Add depth buffering

graphics/src/rse_graphics.c

@@ -47,14 +47,15 @@ uint8_t rse_graphics_run(void)
     tex_id_2 = rse_load_texture("../../test_image.png");
 
     // FIXME: Temporary array of vertices, for testing purposes
-    struct rse_vertex_t vertices[] = {{{-0.5f, -0.5f, 0.0f}, {1.0f, 0.0f, 1.0f}, {1.0f, 0.0f}},
+    struct rse_vertex_t vertices[] = {{{-0.5f, -0.5f, 0.0f}, {1.0f, 0.0f, 0.0f}, {0.0f, 0.0f}},
-                                        {{0.5f, -0.5f, 0.0f}, {0.0f, 1.0f, 1.0f}, {0.0f, 0.0f}},
+                                    {{0.5f, -0.5f, 0.0f}, {0.0f, 1.0f, 0.0f}, {1.0f, 0.0f}},
-                                        {{0.5f, 0.5f, 0.0f}, {0.0f, 0.0f, 1.0f}, {0.0f, 1.0f}},
+                                    {{0.5f, 0.5f, 0.0f}, {0.0f, 0.0f, 1.0f}, {1.0f, 1.0f}},
-                                        {{-0.5f, 0.5f, 0.0f}, {1.0f, 0.0f, 1.0f}, {1.0f, 1.0f}}};
+                                    {{-0.5f, 0.5f, 0.0f}, {1.0f, 1.0f, 1.0f}, {0.0f, 1.0f}}};
-    struct rse_vertex_t vertices2[] = {{{-0.5f, -0.5f, 0.0f}, {1.0f, 0.0f, 1.0f}, {1.0f, 0.0f}},
+
-                                        {{0.5f, -0.5f, 0.0f}, {0.0f, 1.0f, 0.0f}, {0.0f, 0.0f}},
+    struct rse_vertex_t vertices2[] = {{{-0.5f, -0.5f, -0.5f}, {1.0f, 0.0f, 0.0f}, {0.0f, 0.0f}},
-                                        {{0.5f, 0.5f, 0.0f}, {0.0f, 1.0f, 0.0f}, {0.0f, 1.0f}},
+                                    {{0.5f, -0.5f, -0.5f}, {0.0f, 1.0f, 0.0f}, {1.0f, 0.0f}},
-                                        {{-0.5f, 0.5f, 0.0f}, {1.0f, 1.0f, 0.0f}, {1.0f, 1.0f}}};
+                                    {{0.5f, 0.5f, -0.5f}, {0.0f, 0.0f, 1.0f}, {1.0f, 1.0f}},
+                                    {{-0.5f, 0.5f, -0.5f}, {1.0f, 1.0f, 1.0f}, {0.0f, 1.0f}}};
 
     // FIXME: Temporary array of vertices, for testing purposes
     uint16_t indices[] = {0, 1, 2, 2, 3, 0};
@@ -68,7 +69,7 @@ uint8_t rse_graphics_run(void)
     });
 
     create_mesh_instance(mesh_id, (struct rse_instance_data_t){
-        {-1.0f, 0.0f, 0.0f},
+        {-1.0f, 0.0f, 0.3f},
         {0.0f, 0.0f, 0.0f},
         1.0f,
         tex_id_2

graphics/src/rse_math.c

@@ -29,6 +29,27 @@ static float scalar_cross_vec3(const struct vec3_t* vec1, const struct vec3_t* v
           +(vec1->z * vec2->z);
 }
 
