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 创建于 2024年6月28日

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 (12 评论) (0 反应) (1 负责人)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)

贡献者指南

技术栈
rust
领域
developer experience
议题类型
bug
难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。
3
预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。
1-3 hours
活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。
active
清晰度议题是否清楚说明期望改动、验收标准和下一步。
clear
前置要求
Rust basicswgpu fundamentalsunderstanding of orthographic projection
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
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.
Bunnymark example does not recompute its projection matrix and other parameters when the canvas size changes · gfx-rs/wgpu#5890 | Good First Issue