void
rut_graphable_fully_transform_point (RutObject *graphable,
RutCamera *camera,
float *x,
float *y,
float *z)
{
CoglMatrix modelview;
const CoglMatrix *projection;
const float *viewport;
float point[3] = { *x, *y, *z };
rut_graphable_get_modelview (graphable, camera, &modelview);
projection = rut_camera_get_projection (camera);
viewport = rut_camera_get_viewport (camera);
rut_util_fully_transform_vertices (&modelview,
projection,
viewport,
point,
point,
1);
*x = point[0];
*y = point[1];
*z = point[2];
}
bool
map_window_coords_to_overlay_coord (RutCamera *camera, /* 2d ui camera */
RutObject *overlay, /* camera-view overlay */
float *x,
float *y)
{
CoglMatrix transform;
CoglMatrix inverse_transform;
rut_graphable_get_modelview (overlay, camera, &transform);
if (!cogl_matrix_get_inverse (&transform, &inverse_transform))
return FALSE;
rut_camera_unproject_coord (camera,
&transform,
&inverse_transform,
0, /* object_coord_z */
x,
y);
return TRUE;
}
bool
map_window_coords_to_overlay_coord(rut_object_t *camera, /* 2d ui camera */
rut_object_t *overlay, /* camera-view
overlay */
float *x,
float *y)
{
c_matrix_t transform;
c_matrix_t inverse_transform;
rut_graphable_get_modelview(overlay, camera, &transform);
if (!c_matrix_get_inverse(&transform, &inverse_transform))
return false;
rut_camera_unproject_coord(camera,
&transform,
&inverse_transform,
0, /* object_coord_z */
x,
y);
return true;
}
