Release history¶
v0.11.0 - 2020-09-27¶
Added¶
direct access to internal geometry buffers (memory shared with ndarrays on the python side)
graph / mesh wireframe geometry, available also for all surface plots
m_shadow_catcher, material useful for preparation of packshot style images
Fixed¶
clear the shader compilation cache on installing (incompatible code was surviving updates)
several fixes in b-splines geometry
v0.10.1 - 2020-08-30¶
Added¶
enabled orthogonal projection camera
Fixed¶
crash on empty geometries that appeared with the driver 452
v0.10.0 - 2020-08-17¶
Added¶
fisheye camera, custom projection camera
thin lens and fisheye camera variants supporting chromatic aberration (transverse and longitudinal)
zero-copy access to device buffers wrapped in ndarrays: 8/32bps image, hit and object info, albedo, normals
configurable denoiser inputs: rgb-only, rgb+albedo, rgb+albedo+normals
Fixed¶
more accurate light dispersion
v0.9.0 - 2020-07-20¶
NVIDIA driver >= 450 is required to run this release.
Added¶
enabled normal buffer in AI denoiser
new geometries for curves: BSplineQuad and BSplineCubic approximating data points, SegmentChain for a piecewise-linear plot
Changes¶
update to OptiX 7.1 SDK and CUDA 11 (note: CUDA toolkit is not required in your system to run PlotOptiX)
v0.8.2 - 2020-07-12¶
Added¶
method to update parallelogram light using center/target 3D points and scalar lengths of u/v sides (missing in v0.8.0)
Changes¶
lower memory usage on both host and gpu
tested with pythonnet 2.5.1 and Mono 6.x - linux installation made easier
v0.8.1 - 2020-06-14¶
Added¶
camera mode for baking 360 degree panoramic views
support 16 bit per channel and hdr (32 bit fp per channel) output to image files and ndarray
support reading hdr images
Fixed¶
correct light emission in volumes
fix restoring scene global variables from json
more verbose messaging on initialization problems
fix camera switching when ray generation program changes
v0.8.0 - 2020-06-04¶
Added¶
diffuse/reflective/plastic material transparency handled with alpha channel of textures
load multiple meshes from .obj with materials specified in a dictionary, and an option to select parent mesh (then transormations of parent are applied to children meshes as well)
setup parallelogram light using center/target 3D points and scalar lengths of u/v sides
method to select objects for manual manipulation in gui (if e.g. cannot click object invisible in the view)
Fixed¶
scatterng in volumes: support enabled in background modes AmbientAndVolume, TextureFixed, and TextureEnvironment; subsurface color added to material parameters
keep_on_host argument of load_displacement() and load_normal_tilt() removed (value always set to false now; it was a bug in linux);
v0.7.2 - 2020-05-13¶
Added¶
raw mesh geometry (defined explicitly with vertices, faces, normals, and uv mapping)
selection of devices
Fixed¶
color range scaling for arrays of const coloe (utility function)
v0.7.1 - 2020-04-11¶
Added¶
set/release gimbal lock in camera rotations
geometry scaling by vector and w.r.t. provided point
sub-launch loop breaking on UI events (e.g. camera rotation)
Fixed¶
nan’s in mesh normal calculatons
improved bvh memory allocations can handle more primitives in data sets
texture values prescale when gamma is 1.0
v0.7.0 - 2020-03-27¶
PlotOptiX has moved to OptiX 7 framework in this version. This is a major change, basically a rewrite of entire ray-tracting engine, followed by several breaking changes in the Python API. Denoiser binaries included in GPU driver and improved compilation of shaders code are among advantages of the new framework. The long lasting issues with using PlotOptiX on some hardware configurations, related to the shader compilation should be resolved now.
OptiX 7 shifts significant parts of functionality to the application side. Multi-GPU support and most of the ray-tracting host state is now maintained by PlotOptiX code. Be warned that this code is fresh! If you spot problems, go ahead and submit issue to the tracker on GitHub.
