Evas 3d: Add example for convex hull

Summary: This example is a testing example for comparison convex hulls built by our algorithm and in Blender. Reviewers: raster, Hermet, cedric, jpeg, perepelits.m Subscribers: jpeg, artem.popov Differential Revision: https://phab.enlightenment.org/D3336
2015-12-18 13:50:17 +09:00 · 2015-12-18 13:50:17 +09:00 · efde72de1e
parent a3dcf7a0ba
commit efde72de1e
13 changed files with 3940 additions and 0 deletions
--- a/src/examples/evas/Makefile.am
+++ b/src/examples/evas/Makefile.am
@ -239,6 +239,11 @@ evas_canvas3d_ply_SOURCES = evas-3d-ply.c
 evas_canvas3d_ply_LDADD = $(ECORE_EVAS_COMMON_LDADD) @EFL_PTHREAD_LIBS@
 evas_canvas3d_ply_CPPFLAGS = $(ECORE_EVAS_COMMON_CPPFLAGS)

+EXTRA_PROGRAMS += evas_canvas3d_hull
+evas_canvas3d_hull_SOURCES = evas-3d-hull.c
+evas_canvas3d_hull_LDADD = $(ECORE_EVAS_COMMON_LDADD) @EFL_PTHREAD_LIBS@
+evas_canvas3d_hull_CPPFLAGS = $(ECORE_EVAS_COMMON_CPPFLAGS)
+
 EXTRA_PROGRAMS += evas_canvas3d_frustum
 evas_canvas3d_frustum_SOURCES = evas-3d-frustum.c
 evas_canvas3d_frustum_LDADD = $(ECORE_EVAS_COMMON_LDADD) @EFL_PTHREAD_LIBS@
@ -383,6 +388,15 @@ resources/models/sweet_home.obj \
 resources/models/sweet_home_only_vertex_coords.obj \
 resources/models/sweet_home_without_normals.obj \
 resources/models/sweet_home_without_tex_coords.obj \
+resources/models/convex_hull/column_blender_ch.ply \
+resources/models/convex_hull/column_test.ply \
+resources/models/convex_hull/cube_blender_ch.ply \
+resources/models/convex_hull/eagle_blender_ch.ply \
+resources/models/convex_hull/home_blender_ch.obj \
+resources/models/convex_hull/plain.ply \
+resources/models/convex_hull/plain_blender_ch.ply \
+resources/models/convex_hull/sphere_blender_ch.ply \
+resources/models/convex_hull/torus_blender_ch.ply \
 shooter/assets/images/brick-stone_n.jpg \
 shooter/assets/images/brick-stone.jpg \
 shooter/assets/images/bricks_n.jpg \
--- a/src/examples/evas/evas-3d-hull.c
+++ b/src/examples/evas/evas-3d-hull.c
@ -0,0 +1,483 @@
+/**
+ * This example is a testing example, first model (from the right side) is
+ * original model, the second one is convex hull maden in evas-3d,
+ * the third one is convex hull maden in blender.
+ *
+ * Press "Right" or "Left" to switch models, the result of test (vertex count)
+ * will be printed in console window.
+ *
+ * @verbatim
+ * gcc -o evas-3d-hull evas-3d-hull.c -g `pkg-config --libs --cflags efl evas ecore ecore-evas eo eina` -lm
+ * @endverbatim
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#else
+#define PACKAGE_EXAMPLES_DIR "."
