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evas-3d: fog example uses spheres from primitives 

Reviewers: Hermet, raster, cedric

Subscribers: cedric

Differential Revision: https://phab.enlightenment.org/D2166
This commit is contained in:
Bogdan Devichev 2015-04-07 09:14:41 +09:00 committed by ChunEon Park
parent c3dc01ef32
commit 7fc3e1e3c2
1 changed files with 20 additions and 84 deletions
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104
src/examples/evas/evas-3d-fog.c
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@ -2,7 +2,7 @@
* Example illustrating usage of fog effect.
*
* @verbatim
* gcc -o evas-3d-fog evas-3d-fog.c `pkg-config --libs --cflags evas ecore ecore-evas eo`-lm
* gcc -o evas-3d-fog evas-3d-fog.c evas-3d-primitives.c `pkg-config --libs --cflags evas ecore ecore-evas eo`-lm
* @endverbatim
*/
@ -14,6 +14,7 @@
#include <Evas.h>
#include <Ecore.h>
#include <Ecore_Evas.h>
#include "evas-3d-primitives.h"
#define WIDTH 1024
#define HEIGHT 1024
@ -30,6 +31,7 @@ typedef struct _Scene_Data
Eo *light_node;
Eo *mesh_node;
Eo *mesh_node1;
Eo *animation_node;
Eo *camera;
Eo *light;
@ -38,27 +40,13 @@ typedef struct _Scene_Data
Eo *material;
} Scene_Data;
typedef struct _vec3
{
float x;
float y;
float z;
} vec3;
typedef struct _vec4
{
float x;
float y;
float z;
float w;
} vec4;
static const vec2 tex_scale = {1, 1};
Ecore_Evas *ecore_evas = NULL;
Evas *evas = NULL;
Eo *background = NULL;
Eo *image = NULL;
static void
_on_delete(Ecore_Evas *ee EINA_UNUSED)
{
@ -85,7 +73,7 @@ _animate_scene(void *data)
angle += 0.5;
eo_do(scene->mesh_node,
eo_do(scene->animation_node,
evas_3d_node_orientation_angle_axis_set(angle, 0.0, 1.0, 0.0));
if (angle > 360.0) angle -= 360.0f;
@ -135,68 +123,12 @@ _light_setup(Scene_Data *data)
}
static void
_set_ball(Eo *mesh, double r, double x, double y, double z, int p, Evas_3D_Material *material)
_set_ball(Eo *mesh, int p, Evas_3D_Material *material)
{
int vcount, icount, vccount, i, j;
double dtheta, dfi, sinth, costh, fi, theta, sinfi, cosfi;
unsigned short *indices, *index;
evas_3d_add_sphere_frame(mesh, 0, p, tex_scale);
icount = p * p * 6;
vccount = p + 1;
vcount = vccount * vccount;
dtheta = pi / p;
dfi = 2 * pi / p;
vec3 *vertices = malloc(sizeof(vec3) * vcount);
vec3 *normals = malloc(sizeof(vec3) * vcount);
for (j = 0; j < vccount; j++)
{
theta = j * dtheta;
sinth = sin(theta);
costh = cos(theta);
for (i = 0; i < vccount; i++)
{
fi = i * dfi;
sinfi = sin(fi);
cosfi = cos(fi);
vertices[i + j * vccount].x = r * sinth * cosfi + x;
vertices[i + j * vccount].y = r * sinth * sinfi + y;
vertices[i + j * vccount].z = r * costh + z;
normals[i + j * vccount].x = sinth * cosfi;
normals[i + j * vccount].y = sinth * sinfi;
normals[i + j * vccount].z = costh;
}
}
indices = malloc(sizeof(short) * icount);
index = &indices[0];
