merge branch qt-ui-2 into master

Reviewed-on: noteuclid/qt-wgpu-skel#1

.clang-format

@@ -0,0 +1,9 @@
+BasedOnStyle: LLVM
+UseTab: Always
+TabWidth: 4
+IndentWidth: 4
+AccessModifierOffset: -4
+IndentCaseLabels: false
+ColumnLimit: 0
+PointerAlignment: Left
+PackConstructorInitializers: Never

.gitignore

@@ -1 +1,2 @@
 /target
+/build

CMakeLists.txt

@@ -0,0 +1,14 @@
+cmake_minimum_required(VERSION 3.18)
+
+project(photon-light VERSION 1.0.0 LANGUAGES CXX)
+
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+find_package(Qt6 REQUIRED COMPONENTS Gui Widgets)
+find_program(CARGO cargo REQUIRED)
+set(CARGO_TARGET_DIR "${CMAKE_BINARY_DIR}/cargo")
+
+qt_standard_project_setup()
+
+add_subdirectory(ui)

Cargo.lock

@@ -159,9 +159,9 @@ dependencies = [
 
 [[package]]
 name = "bumpalo"
-version = "3.19.0"
+version = "3.19.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "46c5e41b57b8bba42a04676d81cb89e9ee8e859a1a66f80a5a72e1cb76b34d43"
+checksum = "5dd9dc738b7a8311c7ade152424974d8115f2cdad61e8dab8dac9f2362298510"
 
 [[package]]
 name = "bytemuck"
@@ -185,9 +185,9 @@ dependencies = [
 
 [[package]]
 name = "bytes"
-version = "1.10.1"
+version = "1.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d71b6127be86fdcfddb610f7182ac57211d4b18a3e9c82eb2d17662f2227ad6a"
+checksum = "b35204fbdc0b3f4446b89fc1ac2cf84a8a68971995d0bf2e925ec7cd960f9cb3"
 
 [[package]]
 name = "calloop"
@@ -217,9 +217,9 @@ dependencies = [
 
 [[package]]
 name = "cc"
-version = "1.2.45"
+version = "1.2.54"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "35900b6c8d709fb1d854671ae27aeaa9eec2f8b01b364e1619a40da3e6fe2afe"
+checksum = "6354c81bbfd62d9cfa9cb3c773c2b7b2a3a482d569de977fd0e961f6e7c00583"
 dependencies = [
  "find-msvc-tools",
  "jobserver",
@@ -408,9 +408,9 @@ dependencies = [
 
 [[package]]
 name = "find-msvc-tools"
-version = "0.1.4"
+version = "0.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "52051878f80a721bb68ebfbc930e07b65ba72f2da88968ea5c06fd6ca3d3a127"
+checksum = "8591b0bcc8a98a64310a2fae1bb3e9b8564dd10e381e6e28010fde8e8e8568db"
 
 [[package]]
 name = "foldhash"
@@ -451,13 +451,38 @@ version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "aa9a19cbb55df58761df49b23516a86d432839add4af60fc256da840f66ed35b"
 
+[[package]]
+name = "futures-core"
+version = "0.3.31"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "05f29059c0c2090612e8d742178b0580d2dc940c837851ad723096f87af6663e"
+
+[[package]]
+name = "futures-task"
+version = "0.3.31"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f90f7dce0722e95104fcb095585910c0977252f286e354b5e3bd38902cd99988"
+
+[[package]]
+name = "futures-util"
+version = "0.3.31"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9fa08315bb612088cc391249efdc3bc77536f16c91f6cf495e6fbe85b20a4a81"
+dependencies = [
+ "futures-core",
+ "futures-task",
+ "pin-project-lite",
+ "pin-utils",
+ "slab",
+]
+
 [[package]]
 name = "gethostname"
 version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1bd49230192a3797a9a4d6abe9b3eed6f7fa4c8a8a4947977c6f80025f92cbd8"
 dependencies = [
- "rustix 1.1.2",
+ "rustix 1.1.3",
  "windows-link",
 ]
 
@@ -486,9 +511,9 @@ dependencies = [
 
 [[package]]
 name = "glam"
-version = "0.30.9"
+version = "0.30.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bd47b05dddf0005d850e5644cae7f2b14ac3df487979dbfff3b56f20b1a6ae46"
+checksum = "19fc433e8437a212d1b6f1e68c7824af3aed907da60afa994e7f542d18d12aa9"
 dependencies = [
  "approx",
  "bytemuck",
@@ -589,9 +614,9 @@ dependencies = [
 
 [[package]]
 name = "hashbrown"
-version = "0.16.0"
+version = "0.16.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5419bdc4f6a9207fbeba6d11b604d481addf78ecd10c11ad51e76c2f6482748d"
+checksum = "841d1cc9bed7f9236f321df977030373f4a4163ae1a7dbfe1a51a2c1a51d9100"
 dependencies = [
  "foldhash 0.2.0",
 ]
@@ -610,12 +635,12 @@ checksum = "dfa686283ad6dd069f105e5ab091b04c62850d3e4cf5d67debad1933f55023df"
 
 [[package]]
 name = "indexmap"
-version = "2.12.0"
+version = "2.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6717a8d2a5a929a1a2eb43a12812498ed141a0bcfb7e8f7844fbdbe4303bba9f"
+checksum = "7714e70437a7dc3ac8eb7e6f8df75fd8eb422675fc7678aff7364301092b1017"
 dependencies = [
  "equivalent",
- "hashbrown 0.16.0",
+ "hashbrown 0.16.1",
 ]
 
 [[package]]
@@ -652,9 +677,9 @@ dependencies = [
 
 [[package]]
 name = "js-sys"
-version = "0.3.82"
+version = "0.3.85"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b011eec8cc36da2aab2d5cff675ec18454fad408585853910a202391cf9f8e65"
+checksum = "8c942ebf8e95485ca0d52d97da7c5a2c387d0e7f0ba4c35e93bfcaee045955b3"
 dependencies = [
  "once_cell",
  "wasm-bindgen",
@@ -679,9 +704,9 @@ checksum = "e2db585e1d738fc771bf08a151420d3ed193d9d895a36df7f6f8a9456b911ddc"
 
 [[package]]
 name = "libc"
-version = "0.2.177"
+version = "0.2.180"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2874a2af47a2325c2001a6e6fad9b16a53b802102b528163885171cf92b15976"
+checksum = "bcc35a38544a891a5f7c865aca548a982ccb3b8650a5b06d0fd33a10283c56fc"
 
 [[package]]
 name = "libloading"
@@ -695,19 +720,19 @@ dependencies = [
 
 [[package]]
 name = "libm"
-version = "0.2.15"
+version = "0.2.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f9fbbcab51052fe104eb5e5d351cf728d30a5be1fe14d9be8a3b097481fb97de"
+checksum = "b6d2cec3eae94f9f509c767b45932f1ada8350c4bdb85af2fcab4a3c14807981"
 
 [[package]]
 name = "libredox"
-version = "0.1.10"
+version = "0.1.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "416f7e718bdb06000964960ffa43b4335ad4012ae8b99060261aa4a8088d5ccb"
+checksum = "3d0b95e02c851351f877147b7deea7b1afb1df71b63aa5f8270716e0c5720616"
 dependencies = [
  "bitflags 2.10.0",
  "libc",
- "redox_syscall 0.5.18",
+ "redox_syscall 0.7.0",
 ]
 
 [[package]]
@@ -739,9 +764,9 @@ dependencies = [
 
 [[package]]
 name = "log"
-version = "0.4.28"
+version = "0.4.29"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "34080505efa8e45a4b816c349525ebe327ceaa8559756f0356cba97ef3bf7432"
+checksum = "5e5032e24019045c762d3c0f28f5b6b8bbf38563a65908389bf7978758920897"
 
 [[package]]
 name = "malloc_buf"
@@ -795,7 +820,7 @@ dependencies = [
  "cfg_aliases",
  "codespan-reporting",
  "half",
- "hashbrown 0.16.0",
+ "hashbrown 0.16.1",
  "hexf-parse",
  "indexmap",
  "libm",
@@ -804,7 +829,7 @@ dependencies = [
  "once_cell",
  "rustc-hash",
  "spirv",
- "thiserror 2.0.17",
+ "thiserror 2.0.18",
  "unicode-ident",
 ]
 
@@ -1090,10 +1115,11 @@ checksum = "42f5e15c9953c5e4ccceeb2e7382a716482c34515315f7b03532b8b4e8393d2d"
 
