Graphic3d_TypeOfShaderObject enumeration has been extended by Geometry shader object type.
OpenGl_ShaderProgram::Initialize() processes new shader object types when supported by OpenGL version.
Declarations.glsl has been fixed so that occFragColor is defined only for
Fragment Shader object only (by handling new FRAGMENT_SHADER macros).
Improved documentation of Graphic3d_ArrayOfPrimitives class.
vshader Draw Harness command has been extended to support definition
of Shader Object types other than Vertex and Fragment shader.
AIS_Manipulator::ObjectTransformation() - fixed using of manipulator axes
with temporarily applied transformation (when BehaviorOnTransform::FollowRotation is TRUE).
Start axes orientation (at the beginning of Rotation) is now used instead.
Test for 0025930: thickness of spherical cap is invalid
Test for 0025939: SIGSEGV in MakeThickSolid
Test for 0025940: MakeThickSolid creates C0 continuous edges
Test for 0026604: GeomFill_Pipe doesn't fit given bounds
Test for 0026655: ChFi3d_Builder algorithm fails to build fillets if some input edges connect with seam edges
Test for 0026697: BRepFeat_MakePrism returns empty compound
Test for 0026716: Mesher cannot create a mesh of brep model due to ShapeFix_Wire::FixShifted()
Test for 0026735: Adjacent perpendicular edges are detected as overlapped by DRAW command checkoverlap.
Test for 0026793: General Fuse algorithm produces incorrect result
Test for 0026795: Unable to perform General Fuse operation on the attached faces
Test for 0026842: bopsection result does not contain any edges.
Test for 0026882: Edge/Edge intersection algorithm produces incorrect result
Test for 0026883: Wrong result of Boolean Operation
Test for 0026889: Very poor mesh result from shape
Test for 0026928: Edges are meshed too coarsly
Test for 0026933: Section works unstably due to incorrect work of the method IsExistingPaveBlock
Test for 0026943: Wrong projection of helix on cylinder by ShapeConstruct_ProjectCurveOnSurface
Test for 0026957: Unify same domain operation is slow for multiple shells
Test for 0026978: Interactive selection is insensitive to swept shell
Test for 0027004: ShapeUpgrade_UnifySameDomain produces invalid result
Test for 0026280: Mechanism 'ShapeFix' is unable to heal a shape
Test for 0026282: Mechanism 'ShapeFix' has errors revealed by wire tool 'FixTails'
Test for 0026291: BRepMesh produces mesh with gap on the attached shape
Test for 0026382: BRepMesh produces internal nodes outside the face interior
Test for 0027453: Wrongly meshed surface
Test for 0027524: The command checkshape does not find the maximal deviation between curves representations
Test for 0026225: Wrong result of chamfer in case of coinciding bound of chamfer's surface with bound of a face
Test for 0026295: Sweep fails with BRepFill_ContactOnBorder
Test for 0026374: GeomFill_Profiler fails to unify BSplines if one has knot distance less than PConf
Test for 0026558: Failing to build isoline for offset surface
Test for 0026563: Boolean cut operation in new API multi-tool mode performs fuse instead of cut
Test for 0026568: Exception when creating pipe
Test for 0027419: Incorrect result of Edge/Face intersection
Test for 0027469: Regression vs 6.9.1: Wrong result of Edge/Face intersection
Test for 0027471: Wrong result of pipe
Test for 0027472: Wrong result of cut
Test for 0027614: Sewing returns result with too high tolerance
Test for 0026154: Visualization - v3d viewer grid disappears due to automatic z-fit
Test for 0026174: Loss of color after the second write of file (iges).
Image_VideoRecorder - added new class for video recording using FFmpeg framework.
Draw Harness command vanimation has been extended with new options for video recording.
New optional dependency has been introduced - CSF_FFmpeg.
AIS_LengthDimension interface was extended to allow setting a custom dimension direction.
The value of dimension in this case is equal to projection of the distance between dimension attributes(points) to this direction.
vlengthparam command is implemented to set custom length direction in DRAW.
Graphic3d_AspectFillArea3d now stores array of textures.
Graphic3d_TextureParams stores texture unit for mapping texture.
OpenGl_Context::BindTextures() - context now manages the set of active textures.
Related code has been removed from OpenGl_Workspace.
OpenGl_Sampler has been extended to hold texture parameters structure.
