@@ -1024,6 +1024,68 @@ on the module's [repository][Proton-Media-Converter-Github]
10241024[ Proton-Github ] : https://github.com/ValveSoftware/Proton
10251025[ Proton-Media-Converter-Github ] : https://github.com/ValveSoftware/Proton/tree/proton_5.13/media-converter
10261026
1027+ ### [ Rust GPU v0.1] [ rustgpu-v0.1 ]
1028+
1029+ ![ Rust GPU Sky] ( rustgpu.jpg )
1030+ _ Sky example in Rust GPU_
1031+
1032+ [ Rust GPU] [ rustgpu ] is a project backed by [ Embark Studios] [ embark ]
1033+ to make Rust a first-class language and ecosystem for building GPU code.
1034+
1035+ Although still in very early stages of development,
1036+ [ Rust GPU released v0.1 in October] [ rustgpu-v0.1 ] ,
1037+ and has already garnered over 2000 stars on Github.
1038+ Currently, compiling and running very simple shaders
1039+ works, and a significant portion of the core library also compiles. However,
1040+ many things aren't implemented yet: for example, while-loops and if-statements
1041+ work, but for-loops, iterators, and match/switch aren't supported yet! That
1042+ means that while being technically usable, Rust GPU is far from being
1043+ production-ready.
1044+
1045+ Motivation behind the project:
1046+
1047+ > Historically in games, GPU programming has been done through writing either
1048+ > HLSL, or to a lesser extent GLSL. These are simple programming languages that
1049+ > have evolved along with rendering APIs over the years. However, as game engines
1050+ > have evolved, these languages have failed to provide mechanisms for dealing with
1051+ > large codebases, and have generally stayed behind the curve compared to other
1052+ > programming languages.
1053+ >
1054+ > In part this is because it's a niche language for a niche market, and in part
1055+ > this has been because the industry as a whole has sunk quite a lot of time and
1056+ > effort into the status quo. While over-all better alternatives to both languages
1057+ > exist, none of them are in a place to replace HLSL or GLSL. Either because they
1058+ > are vendor locked, or because they don't support the traditional graphics
1059+ > pipeline. Examples of this include CUDA and OpenCL. And while attempts have been
1060+ > made to create language in this space, none of them have gained any notable
1061+ > traction in the gamedev community.
1062+
1063+ The code for the sky example above:
1064+
1065+ ``` rust
1066+ #[spirv(entry = " fragment"
1067+ pub fn main_fs (input : Input <Vec4 >, mut output : Output <Vec4 >) {
1068+ let dir : Vec3 = input . load (). truncate ();
1069+ let cs_pos = Vec4 (dir . 0 , - dir . 1 , 1.0 , 1.0 );
1070+ let ws_pos = {
1071+ let p = clip_to_world . mul_vec4 (cs_pos );
1072+ p . truncate () / p . 3
1073+ };
1074+ let dir = (ws_pos - eye_pos ). normalize ();
1075+ let color = sky (dir , sun_pos ); // evaluate Preetham sky model
1076+ output . store (color . extend (0.0 ))
1077+ }
1078+ ```
1079+
1080+ _ Discussions:
1081+ [ /r/rust] ( https://reddit.com/r/rust/comments/jg056t/introducing_rustgpu_v01 ) ,
1082+ [ Hacker News] ( https://news.ycombinator.com/item?id=24858172 ) ,
1083+ [ Twitter] ( https://twitter.com/repi/status/1319274584915365888 ) _
1084+
1085+ [ rustgpu ] : https://github.com/EmbarkStudios/rust-gpu
1086+ [ rustgpu-v0.1 ] : https://github.com/EmbarkStudios/rust-gpu/releases/tag/v0.1
1087+ [ embark ] : https://www.embark-studios.com/
1088+
10271089## Popular Workgroup Issues in Github
10281090
10291091<!-- Up to 10 links to interesting issues -->
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