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[evas/evas-3d] Add OBB and AABB. 

Summary: Add axis-aligned bounding box (AABB) to frame. Set and update AABB and oriented bounding box (OBB) in node.

Reviewers: Hermet, cedric, raster

CC: cedric

Differential Revision: https://phab.enlightenment.org/D881
This commit is contained in:
Oleksandr Shcherbina 2014-05-27 22:07:28 +09:00 committed by ChunEon Park
parent b2841c0db6
commit e47373aee1
6 changed files with 600 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

308
src/examples/evas/evas-3d-aabb.c Normal file
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@ -0,0 +1,308 @@
/*
* This example shows how to get and draw axis-aligned bounding box.
* @see _mesh_aabb(Evas_3D_Mesh **mesh_b, const Evas_3D_Node *node);
* Rotate axises (keys 1-4) for model and bounding box view from another angle.
* Compile with "gcc -o evas-3d-aabb evas-3d-aabb.c `pkg-config --libs --cflags evas ecore ecore-evas eo`"
*/
#define EFL_EO_API_SUPPORT
#define EFL_BETA_API_SUPPORT
#include <Eo.h>
#include <Evas.h>
#include <Ecore.h>
#include <Ecore_Evas.h>
#define WIDTH 400
#define HEIGHT 400
Ecore_Evas *ecore_evas = NULL;
Evas *evas = NULL;
Eo *background = NULL;
Eo *image = NULL;
Eo *scene = NULL;
Eo *root_node = NULL;
Eo *camera_node = NULL;
Eo *light_node = NULL;
Eo *camera = NULL;
Eo *mesh_node = NULL;
Eo *mesh_box_node = NULL;
Eo *mesh = NULL;
Eo *mesh_box = NULL;
Eo *material_box = NULL;
Eo *material = NULL;
Eo *texture = NULL;
Eo *light = NULL;
static Eina_Bool
_mesh_aabb(Evas_3D_Mesh **mesh_b, const Evas_3D_Node *node);
static Eina_Bool
_animate_scene(void *data)
{
static int frame = 0;
eo_do((Evas_3D_Node *)data, evas_3d_node_mesh_frame_set(mesh, frame));
_mesh_aabb(&mesh_box, mesh_box_node);
frame += 32;
if (frame > 256 * 50) frame = 0;
return EINA_TRUE;
}
static void
_on_delete(Ecore_Evas *ee EINA_UNUSED)
{
ecore_main_loop_quit();
}
static void
_on_key_down(void *data, Evas *e EINA_UNUSED, Evas_Object *eo EINA_UNUSED, void *event_info)
{
Evas_Event_Key_Down *ev = event_info;
Evas_3D_Node *node = (Evas_3D_Node *)data;
switch(atoi(ev->key))
{
case 1:
{
eo_do(node, evas_3d_node_orientation_angle_axis_set(90, 1.0, 0.0, 0.0));
break;
}
case 2:
{
eo_do(node, evas_3d_node_orientation_angle_axis_set(90, 0.0, 1.0, 0.0));
break;
}
case 3:
{
eo_do(node, evas_3d_node_orientation_angle_axis_set(90, 0.0, 0.0, 1.0));
break;
}
case 4:
{
eo_do(node, evas_3d_node_orientation_angle_axis_set(90, 1.0, 1.0, 0.0));
break;
}
}
}
static void
_on_canvas_resize(Ecore_Evas *ee)
{
int w, h;
ecore_evas_geometry_get(ee, NULL, NULL, &w, &h);
eo_do(background, evas_obj_size_set(w, h));
eo_do(image, evas_obj_size_set(w, h));
}
static Eina_Bool
_mesh_aabb(Evas_3D_Mesh **mesh_b, const Evas_3D_Node *node)
{
