// Read a camera definition from a file.
//
// This function is called by lib3ds_file_read(), and you probably
// don't want to call it directly.
//
// \param camera A Lib3dsCamera to be filled in.
// \param io A Lib3dsIo object previously set up by the caller.
//
// \see lib3ds_file_read
public static void lib3ds_camera_read(Lib3dsCamera camera, Lib3dsIo io)
{
Lib3dsChunk c=new Lib3dsChunk();
Lib3dsChunks chunk;
lib3ds_chunk_read_start(c, Lib3dsChunks.CHK_N_CAMERA, io);
for(int i=0; i<3; i++) camera.position[i]=lib3ds_io_read_float(io);
for(int i=0; i<3; i++) camera.target[i]=lib3ds_io_read_float(io);
camera.roll=lib3ds_io_read_float(io);
float s=lib3ds_io_read_float(io);
if(Math.Abs(s)<EPSILON) camera.fov=45.0f;
else camera.fov=2400.0f/s;
lib3ds_chunk_read_tell(c, io);
while((chunk=lib3ds_chunk_read_next(c, io))!=0)
{
switch(chunk)
{
case Lib3dsChunks.CHK_CAM_SEE_CONE: camera.see_cone=true; break;
case Lib3dsChunks.CHK_CAM_RANGES:
camera.near_range=lib3ds_io_read_float(io);
camera.far_range=lib3ds_io_read_float(io);
break;
default: lib3ds_chunk_unknown(chunk, io); break;
}
}
lib3ds_chunk_read_end(c, io);
}
public static void lib3ds_file_insert_camera(Lib3dsFile file, Lib3dsCamera camera, int index)
{
Debug.Assert(file != null);
if (index < 0)
{
file.cameras.Add(camera);
}
else
{
file.cameras.Insert(index, camera);
}
}
public static Lib3dsTargetNode lib3ds_node_new_camera_target(Lib3dsCamera camera)
{
Debug.Assert(camera != null);
Lib3dsNode node = lib3ds_node_new(Lib3dsNodeType.LIB3DS_NODE_CAMERA_TARGET);
node.name = camera.name;
Lib3dsTargetNode n = (Lib3dsTargetNode)node;
lib3ds_track_resize(n.pos_track, 1);
lib3ds_vector_copy(n.pos_track.keys[0].value, camera.target);
return(n);
}
// Return a new Lib3dsCamera object.
//
// Object is initialized with the given name and fov=45. All other
// values are 0.
//
// \param name Name of this camera. Must not be NULL. Must be < 64 characters.
//
// \return Lib3dsCamera object or NULL on failure.
public static Lib3dsCamera lib3ds_camera_new(string name)
{
Debug.Assert(name != null);
Debug.Assert(name.Length < 64);
try
{
Lib3dsCamera camera = new Lib3dsCamera();
camera.name = name;
camera.fov = 45.0f;
return(camera);
}
catch
{
return(null);
}
}
// Return a new Lib3dsCamera object.
//
// Object is initialized with the given name and fov=45. All other
// values are 0.
//
// \param name Name of this camera. Must not be NULL. Must be < 64 characters.
//
// \return Lib3dsCamera object or NULL on failure.
public static Lib3dsCamera lib3ds_camera_new(string name)
{
Debug.Assert(name!=null);
Debug.Assert(name.Length<64);
try
{
Lib3dsCamera camera=new Lib3dsCamera();
camera.name=name;
camera.fov=45.0f;
return camera;
}
catch
{
return null;
}
}
// Read a camera definition from a file.
//
// This function is called by lib3ds_file_read(), and you probably
// don't want to call it directly.
//
// \param camera A Lib3dsCamera to be filled in.
// \param io A Lib3dsIo object previously set up by the caller.
//
// \see lib3ds_file_read
public static void lib3ds_camera_read(Lib3dsCamera camera, Lib3dsIo io)
{
Lib3dsChunk c = new Lib3dsChunk();
Lib3dsChunks chunk;
lib3ds_chunk_read_start(c, Lib3dsChunks.CHK_N_CAMERA, io);
for (int i = 0; i < 3; i++)
{
camera.position[i] = lib3ds_io_read_float(io);
}
for (int i = 0; i < 3; i++)
{
camera.target[i] = lib3ds_io_read_float(io);
}
camera.roll = lib3ds_io_read_float(io);
float s = lib3ds_io_read_float(io);
if (Math.Abs(s) < EPSILON)
{
camera.fov = 45.0f;
}
else
{
camera.fov = 2400.0f / s;
}
lib3ds_chunk_read_tell(c, io);
while ((chunk = lib3ds_chunk_read_next(c, io)) != 0)
{
switch (chunk)
{
case Lib3dsChunks.CHK_CAM_SEE_CONE: camera.see_cone = true; break;
case Lib3dsChunks.CHK_CAM_RANGES:
camera.near_range = lib3ds_io_read_float(io);
camera.far_range = lib3ds_io_read_float(io);
break;
default: lib3ds_chunk_unknown(chunk, io); break;
}
}
lib3ds_chunk_read_end(c, io);
}
public static Lib3dsCameraNode lib3ds_node_new_camera(Lib3dsCamera camera)
{
Debug.Assert(camera != null);
Lib3dsNode node = lib3ds_node_new(Lib3dsNodeType.LIB3DS_NODE_CAMERA);
node.name = camera.name;
Lib3dsCameraNode n = (Lib3dsCameraNode)node;
lib3ds_track_resize(n.pos_track, 1);
lib3ds_vector_copy(n.pos_track.keys[0].value, camera.position);
lib3ds_track_resize(n.fov_track, 1);
n.fov_track.keys[0].value[0] = camera.fov;
lib3ds_track_resize(n.roll_track, 1);
n.roll_track.keys[0].value[0] = camera.roll;
return(n);
}
// Write a camera definition to a file.
