239 lines
7.7 KiB
C
239 lines
7.7 KiB
C
/**
|
|
* Example of applying a fog effect in Evas-3D.
|
|
*
|
|
* @verbatim
|
|
* gcc -o evas-3d-fog evas-3d-fog.c `pkg-config --libs --cflags efl evas ecore ecore-evas eo` -lm
|
|
* @endverbatim
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#else
|
|
#define EFL_BETA_API_SUPPORT
|
|
#endif
|
|
|
|
#include <math.h>
|
|
#include <Eo.h>
|
|
#include <Evas.h>
|
|
#include <Ecore.h>
|
|
#include <Ecore_Evas.h>
|
|
|
|
#define WIDTH 1024
|
|
#define HEIGHT 1024
|
|
#define FOG_COLOR 0.5, 0.5, 0.5
|
|
#define FOG_FACTOR 0.2
|
|
|
|
typedef struct _Scene_Data
|
|
{
|
|
Eo *scene;
|
|
Eo *root_node;
|
|
Eo *camera_node;
|
|
Eo *light_node;
|
|
Eo *mesh_node;
|
|
Eo *mesh_node1;
|
|
Eo *animation_node;
|
|
Eo *sphere;
|
|
|
|
Eo *camera;
|
|
Eo *light;
|
|
Eo *mesh;
|
|
Eo *mesh1;
|
|
Eo *material;
|
|
} Scene_Data;
|
|
|
|
Ecore_Evas *ecore_evas = NULL;
|
|
Evas *evas = NULL;
|
|
Eo *background = NULL;
|
|
Eo *image = NULL;
|
|
|
|
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);
|
|
|
|
evas_object_resize(background, w, h);
|
|
efl_gfx_entity_size_set(background, EINA_SIZE2D(w, h));
|
|
efl_gfx_entity_size_set(image, EINA_SIZE2D(w, h));
|
|
}
|
|
|
|
static Eina_Bool
|
|
_animate_scene(void *data)
|
|
{
|
|
static float angle = 0.0f;
|
|
Scene_Data *scene = (Scene_Data *)data;
|
|
|
|
angle += 0.5;
|
|
|
|
evas_canvas3d_node_orientation_angle_axis_set(scene->animation_node, angle, 0.0, 1.0, 0.0);
|
|
|
|
if (angle > 360.0) angle -= 360.0f;
|
|
|
|
return EINA_TRUE;
|
|
}
|
|
|
|
static void
|
|
_camera_setup(Scene_Data *data)
|
|
{
|
|
data->camera = efl_add(EVAS_CANVAS3D_CAMERA_CLASS, evas);
|
|
|
|
evas_canvas3d_camera_projection_perspective_set(data->camera, 60.0, 1.0, 2.0, 50.0);
|
|
|
|
data->camera_node =
|
|
efl_add(EVAS_CANVAS3D_NODE_CLASS, evas, evas_canvas3d_node_type_set(efl_added, EVAS_CANVAS3D_NODE_TYPE_CAMERA));
|
|
|
|
evas_canvas3d_node_camera_set(data->camera_node, data->camera);
|
|
evas_canvas3d_node_position_set(data->camera_node, 0.0, 0.0, 7.0);
|
|
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);
|
|
|
|
evas_canvas3d_node_member_add(data->root_node, data->camera_node);
|
|
}
|
|
|
|
static void
|
|
_light_setup(Scene_Data *data)
|
|
{
|
|
data->light = efl_add(EVAS_CANVAS3D_LIGHT_CLASS, evas);
|
|
evas_canvas3d_light_ambient_set(data->light, 0.2, 0.2, 0.2, 1.0);
|
|
evas_canvas3d_light_diffuse_set(data->light, 1.0, 1.0, 1.0, 1.0);
|
|
evas_canvas3d_light_specular_set(data->light, 1.0, 1.0, 1.0, 1.0);
|
|
|
|
data->light_node =
