From 2026c41a231ea08812ce55a41314f35dd9090049 Mon Sep 17 00:00:00 2001
From: Xiang Silian <youmiss@163.com>
Date: Thu, 18 Sep 2025 11:39:31 +0800
Subject: [PATCH] =?UTF-8?q?=E6=94=BE=E5=BC=83=E7=94=BB3d?=
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---
 .../api/texture_loading/texture_loading.cpp   | 46 +++++++++++++------
 1 file changed, 32 insertions(+), 14 deletions(-)

diff --git a/samples/api/texture_loading/texture_loading.cpp b/samples/api/texture_loading/texture_loading.cpp
index f28d78a..2ba2f91 100644
--- a/samples/api/texture_loading/texture_loading.cpp
+++ b/samples/api/texture_loading/texture_loading.cpp
@@ -23,7 +23,7 @@
 
 TextureLoading::TextureLoading()
 {
-	zoom = -2.5f;
+	zoom = -1.f;
 	rotation = { 0.0f, 15.0f, 0.0f };
 	title = "Texture loading";
 	this_instance = this;
@@ -99,7 +99,7 @@ std::vector<uint8_t> generateSimpleTestImage(int width, int height, int* outRowS
 			if (x < width / 3)
 			{
 				// 红色区域
-				imageData[pixelOffset] = 255;        // R
+				imageData[pixelOffset] = 2;        // R
 				imageData[pixelOffset + 1] = 0;          // G
 				imageData[pixelOffset + 2] = 0;          // B
 			}
@@ -107,7 +107,7 @@ std::vector<uint8_t> generateSimpleTestImage(int width, int height, int* outRowS
 			{
 				// 绿色区域
 				imageData[pixelOffset] = 0;          // R
-				imageData[pixelOffset + 1] = 255;        // G
+				imageData[pixelOffset + 1] = 2;        // G
 				imageData[pixelOffset + 2] = 0;          // B
 			}
 			else
@@ -115,7 +115,7 @@ std::vector<uint8_t> generateSimpleTestImage(int width, int height, int* outRowS
 				// 蓝色区域
 				imageData[pixelOffset] = 0;          // R
 				imageData[pixelOffset + 1] = 0;          // G
-				imageData[pixelOffset + 2] = 255;        // B
+				imageData[pixelOffset + 2] = 2;        // B
 			}
 
 			imageData[pixelOffset + 3] = 255;        // A (完全不透明)
@@ -511,9 +511,9 @@ void TextureLoading::build_command_buffers()
 
 		vkCmdDrawIndexed(draw_cmd_buffers[i], index_count, 1, 0, 0, 0);
 
-		//draw_point_cloud(draw_cmd_buffers[i]);
+		draw_point_cloud(draw_cmd_buffers[i]);
 
-		draw_ui(draw_cmd_buffers[i]);
+		//draw_ui(draw_cmd_buffers[i]);
 
 		vkCmdEndRenderPass(draw_cmd_buffers[i]);
 
@@ -546,12 +546,18 @@ void TextureLoading::draw()
 void TextureLoading::generate_quad()
 {
 	// Setup vertices for a single uv-mapped quad made from two triangles
+	//std::vector<TextureLoadingVertexStructure> vertices =
+	//{
+	//	{{1.0f, 1.0f, 0.0f}, {1.0f, 1.0f}, {0.0f, 0.0f, 1.0f}},
+	//	{{-1.0f, 1.0f, 0.0f}, {0.0f, 1.0f}, {0.0f, 0.0f, 1.0f}},
+	//	{{-1.0f, -1.0f, 0.0f}, {0.0f, 0.0f}, {0.0f, 0.0f, 1.0f}},
+	//	{{1.0f, -1.0f, 0.0f}, {1.0f, 0.0f}, {0.0f, 0.0f, 1.0f}} };
 	std::vector<TextureLoadingVertexStructure> vertices =
 	{
-		{{1.0f, 1.0f, 0.0f}, {1.0f, 1.0f}, {0.0f, 0.0f, 1.0f}},
-		{{-1.0f, 1.0f, 0.0f}, {0.0f, 1.0f}, {0.0f, 0.0f, 1.0f}},
-		{{-1.0f, -1.0f, 0.0f}, {0.0f, 0.0f}, {0.0f, 0.0f, 1.0f}},
-		{{1.0f, -1.0f, 0.0f}, {1.0f, 0.0f}, {0.0f, 0.0f, 1.0f}} };
+		{{0.3f, 0.3f, 0.0f}, {1.0f, 1.0f}, {0.0f, 0.0f, 1.0f}},
+		{{-0.3f, 0.3f, 0.0f}, {0.0f, 1.0f}, {0.0f, 0.0f, 1.0f}},
+		{{-0.3f, -0.3f, 0.0f}, {0.0f, 0.0f}, {0.0f, 0.0f, 1.0f}},
+		{{0.3f, -0.3f, 0.0f}, {1.0f, 0.0f}, {0.0f, 0.0f, 1.0f}} };
 
 	// Setup indices
 	std::vector<uint32_t> indices = { 0, 1, 2, 2, 3, 0 };
@@ -943,8 +949,20 @@ bool TextureLoading::prepare(const vkb::ApplicationOptions& options)
 	prepare_point_pipeline();
 	setup_point_descriptor_set();
 	
+	float z = 0.1;
+	//build_command_buffers();
+	float simPoint[] = { 
+		1.0, 1.0, z,
+		-1.0, 1.0, z,
+		-1.0, -1.0, z,
+		1.0, -1.0, z,
+		0.8, 0.8, z,
+		-0.8, 0.8, z,
+		-0.8, -0.8, z,
+		0.8, -0.8, z,
+	};
 
-	build_command_buffers();
+	update_point_vertex_buffer(simPoint, 8);
 
 	prepared = true;
 	//start();
@@ -1450,9 +1468,9 @@ void TextureLoading::prepare_point_pipeline()
 
 	// 深度和模板测试 (通常对点云启用深度测试)
 	VkPipelineDepthStencilStateCreateInfo depth_stencil_state{ VK_STRUCTURE_TYPE_PIPELINE_DEPTH_STENCIL_STATE_CREATE_INFO };
-	depth_stencil_state.depthTestEnable = VK_TRUE;
-	depth_stencil_state.depthWriteEnable = VK_TRUE;
-	depth_stencil_state.depthCompareOp = VK_COMPARE_OP_LESS_OR_EQUAL; // 或 VK_COMPARE_OP_LESS
+	depth_stencil_state.depthTestEnable = VK_FALSE;
+	depth_stencil_state.depthWriteEnable = VK_FALSE;
+	depth_stencil_state.depthCompareOp = VK_COMPARE_OP_ALWAYS; // 或 VK_COMPARE_OP_LESS
 	depth_stencil_state.depthBoundsTestEnable = VK_FALSE;
 	depth_stencil_state.stencilTestEnable = VK_FALSE;