Skinned Geometries
- If you export a skinned mesh from Maya and you want to use it in Houdini, make sure the mesh is triangulated and set the normals per face.
Animation Clips
- Please make sure the joints between a foot root and the foot ik are animated only on one axis before exporting your animation. Joints animated on more than axis will be not evaulated properly by Atoms IK.
Rendering
- Vray does not work with agent groups. If you want to render with vray you have to cache your simulation and create an AtomsProxy node.
- All render engines. Rendering a group node does not work with motion blur. If you want to use motion blur you have to render from a AtomsProxy node.
Maya specific
Maya 2017 update 4: if the imath python module located into the Maya installation is loaded before Atoms, Atoms will start throwing errors like the following.
ArgumentError: Python argument types in AnimationClip.setDirection(AnimationClip, V3d) did not match C++ signature: setDirection(class Atoms::AnimationClip {lvalue}, class Imath_2_2::Vec3<double>) #To avoid this, please ensure Atoms scripts folder come before the site-packages Maya folder.
Houdini specific
- The points layout tool is not available. When using a points layout: 1) to edit the position of the agents modify the incoming mesh points. 2) to edit the direction you need to set a "atoms_pointsLayout_directions" vertex attribute. 3) to edit the agent type you need to set a "atoms_pointsLayout_agentTypes" vertex attribute.