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This commit is contained in:
Bruce Mitchener 2018-09-25 10:07:53 +07:00 committed by Sébastien Crozet
parent 8bd6be8fe1
commit 96a2a56800
2 changed files with 34 additions and 34 deletions
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54
nalgebra-glm/src/ext/matrix_projection.rs
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@ -5,9 +5,9 @@ use aliases::{TVec2, TVec3, TVec4, TMat4};
/// Define a picking region.
///
/// # Parameters
/// * `center`: Specify the center of a picking region in window coordinates.
/// * `delta`: Specify the width and height, respectively, of the picking region in window coordinates.
/// * `viewport`: Rendering viewport
/// * `center`: Specify the center of a picking region in window coordinates.
/// * `delta`: Specify the width and height, respectively, of the picking region in window coordinates.
/// * `viewport`: Rendering viewport
pub fn pick_matrix<N: Real>(center: &TVec2<N>, delta: &TVec2<N>, viewport: &TVec4<N>) -> TMat4<N> {
let shift = TVec3::new(
(viewport.z - (center.x - viewport.x) * na::convert(2.0)) / delta.x,
@ -22,10 +22,10 @@ pub fn pick_matrix<N: Real>(center: &TVec2<N>, delta: &TVec2<N>, viewport: &TVec
/// Map the specified object coordinates `(obj.x, obj.y, obj.z)` into window coordinates using OpenGL near and far clip planes definition.
///
/// # Parameters
/// * `obj`: Specify the object coordinates.
/// * `model`: Specifies the current modelview matrix.
/// * `proj`: Specifies the current projection matrix.
/// * `viewport`: Specifies the current viewport.
/// * `obj`: Specify the object coordinates.
/// * `model`: Specifies the current modelview matrix.
/// * `proj`: Specifies the current projection matrix.
/// * `viewport`: Specifies the current viewport.
pub fn project<N: Real>(obj: &TVec3<N>, model: &TMat4<N>, proj: &TMat4<N>, viewport: TVec4<N>) -> TVec3<N> {
project_no(obj, model, proj, viewport)
}
@ -35,10 +35,10 @@ pub fn project<N: Real>(obj: &TVec3<N>, model: &TMat4<N>, proj: &TMat4<N>, viewp
/// The near and far clip planes correspond to z normalized device coordinates of -1 and +1 respectively. (OpenGL clip volume definition)
///
/// # Parameters
/// * `obj`: Specify the object coordinates.
/// * `model`: Specifies the current modelview matrix.
/// * `proj`: Specifies the current projection matrix.
/// * `viewport`: Specifies the current viewport.
/// * `obj`: Specify the object coordinates.
/// * `model`: Specifies the current modelview matrix.
/// * `proj`: Specifies the current projection matrix.
/// * `viewport`: Specifies the current viewport.
pub fn project_no<N: Real>(obj: &TVec3<N>, model: &TMat4<N>, proj: &TMat4<N>, viewport: TVec4<N>) -> TVec3<N> {
let proj = project_zo(obj, model, proj, viewport);
TVec3::new(proj.x, proj.y, proj.z * na::convert(0.5) + na::convert(0.5))
@ -49,10 +49,10 @@ pub fn project_no<N: Real>(obj: &TVec3<N>, model: &TMat4<N>, proj: &TMat4<N>, vi
/// The near and far clip planes correspond to z normalized device coordinates of 0 and +1 respectively. (Direct3D clip volume definition)
///
/// # Parameters
/// * `obj`: Specify the object coordinates.
/// * `model`: Specifies the current modelview matrix.
/// * `proj`: Specifies the current projection matrix.
/// * `viewport`: Specifies the current viewport.
/// * `obj`: Specify the object coordinates.
/// * `model`: Specifies the current modelview matrix.
/// * `proj`: Specifies the current projection matrix.
/// * `viewport`: Specifies the current viewport.
pub fn project_zo<N: Real>(obj: &TVec3<N>, model: &TMat4<N>, proj: &TMat4<N>, viewport: TVec4<N>) -> TVec3<N> {
let normalized = proj * model * TVec4::new(obj.x, obj.y, obj.z, N::one());
let scale = N::one() / normalized.w;
@ -67,10 +67,10 @@ pub fn project_zo<N: Real>(obj: &TVec3<N>, model: &TMat4<N>, proj: &TMat4<N>, vi
/// Map the specified window coordinates (win.x, win.y, win.z) into object coordinates using OpenGL near and far clip planes definition.
