some progress on egui

1 files changed, 43 insertions, 0 deletions

diff --git a/client/src/ui.wgsl b/client/src/ui.wgsl
new file mode 100644
index 0000000..174f20c
--- /dev/null
+++ b/client/src/ui.wgsl
@@ -0,0 +1,43 @@
+//    wearechat - generic multiplayer game with voip
+//    Copyright (C) 2025 metamuffin
+//
+//    This program is free software: you can redistribute it and/or modify
+//    it under the terms of the GNU Affero General Public License as published by
+//    the Free Software Foundation, version 3 of the License only.
+//
+//    This program is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//    GNU Affero General Public License for more details.
+//
+//    You should have received a copy of the GNU Affero General Public License
+//    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+struct VertexIn {
+    @location(0) pos: vec2<f32>,
+    @location(1) uv: vec2<f32>,
+    @location(2) color: vec3<f32>,
+}
+struct VertexOut {
+    @builtin(position) clip: vec4<f32>,
+    @location(0) uv: vec2<f32>,
+    @location(1) color: vec3<f32>,
+}
+
+@group(0) @binding(0) var texture: texture_2d<f32>;
+@group(0) @binding(1) var texture_sampler: sampler;
+var<push_constant> project: mat4x4<f32>;
+
+@vertex
+fn vs_main(vi: VertexIn) -> VertexOut {
+    var clip = project * vec4(vi.pos, 0., -1.);
+    clip /= clip.w;
+    clip.x *= -1.;
+    clip.y *= -1.;
+    let vo = VertexOut(clip, vi.uv, vi.color);
+    return vo;
+}
+@fragment
+fn fs_main(vo: VertexOut) -> @location(0) vec4<f32> {
+    return textureSample(texture, texture_sampler, vo.uv) * vec4(vo.color, 1.);
+}