Changes¶
no need to install denoiser binaries separately, no OptiX binaries shipped with PlotOptiX package (these libraries are now included in the GPU driver)
setup_denoiser() removed, denoising is now configured with add_postproc() method
uniform configuration of textures used by materials, geometries, background, etc., see load_texture() and set_texture_2d() methods
material textures are now referenced by texture name instead of full texture description included in the material definition
some of material properties names changed, see updated pre-defined materials
NormalTilt removed from GeomAttributeProgram, surface normals are modulated with material textures
tonal correction parameter tonemap_igamma (inverse value of gamma) changed to tonemap_gamma (gamma value)
JSON structure changed and not backward-compatible for several scene components, which means scenes saved with earlier releases wont load with v0.7.0
Added¶
surface roughness textures
load_texture() method to facilitate reading textures from file
v0.5.2 - 2019-10-15¶
Fixed¶
dependency on vcruntime140_1.dll in Windows binaries, introduced in v0.5.1 with the VS tools upgrade
v0.5.1 - 2019-09-27¶
Added¶
ray tracing timeout parameter, use set_param(rt_timeout=n_ms) and get_param(“rt_timeout”)
Fixed¶
timeout instead of freeze if stucked in the internal OptiX launch() function
default lighting was not initialized properly after refactoring made in v0.5.0
v0.5.0 - 2019-09-20¶
Added¶
scene saving/loading in JSON file format or python’s dictionary (note, format is not finally freezed and may change on migration to OptiX 7)
callbacks re-configurable after initialization
load selected/all/merged objects from Wavefront .obj files
thin-walled material
Changes¶
load_mesh_obj() method renamed to load_merged_mesh_obj(); the new load_mesh_obj() loads meshes selected by the name or loads all meshes from the file with no merging
light shading mode configured with set_param() and get_param() methods
v0.4.8 - 2019-09-07¶
Added¶
Oren-Nayar diffuse reflectance model (in addition to the default Lambertian), adjustable surface roughness
adjustable surface rougness also for metalic and dielectric (glass) materials, improved predefined materials
Changes¶
metalic and mirror materials use primitive colors to colorize the reflection (primitive color overrides surface albedo) so color data can be effectively used also with these materials
v0.4.7 - 2019-08-28¶
Added¶
select and rotate/move/scale objects and lights in GUI with mouse (same as for the camera)
status bar in GUI, shows selected item, 2D/3D coordinates of the surface under the pointer, and FPS
method to set fixed size of the ray-tracing output in GUI (or go back to auto-fit to window size)
v0.4.6 - 2019-08-19¶
Added¶
methods to rotate camera about given point, eye about target, target about eye, in local and global coordinates
Changes¶
calculate normal tilt on the fly in the surface displacement mode, speed not affected, much lower gpu memory footprint
Fixed¶
normal tilt mode in textured parallelepipeds bug resulting with transparent walls in some configs
v0.4.5 - 2019-08-11¶
Added¶
particles geometry with 3D orientation (so textures can be applied), textured glass color
shading normal tilt (particles, parallelograms, parellelepipeds, tetrahedrons) and surface displacement (particles) using texture data
overlay a texture in 2D postprocessing
v0.4.2 - 2019-07-23¶
Added¶
method to get light source parameters in a dictionary
examples installer - so examples compatible with the recent PyPI release can be downloaded locally without cloning the repository
Fixed¶
OptiX-CUDA interop: readback buffer pointer is now obtained for a single GPU in multi-GPU systems, this solves issue on multi-GPU systems
v0.4.1 - 2019-07-14¶
Added¶
2D color preprocessing utility
reading normalized images
Fixed¶
read_image method name in linux library loader
v0.4.0 - 2019-07-06¶
Added¶
AI denoiser
light dispersion in refractions
method to update material properties after construction
enable textured materials
utilities for reading image files to numpy array, support for huge tiff images (>>GB)
Fixed¶
update of parallelogram light properties
selection of SM architecture
v0.3.1 - 2019-06-26¶
Added¶
textured background (fixed texture or environment map, from numpy array or image file)
json converters for vector types (more compact scene description)
Fixed¶
removed dependency on CUDA release, CUDA required for video encoding features only
v0.3.0 - 2019-06-09¶
Added¶
linux support
parametric surface
Changes¶
update to NVIDIA Video Codec SDK 9.0 and FFmpeg 4.1
no need for CUDA_PATH environment variable
v0.2.2 - 2019-05-26¶
Added¶
color calculation convenience method: scaling, exposure and inverted gamma correction
h.264 encoder profile and preset selection
Changes¶
major speed improvement in general, plus faser convergence in out of focus regions
refactoring for linux support
Fixed¶
missing parallelogram support
v0.2.1 - 2019-05-19¶
Added¶
OpenSimplex noise generator
basic interface to the video encoder (save video output to mp4 files)
save current image to file
v0.2.0 - 2019-05-12¶
Added¶
RTX-accelerated mesh geometry for surface plots, reading 3D meshes from Wavefront .obj fromat
several configurable 2D postprocessing stages
Fixed¶
bug on geometry update when data size was changed with u/v/w vectors not provided
v0.1.4 - 2019-04-25¶
Added¶
methods to rotate geometry/primitive about provided 3D point
autogenerated documentation, improved and completed docstring in the code
Changed¶
use tuples instead of x, y, z arguments in rotation/move methods
v0.1.3 - 2019-04-19¶
Two weeks and some steps from the initial release. Starting changelog.
Added¶
RTX-accelerated tetrahedrons geometry
generate aligned or randomly rotated data markers if some vectors are missing
methods to read back camera eye/target, light position, color and r/u/v
get_param() to read back the rt parameters
this changelog, markdown description content type tag for PyPI
use [Semantic Versioning](https://semver.org/spec/v2.0.0.html)