I’m attempting to transform the orientation of an OpenVR controller that I’ve saved as a glm::vec3 of Euler angles right into a glm::fquat and again, however I get wildly totally different outcomes and the in-game conduct is simply flawed (onerous to clarify, however the orientation of the article behaves usually for a small vary of angles, then flips in bizarre axes).
That is my conversion code:
// get `orientation` from OpenVR controller sensor information
const glm::vec3 eulerAnglesInDegrees{orientation[PITCH], orientation[YAW], orientation[ROLL]};
debugPrint(eulerAnglesInDegrees);
const glm::fquat quaternion{glm::radians(eulerAnglesInDegrees)};
const glm::vec3 end result{glm::levels(glm::eulerAngles(quaternion))};
debugPrint(end result);
// `end result` ought to symbolize the identical orientation as `eulerAnglesInDegrees`
I’d anticipate eulerAnglesInDegrees and end result to both be the identical or equal representations of the identical orientation, however that’s apparently not the case. These are some instance values I get printed out:
39.3851 5.17816 3.29104
39.3851 5.17816 3.29104
32.7636 144.849 44.3845
-147.236 35.1512 -135.616
39.3851 5.17816 3.29104
39.3851 5.17816 3.29104
32.0103 137.415 45.1592
-147.99 42.5846 -134.841
As you may see above, for some orientation ranges the conversion is right, however for others it’s fully totally different.
What am I doing flawed?
I’ve checked out current questions and tried a number of issues, together with attempting out each doable rotation order listed right here, conjugating the quaternion, and different random issues like flipping pitch/yaw/roll. Nothing gave me the anticipated end result.
How can I convert euler angles to quaternions and again, representing the unique orientation, utilizing glm?
Some extra examples of discrepancies:
authentic: 4; 175; 26;
computed: -175; 4; -153;
distinction: 179; 171; 179;
authentic: -6; 173; 32;
computed: 173; 6; -147;
distinction: -179; 167; 179;
authentic: 9; 268; -46;
computed: -170; -88; 133;
distinction: 179; 356; -179;
authentic: -27; -73; 266;
computed: -27; -73; -93;
distinction: 0; 0; 359;
authentic: -33; 111; 205;
computed: 146; 68; 25;
distinction: -179; 43; 180;
I attempted to discover a sample to repair the ultimate computed outcomes, but it surely does not seem to be there’s one simple to establish.
GIF + video of the conduct:
Visible illustration of my instinct/present understanding:
- The above image reveals a sphere, and I am within the heart. Once I purpose the gun in the direction of the inexperienced half of the sphere, the orientation is right. Once I purpose the gun in the direction of the purple half of the sphere, it’s incorrect – it looks like each axis is inverted, however I’m not 100% positive that’s the case.
