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Unity: Difference between revisions
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Unity is a game development framework and game engine. It has a shallow learning curve and is very capable, supporting most popular platforms and features including AR and VR. | Unity is a game development framework and game engine. It has a shallow learning curve and is very capable, supporting most popular platforms and features including AR and VR platforms. | ||
== Shaders == | == Shaders == | ||
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Do not attach scripts to thousands of objects. Instead use one script on one object.<br> | Do not attach scripts to thousands of objects. Instead use one script on one object.<br> | ||
===Merging | ====Merging Meshes==== | ||
If you need thousands of simple objects, one way is to use merge all of the meshes. | If you need thousands of simple objects, one way is to use merge all of the meshes. | ||
For simple objects, you can create a mesh with one vertex per object and expand them in the geometry shader such that they're all drawn in a single draw call. | For simple objects, you can create a mesh with one vertex per object and expand them in the geometry shader such that they're all drawn in a single draw call. Otherwise, merging them on the CPU is more efficient. | ||
Both methods will ensure all objects are drawn in a single draw call. Be aware of the limitations of using a single draw call though. | Both methods will ensure all objects are drawn in a single draw call. | ||
Be aware of the limitations of using a single draw call though; transparency can become tricky. | |||
You can use a compute shader to animate and move the objects instead of using Unity scripts. | You can use a compute shader to animate and move the objects instead of using Unity scripts. | ||