Add depth buffering

graphics/src/vulkan_buffers.c

@@ -202,6 +202,7 @@ void update_uniform_buffers()
     struct vec3_t eye = {0};
     struct vec3_t center = {0};
     struct vec3_t up = {0};
+    struct vec3_t rotation_vec = {1.0f, 0.0f, 0.0f};
     float fovy;
     float z_near;
     float z_far;
@@ -214,7 +215,7 @@ void update_uniform_buffers()
     z_near = 0.1f;
     z_far = 20.0f;
 
-    ubo.model = rse_math_uniform_mat4();
+    ubo.model = rse_math_rotate(rse_math_uniform_mat4(), rse_math_deg_to_radians(0.0f), rotation_vec);
     ubo.view = rse_math_look_at(&eye, &center, &up);
     ubo.proj = rse_math_perspective(fovy,
                             g_vulkan_state.swapchain_extent.width / (float)g_vulkan_state.swapchain_extent.height,
@@ -330,13 +331,20 @@ uint8_t record_command_buffer(uint32_t image_index)
 {
     VkCommandBuffer command_buffer = g_vulkan_state.command_buffers[g_vulkan_state.current_frame];
     VkCommandBufferBeginInfo begin_info = {};
-    VkClearValue clear_color = {{{0.0f, 0.0f, 0.0f, 1.0f}}};
     VkRenderPassBeginInfo render_pass_info = {};
     VkViewport viewport = {};
     VkRect2D scissor = {};
     VkDeviceSize offsets[] = {0};
+    VkClearValue clear_values[2] = {}; //For color and depth stencil
     size_t i = 0U;
 
+    clear_values[0].color.float32[0] = 0.0f;
+    clear_values[0].color.float32[1] = 0.0f;
+    clear_values[0].color.float32[2] = 0.0f;
+
+    clear_values[1].depthStencil.depth = 1.0f;
+    clear_values[1].depthStencil.stencil = 0.0f;
+
     begin_info.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO;
     begin_info.flags = 0;
     begin_info.pInheritanceInfo = NULL;
@@ -352,8 +360,8 @@ uint8_t record_command_buffer(uint32_t image_index)
     render_pass_info.renderArea.offset.x = 0;
     render_pass_info.renderArea.offset.y = 0;
     render_pass_info.renderArea.extent = g_vulkan_state.swapchain_extent;
-    render_pass_info.clearValueCount = 1;
-    render_pass_info.pClearValues = &clear_color;
+    render_pass_info.clearValueCount = 2;
+    render_pass_info.pClearValues = clear_values;
 
     vkCmdBeginRenderPass(command_buffer, &render_pass_info, VK_SUBPASS_CONTENTS_INLINE);
     vkCmdBindPipeline(command_buffer, VK_PIPELINE_BIND_POINT_GRAPHICS, g_vulkan_state.graphics_pipeline);