Wrong glTF skeleton node calculation

[mich-dy]

Calculation of the skeleton node position is wrong for some models, including the "dq.gltf" file from the example assets.

[mich-dy]

[mich-dy]

The lines with childNode->getNodeMatrix() * glm::vec4(1.0f) also take rotations and scaling into account.

Better use something like childNode->getNodeMatrix()[3] to extract just the translational part from the matrix.

[mich-dy]

Position after change: