I'd like to create an effect similar to a plant growing over time. Imagine, as the plant grows, it sprouts new leafs and shoots.
I know I can generate a mesh using Python, but can I add geometry to the mesh over time and if so how?
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One way is to use the Sapling addon to create a tree. The addon needs to be enabled first in the User Preferences
After the settings were adjusted.
Convert it from curve to mesh Alt-C
Add a Build Modifier to the stem and another one to the leaves, you might want to add a few more loop cuts Ctrl-R to the stem so that the segments are displayed one by one.
To let the plant grow scale it down say 10% on frame 1, 50% on frame 10, 100% on frame 20 Set the Build modifiers start frame to 20 and 30.