+#define EFL_EO_API_SUPPORT
+#define EFL_BETA_API_SUPPORT
+#endif
+
+#include <Eo.h>
+#include <Evas.h>
+#include <Ecore.h>
+#include <Ecore_Evas.h>
+#include "evas-common.h"
+
+#define  WIDTH          1024
+#define  HEIGHT         1024
+#define  TESTS_COUNT    8
+#define  SCALE_SPHERE   2.0
+#define  SCALE_TORUS    2.7
+#define  SCALE_HOME     0.7
+#define  SCALE_SONIC    0.08
+#define  SCALE_EAGLE    0.06
+
+typedef struct _Scene_Data
+{
+   Eo *scene;
+   Eo *root_node;
+   Eo *camera_node;
+   Eo *light_node;
+   Eo *mesh_node;
+   Eo *mesh_node_convex_hull;
+   Eo *mesh_node_blender;
+
+   Eo *camera;
+   Eo *light;
+   Eo *mesh_sphere;
+   Eo *mesh_torus;
+   Eo *mesh_cube;
+   Eo *mesh_plain;
+   Eo *mesh_column;
+   Eo *mesh_home;
+   Eo *mesh_sonic;
+   Eo *mesh_eagle;
+   Eo *mesh_sphere_ch;
+   Eo *mesh_torus_ch;
+   Eo *mesh_cube_ch;
+   Eo *mesh_plain_ch;
+   Eo *mesh_column_ch;
+   Eo *mesh_home_ch;
+   Eo *mesh_sonic_ch;
+   Eo *mesh_eagle_ch;
+   Eo *mesh_blender_sphere;
+   Eo *mesh_blender_torus;
+   Eo *mesh_blender_cube;
+   Eo *mesh_blender_plain;
+   Eo *mesh_blender_column;
+   Eo *mesh_blender_home;
+   Eo *mesh_blender_sonic;
+   Eo *mesh_blender_eagle;
+   Eo *material;
+} Scene_Data;
+
+int rr;
+
+#define MODEL_MESH_INIT(name, model)                                              \
+   data->mesh_##name = eo_add(EVAS_CANVAS3D_MESH_CLASS, evas);                          \
+   eo_do(data->mesh_##name,                                                       \
+         efl_file_set(model, NULL),                                               \
+         evas_canvas3d_mesh_vertex_assembly_set(EVAS_CANVAS3D_VERTEX_ASSEMBLY_TRIANGLES),     \
+         evas_canvas3d_mesh_shade_mode_set(EVAS_CANVAS3D_SHADE_MODE_DIFFUSE),                   \
+         evas_canvas3d_mesh_frame_material_set(0, data->material));
+
+#define CONVEX_HULL_MESH_INIT(name)                                                              \
+   vert = eina_inarray_new(sizeof(float), 1); \
+   ind = eina_inarray_new(sizeof(unsigned short int), 1);\
+   eo_do(data->mesh_##name,                                                                      \
+         evas_canvas3d_mesh_convex_hull_data_get(0, vert, ind));  \
+   vertex = (float*) vert->members;\
+   index = ind->members;\
+   data->mesh_##name##_ch = eo_add(EVAS_CANVAS3D_MESH_CLASS, evas);                                    \
+   eo_do(data->mesh_##name##_ch,                                                                 \
+         evas_canvas3d_mesh_vertex_count_set((vert->len / 10)),                                         \
+         evas_canvas3d_mesh_frame_add(0),                                                              \
+         evas_canvas3d_mesh_frame_vertex_data_copy_set(0, EVAS_CANVAS3D_VERTEX_ATTRIB_POSITION,                     \
+                                            10 * sizeof(float), &vertex[ 0]),                      \
+         evas_canvas3d_mesh_frame_vertex_data_copy_set(0, EVAS_CANVAS3D_VERTEX_ATTRIB_NORMAL,                       \
+                                            10 * sizeof(float), &vertex[ 3]),                      \
+         evas_canvas3d_mesh_frame_vertex_data_copy_set(0, EVAS_CANVAS3D_VERTEX_ATTRIB_COLOR,                        \
+                                            10 * sizeof(float), &vertex[ 6]),                      \
+         evas_canvas3d_mesh_index_data_copy_set(EVAS_CANVAS3D_INDEX_FORMAT_UNSIGNED_SHORT,                   \