 [[package]]
 name = "orbclient"
-version = "0.3.49"
+version = "0.3.50"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "247ad146e19b9437f8604c21f8652423595cf710ad108af40e77d3ae6e96b827"
+checksum = "52ad2c6bae700b7aa5d1cc30c59bdd3a1c180b09dbaea51e2ae2b8e1cf211fdd"
 dependencies = [
+ "libc",
  "libredox",
 ]
 
@@ -1165,6 +1191,17 @@ dependencies = [
  "winit",
 ]
 
+[[package]]
+name = "photon-light-impl"
+version = "0.1.0"
+dependencies = [
+ "glam",
+ "photon-light",
+ "pollster",
+ "raw-window-handle",
+ "wgpu",
+]
+
 [[package]]
 name = "pin-project"
 version = "1.1.10"
@@ -1191,6 +1228,12 @@ version = "0.2.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3b3cff922bd51709b605d9ead9aa71031d81447142d828eb4a6eba76fe619f9b"
 
+[[package]]
+name = "pin-utils"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
+
 [[package]]
 name = "pkg-config"
 version = "0.3.32"
@@ -1207,7 +1250,7 @@ dependencies = [
  "concurrent-queue",
  "hermit-abi",
  "pin-project-lite",
- "rustix 1.1.2",
+ "rustix 1.1.3",
  "windows-sys 0.61.2",
 ]
 
@@ -1219,9 +1262,9 @@ checksum = "2f3a9f18d041e6d0e102a0a46750538147e5e8992d3b4873aaafee2520b00ce3"
 
 [[package]]
 name = "portable-atomic"
-version = "1.11.1"
+version = "1.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f84267b20a16ea918e43c6a88433c2d54fa145c92a811b5b047ccbe153674483"
+checksum = "f89776e4d69bb58bc6993e99ffa1d11f228b839984854c7daeb5d37f87cbe950"
 
 [[package]]
 name = "portable-atomic-util"
@@ -1258,9 +1301,9 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.103"
+version = "1.0.106"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5ee95bc4ef87b8d5ba32e8b7714ccc834865276eab0aed5c9958d00ec45f49e8"
+checksum = "8fd00f0bb2e90d81d1044c2b32617f68fcb9fa3bb7640c23e9c748e53fb30934"
 dependencies = [
  "unicode-ident",
 ]
@@ -1273,18 +1316,18 @@ checksum = "3eb8486b569e12e2c32ad3e204dbaba5e4b5b216e9367044f25f1dba42341773"
 
 [[package]]
 name = "quick-xml"
-version = "0.37.5"
+version = "0.38.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "331e97a1af0bf59823e6eadffe373d7b27f485be8748f71471c662c1f269b7fb"
+checksum = "b66c2058c55a409d601666cffe35f04333cf1013010882cec174a7467cd4e21c"
 dependencies = [
  "memchr",
 ]
 
 [[package]]
 name = "quote"
-version = "1.0.42"
+version = "1.0.44"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a338cc41d27e6cc6dce6cefc13a0729dfbb81c262b1f519331575dd80ef3067f"
+checksum = "21b2ebcf727b7760c461f091f9f0f539b77b8e87f2fd88131e7f1b433b3cece4"
 dependencies = [
  "proc-macro2",
 ]
@@ -1297,9 +1340,9 @@ checksum = "69cdb34c158ceb288df11e18b4bd39de994f6657d83847bdffdbd7f346754b0f"
 
 [[package]]
 name = "rand"
-version = "0.9.2"
+version = "0.9.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6db2770f06117d490610c7488547d543617b21bfa07796d7a12f6f1bd53850d1"
+checksum = "b9ef1d0d795eb7d84685bca4f72f3649f064e6641543d3a8c415898726a57b41"
 dependencies = [
  "rand_chacha",
  "rand_core",
@@ -1317,9 +1360,9 @@ dependencies = [
 
 [[package]]
 name = "rand_core"
-version = "0.9.3"
+version = "0.9.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "99d9a13982dcf210057a8a78572b2217b667c3beacbf3a0d8b454f6f82837d38"
+checksum = "76afc826de14238e6e8c374ddcc1fa19e374fd8dd986b0d2af0d02377261d83c"
 dependencies = [
  "getrandom",
 ]
@@ -1373,6 +1416,15 @@ dependencies = [
  "bitflags 2.10.0",
 ]
 
+[[package]]
+name = "redox_syscall"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "49f3fe0889e69e2ae9e41f4d6c4c0181701d00e4697b356fb1f74173a5e0ee27"
+dependencies = [
+ "bitflags 2.10.0",
+]
+
 [[package]]
 name = "renderdoc-sys"
 version = "1.1.0"
@@ -1400,9 +1452,9 @@ dependencies = [
 
 [[package]]
 name = "rustix"
-version = "1.1.2"
+version = "1.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cd15f8a2c5551a84d56efdc1cd049089e409ac19a3072d5037a17fd70719ff3e"
+checksum = "146c9e247ccc180c1f61615433868c99f3de3ae256a30a43b49f67c2d9171f34"
 dependencies = [
  "bitflags 2.10.0",
  "errno",
@@ -1495,9 +1547,9 @@ checksum = "7a2ae44ef20feb57a68b23d846850f861394c2e02dc425a50098ae8c90267589"
 
 [[package]]
 name = "slotmap"
-version = "1.0.7"
+version = "1.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dbff4acf519f630b3a3ddcfaea6c06b42174d9a44bc70c620e9ed1649d58b82a"
+checksum = "bdd58c3c93c3d278ca835519292445cb4b0d4dc59ccfdf7ceadaab3f8aeb4038"
 dependencies = [
  "version_check",
 ]
@@ -1565,9 +1617,9 @@ checksum = "6637bab7722d379c8b41ba849228d680cc12d0a45ba1fa2b48f2a30577a06731"
 
 [[package]]
 name = "syn"
-version = "2.0.110"
+version = "2.0.114"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a99801b5bd34ede4cf3fc688c5919368fea4e4814a4664359503e6015b280aea"
+checksum = "d4d107df263a3013ef9b1879b0df87d706ff80f65a86ea879bd9c31f9b307c2a"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1594,11 +1646,11 @@ dependencies = [
 
 [[package]]
 name = "thiserror"
-version = "2.0.17"
+version = "2.0.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f63587ca0f12b72a0600bcba1d40081f830876000bb46dd2337a3051618f4fc8"
+checksum = "4288b5bcbc7920c07a1149a35cf9590a2aa808e0bc1eafaade0b80947865fbc4"
 dependencies = [
- "thiserror-impl 2.0.17",
+ "thiserror-impl 2.0.18",
 ]
 
 [[package]]
@@ -1614,9 +1666,9 @@ dependencies = [
 
 [[package]]
 name = "thiserror-impl"
-version = "2.0.17"
+version = "2.0.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3ff15c8ecd7de3849db632e14d18d2571fa09dfc5ed93479bc4485c7a517c913"
+checksum = "ebc4ee7f67670e9b64d05fa4253e753e016c6c95ff35b89b7941d6b856dec1d5"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1650,18 +1702,18 @@ dependencies = [
 
 [[package]]
 name = "toml_datetime"
-version = "0.7.3"
+version = "0.7.5+spec-1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f2cdb639ebbc97961c51720f858597f7f24c4fc295327923af55b74c3c724533"
+checksum = "92e1cfed4a3038bc5a127e35a2d360f145e1f4b971b551a2ba5fd7aedf7e1347"
 dependencies = [
  "serde_core",
 ]
 
 [[package]]
 name = "toml_edit"
-version = "0.23.7"
+version = "0.23.10+spec-1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6485ef6d0d9b5d0ec17244ff7eb05310113c3f316f2d14200d4de56b3cb98f8d"
+checksum = "84c8b9f757e028cee9fa244aea147aab2a9ec09d5325a9b01e0a49730c2b5269"
 dependencies = [
  "indexmap",
  "toml_datetime",
@@ -1671,18 +1723,18 @@ dependencies = [
 
 [[package]]
 name = "toml_parser"
-version = "1.0.4"
+version = "1.0.6+spec-1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c0cbe268d35bdb4bb5a56a2de88d0ad0eb70af5384a99d648cd4b3d04039800e"
+checksum = "a3198b4b0a8e11f09dd03e133c0280504d0801269e9afa46362ffde1cbeebf44"
 dependencies = [
  "winnow",
 ]
 
