context::ONE_MINUS_DST_ALPHA,
context::ONE,
context::ONE_MINUS_DST_ALPHA,
context::ONE,
);
gl.blend_equation_separate(context::FUNC_ADD, context::FUNC_ADD);
*/
gl.uniform_matrix_4_f32_slice(self.u_projection.as_ref(), false, projection_slice);
gl.uniform_matrix_4_f32_slice(self.u_view.as_ref(), false, view_slice);
gl.uniform_1_i32(self.u_splat_texture.as_ref(), 0); // associate the active texture unit with the uniform
gl.uniform_2_f32_slice(self.u_focal.as_ref(), focal);
gl.uniform_2_f32_slice(self.u_viewport.as_ref(), viewport);
gl.uniform_2_f32_slice(self.u_htan_fov.as_ref(), htan_fov);
gl.uniform_3_f32_slice(self.u_cam_pos.as_ref(), cam_pos);
gl.uniform_1_f32(self.u_splat_scale.as_ref(), splat_scale);
gl.active_texture(context::TEXTURE0);
gl.bind_texture(context::TEXTURE_2D, self.texture);
gl.enable_vertex_attrib_array(self.a_position);
gl.bind_buffer(context::ARRAY_BUFFER, self.vertex_buffer);
gl.vertex_attrib_pointer_f32(self.a_position, 2, context::FLOAT, false, 0, 0);
gl.enable_vertex_attrib_array(self.a_index);
gl.bind_buffer(context::ARRAY_BUFFER, self.index_buffer);
//////////////////////////////////
// non-blocking (i.e., no atomic.wait)
if let Ok(depth_index) = rx_depth.try_recv() {
gl.buffer_data_u8_slice(
context::ARRAY_BUFFER,
transmute_slice::<_, u8>(depth_index.as_slice()),
context::DYNAMIC_DRAW
);
}
//////////////////////////////////
gl.vertex_attrib_pointer_i32(self.a_index, 1, context::INT, 0, 0);
gl.vertex_attrib_divisor(self.a_index, 1);
gl.draw_arrays_instanced(
context::TRIANGLE_FAN,
0,
4,
splat_count
);
}
gl.use_program(None);
gl.bind_buffer(context::ARRAY_BUFFER, None);
gl.bind_texture(context::TEXTURE_2D, None);
}
}
}
struct QuadGLSL {
// render to texture
pub(crate) framebuffer: Option<context::Framebuffer>,
texture: Option<context::WebTextureKey>,
// textured quad
program: Option<context::Program>,
vao: Option<context::VertexArray>,
vbo: Option<context::WebBufferKey>,
a_position: u32,
u_screen_texture: Option<context::UniformLocation>,
}
impl QuadGLSL {
const VERT_SHADER: &'static str = include_str!("quad.vert");
const FRAG_SHADER: &'static str = include_str!("quad.frag");
const VERTICES: &'static [f32; 18] = &[
// XYZ
-1.0, 1.0, 0.0,
-1.0, -1.0, 0.0,
1.0, -1.0, 0.0,
-1.0, 1.0, 0.0,
1.0, -1.0, 0.0,
1.0, 1.0, 0.0,
];
pub fn new() -> Self {
Self {
framebuffer: None,
texture: None,
program: None,
vao: None,
vbo: None,
a_position: 0,
u_screen_texture: None,
}
}
pub fn init(
&mut self,
gl: &Context,
error_flag: &Arc<AtomicBool>,
error_msg: &Arc<Mutex<String>>,
width: i32,
height: i32
) {
let quad_program_id = create_glsl_program(
gl,
Self::VERT_SHADER,
Self::FRAG_SHADER,
error_flag,
error_msg
);
self.program = Some(quad_program_id);
log!("QuadGLSL::init(): self.program={:?}", self.program);
unsafe {
self.framebuffer = Some(gl.create_framebuffer().unwrap());
log!("QuadGLSL::init(): self.framebuffer={:?}", self.framebuffer);
gl.bind_framebuffer(context::FRAMEBUFFER, self.framebuffer);
{
self.texture = Some(gl.create_texture().unwrap());
log!("QuadGLSL::init(): self.texture={:?}", self.texture);
gl.bind_texture(context::TEXTURE_2D, self.texture);
gl.tex_image_2d(
context::TEXTURE_2D,
0,
context::RGB as i32,
width,
height,
0,
context::RGB,
context::UNSIGNED_BYTE,
None
);
gl.tex_parameter_i32(context::TEXTURE_2D, context::TEXTURE_MIN_FILTER, context::LINEAR as i32);
gl.tex_parameter_i32(context::TEXTURE_2D, context::TEXTURE_MAG_FILTER, context::LINEAR as i32);
gl.framebuffer_texture_2d(
context::FRAMEBUFFER,
context::COLOR_ATTACHMENT0,
context::TEXTURE_2D,
self.texture,
0
);
let status = gl.check_framebuffer_status(context::FRAMEBUFFER);
if status != context::FRAMEBUFFER_COMPLETE {
set_error_for_egui(
