private GLTFCamera ExportCamera(BabylonCamera babylonCamera, GLTF gltf, GLTFNode gltfParentNode)
{
RaiseMessage("GLTFExporter.Camera | Export camera named: " + babylonCamera.name, 1);
// --------------------------
// ---------- Node ----------
// --------------------------
RaiseMessage("GLTFExporter.Camera | Node", 2);
// Node
var gltfNode = new GLTFNode();
gltfNode.name = GetUniqueNodeName(babylonCamera.name);
gltfNode.index = gltf.NodesList.Count;
gltf.NodesList.Add(gltfNode);
// Hierarchy
if (gltfParentNode != null)
{
RaiseMessage("GLTFExporter.Camera | Add " + babylonCamera.name + " as child to " + gltfParentNode.name, 3);
gltfParentNode.ChildrenList.Add(gltfNode.index);
gltfNode.parent = gltfParentNode;
}
else
{
// It's a root node
// Only root nodes are listed in a gltf scene
RaiseMessage("GLTFExporter.Camera | Add " + babylonCamera.name + " as root node to scene", 3);
gltf.scenes[0].NodesList.Add(gltfNode.index);
}
// Transform
gltfNode.translation = babylonCamera.position;
if (babylonCamera.rotationQuaternion != null)
{
gltfNode.rotation = babylonCamera.rotationQuaternion;
}
else
{
// Convert rotation vector to quaternion
BabylonVector3 rotationVector3 = new BabylonVector3
{
X = babylonCamera.rotation[0],
Y = babylonCamera.rotation[1],
Z = babylonCamera.rotation[2]
};
gltfNode.rotation = rotationVector3.toQuaternion().ToArray();
}
// No scaling defined for babylon camera. Use identity instead.
gltfNode.scale = new float[3] {
1, 1, 1
};
// Switch coordinate system at object level
gltfNode.translation[2] *= -1;
gltfNode.rotation[0] *= -1;
gltfNode.rotation[1] *= -1;
// Animations
ExportNodeAnimation(babylonCamera, gltf, gltfNode);
// --- prints ---
#region prints
RaiseVerbose("GLTFExporter.Camera | babylonCamera data", 2);
RaiseVerbose("GLTFExporter.Camera | babylonCamera.type=" + babylonCamera.type, 3);
RaiseVerbose("GLTFExporter.Camera | babylonCamera.fov=" + babylonCamera.fov, 3);
RaiseVerbose("GLTFExporter.Camera | babylonCamera.maxZ=" + babylonCamera.maxZ, 3);
RaiseVerbose("GLTFExporter.Camera | babylonCamera.minZ=" + babylonCamera.minZ, 3);
#endregion
// --------------------------
// ------- gltfCamera -------
// --------------------------
RaiseMessage("GLTFExporter.Camera | create gltfCamera", 2);
// Camera
var gltfCamera = new GLTFCamera {
name = babylonCamera.name
};
gltfCamera.index = gltf.CamerasList.Count;
gltf.CamerasList.Add(gltfCamera);
gltfNode.camera = gltfCamera.index;
gltfCamera.gltfNode = gltfNode;
// Camera type
switch (babylonCamera.mode)
{
case (BabylonCamera.CameraMode.ORTHOGRAPHIC_CAMERA):
var gltfCameraOrthographic = new GLTFCameraOrthographic();
gltfCameraOrthographic.xmag = 1; // Do not bother about it - still mandatory
gltfCameraOrthographic.ymag = 1; // Do not bother about it - still mandatory
gltfCameraOrthographic.zfar = babylonCamera.maxZ;
gltfCameraOrthographic.znear = babylonCamera.minZ;
gltfCamera.type = GLTFCamera.CameraType.orthographic.ToString();
gltfCamera.orthographic = gltfCameraOrthographic;
break;
case (BabylonCamera.CameraMode.PERSPECTIVE_CAMERA):
var gltfCameraPerspective = new GLTFCameraPerspective();
gltfCameraPerspective.aspectRatio = null; // Do not bother about it - use default glTF value
gltfCameraPerspective.yfov = babylonCamera.fov; // Babylon camera fov mode is assumed to be vertical (FOVMODE_VERTICAL_FIXED)
