Part generated by gemini with antigravity.

Converted to bindless first step

JulietApp/main.cpp

@@ -43,6 +43,12 @@ namespace
     const char* GameFunctionTable[] = { "GameInit", "GameShutdown", "GameUpdate" };
 } // namespace
 
+struct Vertex
+{
+    float Position[2];
+    float Color[4];
+};
+
 void JulietApplication::Init()
 {
     Log(LogLevel::Message, LogCategory::Tool, "Initializing Juliet Application...");
@@ -98,6 +104,17 @@ void JulietApplication::Init()
                 Running = false;
             }
 
+            // Create Buffers
+            BufferCreateInfo bufferCI = {};
+            bufferCI.Size             = 256;
+            bufferCI.Usage            = BufferUsage::StructuredBuffer; // Changed to StructuredBuffer As Requested
+            ConstantBuffer            = CreateGraphicsBuffer(GraphicsDevice, bufferCI);
+
+            TransferBufferCreateInfo transferCI = {};
+            transferCI.Size                     = 256;
+            transferCI.Usage                    = TransferBufferUsage::Upload;
+            TransferBuffer                      = CreateGraphicsTransferBuffer(GraphicsDevice, transferCI);
+
             if (vertexShader)
             {
                 DestroyShader(GraphicsDevice, vertexShader);
@@ -138,6 +155,14 @@ void JulietApplication::Shutdown()
     {
         DestroyGraphicsPipeline(GraphicsDevice, GraphicsPipeline);
     }
+    if (ConstantBuffer)
+    {
+        DestroyGraphicsBuffer(GraphicsDevice, ConstantBuffer);
+    }
+    if (TransferBuffer)
+    {
+        DestroyGraphicsTransferBuffer(GraphicsDevice, TransferBuffer);
+    }
 
     if (MainWindow && GraphicsDevice)
     {
@@ -254,9 +279,38 @@ void JulietApplication::Update()
         colorTargetInfo.LoadOperation   = LoadOperation::Clear;
         colorTargetInfo.StoreOperation  = StoreOperation::Store;
 
+        if (ConstantBuffer && TransferBuffer)
+        {
+            void* ptr = MapGraphicsTransferBuffer(GraphicsDevice, TransferBuffer);
+            if (ptr)
+            {
+                Vertex* vertices = static_cast<Vertex*>(ptr);
+
+                // Triangle 1
+                vertices[0] = { { -0.5f, -0.5f }, { 1.0f, 0.0f, 0.0f, 1.0f } }; // Red
+                vertices[1] = { { 0.0f, 0.5f }, { 0.0f, 1.0f, 0.0f, 1.0f } };   // Green
+                vertices[2] = { { 0.5f, -0.5f }, { 0.0f, 0.0f, 1.0f, 1.0f } };  // Blue
+
+                // Triangle 2
+                vertices[3] = { { -0.5f, 0.5f }, { 1.0f, 1.0f, 0.0f, 1.0f } }; // Yellow
+                vertices[4] = { { 0.0f, 0.8f }, { 0.0f, 1.0f, 1.0f, 1.0f } };  // Cyan
+                vertices[5] = { { 0.5f, 0.5f }, { 1.0f, 0.0f, 1.0f, 1.0f } };  // Magenta
+
+                UnmapGraphicsTransferBuffer(GraphicsDevice, TransferBuffer);
+            }
+
+            CopyBuffer(cmdList, ConstantBuffer, TransferBuffer, 256);
+            TransitionBufferToReadable(cmdList, ConstantBuffer);
+        }
+
         RenderPass* renderPass = BeginRenderPass(cmdList, colorTargetInfo);
         BindGraphicsPipeline(renderPass, GraphicsPipeline);
-        DrawPrimitives(renderPass, 3, 1, 0, 0);
+
+        // Pass descriptor index via Push Constants AFTER finding the pipeline (RootSignature)
+        uint32 descriptorIndex = GetDescriptorIndex(GraphicsDevice, ConstantBuffer);
+        SetPushConstants(cmdList, ShaderStage::Vertex, 0, 1, &descriptorIndex);
+
+        DrawPrimitives(renderPass, 6, 1, 0, 0);
         EndRenderPass(renderPass);
     }