These files typically have one buffer holding all the binary data for a scene.
new()Buffer$new(json = NULL, binfile = NULL)
jsonlist read from glTF file.
binfileoptional External binary filename, or raw vector
load()Load from file.
Buffer$load(uri, buf = 0)
uriWhich file to load.
bufWhich buffer number to load.
saveOpenBuffer()Write open buffer to connection.
Buffer$saveOpenBuffer(con, buf = 0)
conOutput connection.
bufBuffer number.
getBuffer()Get buffer object.
Buffer$getBuffer(buf, default = list(byteLength = 0))
bufBuffer number.
defaultDefault buffer object if `buf` not found.
A list containing components described here: https://www.khronos.org/registry/glTF/specs/2.0/glTF-2.0.html#reference-buffer.
setBuffer()Set buffer object.
Buffer$setBuffer(buf, buffer)
bufBuffer number.
bufferNew value to insert.
openBuffer()Open a connection for the data in a buffer.
Buffer$openBuffer(buf)
bufBuffer number.
An open binary connection.
writeBuffer()Write data to buffer.
Buffer$writeBuffer(values, type, size, buf = 0)
valuesValues to write.
typeType to write.
sizeByte size of each value.
bufWhich buffer to write to.
Byte offset of start of bytes written.
closeBuffer()Close the connection in a buffer.
If there was a connection open, this will save the contents in the raw vector `bytes` within the buffer object.
Buffer$closeBuffer(buf)
bufThe buffer number.
closeBuffers()Close any open buffers.
Call this after working with a GLTF file to avoid warnings from R about closing unused connections.
Buffer$closeBuffers()
getBufferview()Get bufferView object.
Buffer$getBufferview(bufv)
bufvbufferView number.
A list containing components described here: https://www.khronos.org/registry/glTF/specs/2.0/glTF-2.0.html#reference-bufferview.
addBufferView()Add a new buffer view.
Buffer$addBufferView(values, type, size, target = NULL, buf = 0)
valuesValues to put in the view.
typeType of values.
sizeSize of values in bytes.
targetOptional target use for values.
bufWhich buffer to write to.
New bufferView number.
openBufferview()Open a connecton to a buffer view.
Buffer$openBufferview(bufv)
bufvWhich bufferView.
A connection.
setBufferview()Set bufferView object.
Buffer$setBufferview(bufv, bufferView)
bufvbufferView number.
bufferViewNew value to insert.
getAccessor()Get accessor object
Buffer$getAccessor(acc)
accAccessor number
A list containing components described here: https://www.khronos.org/registry/glTF/specs/2.0/glTF-2.0.html#reference-accessor
setAccessor()Set accessor object.
Buffer$setAccessor(acc, accessor)
accAccessor number.
accessorNew value to insert.
readAccessor()Read data given by accessor object.
Buffer$readAccessor(acc)
accAccessor number.
A vector or array as specified in the accessor.
addAccessor()Write values to accessor, not including `min` and `max`.
Buffer$addAccessor(values, target = NULL, useDouble = FALSE)
valuesValues to write.
targetOptional target use for values.
useDoubleWhether to write doubles or singles.
glTFWhether this is for glTF use.
New accessor number
dataURI()Convert buffer to data URI.
Buffer$dataURI(buf = 0)
bufBuffer to convert.
String containing data URI.
as.list()Convert to list.
Buffer$as.list()
List suitable for writing using JSON.
clone()The objects of this class are cloneable with this method.
Buffer$clone(deep = FALSE)
deepWhether to make a deep clone.