gltfCameraPerspective.zfar = babylonCamera.maxZ;
gltfCameraPerspective.znear = babylonCamera.minZ;
gltfCamera.type = GLTFCamera.CameraType.perspective.ToString();
gltfCamera.perspective = gltfCameraPerspective;
break;
default:
RaiseError("GLTFExporter.Camera | camera mode not found");
break;
}
return(gltfCamera);
}
private GLTFCamera ExportCamera(ref GLTFNode gltfNode, BabylonCamera babylonCamera, GLTF gltf, GLTFNode gltfParentNode)
{
logger.RaiseMessage("GLTFExporter.Camera | Export camera named: " + babylonCamera.name, 2);
// --- prints ---
#region prints
logger.RaiseVerbose("GLTFExporter.Camera | babylonCamera data", 3);
logger.RaiseVerbose("GLTFExporter.Camera | babylonCamera.type=" + babylonCamera.type, 4);
logger.RaiseVerbose("GLTFExporter.Camera | babylonCamera.fov=" + babylonCamera.fov, 4);
logger.RaiseVerbose("GLTFExporter.Camera | babylonCamera.maxZ=" + babylonCamera.maxZ, 4);
logger.RaiseVerbose("GLTFExporter.Camera | babylonCamera.minZ=" + babylonCamera.minZ, 4);
#endregion
// --------------------------
// ------- gltfCamera -------
// --------------------------
logger.RaiseMessage("GLTFExporter.Camera | create gltfCamera", 3);
// Camera
var gltfCamera = new GLTFCamera {
name = babylonCamera.name
};
gltfCamera.index = gltf.CamerasList.Count;
gltf.CamerasList.Add(gltfCamera);
gltfNode.camera = gltfCamera.index;
gltfCamera.gltfNode = gltfNode;
// Camera type
switch (babylonCamera.mode)
{
case (BabylonCamera.CameraMode.ORTHOGRAPHIC_CAMERA):
var gltfCameraOrthographic = new GLTFCameraOrthographic();
gltfCameraOrthographic.xmag = 1; // Do not bother about it - still mandatory
gltfCameraOrthographic.ymag = 1; // Do not bother about it - still mandatory
gltfCameraOrthographic.zfar = babylonCamera.maxZ;
gltfCameraOrthographic.znear = babylonCamera.minZ;
gltfCamera.type = GLTFCamera.CameraType.orthographic.ToString();
gltfCamera.orthographic = gltfCameraOrthographic;
break;
case (BabylonCamera.CameraMode.PERSPECTIVE_CAMERA):
var gltfCameraPerspective = new GLTFCameraPerspective();
gltfCameraPerspective.aspectRatio = null; // Do not bother about it - use default glTF value
gltfCameraPerspective.yfov = babylonCamera.fov; // Babylon camera fov mode is assumed to be vertical (FOVMODE_VERTICAL_FIXED)
gltfCameraPerspective.zfar = babylonCamera.maxZ;
gltfCameraPerspective.znear = babylonCamera.minZ;
gltfCamera.type = GLTFCamera.CameraType.perspective.ToString();
gltfCamera.perspective = gltfCameraPerspective;
break;
default:
logger.RaiseError("GLTFExporter.Camera | camera mode not found");
break;
}
ExportGLTFExtension(babylonCamera, ref gltfCamera, gltf);
return(gltfCamera);
}
// TODO - Test if ok with a gltf viewer working with custom camera (babylon loader/sandbox doesn't load them)
private GLTFCamera ExportCamera(BabylonCamera babylonCamera, GLTF gltf, GLTFNode gltfParentNode)
{
RaiseMessage("GLTFExporter.Camera | Export camera named: " + babylonCamera.name, 1);
// --------------------------
// ---------- Node ----------
// --------------------------
RaiseMessage("GLTFExporter.Camera | Node", 2);
// Node
var gltfNode = new GLTFNode();
gltfNode.name = babylonCamera.name;
gltfNode.index = gltf.NodesList.Count;
gltf.NodesList.Add(gltfNode);
// Hierarchy
