gfx-rs/wgpu

Bunnymark example does not recompute its projection matrix and other parameters when the canvas size changes

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#5,890 建立於 2024年6月28日

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 (12 留言) (0 反應) (1 負責人)Rust (9,290 star) (703 fork)batch import
good first issuetype: bug

描述

Description examples/src/bunnymark/mod.rs computes an Orthographic RH matrix on page load, but if the canvas is resized, the matrix is not recomputed.

See all uses of config.width and config.height inside examples/src/bunnymark/mod.rs

Repro steps (1) Open https://wgpu.rs/examples/?backend=webgpu&example=bunnymark in Chrome 126.0.6478.127 (2) Resize the window

Expected vs observed behavior Observed: Bunnies bounce outside of the canvas or don't bounce to the top

Expected: bunnies bounce within the resized canvas

Extra materials

https://github.com/gfx-rs/wgpu/assets/105083895/a41bfd50-c2df-4200-937a-0ee0bcf3bc5a

Platform macOS using Chrome Version 128.0.6562.0 (Official Build) canary (arm64)

貢獻者指南

技術棧
rust
領域
developer experience
議題類型
bug
難度面向新貢獻者的預計實作難度，1 表示很小改動，5 表示專家級工作。
3
預計時間有經驗貢獻者完成調查、實作、測試並準備 pull request 的粗略時間範圍。
1-3 hours
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active
清晰度議題是否清楚說明預期改動、驗收標準和下一步。
clear
前置要求
Rust basicswgpu fundamentalsunderstanding of orthographic projection
新手友善度1-100 的估計分數，表示該議題對首次貢獻者的友善程度。
60
研究方向
Examine `examples/src/bunnymark/mod.rs` for all uses of `config.width` and `config.height`. The projection matrix is computed once on load using these values. To fix, add a resize handler that recomputes the matrix when the canvas size changes. Consult the linked video to confirm the issue. The code likely initializes the matrix in a setup function; you'll need to store the matrix or update it in a resize callback.