 [[package]]
 name = "tracing"
-version = "0.1.41"
+version = "0.1.44"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "784e0ac535deb450455cbfa28a6f0df145ea1bb7ae51b821cf5e7927fdcfbdd0"
+checksum = "63e71662fa4b2a2c3a26f570f037eb95bb1f85397f3cd8076caed2f026a6d100"
 dependencies = [
  "pin-project-lite",
  "tracing-core",
@@ -1690,9 +1742,9 @@ dependencies = [
 
 [[package]]
 name = "tracing-core"
-version = "0.1.34"
+version = "0.1.36"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b9d12581f227e93f094d3af2ae690a574abb8a2b9b7a96e7cfe9647b2b617678"
+checksum = "db97caf9d906fbde555dd62fa95ddba9eecfd14cb388e4f491a66d74cd5fb79a"
 
 [[package]]
 name = "ttf-parser"
@@ -1736,18 +1788,18 @@ dependencies = [
 
 [[package]]
 name = "wasip2"
-version = "1.0.1+wasi-0.2.4"
+version = "1.0.2+wasi-0.2.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0562428422c63773dad2c345a1882263bbf4d65cf3f42e90921f787ef5ad58e7"
+checksum = "9517f9239f02c069db75e65f174b3da828fe5f5b945c4dd26bd25d89c03ebcf5"
 dependencies = [
  "wit-bindgen",
 ]
 
 [[package]]
 name = "wasm-bindgen"
-version = "0.2.105"
+version = "0.2.108"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "da95793dfc411fbbd93f5be7715b0578ec61fe87cb1a42b12eb625caa5c5ea60"
+checksum = "64024a30ec1e37399cf85a7ffefebdb72205ca1c972291c51512360d90bd8566"
 dependencies = [
  "cfg-if",
  "once_cell",
@@ -1758,11 +1810,12 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-futures"
-version = "0.4.55"
+version = "0.4.58"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "551f88106c6d5e7ccc7cd9a16f312dd3b5d36ea8b4954304657d5dfba115d4a0"
+checksum = "70a6e77fd0ae8029c9ea0063f87c46fde723e7d887703d74ad2616d792e51e6f"
 dependencies = [
  "cfg-if",
+ "futures-util",
  "js-sys",
  "once_cell",
  "wasm-bindgen",
@@ -1771,9 +1824,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro"
-version = "0.2.105"
+version = "0.2.108"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "04264334509e04a7bf8690f2384ef5265f05143a4bff3889ab7a3269adab59c2"
+checksum = "008b239d9c740232e71bd39e8ef6429d27097518b6b30bdf9086833bd5b6d608"
 dependencies = [
  "quote",
  "wasm-bindgen-macro-support",
@@ -1781,9 +1834,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro-support"
-version = "0.2.105"
+version = "0.2.108"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "420bc339d9f322e562942d52e115d57e950d12d88983a14c79b86859ee6c7ebc"
+checksum = "5256bae2d58f54820e6490f9839c49780dff84c65aeab9e772f15d5f0e913a55"
 dependencies = [
  "bumpalo",
  "proc-macro2",
@@ -1794,22 +1847,22 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-shared"
-version = "0.2.105"
+version = "0.2.108"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "76f218a38c84bcb33c25ec7059b07847d465ce0e0a76b995e134a45adcb6af76"
+checksum = "1f01b580c9ac74c8d8f0c0e4afb04eeef2acf145458e52c03845ee9cd23e3d12"
 dependencies = [
  "unicode-ident",
 ]
 
 [[package]]
 name = "wayland-backend"
-version = "0.3.11"
+version = "0.3.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "673a33c33048a5ade91a6b139580fa174e19fb0d23f396dca9fa15f2e1e49b35"
+checksum = "fee64194ccd96bf648f42a65a7e589547096dfa702f7cadef84347b66ad164f9"
 dependencies = [
  "cc",
  "downcast-rs",
- "rustix 1.1.2",
+ "rustix 1.1.3",
  "scoped-tls",
  "smallvec",
  "wayland-sys",
@@ -1817,12 +1870,12 @@ dependencies = [
 
 [[package]]
 name = "wayland-client"
-version = "0.31.11"
+version = "0.31.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c66a47e840dc20793f2264eb4b3e4ecb4b75d91c0dd4af04b456128e0bdd449d"
+checksum = "b8e6faa537fbb6c186cb9f1d41f2f811a4120d1b57ec61f50da451a0c5122bec"
 dependencies = [
  "bitflags 2.10.0",
- "rustix 1.1.2",
+ "rustix 1.1.3",
  "wayland-backend",
  "wayland-scanner",
 ]
@@ -1840,20 +1893,20 @@ dependencies = [
 
 [[package]]
 name = "wayland-cursor"
-version = "0.31.11"
+version = "0.31.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "447ccc440a881271b19e9989f75726d60faa09b95b0200a9b7eb5cc47c3eeb29"
+checksum = "5864c4b5b6064b06b1e8b74ead4a98a6c45a285fe7a0e784d24735f011fdb078"
 dependencies = [
- "rustix 1.1.2",
+ "rustix 1.1.3",
  "wayland-client",
  "xcursor",
 ]
 
 [[package]]
 name = "wayland-protocols"
-version = "0.32.9"
+version = "0.32.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "efa790ed75fbfd71283bd2521a1cfdc022aabcc28bdcff00851f9e4ae88d9901"
+checksum = "baeda9ffbcfc8cd6ddaade385eaf2393bd2115a69523c735f12242353c3df4f3"
 dependencies = [
  "bitflags 2.10.0",
  "wayland-backend",
@@ -1863,9 +1916,9 @@ dependencies = [
 
 [[package]]
 name = "wayland-protocols-plasma"
-version = "0.3.9"
+version = "0.3.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a07a14257c077ab3279987c4f8bb987851bf57081b93710381daea94f2c2c032"
+checksum = "aa98634619300a535a9a97f338aed9a5ff1e01a461943e8346ff4ae26007306b"
 dependencies = [
  "bitflags 2.10.0",
  "wayland-backend",
@@ -1876,9 +1929,9 @@ dependencies = [
 
 [[package]]
 name = "wayland-protocols-wlr"
-version = "0.3.9"
+version = "0.3.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "efd94963ed43cf9938a090ca4f7da58eb55325ec8200c3848963e98dc25b78ec"
+checksum = "e9597cdf02cf0c34cd5823786dce6b5ae8598f05c2daf5621b6e178d4f7345f3"
 dependencies = [
  "bitflags 2.10.0",
  "wayland-backend",
@@ -1889,9 +1942,9 @@ dependencies = [
 
 [[package]]
 name = "wayland-scanner"
-version = "0.31.7"
+version = "0.31.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "54cb1e9dc49da91950bdfd8b848c49330536d9d1fb03d4bfec8cae50caa50ae3"
+checksum = "5423e94b6a63e68e439803a3e153a9252d5ead12fd853334e2ad33997e3889e3"
 dependencies = [
  "proc-macro2",
  "quick-xml",
@@ -1900,9 +1953,9 @@ dependencies = [
 
 [[package]]
 name = "wayland-sys"
-version = "0.31.7"
+version = "0.31.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "34949b42822155826b41db8e5d0c1be3a2bd296c747577a43a3e6daefc296142"
+checksum = "1e6dbfc3ac5ef974c92a2235805cc0114033018ae1290a72e474aa8b28cbbdfd"
 dependencies = [
  "dlib",
  "log",
@@ -1912,9 +1965,9 @@ dependencies = [
 