if (gltfParentNode != null)
{
RaiseMessage("GLTFExporter.Camera | Add " + babylonCamera.name + " as child to " + gltfParentNode.name, 3);
gltfParentNode.ChildrenList.Add(gltfNode.index);
}
else
{
// It's a root node
// Only root nodes are listed in a gltf scene
RaiseMessage("GLTFExporter.Camera | Add " + babylonCamera.name + " as root node to scene", 3);
gltf.scenes[0].NodesList.Add(gltfNode.index);
}
// Transform
gltfNode.translation = babylonCamera.position;
// Switch from left to right handed coordinate system
//gltfNode.translation[0] *= -1;
if (babylonCamera.rotationQuaternion != null)
{
gltfNode.rotation = babylonCamera.rotationQuaternion;
}
else
{
// Convert rotation vector to quaternion
BabylonVector3 rotationVector3 = new BabylonVector3
{
X = babylonCamera.rotation[0],
Y = babylonCamera.rotation[1],
Z = babylonCamera.rotation[2]
};
gltfNode.rotation = rotationVector3.toQuaternionGltf().ToArray();
}
// No scaling defined for babylon camera. Use identity instead.
gltfNode.scale = new float[3] {
1, 1, 1
};
// --- prints ---
RaiseMessage("GLTFExporter.Camera | babylonCamera data", 2);
RaiseMessage("GLTFExporter.Camera | babylonCamera.type=" + babylonCamera.type, 3);
RaiseMessage("GLTFExporter.Camera | babylonCamera.fov=" + babylonCamera.fov, 3);
RaiseMessage("GLTFExporter.Camera | babylonCamera.maxZ=" + babylonCamera.maxZ, 3);
RaiseMessage("GLTFExporter.Camera | babylonCamera.minZ=" + babylonCamera.minZ, 3);
// --------------------------
// ------- gltfCamera -------
// --------------------------
RaiseMessage("GLTFExporter.Camera | create gltfCamera", 2);
// Camera
var gltfCamera = new GLTFCamera {
name = babylonCamera.name
};
gltfCamera.index = gltf.CamerasList.Count;
gltf.CamerasList.Add(gltfCamera);
gltfNode.camera = gltfCamera.index;
gltfCamera.gltfNode = gltfNode;
// Camera type
switch (babylonCamera.mode)
{
case (BabylonCamera.CameraMode.ORTHOGRAPHIC_CAMERA):
var gltfCameraOrthographic = new GLTFCameraOrthographic();
gltfCameraOrthographic.xmag = 1; // TODO - How to retreive value from babylon? xmag:The floating-point horizontal magnification of the view
gltfCameraOrthographic.ymag = 1; // TODO - How to retreive value from babylon? ymag:The floating-point vertical magnification of the view
gltfCameraOrthographic.zfar = babylonCamera.maxZ;
gltfCameraOrthographic.znear = babylonCamera.minZ;
gltfCamera.type = GLTFCamera.CameraType.orthographic.ToString();
gltfCamera.orthographic = gltfCameraOrthographic;
break;
case (BabylonCamera.CameraMode.PERSPECTIVE_CAMERA):
var gltfCameraPerspective = new GLTFCameraPerspective();
gltfCameraPerspective.aspectRatio = null; // 0.8f; // TODO - How to retreive value from babylon? The aspect ratio in babylon is computed based on the engine rather than set on a camera (aspectRatio = _gl.drawingBufferWidth / _gl.drawingBufferHeight)
gltfCameraPerspective.yfov = babylonCamera.fov; // WARNING - Babylon camera fov mode is assumed to be vertical (FOVMODE_VERTICAL_FIXED)
gltfCameraPerspective.zfar = babylonCamera.maxZ;
gltfCameraPerspective.znear = babylonCamera.minZ;
gltfCamera.type = GLTFCamera.CameraType.perspective.ToString();
gltfCamera.perspective = gltfCameraPerspective;
break;
default:
RaiseError("GLTFExporter.Camera | camera mode not found");
break;
}
return(gltfCamera);
}
