259 lines
9.1 KiB
C
259 lines
9.1 KiB
C
/**
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* Example of frame interpolation animation with normal mapping in Evas 3D.
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*
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* @verbatim
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* gcc -o evas-3d-cube2 evas-3d-cube2.c `pkg-config --libs --cflags efl evas ecore ecore-evas eo` -lm
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* @endverbatim
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#else
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#define PACKAGE_EXAMPLES_DIR "."
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#define EFL_BETA_API_SUPPORT
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#endif
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#include <Eo.h>
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#include <Evas.h>
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#include <Ecore.h>
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#include <Ecore_Evas.h>
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#include "evas-common.h"
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#define WIDTH 400
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#define HEIGHT 400
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static const char *normal_map_path = PACKAGE_EXAMPLES_DIR EVAS_IMAGE_FOLDER "/normal_lego.png";
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typedef struct _Scene_Data
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{
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Eo *scene;
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Eo *root_node;
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Eo *camera_node;
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Eo *light_node;
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Eo *mesh_node;
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Eo *camera;
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Eo *light;
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Eo *cube;
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Eo *mesh;
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Eo *material0;
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Eo *material1;
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Eo *texture0;
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Eo *texture1;
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Eo *texture_normal;
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} Scene_Data;
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static Ecore_Evas *ecore_evas = NULL;
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static Evas *evas = NULL;
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static Eo *background = NULL;
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static Eo *image = NULL;
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static const unsigned int pixels0[] =
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{
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0xff0000ff, 0xff0000ff, 0xffff0000, 0xffff0000,
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0xff0000ff, 0xff0000ff, 0xffff0000, 0xffff0000,
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0xff00ff00, 0xff00ff00, 0xff000000, 0xff000000,
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0xff00ff00, 0xff00ff00, 0xff000000, 0xff000000,
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};
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static const unsigned int pixels1[] =
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{
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0xffff0000, 0xffff0000, 0xff00ff00, 0xff00ff00,
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0xffff0000, 0xffff0000, 0xff00ff00, 0xff00ff00,
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0xff0000ff, 0xff0000ff, 0xffffffff, 0xffffffff,
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0xff0000ff, 0xff0000ff, 0xffffffff, 0xffffffff,
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};
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static void
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_on_delete(Ecore_Evas *ee EINA_UNUSED)
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{
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ecore_main_loop_quit();
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}
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static void
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_on_canvas_resize(Ecore_Evas *ee)
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{
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int w, h;
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ecore_evas_geometry_get(ee, NULL, NULL, &w, &h);
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efl_gfx_entity_size_set(background, EINA_SIZE2D(w, h));
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efl_gfx_entity_size_set(image, EINA_SIZE2D(w, h));
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}
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static Eina_Bool
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_animate_scene(void *data)
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{
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static float angle = 0.0f;
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static int frame = 0;
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static int inc = 1;
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Scene_Data *scene = (Scene_Data *)data;
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angle += 0.2;
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evas_canvas3d_node_orientation_angle_axis_set(scene->mesh_node, angle, 1.0, 1.0, 1.0);
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/* Rotate */
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if (angle > 360.0) angle -= 360.0f;
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frame += inc;
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if (frame >= 20) inc = -1;
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else if (frame <= 0) inc = 1;
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evas_canvas3d_node_mesh_frame_set(scene->mesh_node, scene->mesh, frame);
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return EINA_TRUE;
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}