+                                     ind->len, &index[0]),                                   \
+         evas_canvas3d_mesh_vertex_assembly_set(EVAS_CANVAS3D_VERTEX_ASSEMBLY_TRIANGLES),                    \
+         evas_canvas3d_mesh_shade_mode_set(EVAS_CANVAS3D_SHADE_MODE_VERTEX_COLOR),                           \
+         evas_canvas3d_mesh_frame_material_set(0, data->material));                                    \
+         free(vert);                                                                             \
+         free(ind);
+
+#define SWITCH_MESH(index, name, scale)                                           \
+   case index:                                                                    \
+     {                                                                            \
+        eo_do(scene->mesh_node, list = evas_canvas3d_node_mesh_list_get());             \
+        mesh = eina_list_nth(list, 0);                                            \
+        eo_do(scene->mesh_node,                                                   \
+              evas_canvas3d_node_mesh_del(mesh),                                        \
+              evas_canvas3d_node_mesh_add(scene->mesh_##name),                          \
+              evas_canvas3d_node_scale_set(scale, scale, scale));                       \
+        eo_do(scene->mesh_node_convex_hull, list = evas_canvas3d_node_mesh_list_get()); \
+        mesh = eina_list_nth(list, 0);                                            \
+        eo_do(scene->mesh_node_convex_hull,                                       \
+              evas_canvas3d_node_mesh_del(mesh),                                        \
+              evas_canvas3d_node_mesh_add(scene->mesh_##name##_ch),                     \
+              evas_canvas3d_node_scale_set(scale, scale, scale));                       \
+        eo_do(scene->mesh_node_blender, list = evas_canvas3d_node_mesh_list_get());     \
+        mesh = eina_list_nth(list, 0);                                            \
+        eo_do(scene->mesh_node_blender,                                           \
+              evas_canvas3d_node_mesh_del(mesh),                                        \
+              evas_canvas3d_node_mesh_add(scene->mesh_blender_##name),                  \
+              evas_canvas3d_node_scale_set(scale, scale, scale));                       \
+        _print_result(scene->mesh_##name##_ch, scene->mesh_blender_##name);       \
+        break;                                                                    \
+     }
+
+static const char *home_ch = PACKAGE_EXAMPLES_DIR EVAS_MODEL_FOLDER "/sweet_home_without_tex_coords.obj";
+static const char *sonic_ch = PACKAGE_EXAMPLES_DIR EVAS_MODEL_FOLDER "/sonic.md2";
+
+static const char *column_ch = PACKAGE_EXAMPLES_DIR EVAS_CONVEX_HULL_FOLDER "/column_test.ply";
+static const char *plain_ch = PACKAGE_EXAMPLES_DIR EVAS_CONVEX_HULL_FOLDER "/plain.ply";
+static const char *plain = PACKAGE_EXAMPLES_DIR EVAS_CONVEX_HULL_FOLDER "/plain_blender_ch.ply";
+static const char *sphere = PACKAGE_EXAMPLES_DIR EVAS_CONVEX_HULL_FOLDER "/sphere_blender_ch.ply";
+static const char *torus = PACKAGE_EXAMPLES_DIR EVAS_CONVEX_HULL_FOLDER "/torus_blender_ch.ply";
+static const char *cube = PACKAGE_EXAMPLES_DIR EVAS_CONVEX_HULL_FOLDER "/cube_blender_ch.ply";
+static const char *column = PACKAGE_EXAMPLES_DIR EVAS_CONVEX_HULL_FOLDER "/column_blender_ch.ply";