error_flag, error_msg,
format!("ERROR: gl.check_framebuffer_status(): {}", status)
);
}
}
gl.bind_framebuffer(context::FRAMEBUFFER, None);
gl.bind_texture(context::TEXTURE_2D, None);
gl.use_program(self.program);
{
self.vao = Some(gl.create_vertex_array().unwrap());
log!("QuadGLSL::init(): self.vao={:?}", self.vao);
gl.bind_vertex_array(self.vao);
self.vbo = Some(gl.create_buffer().unwrap());
log!("QuadGLSL::init(): self.vbo={:?}", self.vbo);
gl.bind_buffer(context::ARRAY_BUFFER, self.vbo);
gl.buffer_data_u8_slice(context::ARRAY_BUFFER, transmute_slice::<_, u8>(Self::VERTICES), context::STATIC_DRAW);
self.a_position = gl.get_attrib_location(quad_program_id, "position").unwrap();
log!("QuadGLSL::init(): self.a_position={:?}", self.a_position);
gl.enable_vertex_attrib_array(self.a_position);
gl.vertex_attrib_pointer_f32(
self.a_position,
3,
context::FLOAT,
false,
3*std::mem::size_of::<f32>() as i32,
0
);
self.u_screen_texture = gl.get_uniform_location(quad_program_id, "u_screen_texture");
log!("QuadGLSL::init(): self.u_screen_texture={:?}", self.u_screen_texture);
gl.uniform_1_i32(self.u_screen_texture.as_ref(), 0); // associate the active texture unit with the uniform
}
gl.use_program(None);
gl.bind_vertex_array(None);
gl.bind_buffer(context::ARRAY_BUFFER, None);
}
}
pub fn render(
&self,
gl: &Context,
) {
unsafe {
gl.use_program(self.program);
{
gl.uniform_1_i32(self.u_screen_texture.as_ref(), 0);
gl.active_texture(context::TEXTURE0);
gl.bind_texture(context::TEXTURE_2D, self.texture);
gl.bind_vertex_array(self.vao);
gl.draw_arrays(context::TRIANGLES, 0, 6);
}
gl.use_program(None);
}
}
}
#[allow(unused_mut)]
pub async fn main() {
let error_flag = Arc::new(AtomicBool::new(false));
let error_msg = Arc::new(Mutex::new(String::new()));
let cpu_cores = cpu_cores() as usize;
log!("main(): cpu_cores={}", cpu_cores);
let canvas_w = get_canvas_width();
let canvas_h = get_canvas_height();
log!("main(): canvas size: {}x{}", canvas_w, canvas_h);
let window = Window::new(WindowSettings {
title: "Gauzilla: 3D Gaussian Splatting in WASM + WebGL".to_string(),
max_size: Some((canvas_w, canvas_h)),
..Default::default()
})
.unwrap();
let gl = window.gl();
log!("main(): OpenGL version: {:?}", gl.version());
let glsl_ver = unsafe { gl.get_parameter_string(context::SHADING_LANGUAGE_VERSION) };
log!("main(): GLSL version: {}", glsl_ver);
let fovy = degrees(45.0);
let mut camera = Camera::new_perspective(
window.viewport(),
get_position(),
get_target(),
get_up(),
fovy,
0.1,//0.2,
10.0,//200.0,
);
let mut orbit_control = OrbitControl2::new(*camera.target(), 1.0, 100.0);
let mut fly_control = FlyControl::new(0.005);
let mut egui_control = TdCameraControl::Orbit;
// lock-free bus for streamed scene buffer (single-send, multi-consumer)
let mut bus_buffer = Bus::<Vec::<u8>>::new(1);
let rx_buffer_threaded = bus_buffer.add_rx();
let mut rx_buffer = bus_buffer.add_rx();
let bus_buffer_rc = Rc::new(RefCell::new(bus_buffer));
// lock-free bus for scene buffer (single-send, single-consumer)
let mut bus_progress = Bus::<f64>::new(10);
let mut rx_progress = bus_progress.add_rx();
let bus_progress_rc = Rc::new(RefCell::new(bus_progress));
let mut url = get_url_param();
if url.is_empty() {
url = "https://huggingface.co/datasets/satyoshi/gauzilla-data/resolve/main/book_store.splat".to_string();
}
log!("main(): url={}", url);
#[cfg(feature = "async_splat_stream")]
let worker_handle = stream_splat_in_worker(bus_buffer_rc, bus_progress_rc, url);
#[cfg(feature = "async_splat_stream")]
//let mut scene = Scene::new();
let mut scene = Arc::new(Scene::new());
#[cfg(not(feature = "async_splat_stream"))]
let scene = Arc::new(load_scene().await);
let mut splat_glsl = SplatGLSL::new();