+// static struct mat4_t mat4_times_vector3_t(const struct mat4_t* mat, const struct vec3_t* vec)
+// {
+//     /* We can't do that, mathematically speaking, but we can just assume that the 4th
+//      * element of vector is just 1. */
+//     struct mat4_t result = rse_math_uniform_mat4();
+
+//     result.x_1 = mat->x_1 * vec->x;
+//     result.x_2 = mat->x_2 * vec->y;
+//     result.x_3 = mat->x_3 * vec->z;
+
+//     result.y_1 = mat->y_1 * vec->x;
+//     result.y_2 = mat->y_2 * vec->y;
+//     result.y_3 = mat->y_3 * vec->z;
+
+//     result.z_1 = mat->z_1 * vec->x;
+//     result.z_2 = mat->z_2 * vec->y;
+//     result.z_3 = mat->z_3 * vec->z;
+
+//     return result;
+// }
+
 float rse_math_deg_to_radians(float degrees)
 {
     return degrees * (PI/180.0f);
@@ -124,3 +145,25 @@ struct mat4_t rse_math_look_at(const struct vec3_t* eye, const struct vec3_t* ce
 
     return result;
 }
+
+struct mat4_t rse_math_rotate(struct mat4_t matrix, float radians, struct vec3_t rotation_vector)
+{
+    struct mat4_t result = rse_math_uniform_mat4();
+    float cos = cosf(radians);
+    float sin = sinf(radians);
+
+    //TODO: Switch to quaternion
+    result.x_1 = cos + powf(rotation_vector.x, 2.0f) * (1 - cos);
+    result.x_2 = (rotation_vector.x * rotation_vector.y * (1 - cos)) - (rotation_vector.z * sin);
+    result.x_3 = (rotation_vector.x * rotation_vector.z * (1 - cos)) + (rotation_vector.y * sin);
+
+    result.y_1 = (rotation_vector.y * rotation_vector.x * (1 - cos)) + rotation_vector.z * sin;
+    result.y_2 = cos + (powf(rotation_vector.y, 2) * (1 - cos));
+    result.y_3 = (rotation_vector.y * rotation_vector.z * (1 - cos)) - (rotation_vector.x * sin);
+
+    result.z_1 = (rotation_vector.z * rotation_vector.x * (1 - cos)) - (rotation_vector.y * sin);
+    result.z_2 = (rotation_vector.z * rotation_vector.y * (1 - cos)) + (rotation_vector.x * sin);
+    result.z_3 = cos + (powf(rotation_vector.z, 2.0f) * (1 - cos));
+
+    return result;
+}

graphics/src/rse_math.h

@@ -113,6 +113,15 @@ struct mat4_t rse_math_look_at(const struct vec3_t* eye, const struct vec3_t* ce
  */
 struct mat4_t rse_math_perspective(float fovy_rad, float aspect_ratio, float z_near, float z_far);
 
+/**
+ * @brief Rotate matrix around vector for radians degrees
+ *
+ * @param matrix Matrix to rotate
+ * @param radians Degrees
+ * @param rotation_vector Rotation vector
+ * @return struct mat4_t resulting matrix
+ */
+struct mat4_t rse_math_rotate(struct mat4_t matrix, float radians, struct vec3_t rotation_vector);
 #ifdef __cplusplus
 }
 #endif

graphics/src/rse_vulkan_image.c

@@ -37,8 +37,11 @@ struct rse_vulkan_image_t
 extern struct rse_vulkan_state_t g_vulkan_state;
 
 struct rse_vulkan_image_t g_texture_images[RSE_MAX_IMAGE_COUNT];
+
+struct rse_vulkan_image_t g_depth_image;
 VkSampler g_sampler;
 
+
 static uint8_t create_sampler()
 {
     VkSamplerCreateInfo create_info = {0};
@@ -73,6 +76,117 @@ static uint8_t create_sampler()
     return VULKAN_ERROR_NO_ERROR;
 }
 