+static const char *home = PACKAGE_EXAMPLES_DIR EVAS_CONVEX_HULL_FOLDER "/home_blender_ch.obj";
+static const char *sonic = PACKAGE_EXAMPLES_DIR EVAS_CONVEX_HULL_FOLDER "/sonic_blender_ch.ply";
+static const char *eagle = PACKAGE_EXAMPLES_DIR EVAS_CONVEX_HULL_FOLDER "/eagle_blender_ch.ply";
+
+static Ecore_Evas *ecore_evas = NULL;
+static Evas *evas = NULL;
+static Eo *background = NULL;
+static Eo *image = NULL;
+static int next_model = 0;
+
+static void
+_print_result(Evas_Canvas3D_Mesh *mesh, Evas_Canvas3D_Mesh *convex_mesh)
+{
+   int v_count = 0;
+   eo_do(mesh, v_count = evas_canvas3d_mesh_vertex_count_get());
+
+   printf("Vertex count is %d for convex hull\n",
+           v_count);
+
+   eo_do(convex_mesh, v_count = evas_canvas3d_mesh_vertex_count_get());
+
+   printf("Vertex count is %d for blender convex hull\n\n",
+           v_count);
+
+   return;
+}
+
+static void
+_on_delete(Ecore_Evas *ee EINA_UNUSED)
+{
+   ecore_main_loop_quit();
+}
+
+static void
+_on_canvas_resize(Ecore_Evas *ee)
+{
+   int w, h;
+
+   ecore_evas_geometry_get(ee, NULL, NULL, &w, &h);
+   eo_do(background, efl_gfx_size_set(w, h));
+   eo_do(image, efl_gfx_size_set(w, h));
+}
+
+static Eina_Bool
+_animate_scene(void *data)
+{
+   static float angle = 0.0f;
+   Scene_Data *scene = (Scene_Data *)data;
+
+   angle += 0.5;
+   if (angle >= 360.0)
+     angle = 0.0;
+
+   eo_do(scene->mesh_node,
+         evas_canvas3d_node_orientation_angle_axis_set(angle, 1.0, 1.0, 1.0));
+
+   eo_do(scene->mesh_node_convex_hull,
+         evas_canvas3d_node_orientation_angle_axis_set(angle, 1.0, 1.0, 1.0));
+
+   eo_do(scene->mesh_node_blender,
+         evas_canvas3d_node_orientation_angle_axis_set(angle, 1.0, 1.0, 1.0));
+
+   return EINA_TRUE;
+}
+
+static void
+_key_down(void *data,
+         Evas *e EINA_UNUSED,
+         Evas_Object *eo EINA_UNUSED,
+         void *event_info)
+{
+   const Eina_List *list = NULL;
+   Eo *mesh = NULL;
+   Evas_Event_Key_Down *ev = event_info;
+   Scene_Data *scene = (Scene_Data *)data;
+
+   if (!strcmp(ev->key, "Right"))
+     next_model++;
+   else if (!strcmp(ev->key, "Left"))
+     next_model--;
+
+   if (next_model == -1)
+     next_model = TESTS_COUNT - 1;
+   else if (next_model == TESTS_COUNT)
+     next_model = 0;
+
+   switch (next_model)
+     {
+      SWITCH_MESH(0, sphere, SCALE_SPHERE)
+      SWITCH_MESH(1, torus, SCALE_TORUS)
+      SWITCH_MESH(2, cube, 1.0)
+      SWITCH_MESH(3, plain, 1.0)
+      SWITCH_MESH(4, column, 1.0)
+      SWITCH_MESH(5, home, SCALE_HOME)
+      SWITCH_MESH(6, sonic, SCALE_SONIC)
+      SWITCH_MESH(7, eagle, SCALE_EAGLE)
+      default:
+        break;
+     }
+}
+
+static void
+_camera_setup(Scene_Data *data)
+{
+   data->camera = eo_add(EVAS_CANVAS3D_CAMERA_CLASS, evas);
+
+   eo_do(data->camera,
+         evas_canvas3d_camera_projection_perspective_set(60.0, 1.0, 2.0, 50.0));
+
+   data->camera_node =
+      eo_add(EVAS_CANVAS3D_NODE_CLASS, evas,
+                    evas_canvas3d_node_constructor(EVAS_CANVAS3D_NODE_TYPE_CAMERA));
+   eo_do(data->camera_node,
+         evas_canvas3d_node_camera_set(data->camera),
+         evas_canvas3d_node_position_set(0.0, 0.0, 10.0),
+         evas_canvas3d_node_look_at_set(EVAS_CANVAS3D_SPACE_PARENT, 0.0, 0.0, 0.0,
+                                  EVAS_CANVAS3D_SPACE_PARENT, 0.0, 1.0, 0.0));
+   eo_do(data->root_node, evas_canvas3d_node_member_add(data->camera_node));
+}
+
+static void