 [[package]]
 name = "web-sys"
-version = "0.3.82"
+version = "0.3.85"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3a1f95c0d03a47f4ae1f7a64643a6bb97465d9b740f0fa8f90ea33915c99a9a1"
+checksum = "312e32e551d92129218ea9a2452120f4aabc03529ef03e4d0d82fb2780608598"
 dependencies = [
  "js-sys",
  "wasm-bindgen",
@@ -1941,7 +1994,7 @@ dependencies = [
  "cfg-if",
  "cfg_aliases",
  "document-features",
- "hashbrown 0.16.0",
+ "hashbrown 0.16.1",
  "js-sys",
  "log",
  "naga",
@@ -1972,7 +2025,7 @@ dependencies = [
  "bytemuck",
  "cfg_aliases",
  "document-features",
- "hashbrown 0.16.0",
+ "hashbrown 0.16.1",
  "indexmap",
  "log",
  "naga",
@@ -1983,7 +2036,7 @@ dependencies = [
  "raw-window-handle",
  "rustc-hash",
  "smallvec",
- "thiserror 2.0.17",
+ "thiserror 2.0.18",
  "wgpu-core-deps-apple",
  "wgpu-core-deps-emscripten",
  "wgpu-core-deps-windows-linux-android",
@@ -2039,7 +2092,7 @@ dependencies = [
  "gpu-alloc",
  "gpu-allocator",
  "gpu-descriptor",
- "hashbrown 0.16.0",
+ "hashbrown 0.16.1",
  "js-sys",
  "khronos-egl",
  "libc",
@@ -2059,7 +2112,7 @@ dependencies = [
  "raw-window-handle",
  "renderdoc-sys",
  "smallvec",
- "thiserror 2.0.17",
+ "thiserror 2.0.18",
  "wasm-bindgen",
  "web-sys",
  "wgpu-types",
@@ -2077,7 +2130,7 @@ dependencies = [
  "bytemuck",
  "js-sys",
  "log",
- "thiserror 2.0.17",
+ "thiserror 2.0.18",
  "web-sys",
 ]
 
@@ -2371,18 +2424,18 @@ dependencies = [
 
 [[package]]
 name = "winnow"
-version = "0.7.13"
+version = "0.7.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "21a0236b59786fed61e2a80582dd500fe61f18b5dca67a4a067d0bc9039339cf"
+checksum = "5a5364e9d77fcdeeaa6062ced926ee3381faa2ee02d3eb83a5c27a8825540829"
 dependencies = [
  "memchr",
 ]
 
 [[package]]
 name = "wit-bindgen"
-version = "0.46.0"
+version = "0.51.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f17a85883d4e6d00e8a97c586de764dabcc06133f7f1d55dce5cdc070ad7fe59"
+checksum = "d7249219f66ced02969388cf2bb044a09756a083d0fab1e566056b04d9fbcaa5"
 
 [[package]]
 name = "x11-dl"
@@ -2406,7 +2459,7 @@ dependencies = [
  "libc",
  "libloading",
  "once_cell",
- "rustix 1.1.2",
+ "rustix 1.1.3",
  "x11rb-protocol",
 ]
 
@@ -2449,18 +2502,18 @@ checksum = "3ae8337f8a065cfc972643663ea4279e04e7256de865aa66fe25cec5fb912d3f"
 
 [[package]]
 name = "zerocopy"
-version = "0.8.27"
+version = "0.8.33"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0894878a5fa3edfd6da3f88c4805f4c8558e2b996227a3d864f47fe11e38282c"
+checksum = "668f5168d10b9ee831de31933dc111a459c97ec93225beb307aed970d1372dfd"
 dependencies = [
  "zerocopy-derive",
 ]
 
 [[package]]
 name = "zerocopy-derive"
-version = "0.8.27"
+version = "0.8.33"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "88d2b8d9c68ad2b9e4340d7832716a4d21a22a1154777ad56ea55c51a9cf3831"
+checksum = "2c7962b26b0a8685668b671ee4b54d007a67d4eaf05fda79ac0ecf41e32270f1"
 dependencies = [
  "proc-macro2",
  "quote",

Cargo.toml

@@ -1,3 +1,6 @@
+[workspace]
+members = ["ui"]
+
 [package]
 name = "photon-light"
 version = "0.1.0"
@@ -7,9 +10,11 @@ edition = "2024"
 panic = 'abort'
 
 [profile.dev.package."*"]
+debug = false
 opt-level = 3
 
 [profile.test.package."*"]
+debug = false
 opt-level = 3
 
 [dependencies]

README.md

@@ -0,0 +1 @@
+# Photon Light

src/camera.rs

@@ -31,12 +31,13 @@ impl OrbitalCamera {
 				[-1., 0., 0., 0.],
 				[0., 1., 0., 0.],
 				[0., 0., 0., 1.],
-			]) * Mat4::from_euler(
+			])
-			glam::EulerRot::ZYZ,
+			* Mat4::from_euler(
-			0.,
+				glam::EulerRot::ZYZ,
-			self.position_pitch,
+				0.,
-			-self.position_yaw,
+				self.position_pitch,
-		)
+				-self.position_yaw,
+			)
 	}
 }
 

