26 lines
626 B
Rust
26 lines
626 B
Rust
use crate::math;
|
|
|
|
pub struct Camera {
|
|
projection: math::Mat4,
|
|
}
|
|
|
|
pub fn get_projection_view_matrix(eye: &math::Vec3, fov: f32, aspect_ratio: f32, near: f32, far: f32) -> math::Mat4 {
|
|
let projection = math::perspective(aspect_ratio, fov, near, far);
|
|
|
|
let view = math::look_at_rh::<f32>(
|
|
&eye,
|
|
&math::vec3(0.0, 0.0, 0.0),
|
|
&math::vec3(0.0, 0.0, 1.0),
|
|
);
|
|
|
|
opengl_to_wgpu_matrix() * projection * view
|
|
}
|
|
|
|
pub fn opengl_to_wgpu_matrix() -> math::Mat4 {
|
|
math::mat4(
|
|
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,
|
|
)
|
|
} |