When making trees, the normals are usually mapped into a spherical shape to achieve better lighting of the leaves, usually using MAYA's normal transfer. In Houdini, you can directly map the normal of the ball through the AttributeTransfer node. Let’s learn about it in this article.
1. Place the test tree fbx model into Houdini and add a sphere node
2. Add a point node and add the Normal attribute:
3. Now Check the node information and you can see that the Normal attribute is carried
4. If the Houdini version is too high and the Point node cannot be found, you can also download the AttributeTransfer case in the case document and find the Point node.
5. After attaching the node, drag the sphere to see the normal changes.
6. Finally, adjust the sphere to the appropriate size and enter UE to see the effect.
Note: Houdini imports UE: https://blog.csdn.net/grayrail/article/details/134391383