src/lib.rs

@@ -0,0 +1,304 @@
+#![feature(gen_blocks)]
+
+use std::{convert::identity, error::Error, f32::consts::PI};
+
+use glam::{Mat4, UVec2, Vec3, vec3};
+
+use crate::{
+	camera::OrbitalCamera,
+	render::lines::{LookParams, Mesh, Pipeline, Vertex},
+	trace::{Scene, Source, Sphere},
+};
+
+mod camera;
+mod ray;
+mod render;
+mod trace;
+
+const OUTPUT_FORMAT: wgpu::TextureFormat = wgpu::TextureFormat::Bgra8UnormSrgb;
+
+#[derive(Debug, Clone, Copy, PartialEq)]
+#[repr(C)]
+pub struct SphericalPosition {
+	pub yaw: f32,
+	pub pitch: f32,
+	pub distance: f32,
+}
+
+#[derive(Debug, Clone, Copy)]
+#[repr(C)]
+pub struct RedrawArgs {
+	pub camera_position: SphericalPosition,
+	pub light_position: SphericalPosition,
+	pub light_radius: f32,
+	pub light_spread: f32,
+}
+
+impl Default for RedrawArgs {
+	fn default() -> Self {
+		Self {
+			camera_position: SphericalPosition {
+				yaw: PI / 4.,
+				pitch: 0.5f32.sqrt().atan(),
+				distance: 3.0,
+			},
+			light_position: SphericalPosition {
+				yaw: 0.0,
+				pitch: PI / 3.,
+				distance: 1.0,
+			},
+			light_radius: 0.125,
+			light_spread: 0.125,
+		}
+	}
+}
+
+pub struct Gpu {
+	device: wgpu::Device,
+	queue: wgpu::Queue,
+	surface: wgpu::Surface<'static>,
+}
+
+pub struct Core {
+	device: wgpu::Device,
+	queue: wgpu::Queue,
+	surface: wgpu::Surface<'static>,
+
+	pipeline: Pipeline,
+	tripod: Mesh,
+}
+
+pub fn new_tripod(device: &wgpu::Device) -> Mesh {
+	Mesh::new(
+		device,
+		&[
+			Vertex::new(vec3(0., 0., 0.), vec3(1., 0., 0.)),
+			Vertex::new(vec3(1., 0., 0.), vec3(1., 0., 0.)),
+			Vertex::new(vec3(0., 0., 0.), vec3(0., 1., 0.)),
+			Vertex::new(vec3(0., 1., 0.), vec3(0., 1., 0.)),
+			Vertex::new(vec3(0., 0., 0.), vec3(0., 0., 1.)),
+			Vertex::new(vec3(0., 0., 1.), vec3(0., 0., 1.)),
+		],
+	)
+}
+
+fn loop_list<T: Clone>(iter: impl IntoIterator<Item = T>) -> impl Iterator<Item = T> {
+	loop_list_ex(iter, identity, identity)
+}
+
+fn loop_list_ex<T: Clone, U>(
+	iter: impl IntoIterator<Item = T>,
+	mut fa: impl FnMut(T) -> U,
+	mut fb: impl FnMut(T) -> U,
+) -> impl Iterator<Item = U> {
+	gen move {
+		let mut iter = iter.into_iter();
+		let Some(first) = iter.next() else { return };
+		yield fa(first.clone());
+		for item in iter {
+			yield fb(item.clone());
+			yield fa(item);
+		}
+		yield fb(first);
+	}
+}
+
+impl Core {
+	pub fn new(gpu: Gpu, pixel_size: UVec2) -> Self {
+		let Gpu {
+			device,
+			queue,
+			surface,
+		} = gpu;
+
+		let pipeline = Pipeline::new(&device, OUTPUT_FORMAT);
+		let tripod = new_tripod(&device);
+		queue.submit([]); // flush buffer updates
+
+		Self::configure_surface(&surface, &device, pixel_size);
+
+		Self {
+			device,
+			queue,
+			surface,
+			pipeline,
+			tripod,
+		}
+	}
+
+	fn render(&self, output: &wgpu::Texture, args: &RedrawArgs) {
+		let camera = OrbitalCamera {
+			position_yaw: args.camera_position.yaw,
+			position_pitch: args.camera_position.pitch,
+			distance: args.camera_position.distance,
+		};
+		let aspect = {
+			let size = output.size();
+			let w = size.width as f32;
+			let h = size.height as f32;
+			w / h
+		};
+		let perspective = Mat4::perspective_lh(PI / 3., aspect, 1e-2, 1e2);
+		self.pipeline.set_look(
+			&self.queue,
+			LookParams {
+				m: perspective * camera.transform(),
+			},
+		);
+		self.queue.submit([]); // flush buffer updates
+
+		let view = output.create_view(&wgpu::TextureViewDescriptor::default());
+		let mut encoder = self
+			.device
+			.create_command_encoder(&wgpu::CommandEncoderDescriptor::default());
+		let mut pass = encoder.begin_render_pass(&wgpu::RenderPassDescriptor {
+			color_attachments: &[Some(wgpu::RenderPassColorAttachment {
+				view: &view,
+				depth_slice: None,
+				resolve_target: None,
+				ops: wgpu::Operations {
+					load: wgpu::LoadOp::Clear(wgpu::Color {
+						r: 0.1,
+						g: 0.2,
+						b: 0.8,
+						a: 1.0,
+					}),
+					store: wgpu::StoreOp::Store,
+				},
+			})],
+			depth_stencil_attachment: None,
+			..Default::default()
+		});
+		self.pipeline.render(&mut pass, [&self.tripod]);
+
+		let source = Source {
+			position_yaw: args.light_position.yaw,
+			position_pitch: args.light_position.pitch,
+			distance: args.light_position.distance,
+			radius: args.light_radius,
+			spread: args.light_spread,
+		};
+
+		let contour: Vec<Vertex> = loop_list(source.contour(17))
+			.map(|pos| Vertex {
+				pos,
+				color: vec3(1., 1., 1.),
+			})
+			.collect();
+		self.pipeline
+			.render(&mut pass, [&Mesh::new(&self.device, &contour)]);
+
+		const BASE_R: f32 = 2.;
+		const BASE_POS: Vec3 = vec3(0., 0., -BASE_R);
+		const BASE: Sphere = Sphere {
+			position: vec3(0., 0., -BASE_R),
+			radius: BASE_R,
+		};
+		fn sphere(pos: Vec3) -> Sphere {
+			Sphere {
+				position: pos,
+				radius: BASE_POS.distance(pos) - BASE_R,
+			}
+		}
+		let scene = Scene {
+			objects: vec![
+				BASE,
+				sphere(vec3(0., 0., 0.1)),
+				sphere(vec3(0.3, 0., 0.1)),
+				sphere(vec3(0.1, 0.3, 0.1)),
+			],
+		};
+
+		let mut prng = rand_pcg::Pcg64::new(42, 0);
+		let rays: Vec<Vertex> = (0..10000)
+			.flat_map(|_| {
+				let ray = source.make_ray(&mut prng);
+				if let Some(ray) = scene.trace_ray(ray) {
+					[
+						Vertex {
+							pos: ray.base - 0.02 * ray.dir,
+							color: vec3(1., 1., 1.),
+						},
+						Vertex {
+							pos: ray.base,
+							color: vec3(0., 1., 0.),
+						},
+					]
+				} else {
+					[
+						Vertex {
+							pos: ray.base,
+							color: vec3(1., 1., 1.),
+						},
+						Vertex {
+							pos: ray.base + 0.1 * ray.dir,
+							color: vec3(1., 0., 0.),
+						},
+					]
+				}
+			})
+			.collect();
+		self.pipeline
+			.render(&mut pass, [&Mesh::new(&self.device, &rays)]);
+
+		drop(pass);
+		self.queue.submit(std::iter::once(encoder.finish()));
+	}
+
+	fn configure_surface(surface: &wgpu::Surface, device: &wgpu::Device, pixel_size: UVec2) {
+		surface.configure(
+			device,
+			&wgpu::SurfaceConfiguration {
+				usage: wgpu::TextureUsages::RENDER_ATTACHMENT | wgpu::TextureUsages::COPY_DST,
+				format: OUTPUT_FORMAT,
+				width: pixel_size.x,
+				height: pixel_size.y,
+				present_mode: wgpu::PresentMode::Fifo,
+				alpha_mode: wgpu::CompositeAlphaMode::Auto,
+				view_formats: vec![],
+				desired_maximum_frame_latency: 2,
+			},
+		);
+	}
+
+	/// Configures the renderer for a given target size.
+	pub fn configure(&mut self, pixel_size: UVec2) {
+		Self::configure_surface(&self.surface, &self.device, pixel_size);
+	}
+
+	/// Redraws the entire surface.
+	///
+	/// [`Self::configure`] must be called at least once before this.
+	pub fn redraw(&mut self, args: &RedrawArgs) {
+		let output = self.surface.get_current_texture().unwrap();
+		self.render(&output.texture, args);
+		output.present();
+	}
+}
+
+pub async fn init_gpu_inner<E: Error + 'static>(
+	make_surface: impl FnOnce(&wgpu::Instance) -> Result<wgpu::Surface<'static>, E>,
+) -> Result<Gpu, Box<dyn Error>> {
+	let instance = wgpu::Instance::new(&wgpu::InstanceDescriptor {
+		backends: wgpu::Backends::PRIMARY,
+		..Default::default()
+	});
+	let surface = make_surface(&instance)?;
+	let adapter = instance
+		.request_adapter(&wgpu::RequestAdapterOptions {
+			power_preference: wgpu::PowerPreference::default(),
+			compatible_surface: Some(&surface),
+			force_fallback_adapter: false,
+		})
+		.await
+		.unwrap();
+	let (device, queue) = adapter
+		.request_device(&wgpu::DeviceDescriptor::default())
+		.await
+		.unwrap();
+	Ok(Gpu {
+		device,
+		queue,
+		surface,
+	})
+}

src/main.rs

@@ -1,8 +1,6 @@
-#![feature(gen_blocks)]
+use std::sync::Arc;
 
-use std::{convert::identity, error::Error, f32::consts::PI, sync::Arc};
+use glam::uvec2;
-
-use glam::{Mat4, Vec3, vec3};
 use winit::{
 	application::ApplicationHandler,
 	event::WindowEvent,
@@ -10,236 +8,36 @@ use winit::{
 	window::Window,
 };
 
-use crate::{
+use photon_light::{Core, RedrawArgs, init_gpu_inner};
-	camera::OrbitalCamera,
-	render::lines::{LookParams, Mesh, Pipeline, Vertex},
-	trace::{Scene, Source, Sphere},
-};
 
-mod camera;
+const TITLE: &str = "Photon Light";
-mod ray;
-mod render;
-mod trace;
-
-const TITLE: &str = "WGPU example";
-const OUTPUT_FORMAT: wgpu::TextureFormat = wgpu::TextureFormat::Bgra8UnormSrgb;
 
 struct MainWindow {
-	handle: Arc<Window>,
+	window: Arc<Window>,
-	device: wgpu::Device,
+	core: Core,
-	queue: wgpu::Queue,
-	surface: wgpu::Surface<'static>,
-	surface_configured: bool,
-
-	pipeline: Pipeline,
-	tripod: Mesh,
-}
-
-pub fn new_tripod(device: &wgpu::Device) -> Mesh {
-	Mesh::new(
-		device,
-		&[
-			Vertex::new(vec3(0., 0., 0.), vec3(1., 0., 0.)),
-			Vertex::new(vec3(1., 0., 0.), vec3(1., 0., 0.)),
-			Vertex::new(vec3(0., 0., 0.), vec3(0., 1., 0.)),
-			Vertex::new(vec3(0., 1., 0.), vec3(0., 1., 0.)),
-			Vertex::new(vec3(0., 0., 0.), vec3(0., 0., 1.)),
-			Vertex::new(vec3(0., 0., 1.), vec3(0., 0., 1.)),
-		],
-	)
-}
-
-fn loop_list<T: Clone>(iter: impl IntoIterator<Item = T>) -> impl Iterator<Item = T> {
-	loop_list_ex(iter, identity, identity)
-}
-
-fn loop_list_ex<T: Clone, U>(
-	iter: impl IntoIterator<Item = T>,
-	mut fa: impl FnMut(T) -> U,
-	mut fb: impl FnMut(T) -> U,
-) -> impl Iterator<Item = U> {
-	gen move {
-		let mut iter = iter.into_iter();
-		let Some(first) = iter.next() else { return };
-		yield fa(first.clone());
-		for item in iter {
-			yield fb(item.clone());
-			yield fa(item);
-		}
-		yield fb(first);
-	}
 }
 
