Introduce wgpu based re_renderer (experimental!)

Cargo.toml

@@ -24,12 +24,12 @@ opt-level = 2
 debug = true
 
 [patch.crates-io]
-# 2022-10-06 - wgpu on web
-eframe = { git = "https://github.com/emilk/egui", rev = "3ec170cc1e2309345df04b5e2a083b3b452c012f" }
-egui = { git = "https://github.com/emilk/egui", rev = "3ec170cc1e2309345df04b5e2a083b3b452c012f" }
-egui_extras = { git = "https://github.com/emilk/egui", rev = "3ec170cc1e2309345df04b5e2a083b3b452c012f" }
-egui_glow = { git = "https://github.com/emilk/egui", rev = "3ec170cc1e2309345df04b5e2a083b3b452c012f" }
-egui-wgpu = { git = "https://github.com/emilk/egui", rev = "3ec170cc1e2309345df04b5e2a083b3b452c012f" }
+# 2022-10-07 - wgpu update
+eframe = { git = "https://github.com/emilk/egui", rev = "f61044cef7ae0d127f8608ac0c8c129aca00a0f2" }
+egui = { git = "https://github.com/emilk/egui", rev = "f61044cef7ae0d127f8608ac0c8c129aca00a0f2" }
+egui_extras = { git = "https://github.com/emilk/egui", rev = "f61044cef7ae0d127f8608ac0c8c129aca00a0f2" }
+egui_glow = { git = "https://github.com/emilk/egui", rev = "f61044cef7ae0d127f8608ac0c8c129aca00a0f2" }
+egui-wgpu = { git = "https://github.com/emilk/egui", rev = "f61044cef7ae0d127f8608ac0c8c129aca00a0f2" }
 
 # Because gltf hasn't published a new version: https://github.com/gltf-rs/gltf/issues/357
 gltf = { git = "https://github.com/rerun-io/gltf", rev = "3c14ded73755d1ce9e47010edb06db63cb7e2cca" }

crates/re_renderer/Cargo.toml

@@ -0,0 +1,16 @@
+[package]
+name = "re_renderer"
+version.workspace = true
+edition.workspace = true
+rust-version.workspace = true
+license.workspace = true
+publish = false
+
+[dependencies]
+
+
+[target.'cfg(not(target_arch = "wasm32"))'.dependencies]
+wgpu = { version="0.14", default-features = false }
+
+[target.'cfg(target_arch = "wasm32")'.dependencies]
+wgpu = { version="0.14", default-features = false, features = ["webgl"] }

crates/re_renderer/README.md

@@ -0,0 +1,3 @@
+The Rerun renderer
+
+A [wgpu](https://github.com/gfx-rs/wgpu/) based renderer for all your visualization needs.

crates/re_renderer/shader/test_triangle.wgsl

@@ -0,0 +1,32 @@
+
+struct VertexOut {
+    @location(0) color: vec4<f32>,
+    @builtin(position) position: vec4<f32>,
+};
+
+var<private> v_positions: array<vec2<f32>, 3> = array<vec2<f32>, 3>(
+    vec2<f32>(0.0, 1.0),
+    vec2<f32>(1.0, -1.0),
+    vec2<f32>(-1.0, -1.0),
+);
+
+var<private> v_colors: array<vec4<f32>, 3> = array<vec4<f32>, 3>(
+    vec4<f32>(1.0, 0.0, 0.0, 1.0),
+    vec4<f32>(0.0, 1.0, 0.0, 1.0),
+    vec4<f32>(0.0, 0.0, 1.0, 1.0),
+);
+
+@vertex
+fn vs_main(@builtin(vertex_index) v_idx: u32) -> VertexOut {
+    var out: VertexOut;
+
+    out.position = vec4<f32>(v_positions[v_idx], 0.0, 1.0);
+    out.color = v_colors[v_idx];
+
+    return out;
+}
+
+@fragment
+fn fs_main(in: VertexOut) -> @location(0) vec4<f32> {
+    return in.color;
+}