|
|
efl_add(EVAS_CANVAS3D_NODE_CLASS, evas, evas_canvas3d_node_type_set(efl_added, EVAS_CANVAS3D_NODE_TYPE_LIGHT));
|
|
evas_canvas3d_node_light_set(data->light_node, data->light);
|
|
evas_canvas3d_node_position_set(data->light_node, 0.0, 0.0, 10.0);
|
|
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);
|
|
evas_canvas3d_node_member_add(data->root_node, data->light_node);
|
|
}
|
|
|
|
static void
|
|
_set_ball(Eo *mesh, Eo *sphere, Evas_Canvas3D_Material *material)
|
|
{
|
|
evas_canvas3d_mesh_from_primitive_set(mesh, 0, sphere);
|
|
evas_canvas3d_mesh_shader_mode_set(mesh, EVAS_CANVAS3D_SHADER_MODE_PHONG);
|
|
evas_canvas3d_mesh_frame_material_set(mesh, 0, material);
|
|
}
|
|
|
|
static void
|
|
_mesh_setup(Scene_Data *data)
|
|
{
|
|
data->material = efl_add(EVAS_CANVAS3D_MATERIAL_CLASS, evas);
|
|
|
|
evas_canvas3d_material_enable_set(data->material, EVAS_CANVAS3D_MATERIAL_ATTRIB_AMBIENT, EINA_TRUE);
|
|
evas_canvas3d_material_enable_set(data->material, EVAS_CANVAS3D_MATERIAL_ATTRIB_DIFFUSE, EINA_TRUE);
|
|
evas_canvas3d_material_enable_set(data->material, EVAS_CANVAS3D_MATERIAL_ATTRIB_SPECULAR, EINA_TRUE);
|
|
evas_canvas3d_material_color_set(data->material, EVAS_CANVAS3D_MATERIAL_ATTRIB_AMBIENT, 0.2, 0.2, 0.2, 1.0);
|
|
evas_canvas3d_material_color_set(data->material, EVAS_CANVAS3D_MATERIAL_ATTRIB_DIFFUSE, 0.8, 0.8, 0.8, 1.0);
|
|
evas_canvas3d_material_color_set(data->material, EVAS_CANVAS3D_MATERIAL_ATTRIB_SPECULAR, 1.0, 1.0, 1.0, 1.0);
|
|
evas_canvas3d_material_shininess_set(data->material, 100.0);
|
|
|
|
data->sphere = efl_add(EVAS_CANVAS3D_PRIMITIVE_CLASS, evas);
|
|
evas_canvas3d_primitive_form_set(data->sphere, EVAS_CANVAS3D_MESH_PRIMITIVE_SPHERE);
|
|
evas_canvas3d_primitive_precision_set(data->sphere, 50);
|
|
|
|
data->mesh = efl_add(EVAS_CANVAS3D_MESH_CLASS, evas);
|
|
data->mesh1 = efl_add(EVAS_CANVAS3D_MESH_CLASS, evas);
|
|
|
|
_set_ball(data->mesh, data->sphere, data->material);
|
|
_set_ball(data->mesh1, data->sphere, data->material);
|
|
|
|
data->animation_node =
|
|
efl_add(EVAS_CANVAS3D_NODE_CLASS, evas, evas_canvas3d_node_type_set(efl_added, EVAS_CANVAS3D_NODE_TYPE_NODE));
|
|
|
|
data->mesh_node =
|
|
efl_add(EVAS_CANVAS3D_NODE_CLASS, evas, evas_canvas3d_node_type_set(efl_added, EVAS_CANVAS3D_NODE_TYPE_MESH));
|
|
|
|
evas_canvas3d_node_member_add(data->animation_node, data->mesh_node);
|
|
evas_canvas3d_node_member_add(data->root_node, data->animation_node);
|
|
evas_canvas3d_node_mesh_add(data->mesh_node, data->mesh);
|
|
evas_canvas3d_node_position_set(data->mesh_node, 0.0, 0.0, 3.0);