 impl MainWindow {
 	fn new(event_loop: &ActiveEventLoop) -> Self {
-		let handle = event_loop
+		let window = event_loop
 			.create_window(Window::default_attributes().with_title(TITLE))
 			.unwrap();
-		let handle = Arc::new(handle);
+		let window = Arc::new(window);
-
+		let gpu = pollster::block_on(init_gpu_inner(|instance| {
-		let (device, queue, surface) = pollster::block_on(init_gpu(Arc::clone(&handle))).unwrap();
+			instance.create_surface(Arc::clone(&window))
-		let pipeline = Pipeline::new(&device, OUTPUT_FORMAT);
+		}))
-		let tripod = new_tripod(&device);
+		.unwrap();
-		queue.submit([]); // flush buffer updates
+		let core = Core::new(gpu, uvec2(1, 1));
-
+		Self { window, core }
-		Self {
-			handle,
-			device,
-			queue,
-			surface,
-			surface_configured: false,
-			pipeline,
-			tripod,
-		}
-	}
-
-	fn render(&self, output: &wgpu::Texture) {
-		let camera = OrbitalCamera {
-			position_yaw: PI / 4.,
-			position_pitch: 0.5f32.sqrt().atan(),
-			distance: 3.0,
-		};
-		let aspect = {
-			let size = output.size();
-			let w = size.width as f32;
-			let h = size.height as f32;
-			w / h
-		};
-		let perspective = Mat4::perspective_lh(PI / 3., aspect, 1e-2, 1e2);
-		self.pipeline.set_look(
-			&self.queue,
-			LookParams {
-				m: perspective * camera.transform(),
-			},
-		);
-		self.queue.submit([]); // flush buffer updates
-
-		let view = output.create_view(&wgpu::TextureViewDescriptor::default());
-		let mut encoder = self
-			.device
-			.create_command_encoder(&wgpu::CommandEncoderDescriptor::default());
-		let mut pass = encoder.begin_render_pass(&wgpu::RenderPassDescriptor {
-			color_attachments: &[Some(wgpu::RenderPassColorAttachment {
-				view: &view,
-				depth_slice: None,
-				resolve_target: None,
-				ops: wgpu::Operations {
-					load: wgpu::LoadOp::Clear(wgpu::Color {
-						r: 0.1,
-						g: 0.2,
-						b: 0.8,
-						a: 1.0,
-					}),
-					store: wgpu::StoreOp::Store,
-				},
-			})],
-			depth_stencil_attachment: None,
-			..Default::default()
-		});
-		self.pipeline.render(&mut pass, [&self.tripod]);
-
-		let source = Source {
-			position_yaw: 0.0,
-			position_pitch: PI / 3.,
-			distance: 1.0,
-			radius: 0.125,
-			spread: 0.125,
-		};
-
-		let contour: Vec<Vertex> = loop_list(source.contour(17))
-			.map(|pos| Vertex {
-				pos,
-				color: vec3(1., 1., 1.),
-			})
-			.collect();
-		self.pipeline
-			.render(&mut pass, [&Mesh::new(&self.device, &contour)]);
-
-		const BASE_R: f32 = 2.;
-		const BASE_POS: Vec3 = vec3(0., 0., -BASE_R);
-		const BASE: Sphere = Sphere {
-			position: vec3(0., 0., -BASE_R),
-			radius: BASE_R,
-		};
-		fn sphere(pos: Vec3) -> Sphere {
-			Sphere {
-				position: pos,
-				radius: BASE_POS.distance(pos) - BASE_R,
-			}
-		}
-		let scene = Scene {
-			objects: vec![
-				BASE,
-				sphere(vec3(0., 0., 0.1)),
-				sphere(vec3(0.3, 0., 0.1)),
-				sphere(vec3(0.1, 0.3, 0.1)),
-			],
-		};
-
-		let mut prng = rand_pcg::Pcg64::new(42, 0);
-		let rays: Vec<Vertex> = (0..10000)
-			.flat_map(|_| {
-				let ray = source.make_ray(&mut prng);
-				if let Some(ray) = scene.trace_ray(ray) {
-					[
-						Vertex {
-							pos: ray.base - 0.02 * ray.dir,
-							color: vec3(1., 1., 1.),
-						},
-						Vertex {
-							pos: ray.base,
-							color: vec3(0., 1., 0.),
-						},
-					]
-				} else {
-					[
-						Vertex {
-							pos: ray.base,
-							color: vec3(1., 1., 1.),
-						},
-						Vertex {
-							pos: ray.base + 0.1 * ray.dir,
-							color: vec3(1., 0., 0.),
-						},
-					]
-				}
-			})
-			.collect();
-		self.pipeline
-			.render(&mut pass, [&Mesh::new(&self.device, &rays)]);
-
-		drop(pass);
-		self.queue.submit(std::iter::once(encoder.finish()));
 	}
 
 	fn event(&mut self, event_loop: &ActiveEventLoop, event: WindowEvent) {
 		match event {
 			WindowEvent::CloseRequested => event_loop.exit(),
-			WindowEvent::Resized(physical_size) => {
+			WindowEvent::Resized(physical_size) => self
-				self.surface.configure(
+				.core
-					&self.device,
+				.configure(uvec2(physical_size.width, physical_size.height)),
-					&wgpu::SurfaceConfiguration {
+			WindowEvent::RedrawRequested => self.core.redraw(&RedrawArgs::default()),
-						usage: wgpu::TextureUsages::RENDER_ATTACHMENT
-							| wgpu::TextureUsages::COPY_DST,
-						format: OUTPUT_FORMAT,
-						width: physical_size.width,
-						height: physical_size.height,
-						present_mode: wgpu::PresentMode::Fifo,
-						alpha_mode: wgpu::CompositeAlphaMode::Auto,
-						view_formats: vec![],
-						desired_maximum_frame_latency: 2,
-					},
-				);
-				self.surface_configured = true;
-			}
-			WindowEvent::RedrawRequested => {
-				if !self.surface_configured {
-					return;
-				}
-				let output = self.surface.get_current_texture().unwrap();
-				self.render(&output.texture);
-				output.present();
-			}
 			_ => {}
 		}
 	}
@@ -270,34 +68,11 @@ impl ApplicationHandler for Application {
 			.main_window
 			.as_mut()
 			.expect("window must exist to recieve events");
-		assert_eq!(window.handle.id(), window_id);
+		assert_eq!(window.window.id(), window_id);
 		window.event(event_loop, event);
 	}
 }
 
-async fn init_gpu<'window>(
-	wnd: impl wgpu::WindowHandle + 'window,
-) -> Result<(wgpu::Device, wgpu::Queue, wgpu::Surface<'window>), Box<dyn Error>> {
-	let instance = wgpu::Instance::new(&wgpu::InstanceDescriptor {
-		backends: wgpu::Backends::PRIMARY,
-		..Default::default()
-	});
-	let surface = instance.create_surface(wnd)?;
-	let adapter = instance
-		.request_adapter(&wgpu::RequestAdapterOptions {
-			power_preference: wgpu::PowerPreference::default(),
-			compatible_surface: Some(&surface),
-			force_fallback_adapter: false,
-		})
-		.await
-		.unwrap();
-	let (device, queue) = adapter
-		.request_device(&wgpu::DeviceDescriptor::default())
-		.await
-		.unwrap();
-	Ok((device, queue, surface))
-}
-
 fn main() {
 	let event_loop = EventLoop::new().unwrap();
 	event_loop.set_control_flow(ControlFlow::Wait);

ui/CMakeLists.txt

@@ -0,0 +1,13 @@
+include(impl.cmake)
+
+qt_add_executable(photon-light
+	src/api.cxx
+	src/main.cxx
+	src/main_window.cxx
+	src/main_window.ui
+	src/viewport.cxx
+)
+
+target_link_libraries(photon-light PRIVATE Qt6::Gui Qt6::Widgets)
+target_link_libraries(photon-light PRIVATE photon_light_impl)
+target_include_directories(photon-light PRIVATE src)

ui/Cargo.toml

@@ -0,0 +1,15 @@
+[package]
+name = "photon-light-impl"
+version = "0.1.0"
+edition = "2024"
+
+[lib]
+crate-type = ["staticlib"]
+
+[dependencies]
+photon-light = {path = "../"}
+
+glam = { version = "0.30" }
+pollster = "0.4.0"
+raw-window-handle = "0.6.2"
+wgpu = "27.0.1"