Evas_Real x0, y0, z0, x1, y1, z1;
eo_do(mesh_node, evas_3d_node_bounding_box_get(&x0, &y0, &z0, &x1, &y1, &z1));
float vertices[] =
{
x0, y0, z1,
x0, y1, z1,
x1, y1, z1,
x1, y0, z1,
x0, y0, z0,
x1, y0, z0,
x0, y1, z0,
x1, y1, z0,
x0, y0, z0,
x0, y1, z0,
x0, y0, z1,
x0, y1, z1,
x1, y0, z0,
x1, y1, z0,
x1, y1, z1,
x1, y0, z1,
x0, y1, z0,
x1, y1, z0,
x0, y1, z1,
x1, y1, z1,
x0, y0, z0,
x1, y0, z0,
x1, y0, z1,
x0, y0, z1
};
unsigned short indices[] =
{
0, 1, 2, 3, 1, 2, 0, 3,
4, 5, 5, 7, 7, 6, 6, 4,
8, 9, 9, 11, 11, 10, 10, 8,
12, 13, 13, 14, 14, 15, 15, 12,
16, 17, 17, 19, 19, 18, 18, 16,
20, 21, 21, 22, 22, 23, 23, 20
};
float *cube_vertices = (float *) malloc(1 * sizeof(vertices));
unsigned short *cube_indices = (unsigned short *) malloc(1 * sizeof(indices));
memcpy(cube_vertices, vertices, sizeof(vertices));
memcpy(cube_indices, indices, sizeof(indices));
eo_do(*mesh_b,
evas_3d_mesh_vertex_count_set(24),
evas_3d_mesh_frame_add( 0),
evas_3d_mesh_frame_vertex_data_copy_set(0, EVAS_3D_VERTEX_POSITION, 3 * sizeof(float), &cube_vertices[ 0]),
evas_3d_mesh_index_data_copy_set(EVAS_3D_INDEX_FORMAT_UNSIGNED_SHORT, 48, &cube_indices[0]),
evas_3d_mesh_vertex_assembly_set(EVAS_3D_VERTEX_ASSEMBLY_LINES),
evas_3d_mesh_shade_mode_set(EVAS_3D_SHADE_MODE_DIFFUSE),
evas_3d_mesh_frame_material_set(0, material_box));
free(cube_vertices);
free(cube_indices);
return EINA_TRUE;
}
int
main(void)
{
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 = eo_add(EVAS_3D_SCENE_CLASS, evas);
root_node = eo_add_custom(EVAS_3D_NODE_CLASS, evas,
evas_3d_node_constructor(EVAS_3D_NODE_TYPE_NODE));
camera = eo_add(EVAS_3D_CAMERA_CLASS, evas);
eo_do(camera,
evas_3d_camera_projection_perspective_set(60.0, 1.0, 1.0, 500.0));
camera_node =
eo_add_custom(EVAS_3D_NODE_CLASS, evas,
evas_3d_node_constructor(EVAS_3D_NODE_TYPE_CAMERA));
eo_do(camera_node,
evas_3d_node_camera_set(camera));
eo_do(root_node,
evas_3d_node_member_add(camera_node));
eo_do(camera_node,
evas_3d_node_position_set(100.0, 50.0, 20.0),
evas_3d_node_look_at_set(EVAS_3D_SPACE_PARENT, 0.0, 0.0, 20.0,
EVAS_3D_SPACE_PARENT, 0.0, 0.0, 1.0));
light = eo_add(EVAS_3D_LIGHT_CLASS, evas);
eo_do(light,
evas_3d_light_ambient_set(1.0, 1.0, 1.0, 1.0),
evas_3d_light_diffuse_set(1.0, 1.0, 1.0, 1.0),
evas_3d_light_specular_set(1.0, 1.0, 1.0, 1.0),
evas_3d_light_directional_set(EINA_TRUE));
light_node =
eo_add_custom(EVAS_3D_NODE_CLASS, evas,
evas_3d_node_constructor(EVAS_3D_NODE_TYPE_LIGHT));
eo_do(light_node,
evas_3d_node_light_set(light),
evas_3d_node_position_set(1000.0, 0.0, 1000.0),
evas_3d_node_look_at_set(EVAS_3D_SPACE_PARENT, 0.0, 0.0, 0.0,
EVAS_3D_SPACE_PARENT, 0.0, 1.0, 0.0));
eo_do(root_node,
evas_3d_node_member_add(light_node));
mesh = eo_add(EVAS_3D_MESH_CLASS, evas);
material = eo_add(EVAS_3D_MATERIAL_CLASS, evas);