|
|
|
|
data->mesh_node1 =
|
|
efl_add(EVAS_CANVAS3D_NODE_CLASS, evas, evas_canvas3d_node_type_set(efl_added, EVAS_CANVAS3D_NODE_TYPE_MESH));
|
|
|
|
evas_canvas3d_node_member_add(data->root_node, data->mesh_node1);
|
|
evas_canvas3d_node_mesh_add(data->mesh_node1, data->mesh1);
|
|
evas_canvas3d_node_scale_set(data->mesh_node1, 3, 3, 3);
|
|
|
|
evas_canvas3d_mesh_fog_enable_set(data->mesh, EINA_TRUE);
|
|
evas_canvas3d_mesh_fog_color_set(data->mesh, FOG_COLOR, FOG_FACTOR);
|
|
evas_canvas3d_mesh_fog_enable_set(data->mesh1, EINA_TRUE);
|
|
evas_canvas3d_mesh_fog_color_set(data->mesh1, FOG_COLOR, FOG_FACTOR);
|
|
}
|
|
|
|
static void
|
|
_scene_setup(Scene_Data *data)
|
|
{
|
|
data->scene = efl_add(EVAS_CANVAS3D_SCENE_CLASS, evas);
|
|
|
|
evas_canvas3d_scene_size_set(data->scene, WIDTH, HEIGHT);
|
|
evas_canvas3d_scene_background_color_set(data->scene, FOG_COLOR, 1);
|
|
|
|
data->root_node =
|
|
efl_add(EVAS_CANVAS3D_NODE_CLASS, evas, evas_canvas3d_node_type_set(efl_added, EVAS_CANVAS3D_NODE_TYPE_NODE));
|
|
|
|
_camera_setup(data);
|
|
_light_setup(data);
|
|
_mesh_setup(data);
|
|
|
|
evas_canvas3d_scene_root_node_set(data->scene, data->root_node);
|
|
evas_canvas3d_scene_camera_node_set(data->scene, data->camera_node);
|
|
}
|
|
|
|
int
|
|
main(void)
|
|
{
|
|
// Unless Evas 3D supports Software renderer, we force use of the gl backend.
|
|
setenv("ECORE_EVAS_ENGINE", "opengl_x11", 1);
|
|
Scene_Data data;
|
|
Ecore_Animator *anim;
|
|
|
|
if (!ecore_evas_init()) return 0;
|
|
|
|
ecore_evas = ecore_evas_new("opengl_x11", 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 object. */
|
|
background = efl_add(EFL_CANVAS_RECTANGLE_CLASS, evas);
|
|
efl_gfx_color_set(background, 0, 0, 0, 255);
|
|
efl_gfx_entity_size_set(background, EINA_SIZE2D(WIDTH, HEIGHT));
|
|
efl_gfx_entity_visible_set(background, EINA_TRUE);
|
|
|
|
/* Add an image object for 3D scene rendering. */
|
|
image = efl_add(EFL_CANVAS_SCENE3D_CLASS, evas);
|
|
|
|
efl_gfx_entity_size_set(image, EINA_SIZE2D(WIDTH, HEIGHT));
|
|
efl_gfx_entity_visible_set(image, EINA_TRUE);
|
|
|
|
/* Set the image object as render target for 3D scene. */
|
|
efl_canvas_scene3d_set(image, data.scene);
|
|
|
|
/* Add animation timer callback. */
|
|
ecore_animator_frametime_set(0.008);
|
|
anim = ecore_animator_add(_animate_scene, &data);
|
|
|
|
/* Enter main loop. */
|
|
ecore_main_loop_begin();
|
|
|
|
ecore_evas_free(ecore_evas);
|
|
ecore_evas_shutdown();
|
|
ecore_animator_del(anim);
|
|
|
|
return 0;
|
|
}
|