1 files changed, 25 insertions, 0 deletions
diff --git a/assets/shaders/VkPipelineTest.slang b/assets/shaders/VkPipelineTest.slang
new file mode 100644
index 0000000..f4d1897
--- /dev/null
+++ b/assets/shaders/VkPipelineTest.slang
@@ -0,0 +1,25 @@
+// Minimal shader used only to verify the Vulkan graphics-pipeline path (SPIR-V
+// module -> pipeline -> draw -> read-back). Draws a full-screen gradient
+// triangle from the vertex id, so it needs no vertex buffer, UBO, or sampler.
+
+struct VSOutput
+{
+    float4 position : SV_Position;
+    float3 color    : COLOR0;
+};
+
+[shader("vertex")]
+VSOutput vertexMain(uint vid : SV_VertexID)
+{
+    float2 p = float2(float((vid << 1) & 2), float(vid & 2));
+    VSOutput output;
+    output.position = float4(p * 2.0 - 1.0, 0.0, 1.0);
+    output.color    = float3(p, 0.5);
+    return output;
+}
+
+[shader("fragment")]
+float4 fragmentMain(VSOutput input) : SV_Target
+{
+    return float4(input.color, 1.0);
+}