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Copy pathlights.rs
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107 lines (90 loc) · 3.22 KB
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use processing_glfw::GlfwContext;
use bevy::math::Vec3;
use processing::prelude::*;
use processing_render::render::command::DrawCommand;
fn main() {
match sketch() {
Ok(_) => {
eprintln!("Sketch completed successfully");
exit(0).unwrap();
}
Err(e) => {
eprintln!("Sketch error: {:?}", e);
exit(1).unwrap();
}
};
}
fn sketch() -> error::Result<()> {
let mut glfw_ctx = GlfwContext::new(400, 400, false)?;
init(Config::default())?;
let width = 400;
let height = 400;
let surface = glfw_ctx.create_surface(width, height, false)?;
let graphics = graphics_create(surface, width, height, TextureFormat::Rgba16Float)?;
let box_geo = geometry_box(100.0, 100.0, 100.0)?;
let pbr_mat = material_create_pbr()?;
material_set(pbr_mat, "roughness", shader_value::ShaderValue::Float(0.0))?;
// We will only declare lights in `setup`
// rather than calling some sort of `light()` method inside of `draw`
// create a directional light
let _dir_light =
light_create_directional(graphics, bevy::color::Color::srgb(0.35, 0.25, 0.5), 500.0)?;
// create a point light
let point_light_a = light_create_point(
graphics,
bevy::color::Color::srgb(1.0, 0.5, 0.25),
1_000_000.0,
200.0,
0.5,
)?;
transform_set_position(point_light_a, Vec3::new(-25.0, 5.0, 51.0))?;
transform_look_at(point_light_a, Vec3::new(0.0, 0.0, 0.0))?;
// create another point light
let point_light_b = light_create_point(
graphics,
bevy::color::Color::srgb(0.0, 0.5, 0.75),
2_000_000.0,
200.0,
0.25,
)?;
transform_set_position(point_light_b, Vec3::new(0.0, 5.0, 50.5))?;
transform_look_at(point_light_b, Vec3::new(0.0, 0.0, 0.0))?;
// and a spot light, too!
let spot_light = light_create_spot(
graphics,
bevy::color::Color::srgb(0.25, 0.8, 0.19),
15.0 * 1_000_000.0,
200.0,
0.84,
0.0,
core::f32::consts::FRAC_PI_4,
)?;
transform_set_position(spot_light, Vec3::new(40.0, 0.0, 70.0))?;
transform_look_at(spot_light, Vec3::new(0.0, 0.0, 0.0))?;
graphics_mode_3d(graphics)?;
transform_set_position(graphics, Vec3::new(100.0, 100.0, 300.0))?;
transform_look_at(graphics, Vec3::new(0.0, 0.0, 0.0))?;
let mut angle = 0.0;
while glfw_ctx.poll_events() {
graphics_begin_draw(graphics)?;
graphics_record_command(
graphics,
DrawCommand::BackgroundColor(bevy::color::Color::srgb(0.18, 0.20, 0.15)),
)?;
graphics_record_command(graphics, DrawCommand::Fill(bevy::color::Color::WHITE))?;
graphics_record_command(graphics, DrawCommand::Material(pbr_mat))?;
graphics_record_command(graphics, DrawCommand::PushMatrix)?;
graphics_record_command(
graphics,
DrawCommand::Rotate {
angle,
axis: Vec3::Z,
},
)?;
graphics_record_command(graphics, DrawCommand::Geometry(box_geo))?;
graphics_record_command(graphics, DrawCommand::PopMatrix)?;
graphics_end_draw(graphics)?;
angle += 0.02;
}
Ok(())
}