//
// This function is called by lib3ds_file_write(), and you probably
// don't want to call it directly.
//
// \param camera A Lib3dsCamera to be written.
// \param io A Lib3dsIo object previously set up by the caller.
//
// \see lib3ds_file_write
public static void lib3ds_camera_write(Lib3dsCamera camera, Lib3dsIo io)
{
Lib3dsChunk c_n_camera = new Lib3dsChunk();
c_n_camera.chunk = Lib3dsChunks.CHK_N_CAMERA;
lib3ds_chunk_write_start(c_n_camera, io);
lib3ds_io_write_vector(io, camera.position);
lib3ds_io_write_vector(io, camera.target);
lib3ds_io_write_float(io, camera.roll);
if (Math.Abs(camera.fov) < EPSILON)
{
lib3ds_io_write_float(io, 2400.0f / 45.0f);
}
else
{
lib3ds_io_write_float(io, 2400.0f / camera.fov);
}
if (camera.see_cone)
{
Lib3dsChunk c = new Lib3dsChunk();
c.chunk = Lib3dsChunks.CHK_CAM_SEE_CONE;
c.size = 6;
lib3ds_chunk_write(c, io);
}
Lib3dsChunk c_cam_ranges = new Lib3dsChunk();
c_cam_ranges.chunk = Lib3dsChunks.CHK_CAM_RANGES;
c_cam_ranges.size = 14;
lib3ds_chunk_write(c_cam_ranges, io);
lib3ds_io_write_float(io, camera.near_range);
lib3ds_io_write_float(io, camera.far_range);
lib3ds_chunk_write_end(c_n_camera, io);
}
static void camera_dump(Lib3dsCamera camera)
{
Debug.Assert(camera!=null);
Console.WriteLine(" name: {0}", camera.name);
Console.WriteLine(" position: ({0},{1},{2})", camera.position[0], camera.position[1], camera.position[2]);
Console.WriteLine(" target ({0},{1},{2})", camera.target[0], camera.target[1], camera.target[2]);
Console.WriteLine(" roll: {0}", camera.roll);
Console.WriteLine(" fov: {0}", camera.fov);
Console.WriteLine(" see_cone: {0}", camera.see_cone?"yes":"no");
Console.WriteLine(" near_range: {0}", camera.near_range);
Console.WriteLine(" far_range: {0}", camera.far_range);
Console.WriteLine();
}
public static Lib3dsTargetNode lib3ds_node_new_camera_target(Lib3dsCamera camera)
{
Debug.Assert(camera!=null);
Lib3dsNode node=lib3ds_node_new(Lib3dsNodeType.LIB3DS_NODE_CAMERA_TARGET);
node.name=camera.name;
Lib3dsTargetNode n=(Lib3dsTargetNode)node;
lib3ds_track_resize(n.pos_track, 1);
lib3ds_vector_copy(n.pos_track.keys[0].value, camera.target);
return n;
}
public static Lib3dsCameraNode lib3ds_node_new_camera(Lib3dsCamera camera)
{
Debug.Assert(camera!=null);
Lib3dsNode node=lib3ds_node_new(Lib3dsNodeType.LIB3DS_NODE_CAMERA);
node.name=camera.name;
Lib3dsCameraNode n=(Lib3dsCameraNode)node;
lib3ds_track_resize(n.pos_track, 1);
lib3ds_vector_copy(n.pos_track.keys[0].value, camera.position);
lib3ds_track_resize(n.fov_track, 1);
n.fov_track.keys[0].value[0]=camera.fov;
lib3ds_track_resize(n.roll_track, 1);
n.roll_track.keys[0].value[0]=camera.roll;
return n;
}
public static void lib3ds_file_insert_camera(Lib3dsFile file, Lib3dsCamera camera, int index)
{
Debug.Assert(file!=null);
if(index<0) file.cameras.Add(camera);
else file.cameras.Insert(index, camera);
}
// Free a Lib3dsCamera object and all of its resources.
//
// \param camera Lib3dsCamera object to be freed.
public static void lib3ds_camera_free(Lib3dsCamera camera)
{
}
// Write a camera definition to a file.