+_light_setup(Scene_Data *data)
+{
+   data->light = eo_add(EVAS_CANVAS3D_LIGHT_CLASS, evas);
+   eo_do(data->light,
+         evas_canvas3d_light_ambient_set(0.2, 0.2, 0.2, 1.0),
+         evas_canvas3d_light_diffuse_set(1.0, 1.0, 1.0, 1.0),
+         evas_canvas3d_light_specular_set(1.0, 1.0, 1.0, 1.0));
+
+   data->light_node =
+      eo_add(EVAS_CANVAS3D_NODE_CLASS, evas,
+                    evas_canvas3d_node_constructor(EVAS_CANVAS3D_NODE_TYPE_LIGHT));
+   eo_do(data->light_node,
+         evas_canvas3d_node_light_set(data->light),
+         evas_canvas3d_node_position_set(0.0, 0.0, 10.0),
+         evas_canvas3d_node_look_at_set(EVAS_CANVAS3D_SPACE_PARENT, 0.0, 0.0, 0.0,
+                                  EVAS_CANVAS3D_SPACE_PARENT, 0.0, 1.0, 0.0));
+   eo_do(data->root_node, evas_canvas3d_node_member_add(data->light_node));
+}
+
+static void
+_mesh_setup(Scene_Data *data)
+{
+   /*int vertex_ch_count = 0, index_ch_count = 0;
+   float *vert = NULL;
+   unsigned short int *ind = NULL;
+   int count = 0;
+   float *v = NULL;
+   unsigned short int *indx = NULL;*/
+
+   Eina_Inarray *vert, *ind;
+   float *vertex;
+   unsigned short int *index;
+   int i = 0;
+   Eo *primitive = NULL;
+   /* Setup material. */
+
+   data->material = eo_add(EVAS_CANVAS3D_MATERIAL_CLASS, evas);
+   eo_do(data->material,
+         evas_canvas3d_material_enable_set(EVAS_CANVAS3D_MATERIAL_ATTRIB_AMBIENT, EINA_TRUE),
+         evas_canvas3d_material_enable_set(EVAS_CANVAS3D_MATERIAL_ATTRIB_DIFFUSE, EINA_TRUE),
+         evas_canvas3d_material_enable_set(EVAS_CANVAS3D_MATERIAL_ATTRIB_SPECULAR, EINA_TRUE),
+
+         evas_canvas3d_material_color_set(EVAS_CANVAS3D_MATERIAL_ATTRIB_AMBIENT, 0.2, 0.2, 0.2, 1.0),
+         evas_canvas3d_material_color_set(EVAS_CANVAS3D_MATERIAL_ATTRIB_DIFFUSE, 0.8, 0.8, 0.8, 1.0),
+         evas_canvas3d_material_color_set(EVAS_CANVAS3D_MATERIAL_ATTRIB_SPECULAR, 1.0, 1.0, 1.0, 1.0),
+         evas_canvas3d_material_shininess_set(100.0));
+
+   /* Setup mesh sphere */
+   primitive = eo_add(EVAS_CANVAS3D_PRIMITIVE_CLASS, evas);
+   eo_do(primitive,
+         evas_canvas3d_primitive_form_set(EVAS_CANVAS3D_MESH_PRIMITIVE_SPHERE),
+         evas_canvas3d_primitive_precision_set(10));
+   data->mesh_sphere = eo_add(EVAS_CANVAS3D_MESH_CLASS, evas);
+   eo_do(data->mesh_sphere, evas_canvas3d_mesh_from_primitive_set(0, primitive));
+   eo_do(data->mesh_sphere,
+         evas_canvas3d_mesh_vertex_assembly_set(EVAS_CANVAS3D_VERTEX_ASSEMBLY_TRIANGLES),
+
+         evas_canvas3d_mesh_shade_mode_set(EVAS_CANVAS3D_SHADE_MODE_PHONG),
+
+         evas_canvas3d_mesh_frame_material_set(0, data->material));
+
+   /* Setup mesh torus */
+   data->mesh_torus = eo_add(EVAS_CANVAS3D_MESH_CLASS, evas);
+   eo_do(primitive,
+         evas_canvas3d_primitive_form_set(EVAS_CANVAS3D_MESH_PRIMITIVE_TORUS),
+         evas_canvas3d_primitive_precision_set(50));
+   eo_do(data->mesh_torus, evas_canvas3d_mesh_from_primitive_set(0, primitive));
+   eo_do(data->mesh_torus,
+         evas_canvas3d_mesh_vertex_assembly_set(EVAS_CANVAS3D_VERTEX_ASSEMBLY_TRIANGLES),
+         evas_canvas3d_mesh_shade_mode_set(EVAS_CANVAS3D_SHADE_MODE_PHONG),
+         evas_canvas3d_mesh_frame_material_set(0, data->material));
+
+   /* Setup mesh cube */
+   data->mesh_cube = eo_add(EVAS_CANVAS3D_MESH_CLASS, evas);
+   eo_do(primitive,
+         evas_canvas3d_primitive_form_set(EVAS_CANVAS3D_MESH_PRIMITIVE_CUBE),
+         evas_canvas3d_primitive_precision_set(50));
