From e5d67bf7e36671d290b19064f58bc11616c05b8b Mon Sep 17 00:00:00 2001
From: HampusM <hampus@hampusmat.com>
Date: Fri, 5 Jun 2026 21:50:56 +0200
Subject: feat(engine): add imgui ui support

---
 engine/res/imgui_shader.slang | 54 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100644 engine/res/imgui_shader.slang

(limited to 'engine/res')

diff --git a/engine/res/imgui_shader.slang b/engine/res/imgui_shader.slang
new file mode 100644
index 0000000..6ce51d6
--- /dev/null
+++ b/engine/res/imgui_shader.slang
@@ -0,0 +1,54 @@
+struct Vertex
+{
+    float3 pos;
+    float4 color;
+    float2 texture_coords;
+};
+
+struct VertexData
+{
+    float4 color;
+    float2 texture_coords;
+};
+
+struct VertexStageOutput
+{
+    VertexData vertex_data : VertexData;
+    float4 sv_position : SV_Position;
+};
+
+struct Fragment
+{
+    float4 color;
+};
+
+cbuffer Uniforms
+{
+    float4x4 projection;
+};
+
+Sampler2D main_texture;
+
+[shader("vertex")]
+VertexStageOutput vertex_main(Vertex vertex: VERTEX)
+{
+    VertexStageOutput stage_output;
+
+    stage_output.sv_position = mul(projection, float4(vertex.pos.xy, 0.f, 1.f));
+
+    stage_output.vertex_data.color = vertex.color;
+    stage_output.vertex_data.texture_coords = vertex.texture_coords;
+
+    return stage_output;
+}
+
+[shader("fragment")]
+Fragment fragment_main(VertexData vertex_data: VertexData) : SV_Target
+{
+    Fragment fragment;
+
+    fragment.color = vertex_data.color * main_texture.Sample(vertex_data.texture_coords);
+
+    return fragment;
+}
+
-- 
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