+// static uint8_t has_stencil_component(VkFormat format) {
+//     return format == VK_FORMAT_D32_SFLOAT_S8_UINT || format == VK_FORMAT_D24_UNORM_S8_UINT;
+// }
+
+static VkFormat find_supported_format(const VkFormat* candidates,
+                                    size_t candidates_count,
+                                    VkImageTiling tiling,
+                                    VkFormatFeatureFlags features)
+{
+    size_t i = 0U;
+
+    for (i = 0U; i < candidates_count; ++i) {
+        VkFormatProperties props;
+        vkGetPhysicalDeviceFormatProperties(g_vulkan_state.physical_device, candidates[i], &props);
+
+        if (tiling == VK_IMAGE_TILING_LINEAR && (props.linearTilingFeatures & features) == features) {
+            return candidates[i];
+        } else if (tiling == VK_IMAGE_TILING_OPTIMAL && (props.optimalTilingFeatures & features) == features) {
+            return candidates[i];
+        }
+    }
+
+    LOGE("Failed to find correct format");
+    //FIXME: Add error handling
+    return 0;
+}
+
+static uint8_t create_depth_resources()
+{
+    uint8_t status = VULKAN_ERROR_NO_ERROR;
+    VkFormat depth_format = {0};
+    VkExtent3D image_extent = {0};
+    VkImageCreateInfo image_info = {0};
+    VmaAllocationCreateInfo alloc_create_info = {0};
+    VkImageViewCreateInfo image_view_create_info = {0};
+        VkSurfaceCapabilitiesKHR physical_device_surface_capabilities;
+
+
+    depth_format = find_depth_format();
+    vkGetPhysicalDeviceSurfaceCapabilitiesKHR(g_vulkan_state.physical_device,
+                                                g_vulkan_state.surface,
+                                                &physical_device_surface_capabilities);
+
+    /*TODO: Remove boilerplate code */
+
+    image_extent.width = physical_device_surface_capabilities.currentExtent.width;
+    image_extent.height = physical_device_surface_capabilities.currentExtent.height;
+    image_extent.depth = 1U;
+
+    image_info.sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO;
+    image_info.pNext = NULL;
+    image_info.flags = 0U;
+    image_info.imageType = VK_IMAGE_TYPE_2D;
+    image_info.format = depth_format;
+    image_info.extent = image_extent;
+    image_info.mipLevels = 1U;
+    image_info.arrayLayers = 1U;
+    image_info.samples = VK_SAMPLE_COUNT_1_BIT; //TODO: Enable multisampling
+    image_info.tiling = VK_IMAGE_TILING_OPTIMAL;
+    image_info.usage = VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT;
+    image_info.sharingMode = VK_SHARING_MODE_EXCLUSIVE; //TODO: Change if used by more than one queue family
+    image_info.queueFamilyIndexCount = 0U;
+    image_info.pQueueFamilyIndices = NULL;
+    image_info.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
+
+    alloc_create_info.flags = 0U;
+    alloc_create_info.usage = VMA_MEMORY_USAGE_AUTO;
+    alloc_create_info.requiredFlags = 0U;
+    alloc_create_info.preferredFlags = 0U;
+    alloc_create_info.memoryTypeBits = 0U;
+    alloc_create_info.pool = NULL;
+    alloc_create_info.pUserData = NULL;
+    alloc_create_info.priority = 1.0f;
+
+    if (VK_SUCCESS != vmaCreateImage(g_vulkan_state.allocator,
+                                     &image_info,
+                                     &alloc_create_info,
+                                     &g_depth_image.image,
+                                     &g_depth_image.allocation,
+                                     &g_depth_image.allocation_info)) {
+        LOGF("Failed to create image");
+        return -1;
+    }
+
+    image_view_create_info.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO;
+    image_view_create_info.pNext = NULL;
+    image_view_create_info.flags = 0U;
+    image_view_create_info.image = g_depth_image.image;
+    image_view_create_info.viewType = VK_IMAGE_VIEW_TYPE_2D; /* 2D Texture */
+    image_view_create_info.format = depth_format;
+    image_view_create_info.components.a = VK_COMPONENT_SWIZZLE_IDENTITY;
+    image_view_create_info.components.r = VK_COMPONENT_SWIZZLE_IDENTITY;
+    image_view_create_info.components.g = VK_COMPONENT_SWIZZLE_IDENTITY;
+    image_view_create_info.components.b = VK_COMPONENT_SWIZZLE_IDENTITY;
+    image_view_create_info.subresourceRange.aspectMask = VK_IMAGE_ASPECT_DEPTH_BIT;
+    image_view_create_info.subresourceRange.baseMipLevel = 0U;
+    image_view_create_info.subresourceRange.levelCount = 1U;
+    image_view_create_info.subresourceRange.baseArrayLayer = 0U;
+    image_view_create_info.subresourceRange.layerCount = 1U;
+
+    if (VK_SUCCESS != vkCreateImageView(g_vulkan_state.device,
+                                        &image_view_create_info,
+                                        NULL,
+                                        &g_depth_image.image_view)) {
+        LOGF(vulkan_error_messages[VULKAN_SWAPCHAIN_IMVIEW_CREATION_FAILED]);
+        return VULKAN_ERROR_SWAPCHAIN_IMVIEW_CREATION_FAILED;
+    }
+
+    return status;
+}
+
 static VkDeviceSize format_to_pixel_size(VkFormat format)
 {
     switch (format)
@@ -278,6 +392,7 @@ uint8_t init_vulkan_images()
     // memset(g_texture_images, 0, sizeof(struct rse_vulkan_image_t) * RSE_MAX_IMAGE_COUNT);
 