for(j = 0; j < p; j++)
for(i = 0; i < p; i++)
{
*index++ = (unsigned short)(i + vccount * j);
*index++ = i + vccount * (j + 1);
*index++ = i + 1 + vccount * (j + 1);
*index++ = i + vccount * j;
*index++ = i + 1 + vccount * j;
*index++ = i + vccount * (j + 1) + 1;
}
eo_do(mesh, evas_3d_mesh_vertex_count_set(vcount),
evas_3d_mesh_frame_add(0);
evas_3d_mesh_frame_vertex_data_set(0, EVAS_3D_VERTEX_POSITION,
sizeof(vec3), &vertices[0]);
evas_3d_mesh_frame_vertex_data_set(0, EVAS_3D_VERTEX_NORMAL,
sizeof(vec3), &normals[0]);
evas_3d_mesh_index_data_set(EVAS_3D_INDEX_FORMAT_UNSIGNED_SHORT,
icount , &indices[0]);
evas_3d_mesh_vertex_assembly_set(EVAS_3D_VERTEX_ASSEMBLY_TRIANGLES);
evas_3d_mesh_shade_mode_set(EVAS_3D_SHADE_MODE_PHONG);
evas_3d_mesh_frame_material_set(0, material));
eo_do(mesh, evas_3d_mesh_shade_mode_set(EVAS_3D_SHADE_MODE_PHONG),
evas_3d_mesh_frame_material_set(0, material));
}
@ -218,23 +150,29 @@ _mesh_setup(Scene_Data *data)
data->mesh = eo_add(EVAS_3D_MESH_CLASS, evas);
data->mesh1 = eo_add(EVAS_3D_MESH_CLASS, evas);
_set_ball(data->mesh, 100, data->material);
_set_ball(data->mesh1, 100, data->material);
_set_ball(data->mesh, 1, 4, 0, 0, 100, data->material);
_set_ball(data->mesh1, 2, 0, 0, 0, 100, data->material);
data->animation_node =
eo_add(EVAS_3D_NODE_CLASS, evas,
evas_3d_node_constructor(EVAS_3D_NODE_TYPE_NODE));
data->mesh_node =
eo_add(EVAS_3D_NODE_CLASS, evas,
evas_3d_node_constructor(EVAS_3D_NODE_TYPE_MESH));
eo_do(data->root_node, evas_3d_node_member_add(data->mesh_node));
eo_do(data->mesh_node, evas_3d_node_mesh_add(data->mesh));
eo_do(data->animation_node, evas_3d_node_member_add(data->mesh_node));
eo_do(data->root_node, evas_3d_node_member_add(data->animation_node));
eo_do(data->mesh_node, evas_3d_node_mesh_add(data->mesh),
evas_3d_node_position_set(0.0, 0.0, 3.0));
data->mesh_node1 =
eo_add(EVAS_3D_NODE_CLASS, evas,
evas_3d_node_constructor(EVAS_3D_NODE_TYPE_MESH));
eo_do(data->root_node, evas_3d_node_member_add(data->mesh_node1));
eo_do(data->mesh_node1, evas_3d_node_mesh_add(data->mesh1));
eo_do(data->mesh_node1, evas_3d_node_mesh_add(data->mesh1),
evas_3d_node_scale_set(3, 3, 3));
eo_do(data->mesh, evas_3d_mesh_fog_enable_set(EINA_TRUE), evas_3d_mesh_fog_color_set(FOG_COLOR, FOG_FACTOR));
eo_do(data->mesh1, evas_3d_mesh_fog_enable_set(EINA_TRUE), evas_3d_mesh_fog_color_set(FOG_COLOR, FOG_FACTOR));
@ -265,7 +203,6 @@ _scene_setup(Scene_Data *data)
int
main(void)
{
//Unless Evas 3D supports Software renderer, we set gl backened forcely.
setenv("ECORE_EVAS_ENGINE", "opengl_x11", 1);
Scene_Data data;
@ -302,7 +239,6 @@ main(void)
/* Set the image object as render target for 3D scene. */
eo_do(image, evas_obj_image_scene_set(data.scene));
/* Add animation timer callback. */
ecore_animator_frametime_set(0.008);
anim = ecore_animator_add(_animate_scene, &data);