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path: root/src/dynamics/solver/velocity_ground_constraint_wide.rs
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Diffstat (limited to 'src/dynamics/solver/velocity_ground_constraint_wide.rs')
-rw-r--r--src/dynamics/solver/velocity_ground_constraint_wide.rs27
1 files changed, 20 insertions, 7 deletions
diff --git a/src/dynamics/solver/velocity_ground_constraint_wide.rs b/src/dynamics/solver/velocity_ground_constraint_wide.rs
index ec9e186..18e9257 100644
--- a/src/dynamics/solver/velocity_ground_constraint_wide.rs
+++ b/src/dynamics/solver/velocity_ground_constraint_wide.rs
@@ -86,10 +86,23 @@ impl WVelocityGroundConstraint {
let linvel2 = Vector::from(array![|ii| rbs2[ii].linvel; SIMD_WIDTH]);
let angvel2 = AngVector::<SimdFloat>::from(array![|ii| rbs2[ii].angvel; SIMD_WIDTH]);
- let position1 = Isometry::from(array![|ii| rbs1[ii].position; SIMD_WIDTH]);
- let position2 = Isometry::from(array![|ii| rbs2[ii].position; SIMD_WIDTH]);
+ let pos1 = Isometry::from(array![|ii| rbs1[ii].position; SIMD_WIDTH]);
+ let pos2 = Isometry::from(array![|ii| rbs2[ii].position; SIMD_WIDTH]);
- let force_dir1 = position1
+ let delta1 = Isometry::from(
+ array![|ii| if flipped[ii] { manifolds[ii].delta2 } else { manifolds[ii].delta1 }; SIMD_WIDTH],
+ );
+ let delta2 = Isometry::from(
+ array![|ii| if flipped[ii] { manifolds[ii].delta1 } else { manifolds[ii].delta2 }; SIMD_WIDTH],
+ );
+
+ let coll_pos1 = pos1 * delta1;
+ let coll_pos2 = pos2 * delta2;
+
+ let world_com1 = Point::from(array![|ii| rbs1[ii].world_com; SIMD_WIDTH]);
+ let world_com2 = Point::from(array![|ii| rbs2[ii].world_com; SIMD_WIDTH]);
+
+ let force_dir1 = coll_pos1
* -Vector::from(
array![|ii| if flipped[ii] { manifolds[ii].local_n2 } else { manifolds[ii].local_n1 }; SIMD_WIDTH],
);
@@ -117,11 +130,11 @@ impl WVelocityGroundConstraint {
};
for k in 0..num_points {
- let p1 = position1
+ let p1 = coll_pos1
* Point::from(
array![|ii| if flipped[ii] { manifold_points[ii][k].local_p2 } else { manifold_points[ii][k].local_p1 }; SIMD_WIDTH],
);
- let p2 = position2
+ let p2 = coll_pos2
* Point::from(
array![|ii| if flipped[ii] { manifold_points[ii][k].local_p1 } else { manifold_points[ii][k].local_p2 }; SIMD_WIDTH],
);
@@ -130,8 +143,8 @@ impl WVelocityGroundConstraint {
let impulse =
SimdFloat::from(array![|ii| manifold_points[ii][k].impulse; SIMD_WIDTH]);
- let dp1 = p1.coords - position1.translation.vector;
- let dp2 = p2.coords - position2.translation.vector;
+ let dp1 = p1 - world_com1;
+ let dp2 = p2 - world_com2;
let vel1 = linvel1 + angvel1.gcross(dp1);
let vel2 = linvel2 + angvel2.gcross(dp2);