     STATUS_CHECK(create_sampler());
+    STATUS_CHECK(create_depth_resources());
 
     return status;
 }
@@ -323,6 +438,9 @@ void rse_destroy_textures()
             vmaDestroyImage(g_vulkan_state.allocator, g_texture_images[i].image, g_texture_images[i].allocation);
         }
     }
+
+    vkDestroyImageView(g_vulkan_state.device, g_depth_image.image_view, NULL);
+    vmaDestroyImage(g_vulkan_state.allocator, g_depth_image.image, g_depth_image.allocation);
 }
 
 int8_t image_exists(uint8_t image_id) {
@@ -334,6 +452,12 @@ VkImageView rse_get_image_view(size_t image_id)
     return g_texture_images[image_id].image_view;
 }
 
+VkImageView rse_get_depth_image_view()
+{
+    return g_depth_image.image_view;
+}
+
+
 VkSampler rse_get_texture_sampler()
 {
     return g_sampler;
@@ -352,3 +476,17 @@ size_t get_textures_count()
 
     return count;
 }
+
+VkFormat find_depth_format()
+{
+    #define formats_count 3
+    VkFormat formats[formats_count] = {VK_FORMAT_D32_SFLOAT, VK_FORMAT_D32_SFLOAT_S8_UINT, VK_FORMAT_D24_UNORM_S8_UINT};
+
+    return find_supported_format(
+        formats,
+        formats_count,
+        VK_IMAGE_TILING_OPTIMAL,
+        VK_FORMAT_FEATURE_DEPTH_STENCIL_ATTACHMENT_BIT
+    );
+    #undef formats_count
+}

graphics/src/rse_vulkan_image.h

@@ -75,4 +75,8 @@ int8_t image_exists(uint8_t image_id);
  */
 size_t get_textures_count();
 
+VkFormat find_depth_format();
+
+VkImageView rse_get_depth_image_view();
+
 #endif /* RSE_TEXTURE_H */