eo_do(mesh,
evas_3d_mesh_file_set(EVAS_3D_MESH_FILE_TYPE_MD2, "sonic.md2", NULL),
evas_3d_mesh_frame_material_set(0, material),
evas_3d_mesh_shade_mode_set(EVAS_3D_SHADE_MODE_PHONG));
texture = eo_add(EVAS_3D_TEXTURE_CLASS, evas);
eo_do(texture,
evas_3d_texture_file_set("sonic.png", NULL),
evas_3d_texture_filter_set(EVAS_3D_TEXTURE_FILTER_NEAREST,
EVAS_3D_TEXTURE_FILTER_NEAREST),
evas_3d_texture_wrap_set(EVAS_3D_WRAP_MODE_REPEAT,
EVAS_3D_WRAP_MODE_REPEAT));
eo_do(material,
evas_3d_material_texture_set(EVAS_3D_MATERIAL_DIFFUSE, texture),
evas_3d_material_enable_set(EVAS_3D_MATERIAL_AMBIENT, EINA_TRUE),
evas_3d_material_enable_set(EVAS_3D_MATERIAL_DIFFUSE, EINA_TRUE),
evas_3d_material_enable_set(EVAS_3D_MATERIAL_SPECULAR, EINA_TRUE),
evas_3d_material_enable_set(EVAS_3D_MATERIAL_NORMAL, EINA_TRUE),
evas_3d_material_color_set(EVAS_3D_MATERIAL_AMBIENT,
0.01, 0.01, 0.01, 1.0),
evas_3d_material_color_set(EVAS_3D_MATERIAL_DIFFUSE,
1.0, 1.0, 1.0, 1.0),
evas_3d_material_color_set(EVAS_3D_MATERIAL_SPECULAR,
1.0, 1.0, 1.0, 1.0),
evas_3d_material_shininess_set(50.0));
mesh_node = eo_add_custom(EVAS_3D_NODE_CLASS, evas,
evas_3d_node_constructor(EVAS_3D_NODE_TYPE_MESH));
mesh_box_node = eo_add_custom(EVAS_3D_NODE_CLASS, evas,
evas_3d_node_constructor(EVAS_3D_NODE_TYPE_MESH));
material_box = eo_add(EVAS_3D_MATERIAL_CLASS, evas);
eo_do(material_box, evas_3d_material_enable_set(EVAS_3D_MATERIAL_DIFFUSE, EINA_TRUE));
mesh_box = eo_add(EVAS_3D_MESH_CLASS, evas);
_mesh_aabb(&mesh_box, mesh_box_node);
eo_do(root_node,
evas_3d_node_member_add(mesh_box_node));
eo_do(mesh_box_node,
evas_3d_node_mesh_add(mesh_box));
eo_do(root_node,
evas_3d_node_member_add(mesh_node));
eo_do(mesh_node,
evas_3d_node_mesh_add(mesh));
eo_do(scene,
evas_3d_scene_root_node_set(root_node),
evas_3d_scene_camera_node_set(camera_node),
evas_3d_scene_size_set(WIDTH, HEIGHT));
background = eo_add(EVAS_OBJ_RECTANGLE_CLASS, evas);
eo_unref(background);
eo_do(background,
evas_obj_color_set(0, 0, 0, 255),
evas_obj_size_set(WIDTH, HEIGHT),
evas_obj_visibility_set(EINA_TRUE));
image = evas_object_image_filled_add(evas);
eo_do(image,
evas_obj_size_set(WIDTH, HEIGHT),
evas_obj_visibility_set(EINA_TRUE));
evas_object_focus_set(image, EINA_TRUE);
eo_do(image, evas_obj_image_scene_set(scene));
evas_object_event_callback_add(image, EVAS_CALLBACK_KEY_DOWN, _on_key_down, root_node);
ecore_timer_add(0.01, _animate_scene, mesh_node);
ecore_main_loop_begin();
ecore_evas_free(ecore_evas);
ecore_evas_shutdown();
return 0;
}

80
src/lib/evas/canvas/evas_3d_mesh.c
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@ -41,7 +41,7 @@ evas_3d_mesh_frame_free(Evas_3D_Mesh_Frame *frame)
free(frame);
}
static Evas_3D_Mesh_Frame *
Evas_3D_Mesh_Frame *