///
/// # Parameters
/// * `obj`: Specify the window coordinates to be mapped.
/// * `model`: Specifies the current modelview matrix.
/// * `proj`: Specifies the current projection matrix.
/// * `viewport`: Specifies the current viewport.
/// * `obj`: Specify the window coordinates to be mapped.
/// * `model`: Specifies the current modelview matrix.
/// * `proj`: Specifies the current projection matrix.
/// * `viewport`: Specifies the current viewport.
pub fn unproject<N: Real>(win: &TVec3<N>, model: &TMat4<N>, proj: &TMat4<N>, viewport: TVec4<N>) -> TVec3<N> {
unproject_no(win, model, proj, viewport)
}
@ -80,10 +80,10 @@ pub fn unproject<N: Real>(win: &TVec3<N>, model: &TMat4<N>, proj: &TMat4<N>, vie
/// The near and far clip planes correspond to z normalized device coordinates of -1 and +1 respectively. (OpenGL clip volume definition)
///
/// # Parameters
/// * `obj`: Specify the window coordinates to be mapped.
/// * `model`: Specifies the current modelview matrix.
/// * `proj`: Specifies the current projection matrix.
/// * `viewport`: Specifies the current viewport.
/// * `obj`: Specify the window coordinates to be mapped.
/// * `model`: Specifies the current modelview matrix.
/// * `proj`: Specifies the current projection matrix.
/// * `viewport`: Specifies the current viewport.
pub fn unproject_no<N: Real>(win: &TVec3<N>, model: &TMat4<N>, proj: &TMat4<N>, viewport: TVec4<N>) -> TVec3<N> {
let _2: N = na::convert(2.0);
let transform = (proj * model).try_inverse().unwrap_or(TMat4::zeros());
@ -103,10 +103,10 @@ pub fn unproject_no<N: Real>(win: &TVec3<N>, model: &TMat4<N>, proj: &TMat4<N>,
/// The near and far clip planes correspond to z normalized device coordinates of 0 and +1 respectively. (Direct3D clip volume definition)
///
/// # Parameters
/// * `obj`: Specify the window coordinates to be mapped.
/// * `model`: Specifies the current modelview matrix.
/// * `proj`: Specifies the current projection matrix.
/// * `viewport`: Specifies the current viewport.
/// * `obj`: Specify the window coordinates to be mapped.
/// * `model`: Specifies the current modelview matrix.
/// * `proj`: Specifies the current projection matrix.
/// * `viewport`: Specifies the current viewport.
pub fn unproject_zo<N: Real>(win: &TVec3<N>, model: &TMat4<N>, proj: &TMat4<N>, viewport: TVec4<N>) -> TVec3<N> {
let _2: N = na::convert(2.0);
let transform = (proj * model).try_inverse().unwrap_or(TMat4::zeros());

14
nalgebra-glm/src/gtx/rotate_normalized_axis.rs
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@ -5,9 +5,9 @@ use aliases::{Qua, TMat4, TVec3};
/// Builds a rotation 4 * 4 matrix created from a normalized axis and an angle.
///
/// # Parameters
/// * `m` - Input matrix multiplied by this rotation matrix.
/// * `angle` - Rotation angle expressed in radians.
/// * `axis` - Rotation axis, must be normalized.
/// * `m` - Input matrix multiplied by this rotation matrix.
/// * `angle` - Rotation angle expressed in radians.
/// * `axis` - Rotation axis, must be normalized.
pub fn rotate_normalized_axis<N: Real>(m: &TMat4<N>, angle: N, axis: &TVec3<N>) -> TMat4<N> {
m * Rotation3::from_axis_angle(&Unit::new_unchecked(*axis), angle).to_homogeneous()
}
@ -15,9 +15,9 @@ pub fn rotate_normalized_axis<N: Real>(m: &TMat4<N>, angle: N, axis: &TVec3<N>)
/// Rotates a quaternion from a vector of 3 components normalized axis and an angle.
///
/// # Parameters
/// * `q` - Source orientation
/// * `angle` - Angle expressed in radians.
/// * `axis` - Normalized axis of the rotation, must be normalized.
/// * `q` - Source orientation
/// * `angle` - Angle expressed in radians.
/// * `axis` - Normalized axis of the rotation, must be normalized.
pub fn quat_rotate_normalized_axis<N: Real>(q: &Qua<N>, angle: N, axis: &TVec3<N>) -> Qua<N> {
q * UnitQuaternion::from_axis_angle(&Unit::new_unchecked(*axis), angle).unwrap()
}
}