private void createCommandBuffers()
{
int commandBuffersCount = swapChainFramebuffers.Length;
commandBuffers = new VkCommandBuffer[commandBuffersCount];
VkCommandBufferAllocateInfo allocInfo = new VkCommandBufferAllocateInfo();
allocInfo.sType = VkStructureType.VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO;
allocInfo.commandPool = commandPool;
allocInfo.level = VkCommandBufferLevel.VK_COMMAND_BUFFER_LEVEL_PRIMARY;
allocInfo.commandBufferCount = commandBuffersCount;
VkResult result = Vulkan.vkAllocateCommandBuffers(device, allocInfo, commandBuffers);
if (result != VkResult.VK_SUCCESS)
{
throw Program.Throw("failed to allocate command buffers!", result);
}
for (int i = 0; i < commandBuffersCount; i++)
{
VkCommandBufferBeginInfo beginInfo = new VkCommandBufferBeginInfo();
beginInfo.sType = VkStructureType.VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO;
beginInfo.flags = VkCommandBufferUsageFlagBits.VK_COMMAND_BUFFER_USAGE_SIMULTANEOUS_USE_BIT;
Vulkan.vkBeginCommandBuffer(commandBuffers[i], beginInfo);
VkRenderPassBeginInfo renderPassInfo = new VkRenderPassBeginInfo();
renderPassInfo.sType = VkStructureType.VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO;
renderPassInfo.renderPass = renderPass;
renderPassInfo.framebuffer = swapChainFramebuffers[i];
renderPassInfo.renderArea.offset = VkOffset2D.Create(0, 0);
renderPassInfo.renderArea.extent = swapChainExtent;
VkClearValue clearColor = VkClearValue.Create(0.01f, 0.03f, 0.01f, 1.0f);
renderPassInfo.clearValueCount = 1;
renderPassInfo.pClearValues = new VkClearValue[] { clearColor };
Vulkan.vkCmdBeginRenderPass(commandBuffers[i], renderPassInfo, VkSubpassContents.VK_SUBPASS_CONTENTS_INLINE);
Vulkan.vkCmdBindPipeline(commandBuffers[i], VkPipelineBindPoint.VK_PIPELINE_BIND_POINT_GRAPHICS, graphicsPipeline);
VkBuffer[] vertexBuffers = new VkBuffer[] { vertexBuffer };
int[] offsets = new int[] { 0 };
Vulkan.vkCmdBindVertexBuffers(commandBuffers[i], 0, 1, vertexBuffers, offsets);
Vulkan.vkCmdDraw(commandBuffers[i], vertices.Length, 1, 0, 0);
Vulkan.vkCmdEndRenderPass(commandBuffers[i]);
result = Vulkan.vkEndCommandBuffer(commandBuffers[i]);
if (result != VkResult.VK_SUCCESS)
{
throw Program.Throw("failed to record command buffer!", result);
}
}
}