gsamplerCubeArrayShadow isn't supported in textureGrad, textureLod or texture with bias

问题描述

跑rust的Bevy示例程序

运行3d的示例，cargo run --example 3d_shapes

发现报错：

INFO bevy_render::renderer: AdapterInfo { name: "Mesa Intel(R) Graphics (ADL GT2)", vendor: 32902, device: 0, device_type: IntegratedGpu, driver: "", driver_info: "", backend: Gl }

ERROR log: Shader translation error for stage ShaderStages(FRAGMENT): gsamplerCubeArrayShadow isn't supported in textureGrad, textureLod or texture with bias

排查

搜索后发现可能是backend问题，但是设置backend为vulkan 未成功

WGPU_BACKEND=vulkan cargo  run --example 3d_shapes

Unable to find a GPU! Make sure you have installed required drivers! For extra information, see: https://github.com/bevyengine/bevy/blob/latest/docs/linux_dependencies.md

尝试了一些配置feature,未成功。

发现需要安装gpu的vulkan库，archlinux下是：extra/vulkan-intel

安装后再测试成功显示图形

WGPU_BACKEND=vulkan  cargo  run  --example 3d_shapes