ui/impl.cmake

@@ -0,0 +1,22 @@
+set(impl_basename "${CARGO_TARGET_DIR}/release/libphoton_light_impl")
+
+add_custom_command(
+	OUTPUT ${impl_basename}.a
+	COMMAND env CARGO_TARGET_DIR=${CARGO_TARGET_DIR} ${CARGO} build --release --package photon-light-impl
+	WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
+	DEPFILE ${impl_basename}.d
+	USES_TERMINAL
+	JOB_SERVER_AWARE
+	DEPENDS_EXPLICIT_ONLY
+)
+
+# HACK ensure CMake *actually adds* the command above
+add_custom_target(build_impl
+	DEPENDS ${impl_basename}.a
+)
+
+add_library(photon_light_impl STATIC IMPORTED)
+
+set_target_properties(photon_light_impl PROPERTIES
+	IMPORTED_LOCATION ${impl_basename}.a
+)

ui/src/api.cxx

@@ -0,0 +1,57 @@
+#include "api.hxx"
+
+#include <stdexcept>
+#include <utility>
+
+namespace ffi {
+extern "C" Core* rt4_viewport_create(xcb_connection_t* connection, std::uint32_t window, std::uint32_t width, std::uint32_t height);
+extern "C" void rt4_viewport_destroy(Core* viewport);
+extern "C" void rt4_viewport_configure(Core* viewport, std::uint32_t width, std::uint32_t height);
+extern "C" void rt4_viewport_redraw(Core* viewport, const RedrawArgs* args);
+} // namespace ffi
+
+BoxCore::BoxCore(BoxCore&& b)
+	: ptr(std::exchange(b.ptr, {})) {
+}
+
+BoxCore::~BoxCore() {
+	reset();
+}
+
+BoxCore& BoxCore::operator=(BoxCore&& b) {
+	if (&b == this)
+		return *this;
+	std::swap(ptr, b.ptr);
+	b.reset();
+	return *this;
+}
+
+BoxCore BoxCore::from_xcb(xcb_connection_t* connection, std::uint32_t window, std::uint32_t width, std::uint32_t height) {
+	if (!connection)
+		throw std::logic_error("attempt to use a null connection");
+	if (!window)
+		throw std::logic_error("attempt to use a null window");
+	BoxCore out;
+	out.ptr.ptr = ffi::rt4_viewport_create(connection, window, width, height);
+	return out;
+}
+
+void BoxCore::reset() {
+	auto viewport = std::exchange(ptr, {});
+	if (viewport)
+		ffi::rt4_viewport_destroy(viewport.use());
+}
+
+ffi::Core* MutCore::use() const {
+	if (!ptr)
+		throw std::logic_error("attempt to use a null Core");
+	return ptr;
+}
+
+void MutCore::configure(std::uint32_t width, std::uint32_t height) const {
+	rt4_viewport_configure(use(), width, height);
+}
+
+void MutCore::redraw(const RedrawArgs& args) const {
+	rt4_viewport_redraw(use(), &args);
+}

ui/src/api.hxx

@@ -0,0 +1,59 @@
+#pragma once
+
+#include <cstdint>
+
+struct xcb_connection_t;
+
+namespace ffi {
+struct Core;
+
+struct SphericalPosition {
+	float yaw;
+	float pitch;
+	float distance;
+};
+
+struct RedrawArgs {
+	SphericalPosition camera_position;
+	SphericalPosition light_position;
+	float light_radius;
+	float light_spread;
+};
+} // namespace ffi
+
+using ffi::RedrawArgs;
+using ffi::SphericalPosition;
+
+class MutCore {
+	friend class BoxCore;
+
+public:
+	explicit operator bool() const { return ptr; }
+
+	void configure(std::uint32_t width, std::uint32_t height) const;
+	void redraw(const RedrawArgs& args) const;
+
+private:
+	ffi::Core* ptr = nullptr;
+	ffi::Core* use() const;
+};
+
+class BoxCore {
+public:
+	BoxCore() = default;
+	BoxCore(const BoxCore&) = delete;
+	BoxCore(BoxCore&&);
+	BoxCore& operator=(const BoxCore&) = delete;
+	BoxCore& operator=(BoxCore&&);
+	~BoxCore();
+
+	explicit operator bool() const { return !!ptr; }
+	const MutCore* operator->() const { return &ptr; }
+
+	void reset();
+
+	static BoxCore from_xcb(xcb_connection_t* connection, std::uint32_t window, std::uint32_t width, std::uint32_t height);
+
+private:
+	MutCore ptr;
+};

ui/src/lib.rs

@@ -0,0 +1,49 @@
+use std::{ffi::c_void, num::NonZero, ptr::NonNull};
+
+use glam::{UVec2, uvec2};
+use raw_window_handle::{RawDisplayHandle, RawWindowHandle, XcbDisplayHandle, XcbWindowHandle};
+
+use photon_light::{Core, RedrawArgs, init_gpu_inner};
+
+unsafe fn create_viewport(
+	display: impl Into<RawDisplayHandle>,
+	window: impl Into<RawWindowHandle>,
+	size: UVec2,
+) -> Box<Core> {
+	let target = wgpu::SurfaceTargetUnsafe::RawHandle {
+		raw_display_handle: display.into(),
+		raw_window_handle: window.into(),
+	};
+	let gpu = pollster::block_on(init_gpu_inner(|instance| unsafe {
+		instance.create_surface_unsafe(target)
+	}))
+	.unwrap();
+	Box::new(Core::new(gpu, size))
+}
+
+#[unsafe(no_mangle)]
+unsafe extern "C" fn rt4_viewport_create(
+	connection: NonNull<c_void>,
+	window: NonZero<u32>,
+	width: u32,
+	height: u32,
+) -> Box<Core> {
+	let display = XcbDisplayHandle::new(Some(connection), 0);
+	let window = XcbWindowHandle::new(window);
+	unsafe { create_viewport(display, window, uvec2(width, height)) }
+}
+
+#[unsafe(no_mangle)]
+unsafe extern "C" fn rt4_viewport_destroy(viewport: Box<Core>) {
+	drop(viewport);
+}
+
+#[unsafe(no_mangle)]
+unsafe extern "C" fn rt4_viewport_configure(viewport: &mut Core, width: u32, height: u32) {
+	viewport.configure(uvec2(width, height));
+}
+
+#[unsafe(no_mangle)]
+unsafe extern "C" fn rt4_viewport_redraw(viewport: &mut Core, args: &RedrawArgs) {
+	viewport.redraw(args);
+}

ui/src/main.cxx

@@ -0,0 +1,15 @@
+#include "main_window.hxx"
+
+#include <QApplication>
+
+int main(int argc, char* argv[]) {
+	// only X11 is supported so, use XCB unless overriden
+	setenv("QT_QPA_PLATFORM", "xcb", 0);
+
+	QApplication app(argc, argv);
+
+	auto w = new PhotonLight;
+	w->show();
+
+	return app.exec();
+}

ui/src/main_window.cxx

@@ -0,0 +1,35 @@
+#include "main_window.hxx"
+
+#include "ui_main_window.h"
+
+PhotonLight::PhotonLight(QWidget* parent)
+	: QMainWindow(parent),
+	  m_ui(new Ui::MainWindow) {
+	m_ui->setupUi(this);
+	updateView();
+}
+
+PhotonLight::~PhotonLight() = default;
+
+float deg_to_rad(float val) {
+	return val * float(M_PI / 180);
+}
+
+void PhotonLight::updateView() {
+	m_ui->viewport->setView(RedrawArgs{
+		.camera_position = SphericalPosition{
+			.yaw = deg_to_rad(m_ui->cameraYaw->value()),
+			.pitch = deg_to_rad(m_ui->cameraPitch->value()),
+			.distance = 3.0,
+		},
+		.light_position = SphericalPosition{
+			.yaw = deg_to_rad(m_ui->lightYaw->value()),
+			.pitch = deg_to_rad(m_ui->lightPitch->value()),
+			.distance = 1.0,
+		},
+		.light_radius = 0.125,
+		.light_spread = 0.125,
+	});
+}
+
+#include "moc_main_window.cpp"

ui/src/main_window.hxx

@@ -0,0 +1,22 @@
+#pragma once
+#include <QMainWindow>
+
+#include <memory>
+
+namespace Ui {
+class MainWindow;
+}
+
+class PhotonLight : public QMainWindow {
+	Q_OBJECT
+
+public:
+	explicit PhotonLight(QWidget* parent = nullptr);
+	~PhotonLight() override;
+
+public slots:
+	void updateView();
+
+private:
+	const std::unique_ptr<Ui::MainWindow> m_ui;
+};

