asdf

samples/api/texture_loading/texture_loading.cpp

@@ -41,6 +41,7 @@ TextureLoading::~TextureLoading()
 		vkDestroyPipelineLayout(get_device().get_handle(), pipeline_layout, nullptr);
 		vkDestroyPipelineLayout(get_device().get_handle(), pipeline_layout_bg, nullptr);
 		vkDestroyDescriptorSetLayout(get_device().get_handle(), descriptor_set_layout, nullptr);
+		vkDestroyDescriptorSetLayout(get_device().get_handle(), descriptor_set_layout_bg, nullptr);
 	}
 
 	destroy_texture(texture);
@@ -483,6 +484,7 @@ void TextureLoading::build_command_buffers()
 		VkRect2D scissor = vkb::initializers::rect2D(width, height, 0, 0);
 		vkCmdSetScissor(draw_cmd_buffers[i], 0, 1, &scissor);
 
+		vkCmdBindDescriptorSets(draw_cmd_buffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipeline_layout_bg, 0, 1, &descriptor_set_bg, 0, NULL);
 		vkCmdBindPipeline(draw_cmd_buffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelines.background);
 		vkCmdDraw(draw_cmd_buffers[i], 6, 1, 0, 0);
 
@@ -557,7 +559,7 @@ void TextureLoading::setup_descriptor_pool()
 	std::vector<VkDescriptorPoolSize> pool_sizes =
 	{
 		vkb::initializers::descriptor_pool_size(VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, 1),
-		vkb::initializers::descriptor_pool_size(VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, 1) };
+		vkb::initializers::descriptor_pool_size(VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, 2) };
 
 	VkDescriptorPoolCreateInfo descriptor_pool_create_info =
 		vkb::initializers::descriptor_pool_create_info(
@@ -570,9 +572,27 @@ void TextureLoading::setup_descriptor_pool()
 
 void TextureLoading::setup_descriptor_set_layout_bg()
 {
-	VkPipelineLayoutCreateInfo layout_info{
+	std::vector<VkDescriptorSetLayoutBinding> set_layout_bindings =
-		.sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO };
+	{
-	vkCreatePipelineLayout(get_device().get_handle(), &layout_info, nullptr, &pipeline_layout_bg);
+		// Binding 1 : Fragment shader image sampler
+		vkb::initializers::descriptor_set_layout_binding(
+			VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
+			VK_SHADER_STAGE_FRAGMENT_BIT,
+			0) };
+
+	VkDescriptorSetLayoutCreateInfo descriptor_layout =
+		vkb::initializers::descriptor_set_layout_create_info(
+			set_layout_bindings.data(),
+			static_cast<uint32_t>(set_layout_bindings.size()));
+
+	VK_CHECK(vkCreateDescriptorSetLayout(get_device().get_handle(), &descriptor_layout, nullptr, &descriptor_set_layout_bg));
+
+	VkPipelineLayoutCreateInfo pipeline_layout_create_info =
+		vkb::initializers::pipeline_layout_create_info(
+			&descriptor_set_layout_bg,
+			1);
+
+	VK_CHECK(vkCreatePipelineLayout(get_device().get_handle(), &pipeline_layout_create_info, nullptr, &pipeline_layout_bg));
 }
 
 void TextureLoading::setup_descriptor_set_layout()
@@ -643,6 +663,35 @@ void TextureLoading::setup_descriptor_set()
 	vkUpdateDescriptorSets(get_device().get_handle(), static_cast<uint32_t>(write_descriptor_sets.size()), write_descriptor_sets.data(), 0, NULL);
 }
 
+void TextureLoading::setup_descriptor_set_bg()
+{
+	VkDescriptorSetAllocateInfo alloc_info =
+		vkb::initializers::descriptor_set_allocate_info(
+			descriptor_pool,
+			&descriptor_set_layout_bg,
+			1);
+
+	VK_CHECK(vkAllocateDescriptorSets(get_device().get_handle(), &alloc_info, &descriptor_set_bg));
+
+	
+
+	VkDescriptorImageInfo image_descriptor;
+	image_descriptor.imageView = cam_text.view;                
+	image_descriptor.sampler = cam_text.sampler;             
+	image_descriptor.imageLayout = cam_text.image_layout;       
+
+	std::vector<VkWriteDescriptorSet> write_descriptor_sets =
+	{
+			vkb::initializers::write_descriptor_set(
+				descriptor_set_bg,
+				VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
+				0, 
+				&image_descriptor) 
+	};
+
+	vkUpdateDescriptorSets(get_device().get_handle(), static_cast<uint32_t>(write_descriptor_sets.size()), write_descriptor_sets.data(), 0, NULL);
+}
+
 void TextureLoading::prepare_pipeline_bg()
 {
 	VkPipelineInputAssemblyStateCreateInfo input_assembly_state =
@@ -864,6 +913,7 @@ bool TextureLoading::prepare(const vkb::ApplicationOptions& options)
 	prepare_pipeline_bg();
 	setup_descriptor_pool();
 	setup_descriptor_set();
+	setup_descriptor_set_bg();
 	build_command_buffers();
 	prepared = true;
 	return true;

samples/api/texture_loading/texture_loading.h

@@ -75,7 +75,10 @@ public:
 	VkPipelineLayout      pipeline_layout;
 	VkPipelineLayout      pipeline_layout_bg;
 	VkDescriptorSet       descriptor_set;
+	VkDescriptorSet       descriptor_set_bg;
+
 	VkDescriptorSetLayout descriptor_set_layout;
+	VkDescriptorSetLayout descriptor_set_layout_bg;
 
 	TextureLoading();
 	~TextureLoading();
@@ -89,6 +92,7 @@ public:
 	void         setup_descriptor_set_layout();
 	void         setup_descriptor_set_layout_bg();
 	void         setup_descriptor_set();
+	void         setup_descriptor_set_bg();
 	void         prepare_pipelines();
 	void         prepare_uniform_buffers();
 	void         update_uniform_buffers();