diff --git a/attachments/14_command_buffers.cpp b/attachments/14_command_buffers.cpp
index aef837e6..03a4f51a 100644
--- a/attachments/14_command_buffers.cpp
+++ b/attachments/14_command_buffers.cpp
@@ -358,86 +358,6 @@ class HelloTriangleApplication {
         commandBuffer = std::move(vk::raii::CommandBuffers( device, allocInfo ).front());
     }
 
-    void recordCommandBuffer(uint32_t imageIndex) {
-        commandBuffer.begin( {} );
-        // Before starting rendering, transition the swapchain image to COLOR_ATTACHMENT_OPTIMAL
-        transition_image_layout(
-            imageIndex,
-            vk::ImageLayout::eUndefined,
-            vk::ImageLayout::eColorAttachmentOptimal,
-            {},                                                     // srcAccessMask (no need to wait for previous operations)
-            vk::AccessFlagBits2::eColorAttachmentWrite,                // dstAccessMask
-            vk::PipelineStageFlagBits2::eTopOfPipe,                   // srcStage
-            vk::PipelineStageFlagBits2::eColorAttachmentOutput        // dstStage
-        );
-        vk::ClearValue clearColor = vk::ClearColorValue(0.0f, 0.0f, 0.0f, 1.0f);
-        vk::RenderingAttachmentInfo attachmentInfo = {
-            .imageView = swapChainImageViews[imageIndex],
-            .imageLayout = vk::ImageLayout::eColorAttachmentOptimal,
-            .loadOp = vk::AttachmentLoadOp::eClear,
-            .storeOp = vk::AttachmentStoreOp::eStore,
-            .clearValue = clearColor
-        };
-        vk::RenderingInfo renderingInfo = {
-            .renderArea = { .offset = { 0, 0 }, .extent = swapChainExtent },
-            .layerCount = 1,
-            .colorAttachmentCount = 1,
-            .pColorAttachments = &attachmentInfo
-        };
-
-        commandBuffer.beginRendering(renderingInfo);
-        commandBuffer.bindPipeline(vk::PipelineBindPoint::eGraphics, *graphicsPipeline);
-        commandBuffer.setViewport(0, vk::Viewport(0.0f, 0.0f, static_cast<float>(swapChainExtent.width), static_cast<float>(swapChainExtent.height), 0.0f, 1.0f));
-        commandBuffer.setScissor( 0, vk::Rect2D( vk::Offset2D( 0, 0 ), swapChainExtent ) );
-        commandBuffer.draw(3, 1, 0, 0);
-        commandBuffer.endRendering();
-        // After rendering, transition the swapchain image to PRESENT_SRC
-        transition_image_layout(
-            imageIndex,
-            vk::ImageLayout::eColorAttachmentOptimal,
-            vk::ImageLayout::ePresentSrcKHR,
-            vk::AccessFlagBits2::eColorAttachmentWrite,                 // srcAccessMask
-            {},                                                      // dstAccessMask
-            vk::PipelineStageFlagBits2::eColorAttachmentOutput,        // srcStage
-            vk::PipelineStageFlagBits2::eBottomOfPipe                  // dstStage
-        );
-        commandBuffer.end();
-    }
-
-    void transition_image_layout(
-        uint32_t currentFrame,
-        vk::ImageLayout old_layout,
-        vk::ImageLayout new_layout,
-        vk::AccessFlags2 src_access_mask,
-        vk::AccessFlags2 dst_access_mask,
-        vk::PipelineStageFlags2 src_stage_mask,
-        vk::PipelineStageFlags2 dst_stage_mask
-        ) {
-        vk::ImageMemoryBarrier2 barrier = {
-            .srcStageMask = src_stage_mask,
-            .srcAccessMask = src_access_mask,
-            .dstStageMask = dst_stage_mask,
-            .dstAccessMask = dst_access_mask,
-            .oldLayout = old_layout,
-            .newLayout = new_layout,
-            .srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
-            .dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
-            .image = swapChainImages[currentFrame],
-            .subresourceRange = {
-                .aspectMask = vk::ImageAspectFlagBits::eColor,
-                .baseMipLevel = 0,
-                .levelCount = 1,
-                .baseArrayLayer = 0,
-                .layerCount = 1
-            }
-        };
-        vk::DependencyInfo dependency_info = {
-            .dependencyFlags = {},
-            .imageMemoryBarrierCount = 1,
-            .pImageMemoryBarriers = &barrier
-        };
-        commandBuffer.pipelineBarrier2(dependency_info);
-    }
     [[nodiscard]] vk::raii::ShaderModule createShaderModule(const std::vector<char>& code) const {
         vk::ShaderModuleCreateInfo createInfo{ .codeSize = code.size() * sizeof(char), .pCode = reinterpret_cast<const uint32_t*>(code.data()) };
         vk::raii::ShaderModule shaderModule{ device, createInfo };