OpenGl_Texture now holds OpenGl_Sampler instance as class field.
OpenGl_Texture inherits new class OpenGl_NamedResource and holds
texture identifier used for sharing resource in OpenGl_Context.
OpenGl_RaytraceGeometry now creates bindless textures taking
Sampler object directly from OpenGl_Texture.
OpenGl_Context::BindTextures() automatically recreates immutable
Sampler Object on texture parameters change.
Declared new structure OpenGl_ArbSamplerObject for platform-neutral
usage of related functionality.
Related functions are now loaded within OpenGL ES 3.0+.
Declarations.glsl - occActiveSampler has been renamed to occSampler0
with aliases occSamplerBaseColor (main) and occActiveSampler (for compatibility).
Additional texture samplers should be declared explicitly
within specific GLSL program as occSampler1, occSampler2, etc.
AIS_Shape and AIS_ColoredShape now computes Shaded presentation
with UV coordinates if texture mapping is enabled in Drawer.
vshaderprog now accepts Shader source code as parameter.
AIS_Shape and AIS_ColoredShape now computes Shaded presentation
with UV coordinates if texture mapping is enabled in Drawer.
OpenGl_Context::SetTextureMatrix() - fixed inconsistent handling
of texture cooridnates translation vector.
vtexture command has been extended to handle new arguments:
* -trsfTrans, -trsfScale, -trsfAngle defining transformation matrix
* -setFilter, -setAnisoFilter to setup texture filtering
Graphic3d_RenderingParams - introduced new parameters CameraFocalPlaneDist and CameraApertureRadius managing DOF effect.
TKOpenGl - added new ray generation logic to RaytraceBase.fs.
vrenderparams command - added -focal and -aperture parameters.
OpenGl_View.hxx - function for ray generating was split into two functions (ray tracing and path tracing).
OpenGl_View_Raytrace.cxx - fixed interaction between adaptive sampling and stereo camera
TopAbs::ShapeTypeToString() is now used instead of duplicating TopAbs_ShapeEnum printing code.
vselmode now accepts shape type string for activating standard AIS_Shape selection modes.
Weighted, Blended Order-Independent Transparency algorithm has been added rasterization pipeline.
In contrast to classical blending transparency it makes transparent objects look independent
from point of view. It also gives better depth occlusion when being used together with a weight factor
based on value of a GL depth buffer. The feature supports desktop OpenGL, OpenGL ES 3.0, ANGLE
and can be used together with MSAA on desktop GL.
To be used it require availability of:
1) Shaders pipeline.
2) Floating point color format for framebuffer (GL_ARB_color_buffer_float).
3) Multiple render targets (GL_ARB_draw_buffers).
Patch does not modify API and does not require application porting.
It adds new rendering options to Graphic3d_RenderingParams structure:
a) Transparency method from enumeration.
b) Scalar factor [0-1] controlling influence of a fragment's depth to its visibility.
Patch also simplifies processing of transparent objects for standard method:
rendering priority of transparent graphical structures is managed automatically,
therefore there is no need to care about it at application's side.
Graphic3d_RenderingParams::RenderResolutionScale - added new option
defining scale factor for allocating off-screen rendering buffers
relative to native resolution of window buffer.
Scale factor can be below 1.0 (lower resolution) or higher (as analog of super sampling),
but can not be combined with MSAA settings.
Draw Harness command vrenderparams has been extended with option -rendScale
managing introduced option Graphic3d_RenderingParams::RenderResolutionScale.
vcaps has been extended with option -useWindowBuffer for managing
OpenGl_Caps::useSystemBuffer option.
vrepaint has been extended with option -immediate
for testing immediate layer redraw
OpenGl_View::blitBuffers() - eliminate compiler warning on Android
Existing OCCT path tracing engine used very simple additive material (BSDF) model, so it was possible to reproduce
behavior only of very basic materials such as metal, glass, or plastic. However, some important in CAD industry
materials like car paint or ceramic could not be modeled well. In this patch, OCCT BSDF was significantly improved
by replacing additive model with two-layered scattering model. Therefore, we have base diffuse, glossy, or transmissive
layer, covered by one glossy/specular coat. The layers themselves have no thickness; they can simply reflect light or
transmits it to the layer under it. Balancing different combinations of layer properties can produce a wide range of
different effects. At the same time, disabling the first (coat) layer allows to keep full compatibility with previously
supported scattering model. All new parameters are available via 'vbsdf' command.