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.clearValueCount = 2;
-    render_pass_info.pClearValues = &clear_color;
+    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);

graphics/src/vulkan_pipeline.c

@@ -220,10 +220,26 @@ uint8_t create_swapchain_image_views()
  */
 uint8_t create_render_pass()
 {
+    VkAttachmentDescription attachments[2] = {};
     VkAttachmentDescription color_attachment = {};
     VkAttachmentReference color_attachment_ref = {};
     VkSubpassDescription subpass = {};
     VkRenderPassCreateInfo renderpass_info = {};
+    VkAttachmentDescription depth_attachment = {};
+    VkAttachmentReference depth_attachment_ref = {};
+    VkSubpassDependency dependency = {};
+
+    depth_attachment.format = find_depth_format();
+    depth_attachment.samples = VK_SAMPLE_COUNT_1_BIT;
+    depth_attachment.loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
+    depth_attachment.storeOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
+    depth_attachment.stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
+    depth_attachment.stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
+    depth_attachment.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
+    depth_attachment.finalLayout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL;
+
+    depth_attachment_ref.attachment = 1;
+    depth_attachment_ref.layout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL;
 
     color_attachment.flags = 0U;
     color_attachment.format = IMAGE_FORMAT;
@@ -241,12 +257,26 @@ uint8_t create_render_pass()
     subpass.pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS;
     subpass.colorAttachmentCount = 1;
     subpass.pColorAttachments = &color_attachment_ref;
+    subpass.pDepthStencilAttachment = &depth_attachment_ref;
+
+    attachments[0] = color_attachment;
+    attachments[1] = depth_attachment;
+
+    dependency.srcSubpass = VK_SUBPASS_EXTERNAL;
+    dependency.dstSubpass = 0;
+    dependency.srcStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT | VK_PIPELINE_STAGE_EARLY_FRAGMENT_TESTS_BIT;
+    dependency.srcAccessMask = 0;
+    dependency.dstStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT | VK_PIPELINE_STAGE_EARLY_FRAGMENT_TESTS_BIT;
+    dependency.dstAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT | VK_ACCESS_DEPTH_STENCIL_ATTACHMENT_WRITE_BIT;
+
 
     renderpass_info.sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO;
-    renderpass_info.attachmentCount = 1;
+    renderpass_info.attachmentCount = 2;
-    renderpass_info.pAttachments = &color_attachment;
+    renderpass_info.pAttachments = attachments;
     renderpass_info.subpassCount = 1;
     renderpass_info.pSubpasses = &subpass;
+    renderpass_info.dependencyCount = 1;
+    renderpass_info.pDependencies = &dependency;
 
     if (VK_SUCCESS != vkCreateRenderPass(g_vulkan_state.device, &renderpass_info, NULL, &g_vulkan_state.render_pass)) {
         LOGF(vulkan_error_messages[VULKAN_RENDERPASS_CREATION_FAILED]);
@@ -340,6 +370,7 @@ uint8_t create_graphics_pipeline()
     VkPipelineMultisampleStateCreateInfo multisampling = {};
     VkPipelineColorBlendStateCreateInfo color_blending = {};
     VkPipelineDynamicStateCreateInfo dynamic_state = {};
+    VkPipelineDepthStencilStateCreateInfo depth_stencil = {};
 
     STATUS_CHECK(fill_shader_stages(shader_stages));
     fill_vertex_input_info(&vertex_input_info);
@@ -350,29 +381,41 @@ uint8_t create_graphics_pipeline()
     fill_color_blend_state_info(&color_blending);
     fill_dynamic_pipeline_state_info(&dynamic_state);
 