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static void
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_camera_setup(Scene_Data *data)
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{
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data->camera = efl_add(EVAS_CANVAS3D_CAMERA_CLASS, evas);
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evas_canvas3d_camera_projection_perspective_set(data->camera, 60.0, 1.0, 2.0, 50.0);
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data->camera_node =
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efl_add(EVAS_CANVAS3D_NODE_CLASS, evas, evas_canvas3d_node_type_set(efl_added, EVAS_CANVAS3D_NODE_TYPE_CAMERA));
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evas_canvas3d_node_camera_set(data->camera_node, data->camera);
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evas_canvas3d_node_position_set(data->camera_node, 0.0, 0.0, 3.0);
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evas_canvas3d_node_look_at_set(data->camera_node, EVAS_CANVAS3D_SPACE_PARENT, 0.0, 0.0, 0.0, EVAS_CANVAS3D_SPACE_PARENT, 0.0, 1.0, 0.0);
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evas_canvas3d_node_member_add(data->root_node, data->camera_node);
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}
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static void
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_light_setup(Scene_Data *data)
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{
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data->light = efl_add(EVAS_CANVAS3D_LIGHT_CLASS, evas);
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evas_canvas3d_light_ambient_set(data->light, 0.2, 0.2, 0.2, 1.0);
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evas_canvas3d_light_diffuse_set(data->light, 1.0, 1.0, 1.0, 1.0);
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evas_canvas3d_light_specular_set(data->light, 1.0, 1.0, 1.0, 1.0);
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data->light_node =
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efl_add(EVAS_CANVAS3D_NODE_CLASS, evas, evas_canvas3d_node_type_set(efl_added, EVAS_CANVAS3D_NODE_TYPE_LIGHT));
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evas_canvas3d_node_light_set(data->light_node, data->light);
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evas_canvas3d_node_position_set(data->light_node, 0.0, 0.0, 10.0);
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evas_canvas3d_node_look_at_set(data->light_node, EVAS_CANVAS3D_SPACE_PARENT, 0.0, 0.0, 0.0, EVAS_CANVAS3D_SPACE_PARENT, 0.0, 1.0, 0.0);
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evas_canvas3d_node_member_add(data->root_node, data->light_node);
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}
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static void
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_mesh_setup(Scene_Data *data)
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{
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/* Setup material. */
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data->material0 = efl_add(EVAS_CANVAS3D_MATERIAL_CLASS, evas);
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data->material1 = efl_add(EVAS_CANVAS3D_MATERIAL_CLASS, evas);
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evas_canvas3d_material_enable_set(data->material0, EVAS_CANVAS3D_MATERIAL_ATTRIB_AMBIENT, EINA_TRUE);
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evas_canvas3d_material_enable_set(data->material0, EVAS_CANVAS3D_MATERIAL_ATTRIB_DIFFUSE, EINA_TRUE);
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evas_canvas3d_material_enable_set(data->material0, EVAS_CANVAS3D_MATERIAL_ATTRIB_SPECULAR, EINA_TRUE);
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evas_canvas3d_material_enable_set(data->material0, EVAS_CANVAS3D_MATERIAL_ATTRIB_NORMAL, EINA_TRUE);
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evas_canvas3d_material_color_set(data->material0, EVAS_CANVAS3D_MATERIAL_ATTRIB_AMBIENT, 0.2, 0.2, 0.2, 1.0);
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evas_canvas3d_material_color_set(data->material0, EVAS_CANVAS3D_MATERIAL_ATTRIB_DIFFUSE, 0.8, 0.8, 0.8, 1.0);
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evas_canvas3d_material_color_set(data->material0, EVAS_CANVAS3D_MATERIAL_ATTRIB_SPECULAR, 1.0, 1.0, 1.0, 1.0);
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evas_canvas3d_material_shininess_set(data->material0, 100.0);
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evas_canvas3d_material_enable_set(data->material1, EVAS_CANVAS3D_MATERIAL_ATTRIB_AMBIENT, EINA_TRUE);
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evas_canvas3d_material_enable_set(data->material1, EVAS_CANVAS3D_MATERIAL_ATTRIB_DIFFUSE, EINA_TRUE);
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evas_canvas3d_material_enable_set(data->material1, EVAS_CANVAS3D_MATERIAL_ATTRIB_SPECULAR, EINA_TRUE);
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evas_canvas3d_material_enable_set(data->material1, EVAS_CANVAS3D_MATERIAL_ATTRIB_NORMAL, EINA_TRUE);
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evas_canvas3d_material_color_set(data->material1, EVAS_CANVAS3D_MATERIAL_ATTRIB_AMBIENT, 0.2, 0.2, 0.2, 1.0);
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evas_canvas3d_material_color_set(data->material1, EVAS_CANVAS3D_MATERIAL_ATTRIB_DIFFUSE, 0.8, 0.8, 0.8, 1.0);
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evas_canvas3d_material_color_set(data->material1, EVAS_CANVAS3D_MATERIAL_ATTRIB_SPECULAR, 1.0, 1.0, 1.0, 1.0);
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evas_canvas3d_material_shininess_set(data->material1, 100.0);
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data->texture0 = efl_add(EVAS_CANVAS3D_TEXTURE_CLASS, evas);
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data->texture1 = efl_add(EVAS_CANVAS3D_TEXTURE_CLASS, evas);
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data->texture_normal = efl_add(EVAS_CANVAS3D_TEXTURE_CLASS, evas);
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evas_canvas3d_texture_data_set(data->texture0, EVAS_COLORSPACE_ARGB8888, 4, 4, &pixels0[0]);
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evas_canvas3d_texture_data_set(data->texture1, EVAS_COLORSPACE_ARGB8888, 4, 4, &pixels1[0]);
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efl_file_simple_load(data->texture_normal, normal_map_path, NULL);