evas_3d_mesh_frame_find(Evas_3D_Mesh_Data *pd, int frame)
{
Eina_List *l;
@ -56,6 +56,47 @@ evas_3d_mesh_frame_find(Evas_3D_Mesh_Data *pd, int frame)
return NULL;
}
Eina_Bool
_aabb_add_to_frame(Evas_3D_Mesh_Data *pd, int frame, int stride)
{
Evas_3D_Mesh_Frame *curframe = evas_3d_mesh_frame_find(pd, frame);
int i = 0, j = 0, step = 0, size = 0;
float vxmin, vymin, vzmin, vxmax, vymax, vzmax;
float *minmaxdata = NULL;
Evas_Box3 box3;
step = curframe->vertices[EVAS_3D_VERTEX_POSITION].element_count;
size = curframe->vertices[EVAS_3D_VERTEX_POSITION].size;
minmaxdata = (float *)curframe->vertices[EVAS_3D_VERTEX_POSITION].data;
if (!minmaxdata)
{
ERR("Invalid vertex data.");
return EINA_FALSE;
}
vxmax = vxmin = minmaxdata[0];
vymax = vymin = minmaxdata[1];
vzmax = vzmin = minmaxdata[2];
j += step;
for (i = 1; i < size/stride; ++i)
{
vxmin > minmaxdata[j] ? vxmin = minmaxdata[j] : 0;
vxmax < minmaxdata[j] ? vxmax = minmaxdata[j] : 0;
vymin > minmaxdata[j + 1] ? vymin = minmaxdata[j + 1] : 0;
vymax < minmaxdata[j + 1] ? vymax = minmaxdata[j + 1] : 0;
vzmin > minmaxdata[j + 2] ? vzmin = minmaxdata[j + 2] : 0;
vzmax < minmaxdata[j + 2] ? vzmax = minmaxdata[j + 2] : 0;
j += step;
}
evas_box3_empty_set(&box3);
evas_box3_set(&box3, vxmin, vymin, vzmin, vxmax, vymax, vzmax);
curframe->aabb = box3;
return EINA_TRUE;
}
static inline void
_mesh_init(Evas_3D_Mesh_Data *pd)
{
@ -331,7 +372,39 @@ _evas_3d_mesh_frame_vertex_data_set(Eo *obj, Evas_3D_Mesh_Data *pd, int frame, E
if (attrib == EVAS_3D_VERTEX_POSITION)
{
int i = 0, j = 0, size = stride/sizeof(float);
float vxmin, vymin, vzmin, vxmax, vymax, vzmax;
float *minmaxdata = (float *)data;
Evas_Box3 box3;
element_count = 3;
if (minmaxdata)
{
vxmax = vxmin = minmaxdata[0];
vymax = vymin = minmaxdata[1];
vzmax = vzmin = minmaxdata[2];
j += size;
for (i = 1; i < size; ++i)
{
vxmin > minmaxdata[j] ? vxmin = minmaxdata[j] : 0;
vxmax < minmaxdata[j] ? vxmax = minmaxdata[j] : 0;
vymin > minmaxdata[j + 1] ? vymin = minmaxdata[j + 1] : 0;
vymax < minmaxdata[j + 1] ? vymax = minmaxdata[j + 1] : 0;
vzmin > minmaxdata[j + 2] ? vzmin = minmaxdata[j + 2] : 0;
vzmax < minmaxdata[j + 2] ? vzmax = minmaxdata[j + 2] : 0;
j += size;
}
evas_box3_empty_set(&box3);
evas_box3_set(&box3, vxmin, vymin, vzmin, vxmax, vymax, vzmax);
f->aabb = box3;
}
else
{
ERR("Axis-Aligned Bounding Box wasn't added in frame %d ", frame);
}
}
else if (attrib == EVAS_3D_VERTEX_NORMAL)
{
@ -491,6 +564,11 @@ _evas_3d_mesh_frame_vertex_data_copy_set(Eo *obj, Evas_3D_Mesh_Data *pd, int fra
}
}
if (attrib == EVAS_3D_VERTEX_POSITION && !_aabb_add_to_frame(pd, frame, stride))
{
ERR("Axis-Aligned Bounding Box wasn't added in frame %d ", frame);
}
eo_do(obj, evas_3d_object_change(EVAS_3D_STATE_MESH_VERTEX_DATA, NULL));
}

8
src/lib/evas/canvas/evas_3d_mesh_loader_md2.c