splat_glsl.init(&gl, &error_flag, &error_msg, &scene);
let mut quad_glsl = QuadGLSL::new();
quad_glsl.init(&gl, &error_flag, &error_msg, canvas_w as i32, canvas_h as i32);
// TODO: implement resize() for change in window size
// lock-free bus for depth_index
let mut bus_depth_threaded = Bus::<Vec<u32>>::new(10);
let mut rx_depth = bus_depth_threaded.add_rx();
// lock-free bus for view_proj_slice
let mut bus_vp = Bus::<Mat4>::new(10);
let rx_vp_threaded: BusReader<Matrix4<f32>> = bus_vp.add_rx();
// lock-free bus for sort_time
let mut bus_time_threaded = Bus::<f64>::new(10);
let mut rx_time = bus_time_threaded.add_rx();
let thread_handle = launch_sorter_thread(
scene.clone(),
rx_buffer_threaded,
rx_vp_threaded,
bus_depth_threaded,
cpu_cores,
bus_time_threaded,
);
/////////////////////////////////////////////////////////////////////////////////
let mut gui = three_d::GUI::new(&gl);
let mut pointer_over_gui = false;
let mut splat_scale = 1_f32;
let mut cam_roll = 0_f32;
let mut prev_cam_roll = 0_f32;
let mut flip_y = true;
let mut frame_prev = get_time_milliseconds();
let mut fps_ma = IncrementalMA::new(100);
let mut sort_time = 0_f64;
let mut sort_time_ma = IncrementalMA::new(100);
let mut send_view_proj: bool = true;
let mut progress = 0_f64;
let mut s_temp = Scene::new();
#[cfg(not(feature = "async_splat_stream"))]
let done_streaming = true;
#[cfg(feature = "async_splat_stream")]
let mut done_streaming = false;
window.render_loop(move |mut frame_input| {
let error_flag = Arc::clone(&error_flag);
let error_msg = Arc::clone(&error_msg);
let now = get_time_milliseconds();
let fps = 1000.0 / (now - frame_prev);
frame_prev = now;
let fps = fps_ma.add(fps);
if !error_flag.load(Ordering::Relaxed) {
/////////////////////////////////////////////////////////////////////////////////////
// receive sort_time from the second thread
if let Ok(f) = rx_time.try_recv() {
sort_time = sort_time_ma.add(f);
}
#[cfg(feature = "async_splat_stream")]
if !done_streaming {
// receive progress from async JS worker callback
if let Ok(pct) = rx_progress.try_recv() {
progress = pct;
}
// receive splat binary buffer from async JS worker callback
if let Ok(buffer) = rx_buffer.try_recv() {
let mut s = Scene::new();
s.buffer = buffer;
s.splat_count = s.buffer.len() / 32; // 32bytes per splat
s.generate_texture();
scene = Arc::new(s);
unsafe {
gl.bind_texture(context::TEXTURE_2D, splat_glsl.texture);
gl.tex_image_2d(
context::TEXTURE_2D,
0,
context::RGBA32UI as i32,
scene.tex_width as i32,
scene.tex_height as i32,
0,
context::RGBA_INTEGER,
context::UNSIGNED_INT,
Some(transmute_slice::<_, u8>(scene.tex_data.as_slice()))
);
}
done_streaming = true;
send_view_proj = true;
}
/*
// receive splat chunk from async JS worker callback
if let Ok(chunk) = rx_buffer.try_recv() {
scene.buffer.extend(chunk);
scene.splat_count = scene.buffer.len() / 32; // 32bytes per splat
}
// FIXME
log!("main(): progress={}", progress);
if progress >= 1.0 {
log!("main(): done streaming");
worker_handle.terminate(); // no longer need to receive buffer
scene.generate_texture();
unsafe {
gl.bind_texture(context::TEXTURE_2D, splat_texture);
gl.tex_image_2d(
context::TEXTURE_2D,
0,
context::RGBA32UI as i32,
scene.tex_width as i32,
scene.tex_height as i32,
0,
context::RGBA_INTEGER,
context::UNSIGNED_INT,
Some(transmute_slice::<_, u8>(scene.tex_data.as_slice()))
);
}
done_streaming = true;
send_view_proj = true;
}
*/
}
/////////////////////////////////////////////////////////////////////////////////////
camera.set_viewport(frame_input.viewport);
for event in frame_input.events.iter() {
send_view_proj = true;
/*
if let Event::MousePress {
button,
position,
modifiers,
..
