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refactor cameras. add defaults

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This commit is contained in:
Carter Anderson 2020-03-21 21:55:33 -07:00
parent fb496a6172
commit d2e160d44a
14 changed files with 129 additions and 166 deletions
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8
examples/custom_shader.rs
View file

@ -107,18 +107,12 @@ fn setup(world: &mut World, resources: &mut Resources) {
})
// camera
.add_entity(CameraEntity {
camera: Camera::new(CameraType::Projection {
fov: std::f32::consts::PI / 4.0,
near: 1.0,
far: 1000.0,
aspect_ratio: 1.0,
}),
active_camera: ActiveCamera,
local_to_world: LocalToWorld(Mat4::look_at_rh(
Vec3::new(3.0, 8.0, 5.0),
Vec3::new(0.0, 0.0, 0.0),
Vec3::new(0.0, 0.0, 1.0),
)),
..Default::default()
})
.build();
}

23
examples/entity_builder_comparison.rs
View file

@ -53,12 +53,7 @@ fn create_entities_insert_vec(
world.insert(
(),
vec![(
Camera::new(CameraType::Projection {
fov: std::f32::consts::PI / 4.0,
near: 1.0,
far: 1000.0,
aspect_ratio: 1.0,
}),
Camera::default(),
ActiveCamera,
LocalToWorld(Mat4::look_at_rh(
Vec3::new(3.0, 8.0, 5.0),
@ -103,12 +98,7 @@ fn create_entities_builder_add_component(
.add(Rotation::from_euler_angles(0.0, 0.0, 0.0))
// camera
.build_entity()
.add(Camera::new(CameraType::Projection {
fov: std::f32::consts::PI / 4.0,
near: 1.0,
far: 1000.0,
aspect_ratio: 1.0,
}))
.add(Camera::default())
.add(ActiveCamera)
.add(LocalToWorld(Mat4::look_at_rh(
Vec3::new(3.0, 8.0, 5.0),
@ -137,6 +127,7 @@ fn create_entities_builder_archetype(
.add_entity(MeshEntity {
mesh: cube_handle,
material: cube_material_handle,
translation: Translation::new(0.0, 0.0, 1.0),
..Default::default()
})
// light
@ -146,18 +137,12 @@ fn create_entities_builder_archetype(
})
// camera
.add_entity(CameraEntity {
camera: Camera::new(CameraType::Projection {
fov: std::f32::consts::PI / 4.0,
near: 1.0,
far: 1000.0,
aspect_ratio: 1.0,
}),
active_camera: ActiveCamera,
local_to_world: LocalToWorld(Mat4::look_at_rh(
Vec3::new(3.0, 8.0, 5.0),
Vec3::new(0.0, 0.0, 0.0),
Vec3::new(0.0, 0.0, 1.0),
)),
..Default::default()
})
.build();
}

8
examples/instancing.rs
View file

@ -63,18 +63,12 @@ fn setup(world: &mut World, resources: &mut Resources) {
})
// camera
.add_entity(CameraEntity {
camera: Camera::new(CameraType::Projection {
fov: std::f32::consts::PI / 4.0,
near: 1.0,
far: 1000.0,
aspect_ratio: 1.0,
}),
active_camera: ActiveCamera,
local_to_world: LocalToWorld(Mat4::look_at_rh(
Vec3::new(3.0, 8.0, 5.0),
Vec3::new(0.0, 0.0, 0.0),
Vec3::new(0.0, 0.0, 1.0),
)),
..Default::default()
});
let mut rng = StdRng::from_entropy();

7
examples/instancing_old.rs
View file

@ -50,12 +50,7 @@ fn setup(world: &mut World, resources: &mut Resources) {
vec![
// camera
(
Camera::new(CameraType::Projection {
fov: std::f32::consts::PI / 4.0,
near: 1.0,
far: 1000.0,
aspect_ratio: 1.0,
}),
Camera::default(),
ActiveCamera,
LocalToWorld(Mat4::look_at_rh(
Vec3::new(6.0, -40.0, 20.0),