-    VkGraphicsPipelineCreateInfo pipelineInfo = {};
+    //TODO: Move to another function
-    pipelineInfo.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO;
+    depth_stencil.sType = VK_STRUCTURE_TYPE_PIPELINE_DEPTH_STENCIL_STATE_CREATE_INFO;
-    pipelineInfo.pNext = NULL;
+    depth_stencil.depthTestEnable = VK_TRUE;
-    pipelineInfo.flags = 0U;
+    depth_stencil.depthWriteEnable = VK_TRUE;
-    pipelineInfo.stageCount = SHADER_MODULES_COUNT;
+    depth_stencil.depthCompareOp = VK_COMPARE_OP_LESS;
-    pipelineInfo.pStages = shader_stages;
+    depth_stencil.depthBoundsTestEnable = VK_FALSE;
-    pipelineInfo.pVertexInputState = &vertex_input_info;
+    depth_stencil.minDepthBounds = 0.0f; // Optional
-    pipelineInfo.pInputAssemblyState = &input_assembly;
+    depth_stencil.maxDepthBounds = 1.0f; // Optional
-    pipelineInfo.pTessellationState = NULL;
+    depth_stencil.stencilTestEnable = VK_FALSE;
-    pipelineInfo.pViewportState = &viewport_state;
+    // depth_stencil.front = {0}; // Optional
-    pipelineInfo.pRasterizationState = &rasterizer;
+    // depth_stencil.back = {0}; // Optional
-    pipelineInfo.pMultisampleState = &multisampling;
+
-    pipelineInfo.pDepthStencilState = NULL;
+    VkGraphicsPipelineCreateInfo pipeline_info = {};
-    pipelineInfo.pColorBlendState = &color_blending;
+    pipeline_info.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO;
-    pipelineInfo.pDynamicState = &dynamic_state;
+    pipeline_info.pNext = NULL;
-    pipelineInfo.layout = g_vulkan_state.pipeline_layout;
+    pipeline_info.flags = 0U;
-    pipelineInfo.renderPass = g_vulkan_state.render_pass;
+    pipeline_info.stageCount = SHADER_MODULES_COUNT;
-    pipelineInfo.subpass = 0;
+    pipeline_info.pStages = shader_stages;
-    pipelineInfo.basePipelineHandle = VK_NULL_HANDLE;
+    pipeline_info.pVertexInputState = &vertex_input_info;
-    pipelineInfo.basePipelineIndex = -1;
+    pipeline_info.pInputAssemblyState = &input_assembly;
+    pipeline_info.pTessellationState = NULL;
+    pipeline_info.pViewportState = &viewport_state;
+    pipeline_info.pRasterizationState = &rasterizer;
+    pipeline_info.pMultisampleState = &multisampling;
+    pipeline_info.pDepthStencilState = &depth_stencil;
+    pipeline_info.pColorBlendState = &color_blending;
+    pipeline_info.pDynamicState = &dynamic_state;
+    pipeline_info.layout = g_vulkan_state.pipeline_layout;
+    pipeline_info.renderPass = g_vulkan_state.render_pass;
+    pipeline_info.subpass = 0;
+    pipeline_info.basePipelineHandle = VK_NULL_HANDLE;
+    pipeline_info.basePipelineIndex = -1;
 
     if (VK_SUCCESS !=
-        vkCreateGraphicsPipelines(g_vulkan_state.device, VK_NULL_HANDLE, 1, &pipelineInfo, NULL, &g_vulkan_state.graphics_pipeline)) {
+        vkCreateGraphicsPipelines(g_vulkan_state.device, VK_NULL_HANDLE, 1, &pipeline_info, NULL, &g_vulkan_state.graphics_pipeline)) {
         LOGF(vulkan_error_messages[VULKAN_GRAPHICSPIPELINE_CREATION_FAILED]);
         status = VULKAN_ERROR_GRAPHICSPIPELINE_CREATION_FAILED;
     }
@@ -395,12 +438,12 @@ uint8_t create_framebuffers()
     g_vulkan_state.swapchain_framebuffers = malloc(sizeof(VkFramebuffer) * g_swapchain_images_count);
 
     for (size_t i = 0; i < g_swapchain_images_count; i++) {
-        VkImageView attachments[] = {g_vulkan_state.swapchain_image_views[i]};
+        VkImageView attachments[] = {g_vulkan_state.swapchain_image_views[i], rse_get_depth_image_view()};
 