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@ -350,6 +350,7 @@ evas_3d_mesh_file_md2_set(Evas_3D_Mesh *mesh, const char *file)
float *pos, *nor, *tex;
int stride_pos, stride_nor, stride_tex;
float s_scale, t_scale;
Evas_3D_Mesh_Data *pd;
/* Initialize MD2 loader (Open file and read MD2 head ant etc) */
if (!_md2_loader_init(&loader, file))
@ -432,6 +433,13 @@ evas_3d_mesh_file_md2_set(Evas_3D_Mesh *mesh, const char *file)
evas_3d_mesh_frame_vertex_data_unmap(f, EVAS_3D_VERTEX_POSITION),
evas_3d_mesh_frame_vertex_data_unmap(f, EVAS_3D_VERTEX_NORMAL),
evas_3d_mesh_frame_vertex_data_unmap(f, EVAS_3D_VERTEX_TEXCOORD));
pd = eo_data_scope_get(mesh, EVAS_3D_MESH_CLASS);
if (!_aabb_add_to_frame(pd, f, stride_pos))
{
ERR("Axis-Aligned Bounding Box wasn't added in frame %d ", f);
}
}
_md2_loader_fini(&loader);

195
src/lib/evas/canvas/evas_3d_node.c
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@ -4,6 +4,8 @@
#define MY_CLASS EVAS_3D_NODE_CLASS
#define MY_CLASS_NAME "Evas_3D_Node"
Evas_3D_Mesh_Frame *evas_3d_mesh_frame_find(Evas_3D_Mesh_Data *pd, int frame);
static inline Evas_3D_Node_Mesh *
_node_mesh_new(Evas_3D_Node *node, Evas_3D_Mesh *mesh)
{
@ -199,8 +201,17 @@ static Eina_Bool
_node_aabb_update(Evas_3D_Node *node, void *data EINA_UNUSED)
{
Evas_3D_Node_Data *pd = eo_data_scope_get(node, EVAS_3D_NODE_CLASS);
Eina_Bool transform_dirty = EINA_FALSE, mesh_geom_dirty = EINA_FALSE,
mesh_frame_dirty = EINA_FALSE, member_dirty = EINA_FALSE;
Eina_Bool transform_dirty = EINA_FALSE, mesh_geom_dirty = EINA_FALSE;
Eina_Bool mesh_frame_dirty = EINA_FALSE, member_dirty = EINA_FALSE;
Eina_Bool frame_found = EINA_FALSE, is_change_orientation = EINA_FALSE;
Eina_List *m, *l;
Evas_3D_Mesh *mesh;
int frame, count, size, i, j;
Evas_3D_Mesh_Frame *f;
float minx, miny, minz, maxx, maxy, maxz, vxmin, vymin, vzmin, vxmax, vymax, vzmax;
float *minmaxdata;
Evas_Vec4 orientation;
Evas_Box3 box3;
eo_do(node,
transform_dirty = evas_3d_object_dirty_get(EVAS_3D_STATE_NODE_TRANSFORM),
@ -213,21 +224,164 @@ _node_aabb_update(Evas_3D_Node *node, void *data EINA_UNUSED)
mesh_frame_dirty ||
member_dirty)
{
Eina_List *l;
Evas_3D_Node *n;
/* Update AABB of this node. */
evas_box3_empty_set(&pd->aabb);
EINA_LIST_FOREACH(pd->members, l, n)
{
Evas_3D_Node_Data *pdmember = eo_data_scope_get(n, EVAS_3D_NODE_CLASS);
evas_box3_union(&pd->aabb, &pd->aabb, &pdmember->aabb);
}
if (pd->type == EVAS_3D_NODE_TYPE_MESH)
{
/* TODO: */
if (pd->orientation.x || pd->orientation.y || pd->orientation.z)
{
evas_vec4_set(&orientation, pd->orientation.x, pd->orientation.y, pd->orientation.z, pd->orientation.w);
is_change_orientation = EINA_TRUE;
}
eo_do (node, m = evas_3d_node_mesh_list_get());
EINA_LIST_FOREACH(m, l, mesh)
{
eo_do(node, frame = evas_3d_node_mesh_frame_get(mesh));