9
examples/parenting.rs
View file

@ -56,23 +56,16 @@ fn setup(world: &mut World, resources: &mut Resources) {
// light
.add_entity(LightEntity {
translation: Translation::new(4.0, -4.0, 5.0),
rotation: Rotation::from_euler_angles(0.0, 0.0, 0.0),
..Default::default()
})
// camera
.add_entity(CameraEntity {
camera: Camera::new(CameraType::Projection {
fov: std::f32::consts::PI / 4.0,
near: 1.0,
far: 1000.0,
aspect_ratio: 1.0,
}),
active_camera: ActiveCamera,
local_to_world: LocalToWorld(Mat4::look_at_rh(
Vec3::new(5.0, 10.0, 10.0),
Vec3::new(0.0, 0.0, 0.0),
Vec3::new(0.0, 0.0, 1.0),
)),
..Default::default()
})
.build();
}

8
examples/plugin_loading/example_plugin/src/lib.rs
View file

@ -49,18 +49,12 @@ pub fn setup(world: &mut World, resources: &mut Resources) {
})
// camera
.add_entity(CameraEntity {
camera: Camera::new(CameraType::Projection {
fov: std::f32::consts::PI / 4.0,
near: 1.0,
far: 1000.0,
aspect_ratio: 1.0,
}),
active_camera: ActiveCamera,
local_to_world: LocalToWorld(Mat4::look_at_rh(
Vec3::new(3.0, 8.0, 5.0),
Vec3::new(0.0, 0.0, 0.0),
Vec3::new(0.0, 0.0, 1.0),
)),
..Default::default()
})
.build();
}

8
examples/simple.rs
View file

@ -53,18 +53,12 @@ fn setup(world: &mut World, resources: &mut Resources) {
})
// camera
.add_entity(CameraEntity {
camera: Camera::new(CameraType::Projection {
fov: std::f32::consts::PI / 4.0,
near: 1.0,
far: 1000.0,
aspect_ratio: 1.0,
}),
active_camera: ActiveCamera,
local_to_world: LocalToWorld(Mat4::look_at_rh(
Vec3::new(3.0, 8.0, 5.0),
Vec3::new(0.0, 0.0, 0.0),
Vec3::new(0.0, 0.0, 1.0),
)),
..Default::default()
})
.build();
}

8
examples/spawner.rs
View file

@ -63,18 +63,12 @@ fn setup(world: &mut World, resources: &mut Resources) {
})
// camera
.add_entity(CameraEntity {
camera: Camera::new(CameraType::Projection {
fov: std::f32::consts::PI / 4.0,
near: 1.0,
far: 1000.0,
aspect_ratio: 1.0,
}),
active_camera: ActiveCamera,
local_to_world: LocalToWorld(Mat4::look_at_rh(
Vec3::new(3.0, 8.0, 5.0),
Vec3::new(0.0, 0.0, 0.0),
Vec3::new(0.0, 0.0, 1.0),
)),
..Default::default()
});
let mut rng = StdRng::from_entropy();

10
examples/texture.rs
View file

@ -10,7 +10,7 @@ fn setup(world: &mut World, resources: &mut Resources) {
let mut texture_storage = resources.get_mut::<AssetStorage<Texture>>().unwrap();
let texture = Texture::load(TextureType::Png(
concat!(env!("CARGO_MANIFEST_DIR"), "/assets/temp_bevy_logo.png").to_string(),
concat!(env!("CARGO_MANIFEST_DIR"), "/assets/bevy_logo_dark.png").to_string(),
));
let texture_handle = texture_storage.add(texture);
@ -52,18 +52,12 @@ fn setup(world: &mut World, resources: &mut Resources) {
})
// camera
.add_entity(CameraEntity {
camera: Camera::new(CameraType::Projection {
fov: std::f32::consts::PI / 4.0,
near: 1.0,
far: 1000.0,
aspect_ratio: 1.0,
}),
active_camera: ActiveCamera,
local_to_world: LocalToWorld(Mat4::look_at_rh(
Vec3::new(3.0, 8.0, 5.0),
Vec3::new(0.0, 0.0, 0.0),
Vec3::new(0.0, 0.0, 1.0),
)),
..Default::default()
})
.build();
}

