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+ | ======Placing Nodes on Photogrammetry Meshes====== | ||
+ | > | ||
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+ | It is possible to very precisely locate a branch or leaf off of a photogrammetry mesh using [[target_generator|Target generators]]. | ||
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+ | > | ||
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+ | =====The Setup===== | ||
+ | First, you'll need a [[mesh_generator|Mesh generator]] in your model. | ||
+ | |||
+ | {{ : | ||
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+ | =====Add a Target Generator===== | ||
+ | Select the Mesh generator and add the " | ||
+ | |||
+ | Add a Branch, Leaf, or Mesh generator as the child of the Target. | ||
+ | |||
+ | {{ :: | ||
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+ | =====Edit the Result===== | ||
+ | You can go back and move a target, change how the child is oriented, delete targets and add new ones. You can also add multiple Target generators and children if you'd like to do something like position branches and leaves off of a mesh. | ||
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+ | {{ :: | ||
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+ | When using targets to place welded branches off of photogrammetry meshes beware of UV island seam crossings. | ||
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+ | Typical weld error due to uv island crossing: | ||
+ | {{ :: | ||
+ | |||
+ | " | ||
+ | {{ :: | ||
+ | |||
+ | =====Best Practices===== | ||
+ | The following list outlines a few things to keep in mind when placing children off of meshes with Targets. | ||
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+ | * This method is good for manually placing a few children, it is not suitable for procedural generation. | ||
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+ | * Targets can actually be made the child of anything should you want to place things off of regular SpeedTree geometry this way as well. | ||
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+ | * It's often a good idea to place a few procedural branches directly off of a photogrammetry trunk to help with the blend between photogrammetry and procedural data. |