3ce2f46ae5
# Objective - So far only full buffer reads were supported. This adds the ability to read a part of a buffer. ## Solution - Allow passing in a start offset and a number of bytes to read when creating the `Readback` component. - I also removed the unused `src_start` and `dst_start` fields from `ReadbackSource` as they were always 0. ## Testing - Did you test these changes? If so, how? I extended the example to also demonstrate partial reads. - Are there any parts that need more testing? Can't think of any. - How can other people (reviewers) test your changes? Is there anything specific they need to know? Run the `gpu_readback` example. It now also reads and prints a partially read buffer. - If relevant, what platforms did you test these changes on, and are there any important ones you can't test? Only tested on Linux. --- ## Showcase Example output: <details> <summary>Click to view showcase</summary> ``` 2025-07-14T14:05:15.614876Z INFO gpu_readback: Buffer [257, 258, 259, 260, 261, 262, 263, 264, 265, 266, 267, 268, 269, 270, 271, 272] 2025-07-14T14:05:15.614921Z INFO gpu_readback: Buffer range [261, 262, 263, 264, 265, 266, 267, 268] 2025-07-14T14:05:15.614937Z INFO gpu_readback: Image [257, 258, 259, 260, 261, 262, 263, 264, 265, 266, 267, 268, 269, 270, 271, 272, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] ``` </details> |
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Bevy Render