18
examples/ui.rs
View file

@ -31,30 +31,16 @@ fn setup(world: &mut World, resources: &mut Resources) {
})
// 3d camera
.add_entity(CameraEntity {
camera: Camera::new(CameraType::Projection {
fov: std::f32::consts::PI / 4.0,
near: 1.0,
far: 1000.0,
aspect_ratio: 1.0,
}),
active_camera: ActiveCamera,
local_to_world: LocalToWorld(Mat4::look_at_rh(
Vec3::new(3.0, 8.0, 5.0),
Vec3::new(0.0, 0.0, 0.0),
Vec3::new(0.0, 0.0, 1.0),
)),
..Default::default()
})
// 2d camera
.add_entity(Camera2dEntity {
camera: Camera::new(CameraType::Orthographic {
left: 0.0,
right: 0.0,
bottom: 0.0,
top: 0.0,
near: 0.0,
far: 1.0,
}),
active_camera_2d: ActiveCamera2d,
..Default::default()
})
// bottom left anchor with vertical fill
.add_entity(UiEntity {

11
examples/ui_bench.rs
View file

@ -25,15 +25,8 @@ fn build_move_system() -> Box<dyn Schedulable> {
fn setup(world: &mut World, _resources: &mut Resources) {
let mut builder = world.build().add_entity(Camera2dEntity {
camera: Camera::new(CameraType::Orthographic {
left: 0.0,
right: 0.0,
bottom: 0.0,
top: 0.0,
near: 0.0,
far: 1.0,
}),
active_camera_2d: ActiveCamera2d,
camera: Camera::new(CameraType::default_orthographic()),
..Default::default()
});
let mut prev = Vec2::default();

11
src/ecs/default_archetypes.rs
View file

@ -35,7 +35,7 @@ pub struct LightEntity {
pub rotation: Rotation,
}
#[derive(EntityArchetype)]
#[derive(EntityArchetype, Default)]
pub struct CameraEntity {
pub camera: Camera,
pub active_camera: ActiveCamera,
@ -48,6 +48,15 @@ pub struct Camera2dEntity {
pub active_camera_2d: ActiveCamera2d,
}
impl Default for Camera2dEntity {
fn default() -> Self {
Camera2dEntity {
camera: Camera::new(CameraType::default_orthographic()),
active_camera_2d: ActiveCamera2d,
}
}
}
#[derive(EntityArchetype)]
pub struct UiEntity {
pub node: Node,

