samples: move viz3d sample to samples/ptcloud

samples/CMakeLists.txt

@@ -36,6 +36,7 @@ if(WIN32 AND HAVE_DIRECTX)
 endif()
 if((NOT ANDROID) AND HAVE_OPENGL)
   add_subdirectory(opengl)
+  add_subdirectory(ptcloud)
 endif()
 if(UNIX AND NOT ANDROID AND HAVE_VA)
   add_subdirectory(va_intel)

samples/ptcloud/CMakeLists.txt

@@ -0,0 +1,19 @@
+SET(OPENCV_PTCLOUD_SAMPLES_REQUIRED_DEPS
+  opencv_core
+  opencv_imgproc
+  opencv_imgcodecs
+  opencv_highgui
+  opencv_ptcloud)
+ocv_check_dependencies(${OPENCV_PTCLOUD_SAMPLES_REQUIRED_DEPS})
+
+if(BUILD_EXAMPLES AND OCV_DEPENDENCIES_FOUND)
+  project(ptcloud_samples)
+  ocv_include_modules_recurse(${OPENCV_PTCLOUD_SAMPLES_REQUIRED_DEPS})
+  file(GLOB all_samples RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} *.cpp)
+  foreach(sample_filename ${all_samples})
+    ocv_define_sample(tgt ${sample_filename} ptcloud)
+    ocv_target_link_libraries(${tgt} PRIVATE ${OPENCV_PTCLOUD_SAMPLES_REQUIRED_DEPS})
+  endforeach()
+endif()
+
+ocv_install_example_src(ptcloud *.cpp CMakeLists.txt)