+   eo_do(data->mesh_cube, evas_canvas3d_mesh_from_primitive_set(0, primitive));
+   eo_do(data->mesh_cube,
+         evas_canvas3d_mesh_vertex_assembly_set(EVAS_CANVAS3D_VERTEX_ASSEMBLY_TRIANGLES),
+         evas_canvas3d_mesh_shade_mode_set(EVAS_CANVAS3D_SHADE_MODE_PHONG),
+         evas_canvas3d_mesh_frame_material_set(0, data->material));
+
+   MODEL_MESH_INIT(plain, plain_ch)
+   MODEL_MESH_INIT(column, column_ch)
+   MODEL_MESH_INIT(home, home_ch)
+   MODEL_MESH_INIT(sonic, sonic_ch)
+   MODEL_MESH_INIT(eagle, "shooter/assets/models/eagle.md2")
+
+   MODEL_MESH_INIT(blender_sphere, sphere)
+   MODEL_MESH_INIT(blender_torus, torus)
+   MODEL_MESH_INIT(blender_cube, cube)
+   MODEL_MESH_INIT(blender_plain, plain)
+   MODEL_MESH_INIT(blender_column, column)
+   MODEL_MESH_INIT(blender_home, home)
+   MODEL_MESH_INIT(blender_eagle, eagle)
+   MODEL_MESH_INIT(blender_sonic, sonic)
+
+   data->mesh_node =
+      eo_add(EVAS_CANVAS3D_NODE_CLASS, evas,
+                    evas_canvas3d_node_constructor(EVAS_CANVAS3D_NODE_TYPE_MESH));
+   eo_do(data->root_node, evas_canvas3d_node_member_add(data->mesh_node));
+   eo_do(data->mesh_node,
+         evas_canvas3d_node_mesh_add(data->mesh_sphere),
+         evas_canvas3d_node_scale_set(SCALE_SPHERE, SCALE_SPHERE, SCALE_SPHERE),
+         evas_canvas3d_node_position_set(3.0, 0.0, 0.0));
+
+   CONVEX_HULL_MESH_INIT(sphere)
+   CONVEX_HULL_MESH_INIT(torus)
+   CONVEX_HULL_MESH_INIT(cube)
+   CONVEX_HULL_MESH_INIT(plain)
+   CONVEX_HULL_MESH_INIT(column)
+   CONVEX_HULL_MESH_INIT(home)
+   CONVEX_HULL_MESH_INIT(sonic)
+   CONVEX_HULL_MESH_INIT(eagle)
+
+   _print_result(data->mesh_sphere_ch, data->mesh_blender_sphere);
+
+   data->mesh_node_convex_hull =
+      eo_add(EVAS_CANVAS3D_NODE_CLASS, evas,
+                    evas_canvas3d_node_constructor(EVAS_CANVAS3D_NODE_TYPE_MESH));
+   eo_do(data->root_node, evas_canvas3d_node_member_add(data->mesh_node_convex_hull));
+   eo_do(data->mesh_node_convex_hull,
+         evas_canvas3d_node_position_set(0.0, 0.0, 0.0),
+         evas_canvas3d_node_scale_set(SCALE_SPHERE, SCALE_SPHERE, SCALE_SPHERE),
+         evas_canvas3d_node_mesh_add(data->mesh_sphere_ch));
+
+   data->mesh_node_blender =
+      eo_add(EVAS_CANVAS3D_NODE_CLASS, evas,
+                    evas_canvas3d_node_constructor(EVAS_CANVAS3D_NODE_TYPE_MESH));
+   eo_do(data->root_node, evas_canvas3d_node_member_add(data->mesh_node_blender));
+   eo_do(data->mesh_node_blender,
+         evas_canvas3d_node_position_set(-3.0, 0.0, 0.0),
+         evas_canvas3d_node_scale_set(SCALE_SPHERE, SCALE_SPHERE, SCALE_SPHERE),
+         evas_canvas3d_node_mesh_add(data->mesh_blender_sphere));
+}
+
+static void
+_scene_setup(Scene_Data *data)
+{
+   data->scene = eo_add(EVAS_CANVAS3D_SCENE_CLASS, evas);
+   eo_do(data->scene,
+         evas_canvas3d_scene_size_set(WIDTH, HEIGHT);
+         evas_canvas3d_scene_background_color_set(0.0, 0.0, 0.0, 0.0));
+
+   data->root_node =
+      eo_add(EVAS_CANVAS3D_NODE_CLASS, evas,
+                    evas_canvas3d_node_constructor(EVAS_CANVAS3D_NODE_TYPE_NODE));
+
+   _camera_setup(data);
+   _light_setup(data);
+   _mesh_setup(data);
+
+   eo_do(data->scene,
+         evas_canvas3d_scene_root_node_set(data->root_node),
+         evas_canvas3d_scene_camera_node_set(data->camera_node));
+}
+
+int
+main(void)
+{
+   Ecore_Animator *anim;
+   Scene_Data data;
+
+   //Unless Evas 3D supports Software renderer, we set gl backened forcely.