Evas_3D_Mesh_Data *mpd = eo_data_scope_get(mesh, EVAS_3D_MESH_CLASS);
f = evas_3d_mesh_frame_find(mpd, frame);
if (f)
{
i = 0, j = 0;
evas_box3_empty_set(&box3);
count = f->vertices[EVAS_3D_VERTEX_POSITION].element_count;
size = f->vertices[EVAS_3D_VERTEX_POSITION].size;
if (!size) size = count * sizeof(float) * mpd->vertex_count;
minmaxdata = (float *)malloc(size);
if (!minmaxdata)
{
ERR("Not enough memory.");
return EINA_FALSE;
}
memcpy(minmaxdata, f->vertices[EVAS_3D_VERTEX_POSITION].data, size);
/*get current coordinates, set orientation and find min/max*/
if (is_change_orientation)
{
Evas_Vec3 rotate;
evas_vec3_set(&rotate, minmaxdata[0], minmaxdata[1], minmaxdata[2]);
evas_vec3_quaternion_rotate(&rotate, &rotate, &orientation);
vxmax = vxmin = minmaxdata[0] = rotate.x;
vymax = vymin = minmaxdata[1] = rotate.y;
vzmax = vzmin = minmaxdata[2] = rotate.z;
}
else
{
vxmax = vxmin = minmaxdata[0];
vymax = vymin = minmaxdata[1];
vzmax = vzmin = minmaxdata[2];
}
j += count;
if (is_change_orientation)
{
for (i = 1; i < mpd->vertex_count; ++i)
{
Evas_Vec3 rotate;
evas_vec3_set(&rotate, minmaxdata[j], minmaxdata[j + 1], minmaxdata[j + 2]);
evas_vec3_quaternion_rotate(&rotate, &rotate, &orientation);
minmaxdata[j] = rotate.x;
minmaxdata[j + 1] = rotate.y;
minmaxdata[j + 2] = rotate.z;
vxmin > minmaxdata[j] ? vxmin = minmaxdata[j] : 0;
vxmax < minmaxdata[j] ? vxmax = minmaxdata[j] : 0;
vymin > minmaxdata[j + 1] ? vymin = minmaxdata[j + 1] : 0;
vymax < minmaxdata[j + 1] ? vymax = minmaxdata[j + 1] : 0;
vzmin > minmaxdata[j + 2] ? vzmin = minmaxdata[j + 2] : 0;
vzmax < minmaxdata[j + 2] ? vzmax = minmaxdata[j + 2] : 0;
j += count;
}
}
else
{
for (i = 1; i < mpd->vertex_count; ++i)
{
vxmin > minmaxdata[j] ? vxmin = minmaxdata[j] : 0;
vxmax < minmaxdata[j] ? vxmax = minmaxdata[j] : 0;
vymin > minmaxdata[j + 1] ? vymin = minmaxdata[j + 1] : 0;
vymax < minmaxdata[j + 1] ? vymax = minmaxdata[j + 1] : 0;
vzmin > minmaxdata[j + 2] ? vzmin = minmaxdata[j + 2] : 0;
vzmax < minmaxdata[j + 2] ? vzmax = minmaxdata[j + 2] : 0;
j += count;
}
}
if (!frame_found)
{
evas_box3_empty_set(&pd->aabb);
evas_box3_empty_set(&pd->obb);
minx = vxmin;
miny = vymin;
minz = vzmin;
maxx = vxmax;
maxy = vymax;
maxz = vzmax;
}
else
{
minx > vxmin ? minx = vxmin : 0;
maxx < vxmax ? maxx = vxmax : 0;
miny > vymin ? miny = vymin : 0;
maxy < vymax ? maxy = vymax : 0;
minz > vzmin ? minz = vzmin : 0;
maxz < vzmax ? maxz = vzmax : 0;
}
frame_found = EINA_TRUE;
free(minmaxdata);
evas_box3_set(&box3, minx, miny, minz, maxx, maxy, maxz);
evas_box3_union(&pd->aabb, &pd->aabb, &box3);
evas_box3_union(&pd->obb, &pd->obb, &f->aabb);
}
}
if (frame_found)
{
if (is_change_orientation)
{
evas_vec3_quaternion_rotate(&pd->obb.p0, &pd->obb.p0, &orientation);
