asdf

samples/api/texture_loading/CMakeLists.txt

@@ -28,6 +28,8 @@ add_sample_with_tags(
     SHADER_FILES_GLSL
         "texture_loading/glsl/texture.vert"
         "texture_loading/glsl/texture.frag"
+        "texture_loading/glsl/bg.vert"
+        "texture_loading/glsl/bg.frag"
     SHADER_FILES_HLSL
         "texture_loading/hlsl/texture.vert.hlsl"
         "texture_loading/hlsl/texture.frag.hlsl")

samples/api/texture_loading/texture_loading.cpp

@@ -67,6 +67,7 @@ void TextureLoading::build_command_buffers()
 	VkClearValue clear_values[2];
 	clear_values[0].color = default_clear_color;
 	clear_values[1].depthStencil = { 1.0f, 0 }; // 使用 1.0f 作为深度清除值
+	//clear_values[1].depthStencil = { 0, 0 }; // 使用 1.0f 作为深度清除值
 
 	VkRenderPassBeginInfo render_pass_begin_info = vkb::initializers::render_pass_begin_info();
 	render_pass_begin_info.renderPass = render_pass;
@@ -95,7 +96,7 @@ void TextureLoading::build_command_buffers()
 		// --- 绘制全屏背景 ---
 		if (cam_text.image != VK_NULL_HANDLE && cam_text.view != VK_NULL_HANDLE && cam_text.sampler != VK_NULL_HANDLE) {
 			vkCmdBindPipeline(draw_cmd_buffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelines.background);
-			vkCmdBindDescriptorSets(draw_cmd_buffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipeline_layout_bg, 0, 1, &descriptor_set_bg, 0, NULL);
+			//vkCmdBindDescriptorSets(draw_cmd_buffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipeline_layout_bg, 0, 1, &descriptor_set_bg, 0, NULL);
 			// 绘制一个三角形 strip，覆盖整个屏幕 (NDC -1 to 1)
 			// 顶点顺序: (-1,-1), (1,-1), (-1,1), (1,1)
 			vkCmdDraw(draw_cmd_buffers[i], 4, 1, 0, 0); // 4 个顶点, 1 个实例, 从索引 0 开始
@@ -396,7 +397,8 @@ void TextureLoading::prepare_pipelines()
 		vkb::initializers::pipeline_depth_stencil_state_create_info(
 			VK_TRUE,  // depthTestEnable
 			VK_TRUE,  // depthWriteEnable
-			VK_COMPARE_OP_GREATER); // Reversed depth buffer
+			VK_COMPARE_OP_ALWAYS); // VK_COMPARE_OP_LESS);
+			//VK_COMPARE_OP_GREATER); // Reversed depth buffer
 
 	VkPipelineViewportStateCreateInfo viewport_state =
 		vkb::initializers::pipeline_viewport_state_create_info(1, 1, 0);
@@ -490,7 +492,7 @@ void TextureLoading::prepare_pipeline_bg()
 		vkb::initializers::pipeline_depth_stencil_state_create_info(
 			VK_TRUE,  // depthTestEnable - 启用深度测试
 			VK_FALSE, // depthWriteEnable - 禁用深度写入，让前景物体能正确遮挡背景
-			VK_COMPARE_OP_LESS); // 比较操作：如果片段的深度小于深度缓冲区中的值，则通过。
+			VK_COMPARE_OP_ALWAYS); //VK_COMPARE_OP_LESS); // 比较操作：如果片段的深度小于深度缓冲区中的值，则通过。
 	// 结合清除深度为 1.0 和前景使用 GREATER，这应该可以正确工作。
 	// 或者使用 VK_COMPARE_OP_ALWAYS 来强制绘制背景，忽略深度。
 
@@ -594,6 +596,10 @@ bool TextureLoading::prepare(const vkb::ApplicationOptions& options)
 	std::cout << "Data size: " << dataSize << " bytes" << std::endl;
 	processWithVulkan(testImage.data(), width, height, 1, rowStride, dataSize, texture);
 
+	auto bgImage = generateSimpleTestImage(width, height, &rowStride);
+	dataSize = bgImage.size();
+	processWithVulkan(bgImage.data(), width, height, 1, rowStride, dataSize, cam_text);
+
 	// --- 生成前景几何体 ---
 	generate_quad();