+   setenv("ECORE_EVAS_ENGINE", "opengl_x11", 1);
+   int stride_pos;
+
+   if (!ecore_evas_init()) return 0;
+
+   ecore_evas = ecore_evas_new(NULL, 10, 10, WIDTH, HEIGHT, NULL);
+   if (!ecore_evas) return 0;
+
+   ecore_evas_callback_delete_request_set(ecore_evas, _on_delete);
+   ecore_evas_callback_resize_set(ecore_evas, _on_canvas_resize);
+   ecore_evas_show(ecore_evas);
+
+   evas = ecore_evas_get(ecore_evas);
+
+   _scene_setup(&data);
+
+   /* Add a background rectangle objects. */
+   background = eo_add(EVAS_RECTANGLE_CLASS, evas);
+   eo_do(background,
+         efl_gfx_color_set(0, 0, 0, 255),
+         efl_gfx_size_set(WIDTH, HEIGHT),
+         efl_gfx_visible_set(EINA_TRUE));
+
+   /* Add an image object for 3D scene rendering. */
+   image = evas_object_image_filled_add(evas);
+   eo_do(image,
+         efl_gfx_size_set(WIDTH, HEIGHT),
+         efl_gfx_visible_set(EINA_TRUE));
+
+   evas_object_show(image),
+   evas_object_focus_set(image, EINA_TRUE);
+
+   /* Set the image object as render target for 3D scene. */
+   eo_do(image, evas_obj_image_scene_set(data.scene));
+
+   evas_object_event_callback_add(image, EVAS_CALLBACK_KEY_DOWN, _key_down, &data);
+
+   /* Add animator. */
+   ecore_animator_frametime_set(0.008);
+   anim = ecore_animator_add(_animate_scene, &data);
+
+   /* Enter main loop. */
+   ecore_main_loop_begin();
+   ecore_animator_del(anim);
+
+   ecore_evas_free(ecore_evas);
+   ecore_evas_shutdown();
+
+   return 0;
+}
+
+
--- a/src/examples/evas/evas-common.h
+++ b/src/examples/evas/evas-common.h
@ -1,5 +1,6 @@
 #define EVAS_IMAGE_FOLDER "/resources/images"
 #define EVAS_MODEL_FOLDER "/resources/models"
+#define EVAS_CONVEX_HULL_FOLDER "/resources/models/convex_hull"
 #define EVAS_SAVED_FILES "/saved_files"

 #define EVAS_PROJECT_MODEL_FOLDER "/assets/models"
--- a/src/examples/evas/resources/models/convex_hull/column_blender_ch.ply
+++ b/src/examples/evas/resources/models/convex_hull/column_blender_ch.ply
@ -0,0 +1,295 @@
+ply
+format ascii 1.0
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--- a/src/examples/evas/resources/models/convex_hull/column_test.ply
+++ b/src/examples/evas/resources/models/convex_hull/column_test.ply
@ -0,0 +1,521 @@
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