Release notes#
Being an experimental research framework, Mitsuba 3 does not strictly follow the Semantic Versioning convention. That said, we will strive to document breaking API changes in the release notes below.
Mitsuba 3.3.0#
Upgrade Dr.Jit to v0.4.2
Emitters’ members are opaque (fixes long JIT compilation times) [df940c1]
Sensors members are opaque (fixes long JIT compilation times) [c864e08]
Fix
cylinder
’s normals [d9ea8e8]Fix next event estimation (NEE) in volume integrators
mi.xml.dict_to_xml
now supports volumes [15d63df]Allow extending
AdjointIntegrator
in Python [15d63df]mi.load_dict()
is parallel (by default) [bb672ed]Upsampling routines now support
box
filters [64e2ab1]The
Mesh.write_ply()
function writess, t
rather thanu, v
fields [fe4e448]All shapes can hold
Texture
attributes which can be evaluated [f6ec944]Radiative backpropagation style integrators use less memory [c1a9b8f]
New
bsplinecurve
andlinearcurve
shapes [e4c847f] .. [79eb026]
Mitsuba 3.2.1#
February 22, 2023
Upgrade Dr.Jit to v0.4.1
Film
plugins can now have error-compensated accumulation in JIT modes [afeefed]Fix and add missing Python bindings for
Endpoint
/Emitter
/Sensor
[8f03c7d]Numerically robust sphere-ray intersections [7d46e10] .. [0b483bf]
Fix parallel scene loading with Python plugins [93bb99b]
Various minor bug fixes
Mitsuba 3.2.0#
January 6, 2023
Upgrade Dr.Jit to v0.4.0
Various bug fixes
Stability improvements (race conditions, invalid code generation)
Removed 4 billion variable limit
Add missing Python bindings for
Shape
andShapePtr
[bdce950]Fix Python bindings for
Scene
[4cd5585]Fix bug which would break the AD graph in
spectral
variants [f3ac81b]Parallel scene loading in JIT variants [48c14a7] .. [187da96]
Fix sampling of
hg
PhaseFunction
[10d3514]Fix
envmap
updating in JIT variants [7bf132f]Expose
PhaseFunction
ofMedium
objects throughmi.traverse()
[cca5791]
Mitsuba 3.1.1#
November 25, 2022
Fixed maximum limits for OptiX kernel launches [a8e6989]
Mitsuba 3.1.0#
New features#
Enable ray tracing against two different scenes in a single kernel [df79cb3]
Make
ShapeGroup
traversable and updatable [e0871aa]Enable differentiation of
to_world
ininstance
[54d2d3a]Enable differentiation of
to_world
insphere
,rectangle
,disk
andcylinder
[b5d8c5d] .. [b5d8c]Enable differentiation of
to_world
inperspective
andthinlens
[ea513f7] .. [ea513f]Add
BSDF::eval_diffuse_reflectance()
to most BSDF plugins [59af884]Add
mi.OptixDenoiser
class for simple denoising in Python [5529318] .. [55293]envmap
plugin can be constructed frommi.Bitmap
object [9389c8d]
Other improvements#
Major performance improvements in
cuda_*
variants with new version of Dr.JitDeprecated
samples_per_pass
parameter [8ba8528]Fix rendering progress bar on Windows [d8db806]
obj
file parsing performance improvements on Windows [28660f3]Fix
mi.luminance()
for monochromatic modes [61b9516]Add bindings for
PluginManager.create_object()
[4ebf700]Fix
SceneParameters.update()
unnecessary hash computation [f57e741]Fix numerical instabilities with
box
filter splatting [2d89762]Improve
math::bisect
algorithm [7ca09a3]Fix syntax highlighting in documentation and tutorials [5aa2716]
Fix
Optimizer.set_learning_rate
forint
values [53143db]Various minor improvements to the Python typing stub generation [b7ef349] .. [ad72a53]
Minor improvements to the documentation
Various other minor fixes
Mitsuba 3.0.2#
September 13, 2022
Change behavior of
<spectrum ..>
and<rgb ..>
tag at scene loading for better consistency between*_rgb
and*_spectral
variants [f883834]Add PyTorch/Mitsuba interoperability tutorial using
dr.wrap_ad()
Fix DLL loading crash when working with Mitsuba and PyTorch in Python [59d7b35]
Fix crash when evaluating Mitsuba ray tracing kernel from another thread in
cuda
mode. [cd0846f]Add stubs for
Float
,ScalarFloat
and other builtin types [8249179]Plugins
regular
andblackbody
have renamed parameters:wavelength_min
,wavelength_max
(previouslylambda_min
,lambda_max
) [9d3487c]Dr.Jit Python stubs are generated during local builds [4302caa8]
Minor improvements to the documentation
Various other minor fixes
Mitsuba 3.0.1#
July 27, 2022
Various minor fixes in documentation
Added experimental
batch
sensor plugin [0986152]Fix LD sampler for JIT modes [98a8ecb]
Prevent rebuilding of kernels for each sensor in an optimization [152352f]
Fix direction convention in
tabphase
plugin [49e40ba]Create TLS module lookup cache for new threads [6f62749]
Mitsuba 3.0.0#
July 20, 2022
Initial release