} = event
{
if *button == MouseButton::Right && !modifiers.ctrl {
log!("right mouse button pressed at {:?}", position);
}
}
*/
/*
if let Event::MouseMotion {
delta,
button,
handled,
..
} = event {
}
*/
}
if !pointer_over_gui {
match egui_control {
TdCameraControl::Orbit => {
orbit_control.handle_events(&mut camera, &mut frame_input.events);
},
TdCameraControl::Fly => {
fly_control.handle_events(&mut camera, &mut frame_input.events);
},
}
}
if flip_y {
//camera.mirror_in_xz_plane(); // FIXME
camera.roll(degrees(180.0));
flip_y = false;
}
if !are_floats_equal(cam_roll, prev_cam_roll, 0.00001) {
camera.roll(degrees(-prev_cam_roll));
camera.roll(degrees(cam_roll));
prev_cam_roll = cam_roll;
}
}
let view_matrix: &Mat4 = camera.view();
let view_slice = &[
view_matrix[0][0], view_matrix[0][1], view_matrix[0][2], view_matrix[0][3],
view_matrix[1][0], view_matrix[1][1], view_matrix[1][2], view_matrix[1][3],
view_matrix[2][0], view_matrix[2][1], view_matrix[2][2], view_matrix[2][3],
view_matrix[3][0], view_matrix[3][1], view_matrix[3][2], view_matrix[3][3]
];
let projection_matrix: &Mat4 = camera.projection();
let projection_slice = &[
projection_matrix[0][0], projection_matrix[0][1], projection_matrix[0][2], projection_matrix[0][3],
projection_matrix[1][0], projection_matrix[1][1], projection_matrix[1][2], projection_matrix[1][3],
projection_matrix[2][0], projection_matrix[2][1], projection_matrix[2][2], projection_matrix[2][3],
projection_matrix[3][0], projection_matrix[3][1], projection_matrix[3][2], projection_matrix[3][3]
];
let w = camera.viewport().width as f32;
let h = camera.viewport().height as f32;
let cam_pos = camera.position();
let fx = 0.5*projection_matrix[0][0]*w;
let fy = -0.5*projection_matrix[1][1]*h;
let htany = (fovy / 2.0).tan() as f32;
let htanx = (htany/h)*w;
//let focal = h / (2.0 * htany); // == fx == -fy
gui.update(
&mut frame_input.events,
frame_input.accumulated_time,
frame_input.viewport,
frame_input.device_pixel_ratio,
|gui_context| {
pointer_over_gui = gui_context.is_using_pointer();//.is_pointer_over_area();
if error_flag.load(Ordering::Relaxed) {
egui::Window::new("Error")
.anchor(egui::Align2::CENTER_CENTER, [0.0, 0.0])
.show(gui_context, |ui| {
{
let mutex = error_msg.lock().unwrap();
ui.colored_label(egui::Color32::RED, &(*mutex))
}
/*
if ui.button("Ok").clicked() {
error_flag.store(false, Ordering::Relaxed);
}
*/
});
} else {
if !done_streaming {
egui::Window::new("Loading...")
.anchor(egui::Align2::CENTER_CENTER, [0.0, 0.0])
.show(gui_context, |ui| {
let progress_bar = egui::ProgressBar::new(progress as f32)
.show_percentage()
.animate(false);
ui.add(progress_bar);
});
} else {
egui::Window::new("Gauzilla")
//.vscroll(true)
.show(gui_context, |ui| {
/*
// TODO: open a PLY file as bytes and process it
if ui.button("Open PLY file").clicked() {
let task = rfd::AsyncFileDialog::new()
.add_filter("ply", &["ply"])
.pick_file();
execute_future(async move {
let file = task.await;
if let Some(f) = file {
let bytes = f.read().await;
match Scene::parse_file_header(bytes) {
Ok((file_header_size, splat_count, mut cursor)) => {
},
Err(s) => set_error_for_egui(
&error_flag, &error_msg, String::from("ERROR: could not open the selected file.\
Choose a correctly formatted PLY file for 3D Gaussian Splatting.")
),
}
}
});
ui.close_menu();
}
*/
egui::Grid::new("my_grid")
.num_columns(2)
.spacing([40.0, 4.0])
.striped(true)
.show(ui, |ui| {
ui.add(egui::Label::new("FPS"));
ui.label(format!("{:.2}", fps));
ui.end_row();
ui.add(egui::Label::new("CPU Sort Time (ms)"));
ui.label(format!("{:.2}", sort_time));
ui.end_row();
ui.add(egui::Label::new("CPU Cores"));
ui.label(format!("{}", cpu_cores));
ui.end_row();
ui.add(egui::Label::new("GL Version"));
ui.label(format!("{:?}", gl.version()));
ui.end_row();
ui.add(egui::Label::new("Splat Count"));