148
src/render/camera.rs
View file

@ -1,25 +1,94 @@
use crate::math::Mat4;
#[derive(Default)]
pub struct ActiveCamera;
#[derive(Default)]
pub struct ActiveCamera2d;
pub enum CameraType {
Projection {
fov: f32,
aspect_ratio: f32,
near: f32,
far: f32,
},
Orthographic {
left: f32,
right: f32,
bottom: f32,
top: f32,
near: f32,
far: f32,
},
pub struct OrthographicCamera {
pub left: f32,
pub right: f32,
pub bottom: f32,
pub top: f32,
pub near: f32,
pub far: f32,
}
impl OrthographicCamera {
fn get_view_matrix(&self) -> Mat4 {
let projection = Mat4::orthographic_rh_gl(
self.left,
self.right,
self.bottom,
self.top,
self.near,
self.far,
);
opengl_to_wgpu_matrix() * projection
}
}
impl Default for OrthographicCamera {
fn default() -> Self {
OrthographicCamera {
left: 0.0,
right: 0.0,
bottom: 0.0,
top: 0.0,
near: 0.0,
far: 1.0,
}
}
}
pub struct PerspectiveCamera {
pub fov: f32,
pub aspect_ratio: f32,
pub near: f32,
pub far: f32,
}
impl PerspectiveCamera {
pub fn get_view_matrix(&self) -> Mat4 {
let projection = Mat4::perspective_rh_gl(self.fov, self.aspect_ratio, self.near, self.far);
opengl_to_wgpu_matrix() * projection
}
}
impl Default for PerspectiveCamera {
fn default() -> Self {
PerspectiveCamera {
fov: std::f32::consts::PI / 4.0,
near: 1.0,
far: 1000.0,
aspect_ratio: 1.0,
}
}
}
pub enum CameraType {
Perspective(PerspectiveCamera),
Orthographic(OrthographicCamera),
}
impl CameraType {
pub fn default_perspective() -> CameraType {
CameraType::Perspective(PerspectiveCamera::default())
}
pub fn default_orthographic() -> CameraType {
CameraType::Orthographic(OrthographicCamera::default())
}
}
impl Default for CameraType {
fn default() -> Self {
CameraType::default_perspective()
}
}
#[derive(Default)]
pub struct Camera {
pub view_matrix: Mat4,
pub camera_type: CameraType,
@ -34,53 +103,20 @@ impl Camera {
}
pub fn update(&mut self, width: u32, height: u32) {
match &mut self.camera_type {
CameraType::Projection {
aspect_ratio,
fov,
near,
far,
} => {
*aspect_ratio = width as f32 / height as f32;
self.view_matrix =
get_perspective_projection_matrix(*fov, *aspect_ratio, *near, *far)
self.view_matrix = match &mut self.camera_type {
CameraType::Perspective(projection) => {
projection.aspect_ratio = width as f32 / height as f32;
projection.get_view_matrix()
}
CameraType::Orthographic {
left,
right,
bottom,
top,
near,
far,
} => {
*right = width as f32;
*top = height as f32;
self.view_matrix =
get_orthographic_projection_matrix(*left, *right, *bottom, *top, *near, *far)
CameraType::Orthographic(orthographic) => {
orthographic.right = width as f32;
orthographic.top = height as f32;
orthographic.get_view_matrix()
}
}
}
}
pub fn get_perspective_projection_matrix(fov: f32, aspect_ratio: f32, near: f32, far: f32) -> Mat4 {
let projection = Mat4::perspective_rh_gl(fov, aspect_ratio, near, far);
opengl_to_wgpu_matrix() * projection
}
pub fn get_orthographic_projection_matrix(
left: f32,
right: f32,
bottom: f32,
top: f32,
near: f32,
far: f32,
) -> Mat4 {
let projection = Mat4::orthographic_rh_gl(left, right, bottom, top, near, far);
opengl_to_wgpu_matrix() * projection
}
pub fn opengl_to_wgpu_matrix() -> Mat4 {
Mat4::from_cols_array(&[
1.0, 0.0, 0.0, 0.0, 0.0, -1.0, 0.0, 0.0, 0.0, 0.0, 0.5, 0.0, 0.0, 0.0, 0.5, 1.0,

18
src/render/light.rs
View file

@ -1,5 +1,5 @@
use super::Color;
use crate::{math, prelude::Translation, render::camera};
use super::{PerspectiveCamera, Color};
use crate::{math, prelude::Translation};
use std::ops::Range;
use zerocopy::{AsBytes, FromBytes};
@ -29,12 +29,14 @@ pub struct LightRaw {
impl LightRaw {
pub fn from(light: &Light, transform: &math::Mat4, translation: &Translation) -> LightRaw {
let proj = camera::get_perspective_projection_matrix(
light.fov,
1.0,
light.depth.start,
light.depth.end,
) * *transform;
let perspective = PerspectiveCamera {
fov: light.fov,
aspect_ratio: 1.0,
near: light.depth.start,
far: light.depth.end,
};
let proj = perspective.get_view_matrix() * *transform;
let (x, y, z) = translation.0.into();
LightRaw {
proj: proj.to_cols_array_2d(),