![]() From that, I think I can give you some hints.įirst, let us call "A, B and C" different algorithms for solving the same problem. Having written a lot of computational software by myself, I have been in your shoes several times. It would be easier to read if I had a version with just the A code. So I'd have one class, but I'd specify if I want the A or B (or C) logic. I have seen suggestions for feature flags. In those cases I would default to an earlier version for a quick-and-dirty answers. For some purposes I may prefer a faster answer, even if it were less accurate. Each version is intended to offer an incremental improvement in forecasting accuracy, although this will typically require greater complexity and processing. In the future I'd start on version C, and I'd like to be able to test C alongside B (and maybe A). Version B ought to give more accurate results (and if not it needs improved/fixed). To test the new changes, I'd like to run a test data set through both version A and version B. I want to be able to run both of these versions of code at the same time in at least these two situations: (It's a forecasting model in Python, but my question is perhaps broader than either of those things.) I have a stable version A of my code, and am working on some accuracy improvements for version B. In the top menu, go to “Object” and find “Link/Transfer Data.How should I set up my project when I want to run the present version of a class against previous versions? I'm interested in issues related to code organization, file naming, and source control.All objects should be outlined in orange with the final object (the active object) being outlined in yellow. Choose the object whose data you want to copy FROM last. Select all objects you wish to have shared / linked data.Here’s how to create links between unlinked objects and their data in Blender: Perhaps we accidentally made a lot of unlinked duplicates and now need to edit them all at once. We may encounter a time when we have two or more objects that are not linked but want to link them. The new object will have an identical material assigned to it, but this material can be edited independently of the original.Īnimation data is also shared by linked duplicates and if you intend to have each object animated differently, you will need to also choose an option which includes “Animation.” How to Link Unlinked Objects ![]() Creating a new set of data for an identical object is wasteful and will cause Blender to work harder to keep track of them all.Īdding “Materials” to the selection will cause the materials assigned to the object to be duplicated. If you need to create lots and lots of copies of the exact same object for a scene, using a linked duplicate is probably best. ![]() We can always add a new primitive if we want to start modeling a new object. ![]() In some cases, one is a more appropriate use than another. When to Use Linked vs Non-Linked Duplicatesĭuplicate objects and linked duplicates both have their own uses, advantages and disadvantages. If you want to learn more about how data blocks work in Blender, I have a full post on how Blender uses data. To create a linked duplicate of an object in Blender, select the object in Object Mode and press “Alt + D.” This is more efficient and allows edits to one object to affect all linked duplicates. When we create a linked duplicate of an object, the new copy will share data with the original object. ![]()
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