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use cuneus::compute::*;
use cuneus::prelude::*;
cuneus::uniform_params! {
struct LegoParams {
brick_scale: f32,
lightdir_x: f32,
lightdir_y: f32,
grain: f32,
gamma: f32,
shadow_str: f32,
shadow_dist: f32,
ao_str: f32,
spec_pow: f32,
spec_str: f32,
edge_enh: f32,
stud_h: f32,
base_h: f32,
rim_str: f32,
res_scale_mult: f32,
stud_h_mult: f32,
light_r: f32,
light_g: f32,
light_b: f32,
depth_scale: f32,
edge_blend: f32,
_pad: f32,
_pad2: f32,
_pad3: f32}
}
struct LegoShader {
base: RenderKit,
compute_shader: ComputeShader,
current_params: LegoParams}
impl ShaderManager for LegoShader {
fn init(core: &Core) -> Self {
let initial_params = LegoParams {
brick_scale: 0.01,
lightdir_x: 0.8,
lightdir_y: 0.6,
grain: 0.04,
gamma: 0.4,
shadow_str: 0.5,
shadow_dist: 1.25,
ao_str: 0.85,
spec_pow: 12.0,
spec_str: 0.3,
edge_enh: 0.15,
stud_h: 0.045,
base_h: 0.2,
rim_str: 0.5,
res_scale_mult: 0.2,
stud_h_mult: 1.0,
light_r: 0.8,
light_g: 0.75,
light_b: 0.7,
depth_scale: 0.85,
edge_blend: 0.3,
_pad: 0.0,
_pad2: 0.0,
_pad3: 0.0};
let base = RenderKit::new(core);
let config = ComputeShader::builder()
.with_entry_point("main_image")
.with_channels(1)
.with_custom_uniforms::<LegoParams>()
.with_workgroup_size([16, 16, 1])
.with_texture_format(COMPUTE_TEXTURE_FORMAT_RGBA16)
.with_label("LEGO Effect")
.build();
let compute_shader = cuneus::compute_shader!(core, "shaders/lego.wgsl", config);
compute_shader.set_custom_params(initial_params, &core.queue);
Self {
base,
compute_shader,
current_params: initial_params}
}
fn update(&mut self, core: &Core) {
self.base.update_current_texture(core, &core.queue);
if let Some(texture_manager) = self.base.get_current_texture_manager() {
self.compute_shader.update_channel_texture(
0,
&texture_manager.view,
&texture_manager.sampler,
&core.device,
&core.queue,
);
}
let current_time = self.base.controls.get_time(&self.base.start_time);
let delta = 1.0 / 60.0;
self.compute_shader
.set_time(current_time, delta, &core.queue);
self.compute_shader.handle_export(core, &mut self.base);
}
fn resize(&mut self, core: &Core) {
self.base.default_resize(core, &mut self.compute_shader);
}
fn render(&mut self, core: &Core) -> Result<(), cuneus::SurfaceError> {
let mut frame = self.base.begin_frame(core)?;
let mut params = self.current_params;
let mut changed = false;
let mut should_start_export = false;
let mut export_request = self.base.export_manager.get_ui_request();
let mut controls_request = self
.base
.controls
.get_ui_request(&self.base.start_time, &core.size, self.base.fps_tracker.fps());
let using_video_texture = self.base.using_video_texture;
let using_hdri_texture = self.base.using_hdri_texture;
let using_webcam_texture = self.base.using_webcam_texture;
let video_info = self.base.get_video_info();
let hdri_info = self.base.get_hdri_info();
let webcam_info = self.base.get_webcam_info();
let current_fps = self.base.fps_tracker.fps();
let full_output = if self.base.key_handler.show_ui {
self.base.render_ui(core, |ctx| {
RenderKit::apply_default_style(ctx);
egui::Window::new("LEGO Effect")
.collapsible(true)
.resizable(true)
.default_width(320.0)
.show(ctx, |ui| {
ShaderControls::render_media_panel(
ui,
&mut controls_request,
using_video_texture,
video_info,
using_hdri_texture,
hdri_info,
using_webcam_texture,
webcam_info,
);
ui.separator();
egui::CollapsingHeader::new("Brick Geom")
.default_open(true)
.show(ui, |ui| {
changed |= ui
.add(
egui::Slider::new(&mut params.brick_scale, 0.005..=0.05)
.text("Scale"),
)
.changed();
changed |= ui
.add(