//
// This function is called by lib3ds_file_write(), and you probably
// don't want to call it directly.
//
// \param camera A Lib3dsCamera to be written.
// \param io A Lib3dsIo object previously set up by the caller.
//
// \see lib3ds_file_write
public static void lib3ds_camera_write(Lib3dsCamera camera, Lib3dsIo io)
{
Lib3dsChunk c_n_camera=new Lib3dsChunk();
c_n_camera.chunk=Lib3dsChunks.CHK_N_CAMERA;
lib3ds_chunk_write_start(c_n_camera, io);
lib3ds_io_write_vector(io, camera.position);
lib3ds_io_write_vector(io, camera.target);
lib3ds_io_write_float(io, camera.roll);
if(Math.Abs(camera.fov)<EPSILON) lib3ds_io_write_float(io, 2400.0f/45.0f);
else lib3ds_io_write_float(io, 2400.0f/camera.fov);
if(camera.see_cone)
{
Lib3dsChunk c=new Lib3dsChunk();
c.chunk=Lib3dsChunks.CHK_CAM_SEE_CONE;
c.size=6;
lib3ds_chunk_write(c, io);
}
Lib3dsChunk c_cam_ranges=new Lib3dsChunk();
c_cam_ranges.chunk=Lib3dsChunks.CHK_CAM_RANGES;
c_cam_ranges.size=14;
lib3ds_chunk_write(c_cam_ranges, io);
lib3ds_io_write_float(io, camera.near_range);
lib3ds_io_write_float(io, camera.far_range);
lib3ds_chunk_write_end(c_n_camera, io);
}
// Free a Lib3dsCamera object and all of its resources.
//
// \param camera Lib3dsCamera object to be freed.
public static void lib3ds_camera_free(Lib3dsCamera camera)
{
}
static void named_object_read(Lib3dsFile file, Lib3dsIo io)
{
Lib3dsChunk c = new Lib3dsChunk();
string name;
Lib3dsChunks chunk;
Lib3dsMesh mesh = null;
Lib3dsCamera camera = null;
Lib3dsLight light = null;
Lib3dsObjectFlags object_flags = 0;
lib3ds_chunk_read_start(c, Lib3dsChunks.CHK_NAMED_OBJECT, io);
name = lib3ds_io_read_string(io, 64);
lib3ds_io_log(io, Lib3dsLogLevel.LIB3DS_LOG_INFO, "NAME={0}", name);
lib3ds_chunk_read_tell(c, io);
while ((chunk = lib3ds_chunk_read_next(c, io)) != 0)
{
switch (chunk)
{
case Lib3dsChunks.CHK_N_TRI_OBJECT:
mesh = lib3ds_mesh_new(name);
lib3ds_file_insert_mesh(file, mesh, -1);
lib3ds_chunk_read_reset(c, io);
lib3ds_mesh_read(file, mesh, io);
break;
case Lib3dsChunks.CHK_N_CAMERA:
camera = lib3ds_camera_new(name);
lib3ds_file_insert_camera(file, camera, -1);
lib3ds_chunk_read_reset(c, io);
lib3ds_camera_read(camera, io);
break;
case Lib3dsChunks.CHK_N_DIRECT_LIGHT:
light = lib3ds_light_new(name);
lib3ds_file_insert_light(file, light, -1);
lib3ds_chunk_read_reset(c, io);
lib3ds_light_read(light, io);
break;
case Lib3dsChunks.CHK_OBJ_HIDDEN: object_flags |= Lib3dsObjectFlags.LIB3DS_OBJECT_HIDDEN; break;
case Lib3dsChunks.CHK_OBJ_DOESNT_CAST: object_flags |= Lib3dsObjectFlags.LIB3DS_OBJECT_DOESNT_CAST; break;
case Lib3dsChunks.CHK_OBJ_VIS_LOFTER: object_flags |= Lib3dsObjectFlags.LIB3DS_OBJECT_VIS_LOFTER; break;
case Lib3dsChunks.CHK_OBJ_MATTE: object_flags |= Lib3dsObjectFlags.LIB3DS_OBJECT_MATTE; break;
case Lib3dsChunks.CHK_OBJ_DONT_RCVSHADOW: object_flags |= Lib3dsObjectFlags.LIB3DS_OBJECT_DONT_RCVSHADOW; break;
case Lib3dsChunks.CHK_OBJ_FAST: object_flags |= Lib3dsObjectFlags.LIB3DS_OBJECT_FAST; break;
case Lib3dsChunks.CHK_OBJ_FROZEN: object_flags |= Lib3dsObjectFlags.LIB3DS_OBJECT_FROZEN; break;
default: lib3ds_chunk_unknown(chunk, io); break;
}
}
if (mesh != null)
{
mesh.object_flags = object_flags;
}
if (camera != null)
{
camera.object_flags = object_flags;
}
if (light != null)
{
light.object_flags = object_flags;
}
lib3ds_chunk_read_end(c, io);
}