evas_vec3_quaternion_rotate(&pd->obb.p1, &pd->obb.p1, &orientation);
}
if ((pd->scale.x != 1 || pd->scale.y != 1 || pd->scale.z != 1))
{
Evas_Vec3 scale;
evas_vec3_set(&scale, pd->scale.x, pd->scale.y, pd->scale.z);
evas_vec3_multiply(&pd->obb.p0, &scale, &pd->obb.p0);
evas_vec3_multiply(&pd->obb.p1, &scale, &pd->obb.p1);
evas_vec3_multiply(&pd->aabb.p0, &scale, &pd->aabb.p0);
evas_vec3_multiply(&pd->aabb.p1, &scale, &pd->aabb.p1);
}
if ((pd->position.x || pd->position.y || pd->position.z))
{
Evas_Vec3 position;
evas_vec3_set(&position, pd->position.x, pd->position.y, pd->position.z);
evas_vec3_add(&pd->obb.p0, &position, &pd->obb.p0);
evas_vec3_add(&pd->obb.p1, &position, &pd->obb.p1);
evas_vec3_add(&pd->aabb.p0, &position, &pd->aabb.p0);
evas_vec3_add(&pd->aabb.p1, &position, &pd->aabb.p1);
}
}
}
else
{
Eina_List *current;
Evas_3D_Node *data;
/* Update AABB and OBB of this node. */
evas_box3_empty_set(&pd->aabb);
evas_box3_empty_set(&pd->obb);
EINA_LIST_FOREACH(pd->members, current, data)
{
Evas_3D_Node_Data *datapd = eo_data_scope_get(data, EVAS_3D_NODE_CLASS);
evas_box3_union(&pd->obb, &pd->obb, &datapd->obb);
evas_box3_union(&pd->aabb, &pd->aabb, &datapd->aabb);
}
}
}
@ -1213,4 +1367,15 @@ _evas_3d_node_mesh_frame_get(Eo *obj EINA_UNUSED, Evas_3D_Node_Data *pd, Evas_3D
return nm->frame;
}
EOLIAN static void
_evas_3d_node_bounding_box_get(Eo *obj EINA_UNUSED, Evas_3D_Node_Data *pd, Evas_Real *x, Evas_Real *y, Evas_Real *z, Evas_Real *x2, Evas_Real *y2, Evas_Real *z2)
{
if (x) *x = pd->aabb.p0.x;
if (y) *y = pd->aabb.p0.y;
if (z) *z = pd->aabb.p0.z;
if (x2) *x2 = pd->aabb.p1.x;
if (y2) *y2 = pd->aabb.p1.y;
if (z2) *z2 = pd->aabb.p1.z;
}
#include "canvas/evas_3d_node.eo.c"

24
src/lib/evas/canvas/evas_3d_node.eo
View File

@ -330,6 +330,30 @@ class Evas_3D_Node (Evas_3D_Object, Evas_Common_Interface)
return const Eina_List *;
}
bounding_box_get{
/*
* Get axis-aligned bounding box (AABB) of the given node.
*
* @param node The given node.
* @param x Pointer to receive X coordinate of the first point of AABB.
* @param y Pointer to receive Y coordinate of the first point of AABB.
* @param z Pointer to receive Z coordinate of the first point of AABB.
* @param x2 Pointer to receive X coordinate of the second point of AABB.
* @param y2 Pointer to receive Y coordinate of the second point of AABB.
* @param z2 Pointer to receive Z coordinate of the second point of AABB.
@ingroup Evas_3D_Node
*/
params {
@in Evas_Real *x; /*@ Coordinates of vector.*/
@in Evas_Real *y;
@in Evas_Real *z;
@in Evas_Real *x2;
@in Evas_Real *y2;
@in Evas_Real *z2;
}
}
}
properties {

1
src/lib/evas/include/evas_private.h
View File

@ -136,6 +136,7 @@ struct _Evas_3D_Node
Evas_Vec3 scale_world;
Evas_Box3 aabb;
Evas_Box3 obb;
Evas_3D_Node_Type type;