Image Tools Flip doesn't work

[BeebBenjamin]

The plug-in is incompatible with image tools flip.

[BeebBenjamin]

This isn't anything we're doing wrong. This is a bug in OSD.

openseadragon/openseadragon#1614

[BeebBenjamin]

We can partially implement a flip of the threejs canvas, but we cannot keep the overlay in the correct position until OSD is fixed!

[BeebBenjamin]

We can add a double sided material as follows:

plane_material = new THREE.MeshPhongMaterial({
            map: albedoMap,
            normalMap: normalMap,
            flatShading: true,
            normalScale: new THREE.Vector3(1, 1),
            side: THREE.DoubleSide,
});

and then flip the x positions as follows:

mesh.position.set(-x, this.props.intersection.height - y, 0);
mesh.scale.x = -1;

[BeebBenjamin]

I have patched our build copy of OpenSeadragon, and put in a PR for the change to the main repo.

[BeebBenjamin]

The fix negates the need for us to have to flip our scales, we just need to make sure out normals are orientated correctly on rotate or flip.

[BeebBenjamin]

The above is fixed and the issue with lighting being updated is also addressed.