Location of new sample for few material examples:
samples\tcl\pathtrace_materials.tcl
Fix shader compilation issue.
Fix test case sample_ball_alpha.
Shaders_PathtraceBase_fs.pxx - regenerate resource from origin
AIS_InteractiveContext - removed the following unused properties:
- PreSelectionColor(), DefaultColor(), WasCurrentTouched(), ZDetection().
AIS_InteractiveObject - removed unused property SelectionPriority().
Prs3d_Drawer - removed properties HighlightStyle() and SelectionStyle().
Graphic3d_HighlightStyle has been superseded by Prs3d_Drawer
inheriting from new class Graphic3d_PresentationAttributes.
Graphic3d_PresentationAttributes (as Graphic3d_HighlightStyle replacement)
has been extended with new properties:
- ZLayer() defining Z-Layer for highlighting presentation.
- DisplayMode() defining display mode for highlighting.
StdSelect_BRepSelectionTool methods have been corrected to take
SelectMgr_EntityOwner instead of StdSelect_BRepOwner.
StdSelect_Shape - duplicated field myDrawer has been dropped.
AIS_InteractiveObject - myDrawer->Color() is now used instead of myOwnColor,
myDrawer->Transparency() instead of myTransparency
and myDrawer->ZLayer() instead of myZLayer.
PrsMgr_PresentationManager::Unhighlight() now unhighlight all modes.
The method taking Mode as argument has been marked deprecated.
New enumeration Prs3d_TypeOfHighlight has been introduced
defining different highlight types.
AIS_InteractiveObject::HighlightStyle() now takes enumeration argument
and defines different styles for Global and Local selection.
ComesFromDecomposition() property has been moved
from StdSelect_BRepOwner to SelectMgr_EntityOwner.
Create a general draw command 'VRelation' and drop the old 'relation' commands.
Add test cases for new draw command "vrelation".
Add two new methods: Activate and Deactivate which activate/deactivate the given selection mode for all displayed objects.
Eliminate deprecated local context methods in ObjectCommands, QABugs.
Eliminate deprecated local context methods in mfc standard sample and qt samples.
- added implementation of mentioned methods for neutral point;
- sequence of detected objects was replaced by sequence of detected owner's indexes in AIS_InteractiveContext;
- commands vselnext and vselprev were corrected to update viewer properly;
- test case for issue #27530.
Added classes AIS_Animation, AIS_AnimationCamera, AIS_AnimationObjectLocatio.
Draw Harness command vanimation has been modified to manage animation timeline.
Command vfit has been extended with option -noupdate.
Formatting of vviewparams command output has been improved.
Functionality of commands vlocreset, vlocmove, vloctranslate, vlocrotate,
vlocmirror, vlocscale has been merged into vlocation/vsetlocation.
vlocation now can print the current local transformation of the object.
v3d/ivtk test group does not call vfit anymore.
Fixed misprint in test cases bugs/vis/bug24623_3 and bug25532.
Graphic3d_ZLayerSettings - public fields have been replaced by methods.
Added new property Origin defining local coordinate system for all Layer objects.
Syntax of Draw Harness command VZLayer has been redesigned.
Graphic3d_CStructure now stores bounding box with double precision floats.
OpenGl_BVHTreeSelector - frustum culling now works with double precision floats.
OpenGl_ShaderManager, per-vertex shading and per-fragment shading
- do not apply model-world matrix on the light sources
which are expected to be defined in world-space.
Added DRAW command dsetsignal, resetting OSD signal handler with either armed or disabled FPE handler, according to an option.
If called without arguments, it sets FPE handler only if environment variable OSD_FPE is defined (with value different from 0).
On start, DRAW calls dsetsignal to set FPE signal if CSF_FPE is defined.
Test bugs fclasses bug6143 uses dsetsignal to set FPE handler unconditionally before the test command, and resets it to default at the end.
A number of changes in the code have been done in order to fix floating point exceptions that became generated after enabling signals:
- Global functions Sinh() and Cosh() defined in Standard_Real.hxx are improved to raise Standard_NumericError exception if argument is too big (greater than 710.47586), instead of relying on system treatment of floating point overflow. These functions are used instead of sinh and cosh in ElCLib.cxx.