         VkFramebufferCreateInfo framebufferInfo = {};
         framebufferInfo.sType = VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO;
         framebufferInfo.renderPass = g_vulkan_state.render_pass;
-        framebufferInfo.attachmentCount = 1;
+        framebufferInfo.attachmentCount = 2;
         framebufferInfo.pAttachments = attachments;
         framebufferInfo.width = g_vulkan_state.swapchain_extent.width;
         framebufferInfo.height = g_vulkan_state.swapchain_extent.height;

tests/CMakeLists.txt

@@ -1,7 +1,7 @@
 find_package(Criterion)
 
 add_executable(tests
-src/rse_graphics_tests.c)
+src/rse_math_tests.c)
 
 target_include_directories(tests PRIVATE
 ${criterion_INCLUDE_DIR}

tests/src/rse_math_tests.c

@@ -177,3 +177,41 @@ Test(rse_math, perspective)
     cr_expect_float_eq(result.w_4, expected.w_4, 0.0001, "Expected w_4 %f, got %f", expected.w_4, result.w_4);
 
 }
+
+Test(rse_math, rotation)
+{
+    struct mat4_t matrix_to_rotate = rse_math_uniform_mat4();
+    struct vec3_t rotation_vector = {1.0f, 0.0f, 0.0f};
+    float rotation = 45.f;
+
+    struct mat4_t result = {0.0f};
+    struct mat4_t expected = rse_math_uniform_mat4();
+
+    expected.y_2 = 0.5253220;
+    expected.y_3 = -0.8509035;
+
+    expected.z_2 = 0.8509035;
+    expected.z_3 = 0.5253220;
+
+    result = rse_math_rotate(matrix_to_rotate, rotation, rotation_vector);
+
+    cr_expect_float_eq(result.x_1, expected.x_1, 0.0001, "Expected x_1 %f, got %f", expected.x_1, result.x_1);
+    cr_expect_float_eq(result.y_1, expected.y_1, 0.0001, "Expected y_1 %f, got %f", expected.y_1, result.y_1);
+    cr_expect_float_eq(result.z_1, expected.z_1, 0.0001, "Expected z_1 %f, got %f", expected.z_1, result.z_1);
+    cr_expect_float_eq(result.w_1, expected.w_1, 0.0001, "Expected w_1 %f, got %f", expected.w_1, result.w_1);
+
+    cr_expect_float_eq(result.x_2, expected.x_2, 0.0001, "Expected x_2 %f, got %f", expected.x_2, result.x_2);
+    cr_expect_float_eq(result.y_2, expected.y_2, 0.0001, "Expected y_2 %f, got %f", expected.y_2, result.y_2);
+    cr_expect_float_eq(result.z_2, expected.z_2, 0.0001, "Expected z_2 %f, got %f", expected.z_2, result.z_2);
+    cr_expect_float_eq(result.w_2, expected.w_2, 0.0001, "Expected w_2 %f, got %f", expected.w_2, result.w_2);
+
+    cr_expect_float_eq(result.x_3, expected.x_3, 0.0001, "Expected x_3 %f, got %f", expected.x_3, result.x_3);
+    cr_expect_float_eq(result.y_3, expected.y_3, 0.0001, "Expected y_3 %f, got %f", expected.y_3, result.y_3);
+    cr_expect_float_eq(result.z_3, expected.z_3, 0.0001, "Expected z_3 %f, got %f", expected.z_3, result.z_3);
+    cr_expect_float_eq(result.w_3, expected.w_3, 0.0001, "Expected w_3 %f, got %f", expected.w_3, result.w_3);
+
+    cr_expect_float_eq(result.x_4, expected.x_4, 0.0001, "Expected x_4 %f, got %f", expected.x_4, result.x_4);
+    cr_expect_float_eq(result.y_4, expected.y_4, 0.0001, "Expected y_4 %f, got %f", expected.y_4, result.y_4);
+    cr_expect_float_eq(result.z_4, expected.z_4, 0.0001, "Expected z_4 %f, got %f", expected.z_4, result.z_4);
+    cr_expect_float_eq(result.w_4, expected.w_4, 0.0001, "Expected w_4 %f, got %f", expected.w_4, result.w_4);
+}