diff --git a/samples/api/texture_loading/texture_loading.cpp b/samples/api/texture_loading/texture_loading.cpp
index 0fc7482..374a01a 100644
--- a/samples/api/texture_loading/texture_loading.cpp
+++ b/samples/api/texture_loading/texture_loading.cpp
@@ -60,6 +60,7 @@ TextureLoading::~TextureLoading()
 	vertex_buffer.reset();
 	index_buffer.reset();
 	uniform_buffer_vs.reset();
+	point_uniform_vs.reset();
 
 	
 	point_vertex_buffer.reset(); // BufferC 会自动清理
@@ -1454,7 +1455,7 @@ void TextureLoading::setup_point_descriptor_set()
 // --- 新增：更新点云描述符集以指向 uniform_buffer_vs 的辅助函数 ---
 void TextureLoading::update_point_descriptor_set()
 {
-	if (!uniform_buffer_vs) { // 检查主 UBO 缓冲区是否存在
+	if (!point_uniform_vs) { // 检查主 UBO 缓冲区是否存在
 		LOGW("Main uniform buffer (uniform_buffer_vs) not created yet, cannot update point descriptor set.");
 		return;
 	}
diff --git a/samples/api/texture_loading/texture_loading.h b/samples/api/texture_loading/texture_loading.h
index 96de18f..4cb08b6 100644
--- a/samples/api/texture_loading/texture_loading.h
+++ b/samples/api/texture_loading/texture_loading.h
@@ -88,6 +88,14 @@ public:
 		float     lod_bias = 0.0f;
 	} ubo_vs;
 
+	std::unique_ptr<vkb::core::BufferC> point_uniform_vs;
+	struct
+	{
+		glm::mat4 projection;
+		glm::mat4 model;
+		glm::mat4 view;
+	} point_ubo;
+
 	struct
 	{
 		VkPipeline solid;