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actually normalize planes

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This commit is contained in:
griffi-gh 2023-01-18 02:52:06 +01:00
parent 946ce319ab
commit ec3065d198
1 changed files with 17 additions and 8 deletions
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25
src/game/camera.rs
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@ -13,6 +13,15 @@ pub fn calculate_forward_direction(yaw: f32, pitch: f32) -> [f32; 3] {
]
}
fn normalize_plane(mut plane: [f32; 4]) -> [f32; 4] {
let mag = (plane[0] * plane[0] + plane[1] * plane[1] + plane[2] * plane[2]).sqrt();
plane[0] = plane[0] / mag;
plane[1] = plane[1] / mag;
plane[2] = plane[2] / mag;
plane[3] = plane[3] / mag;
plane
}
pub struct Camera {
pub yaw: f32,
pub pitch: f32,
@ -88,14 +97,7 @@ impl Camera {
pub fn frustum_planes(&self, normalized: bool) -> [[f32; 4]; 6] {
let mut p_planes = [[0.0_f32; 4]; 6];
let matrix = self.perspective_matrix;
fn normalize_plane(mut plane: [f32; 4]) -> [f32; 4] {
let mag = (plane[0] * plane[0] + plane[1] * plane[1] + plane[2] * plane[2]).sqrt();
plane[0] = plane[0] / mag;
plane[1] = plane[1] / mag;
plane[2] = plane[2] / mag;
plane[3] = plane[3] / mag;
plane
}
// Left clipping plane
p_planes[0][0] = matrix[3][0] + matrix[0][0];
p_planes[0][1] = matrix[3][1] + matrix[0][1];
@ -127,6 +129,13 @@ impl Camera {
p_planes[5][2] = matrix[3][2] - matrix[3][2];
p_planes[5][3] = matrix[3][3] - matrix[3][3];
//Normalize planes
if normalized {
for plane in &mut p_planes {
*plane = normalize_plane(*plane);
}
}
p_planes
}