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static_batching [2021/12/12 23:11] starasgames Added a bit of informaton about how static batching works in Editor |
static_batching [2021/12/13 19:18] uninomiconadmin old revision restored (2021/12/11 21:47) |
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Static batching is done at build-time, so mobile developers should be aware that static batching can unexpectedly increase your build size. Static Batching can result in significantly more mesh data being generated, if many batch meshes are created. | Static batching is done at build-time, so mobile developers should be aware that static batching can unexpectedly increase your build size. Static Batching can result in significantly more mesh data being generated, if many batch meshes are created. | ||
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- | In the Editor static batching occurs after the scene is loaded (after Awake and OnEnable). It is considered a [[https:// | ||
==== Lightmap UV Coordinates ==== | ==== Lightmap UV Coordinates ==== | ||
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===== Batching and MaterialPropertyBlocks ===== | ===== Batching and MaterialPropertyBlocks ===== | ||
- | Static and SRP batching is incompatible with MaterialPropertyBlocks, | + | Static and SRP batching is incompatible with MaterialPropertyBlocks, |
- | This is the data sent by the SRP batcher for each draw call: https:// | + | This is the data sent by the SRP batcher for each draw call: |
+ | |||
+ | {{ :: | ||
This data is efficiently managed by the engine and uploaded to the GPU as fast as Unity can. The idea is to abuse some of these built-in values to pass custom data. Good candidates are '' | This data is efficiently managed by the engine and uploaded to the GPU as fast as Unity can. The idea is to abuse some of these built-in values to pass custom data. Good candidates are '' | ||
- | When using SRP batching, the recipe is following: | + | An example, when using SRP batching: |
- | + | ||
- | '' | + | |
- | + | ||
- | '' | + | |
- | For custom SRPs: '' | + | <code csharp> |
+ | renderer.realtimeLightmapIndex | ||
+ | renderer.realtimeLightmapScaleOffset = ...; // Vector4 of custom data | ||
- | On the GPU you should have a '' | + | // For custom |
+ | // (Only relevant for custom SRPs; in existing RPs it should likely just work as is, as they all support lightmapping in the main pass) | ||
+ | drawingSettings.perObjectData = ...; // PerObjectData.Lightmaps or otherStuffYouNeed; | ||
+ | </ | ||
+ | On the GPU you should have a '' | ||
- | Note that the " | + | Note that the " |