ui/src/main_window.ui

@@ -0,0 +1,260 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>MainWindow</class>
+ <widget class="QMainWindow" name="MainWindow">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>800</width>
+    <height>600</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>MainWindow</string>
+  </property>
+  <widget class="QWidget" name="centralwidget">
+   <layout class="QHBoxLayout" name="horizontalLayout_2">
+    <item>
+     <widget class="Viewport" name="viewport" native="true"/>
+    </item>
+   </layout>
+  </widget>
+  <widget class="QMenuBar" name="menubar">
+   <property name="geometry">
+    <rect>
+     <x>0</x>
+     <y>0</y>
+     <width>800</width>
+     <height>38</height>
+    </rect>
+   </property>
+  </widget>
+  <widget class="QStatusBar" name="statusbar"/>
+  <widget class="QDockWidget" name="dockWidget">
+   <property name="features">
+    <set>QDockWidget::DockWidgetFloatable|QDockWidget::DockWidgetMovable</set>
+   </property>
+   <attribute name="dockWidgetArea">
+    <number>2</number>
+   </attribute>
+   <widget class="QWidget" name="dockWidgetContents">
+    <layout class="QVBoxLayout" name="verticalLayout_2">
+     <item>
+      <widget class="QGroupBox" name="groupBox">
+       <property name="title">
+        <string>Camera</string>
+       </property>
+       <layout class="QVBoxLayout" name="verticalLayout">
+        <item>
+         <widget class="QLabel" name="label">
+          <property name="text">
+           <string>Yaw</string>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="QSlider" name="cameraYaw">
+          <property name="minimum">
+           <number>-180</number>
+          </property>
+          <property name="maximum">
+           <number>180</number>
+          </property>
+          <property name="pageStep">
+           <number>15</number>
+          </property>
+          <property name="value">
+           <number>45</number>
+          </property>
+          <property name="orientation">
+           <enum>Qt::Horizontal</enum>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="QLabel" name="label_2">
+          <property name="text">
+           <string>Pitch</string>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="QSlider" name="cameraPitch">
+          <property name="minimum">
+           <number>-90</number>
+          </property>
+          <property name="maximum">
+           <number>90</number>
+          </property>
+          <property name="pageStep">
+           <number>15</number>
+          </property>
+          <property name="value">
+           <number>35</number>
+          </property>
+          <property name="orientation">
+           <enum>Qt::Horizontal</enum>
+          </property>
+         </widget>
+        </item>
+       </layout>
+      </widget>
+     </item>
+     <item>
+      <widget class="QGroupBox" name="groupBox_2">
+       <property name="title">
+        <string>Light</string>
+       </property>
+       <layout class="QVBoxLayout" name="verticalLayout_3">
+        <item>
+         <widget class="QLabel" name="label_3">
+          <property name="text">
+           <string>Yaw</string>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="QSlider" name="lightYaw">
+          <property name="minimum">
+           <number>-180</number>
+          </property>
+          <property name="maximum">
+           <number>180</number>
+          </property>
+          <property name="pageStep">
+           <number>15</number>
+          </property>
+          <property name="orientation">
+           <enum>Qt::Horizontal</enum>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="QLabel" name="label_4">
+          <property name="text">
+           <string>Pitch</string>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="QSlider" name="lightPitch">
+          <property name="minimum">
+           <number>-90</number>
+          </property>
+          <property name="maximum">
+           <number>90</number>
+          </property>
+          <property name="pageStep">
+           <number>15</number>
+          </property>
+          <property name="value">
+           <number>60</number>
+          </property>
+          <property name="orientation">
+           <enum>Qt::Horizontal</enum>
+          </property>
+          <property name="invertedAppearance">
+           <bool>false</bool>
+          </property>
+         </widget>
+        </item>
+       </layout>
+      </widget>
+     </item>
+     <item>
+      <spacer name="verticalSpacer">
+       <property name="orientation">
+        <enum>Qt::Vertical</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>20</width>
+         <height>385</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+    </layout>
+   </widget>
+  </widget>
+ </widget>
+ <customwidgets>
+  <customwidget>
+   <class>Viewport</class>
+   <extends>QWidget</extends>
+   <header>viewport.hxx</header>
+   <container>1</container>
+  </customwidget>
+ </customwidgets>
+ <resources/>
+ <connections>
+  <connection>
+   <sender>cameraYaw</sender>
+   <signal>valueChanged(int)</signal>
+   <receiver>MainWindow</receiver>
+   <slot>updateView()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>688</x>
+     <y>159</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>403</x>
+     <y>362</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>cameraPitch</sender>
+   <signal>valueChanged(int)</signal>
+   <receiver>MainWindow</receiver>
+   <slot>updateView()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>688</x>
+     <y>215</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>403</x>
+     <y>362</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>lightYaw</sender>
+   <signal>valueChanged(int)</signal>
+   <receiver>MainWindow</receiver>
+   <slot>updateView()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>688</x>
+     <y>319</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>403</x>
+     <y>362</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>lightPitch</sender>
+   <signal>valueChanged(int)</signal>
+   <receiver>MainWindow</receiver>
+   <slot>updateView()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>688</x>
+     <y>375</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>403</x>
+     <y>362</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+ <slots>
+  <slot>updateView()</slot>
+ </slots>
+</ui>

ui/src/viewport.cxx

@@ -0,0 +1,74 @@
+#include "viewport.hxx"
+
+#include <QApplication>
+#include <QEvent>
+#include <QGuiApplication>
+
+Viewport::Viewport(QWidget* parent, Qt::WindowFlags f)
+	: QWidget(parent, f) {
+	setAttribute(Qt::WA_DontCreateNativeAncestors);
+	setAttribute(Qt::WA_NativeWindow);
+	setAttribute(Qt::WA_PaintOnScreen);
+	setAttribute(Qt::WA_NoSystemBackground);
+}
+
+Viewport::~Viewport() = default;
+
+void Viewport::setView(RedrawArgs new_args) {
+	args = new_args;
+	update();
+}
+
+QPaintEngine* Viewport::paintEngine() const {
+	return nullptr;
+}
+
+bool Viewport::event(QEvent* event) {
+	switch (event->type()) {
+	case QEvent::Type::WinIdChange:
+		recreate();
+		break;
+	default:
+		break;
+	}
+	return QWidget::event(event);
+}
+
+void Viewport::paintEvent(QPaintEvent* event) {
+	if (!core)
+		recreate();
+	core->redraw(args);
+}
+
+void Viewport::resizeEvent(QResizeEvent* event) {
+	if (!core)
+		return;
+	updateSize();
+	QWidget::resizeEvent(event);
+}
+
+void Viewport::recreate() try {
+	auto* app = qobject_cast<QGuiApplication*>(QApplication::instance());
+	if (!app)
+		throw std::runtime_error("not a GUI application (WTF?)");
+
+	auto* native = app->nativeInterface<QNativeInterface::QX11Application>();
+	if (!native)
+		throw std::runtime_error("X11 interface is not available");
+
+	auto* xcb_connection = native->connection();
+	std::uint32_t x11_window = winId();
+
+	fprintf(stderr, "connection %p, window %#08x\n", xcb_connection, x11_window);
+
+	const QSize device_size = size() * devicePixelRatio();
+	core.reset();
+	core = BoxCore::from_xcb(xcb_connection, x11_window, device_size.width(), device_size.height());
+} catch (const std::exception& e) {
+	fprintf(stderr, "failed to recreate the viewport: %s", e.what());
+}
+
+void Viewport::updateSize() {
+	const QSize device_size = size() * devicePixelRatio();
+	core->configure(device_size.width(), device_size.height());
+}

ui/src/viewport.hxx

@@ -0,0 +1,28 @@
+#pragma once
+
+#include <QWidget>
+
+#include "api.hxx"
+
+class Viewport : public QWidget {
+	Q_OBJECT
+
+public:
+	explicit Viewport(QWidget* parent = nullptr, Qt::WindowFlags f = Qt::WindowFlags());
+	~Viewport() override;
+	QPaintEngine* paintEngine() const override;
+
+	void setView(RedrawArgs new_args);
+
+protected:
+	bool event(QEvent* event) override;
+	void paintEvent(QPaintEvent* event) override;
+	void resizeEvent(QResizeEvent* event) override;
+
+private:
+	BoxCore core;
+	RedrawArgs args = {};
+
+	void recreate();
+	void updateSize();
+};