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evas_canvas3d_material_texture_set(data->material0, EVAS_CANVAS3D_MATERIAL_ATTRIB_DIFFUSE, data->texture0);
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evas_canvas3d_material_texture_set(data->material1, EVAS_CANVAS3D_MATERIAL_ATTRIB_DIFFUSE, data->texture1);
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evas_canvas3d_material_texture_set(data->material1, EVAS_CANVAS3D_MATERIAL_ATTRIB_NORMAL, data->texture_normal);
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/* Set data of primitive */
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data->cube = efl_add(EVAS_CANVAS3D_PRIMITIVE_CLASS, evas);
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evas_canvas3d_primitive_form_set(data->cube, EVAS_CANVAS3D_MESH_PRIMITIVE_CUBE);
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/* Setup mesh. */
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data->mesh = efl_add(EVAS_CANVAS3D_MESH_CLASS, evas);
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evas_canvas3d_mesh_from_primitive_set(data->mesh, 0, data->cube);
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evas_canvas3d_mesh_frame_material_set(data->mesh, 0, data->material0);
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evas_canvas3d_mesh_frame_add(data->mesh, 20);
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evas_canvas3d_mesh_frame_material_set(data->mesh, 20, data->material1);
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evas_canvas3d_mesh_shader_mode_set(data->mesh, EVAS_CANVAS3D_SHADER_MODE_NORMAL_MAP);
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data->mesh_node =
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efl_add(EVAS_CANVAS3D_NODE_CLASS, evas, evas_canvas3d_node_type_set(efl_added, EVAS_CANVAS3D_NODE_TYPE_MESH));
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evas_canvas3d_node_member_add(data->root_node, data->mesh_node);
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evas_canvas3d_node_mesh_add(data->mesh_node, data->mesh);
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}
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static void
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_scene_setup(Scene_Data *data)
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{
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data->scene = efl_add(EVAS_CANVAS3D_SCENE_CLASS, evas);
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evas_canvas3d_scene_size_set(data->scene, WIDTH, HEIGHT);
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evas_canvas3d_scene_background_color_set(data->scene, 0.0, 0.0, 0.0, 0.0);
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data->root_node =
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efl_add(EVAS_CANVAS3D_NODE_CLASS, evas, evas_canvas3d_node_type_set(efl_added, EVAS_CANVAS3D_NODE_TYPE_NODE));
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_camera_setup(data);
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_light_setup(data);
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_mesh_setup(data);
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evas_canvas3d_scene_root_node_set(data->scene, data->root_node);
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evas_canvas3d_scene_camera_node_set(data->scene, data->camera_node);
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}
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int
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main(void)
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{
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// Unless Evas 3D supports Software renderer, we force use of the gl backend.
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putenv("ECORE_EVAS_ENGINE=opengl_x11");
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Scene_Data data;
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if (!ecore_evas_init()) return 0;
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ecore_evas = ecore_evas_new(NULL, 10, 10, WIDTH, HEIGHT, NULL);
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if (!ecore_evas) return 0;
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ecore_evas_callback_delete_request_set(ecore_evas, _on_delete);
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ecore_evas_callback_resize_set(ecore_evas, _on_canvas_resize);
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ecore_evas_show(ecore_evas);
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evas = ecore_evas_get(ecore_evas);
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_scene_setup(&data);
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/* Add a background rectangle object. */
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background = efl_add(EFL_CANVAS_RECTANGLE_CLASS, evas);
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efl_gfx_color_set(background, 0, 0, 0, 255);
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efl_gfx_entity_size_set(background, EINA_SIZE2D(WIDTH, HEIGHT));
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efl_gfx_entity_visible_set(background, EINA_TRUE);
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/* Add an image object for 3D scene rendering. */
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image = efl_add(EFL_CANVAS_SCENE3D_CLASS, evas);
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efl_gfx_entity_size_set(image, EINA_SIZE2D(WIDTH, HEIGHT));
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efl_gfx_entity_visible_set(image, EINA_TRUE);
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/* Set the image object as render target for 3D scene. */
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efl_canvas_scene3d_set(image, data.scene);
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/* Add animation timer callback. */
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ecore_timer_add(0.01, _animate_scene, &data);
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/* Enter main loop. */
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ecore_main_loop_begin();
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ecore_evas_free(ecore_evas);
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ecore_evas_shutdown();
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return 0;
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}
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