egui::Slider::new(&mut params.stud_h, 0.01..=0.1)
.text("Stud H"),
)
.changed();
changed |= ui
.add(
egui::Slider::new(&mut params.base_h, 0.05..=0.3)
.text("Base H"),
)
.changed();
changed |= ui
.add(
egui::Slider::new(&mut params.stud_h_mult, 1.0..=12.0)
.text("Stud Mult"),
)
.changed();
});
egui::CollapsingHeader::new("Lighting")
.default_open(false)
.show(ui, |ui| {
changed |= ui
.add(
egui::Slider::new(&mut params.lightdir_x, -1.0..=1.0)
.text("Dir X"),
)
.changed();
changed |= ui
.add(
egui::Slider::new(&mut params.lightdir_y, -1.0..=1.0)
.text("Dir Y"),
)
.changed();
ui.label("Light Color");
let mut color = [params.light_r, params.light_g, params.light_b];
if ui.color_edit_button_rgb(&mut color).changed() {
params.light_r = color[0];
params.light_g = color[1];
params.light_b = color[2];
changed = true;
}
changed |= ui
.add(
egui::Slider::new(&mut params.spec_pow, 2.0..=50.0)
.text("Spec Pow"),
)
.changed();
changed |= ui
.add(
egui::Slider::new(&mut params.spec_str, 0.0..=1.0)
.text("Spec Str"),
)
.changed();
changed |= ui
.add(
egui::Slider::new(&mut params.rim_str, 0.0..=1.0)
.text("Rim Str"),
)
.changed();
});
egui::CollapsingHeader::new("Shadows & AO")
.default_open(false)
.show(ui, |ui| {
changed |= ui
.add(
egui::Slider::new(&mut params.shadow_str, 0.0..=1.0)
.text("Shd Str"),
)
.changed();
changed |= ui
.add(
egui::Slider::new(&mut params.shadow_dist, 0.1..=3.0)
.text("Shd Dist"),
)
.changed();
changed |= ui
.add(
egui::Slider::new(&mut params.ao_str, 0.5..=1.5)
.text("AO Cntrst"),
)
.changed();
});
egui::CollapsingHeader::new("Post-FX")
.default_open(false)
.show(ui, |ui| {
changed |= ui
.add(
egui::Slider::new(&mut params.edge_enh, 0.0..=0.5)
.text("Edge Enh"),
)
.changed();
changed |= ui
.add(
egui::Slider::new(&mut params.edge_blend, 0.01..=0.3)
.text("Edge Blend"),
)
.changed();
changed |= ui
.add(
egui::Slider::new(&mut params.grain, 0.0..=0.1)
.text("Grain"),
)
.changed();
changed |= ui
.add(
egui::Slider::new(&mut params.gamma, 0.1..=1.4)
.text("Gamma"),
)
.changed();
});
egui::CollapsingHeader::new("Advanced")
.default_open(false)
.show(ui, |ui| {
changed |= ui
.add(
egui::Slider::new(&mut params.res_scale_mult, 0.01..=2.0)
.text("Res Scale"),
)
.changed();
changed |= ui
.add(
egui::Slider::new(&mut params.depth_scale, 0.5..=1.0)
.text("Depth Scl"),
)
.changed();
});
ui.separator();
ShaderControls::render_controls_widget(ui, &mut controls_request);
ui.separator();
should_start_export =
ExportManager::render_export_ui_widget(ui, &mut export_request);
ui.separator();
ui.label(format!(
"Resolution: {}x{}",
core.size.width, core.size.height
));
ui.label(format!("FPS: {current_fps:.1}"));
});
})
} else {
self.base.render_ui(core, |_ctx| {})
};
self.base.apply_media_requests(core, &controls_request);
self.base.export_manager.apply_ui_request(export_request);
if should_start_export {
self.base.export_manager.start_export();
}
if changed {
self.current_params = params;
self.compute_shader.set_custom_params(params, &core.queue);
}
self.compute_shader.dispatch_stage(&mut frame.encoder, core, 0);
self.base.renderer.render_to_view(&mut frame.encoder, &frame.view, &self.compute_shader.get_output_texture().bind_group);
self.base.end_frame(core, frame, full_output);
Ok(())
}
fn handle_input(&mut self, core: &Core, event: &WindowEvent) -> bool {
self.base.default_handle_input(core, event)
}
}
fn main() -> Result<(), Box<dyn std::error::Error>> {
cuneus::gst::init()?;
env_logger::init();
let (app, event_loop) = ShaderApp::new("LEGO Effect", 1280, 720);
app.run(event_loop, LegoShader::init)
}