- Maximal value of parameter on hyperbola is restricted by 23 (corresponding to ~1e10 in 3d) in order to avoid FP overflow in Extrema_GenExtCS.cxx, ShapeFix_EdgeProjAux.cxx.
- Interface of the root curve adaptor class Adaptor3d_Curve has been updated to add new virtual methods BasisCurve and OffsetValue. They complement the adaptor for the case of offset curves. These methods are used in Extrema_GenExtCS.cxx to restrict domain search in the case of offset of hyperbola, in order to get rid of floating point overflow. All classes inheriting Adaptor3d_Curve have been changed to implement the new virtual methods.
- Protection against division by zero has been implemented in ApproxInt_KnotTools.cxx, BRepClass3d_SClassifier.cxx, BRepGProp_Face.cxx, BRepMesh_FastDiscretFace.cxx, Geom2dGcc_Circ2d2TanOnIter.cxx, Geom2dInt_Geom2dCurveTool.cxx, IntPolyh_MaillageAffinage.cxx.
- Protection against calling of math functions of infinite arguments has been added in BRepCheck_Edge.cxx, BRepLib.cxx, CSLib_NormalPolyDef.cxx, Extrema_FuncExtPC.gxx, Extrema_GExtPC.gxx, Extrema_GLocateExtPC.gxx, Intf_InterferencePolygonPolyhedron.gxx, ShapeAnalysis_Surface.cxx, ShapeAnalysis_TransferParametersProj.cxx, ShapeAnalysis_Wire.cxx, math_FunctionSetRoot.cxx.
- Proper initialization of local variables is done in BOPAlgo_PaveFiller_6.cxx, XSDRAWSTLVRML.cxx.
- Inconsistent usage of Standard_Boolean* to access integer data in HLR (caused by #27772) is corrected
Some test cases have been updated to actual state.
- introduces a wrapper for setting up highlight properties: Graphic3d_HighlightStyle;
- API of all methods that use highlight or selection color is changed to deal with Graphic3d_HighlightStyle;
- highlight in shading mode now supports transparency, implemented via blending;
- transparency for selection can also be set, but implementing custom entity owners with additional presentation on application level;
- methods PrsMgr_PresentationManager::Highlight, PrsMgr_PresentationManager::BoundBox that highlight object with hard-coded color are removed;
- deprecated methods of SelectMgr_EntityOwner, that use presentation manager's highlight method, were removed;
- methods of IsHilighted AIS context with selection color checks were replaced;
- added API to store dynamic and selection highlight to Prs3d_Drawer class;
- customization of dynamic and selection highlight for particular objects is now available through SelectMgr_SelectableObject::HilightAttributes();
- AIS_InteractiveContext highlight methods were updated to support individual highlight styles of interactive objects;
- introduced new command - vselprops, that allows to customize global selection and highlight properties like autoactivation, pixel tolerance and colors;
- Draw Harness commands vautoactivatesel and vselprecision were removed, use vselprops instead;
- fixed bug in command's parser;
- test case for issue #27818
Graphic3d_Camera::TransformMatrices redundant NCollection_Handle usage
has been replaced with validity flags.
Graphic3d_TransModeFlags now defined as enumeration, not integer bit flags.
Graphic3d_TMF_PanPers and Graphic3d_TMF_FullPers have been removed.
Graphic3d_TMF_ZoomRotatePers has been introduced.
Graphic3d_TransformPers is now inherits Standard_Transient.
Graphic3d_TransformPers now defines dedicated constructors
for 3D persistence (zoom / rotate) and 2D persistence (2d / trihedron).
2D persistence now supports dedicated values for X and Y offsets.
The corner is now specified by enumeration Aspect_TypeOfTriedronPosition
instead of indirect interpretation of anchor point values.
Fixed handling of Graphic3d_TMF_ZoomRotatePers (combination of Graphic3d_TMF_RotatePers + Graphic3d_TMF_ZoomPers).
PrsMgr_PresentableObject, Graphic3d_CStructure now hold
Handle(Graphic3d_TransformPers) instead of a value.
Method ::SetTransformPersistence(), ::TransformPersistence()
now works with Handle(Graphic3d_TransformPers).
Old methods have been marked deprecated.
0027734: Configuration - TKIVtkDraw build fails with TBB: Remove unnecessary define statement (windows specific).
Small correction of test case for issue CR27567
Graphic3d_Camera definition has been exended by optional Tile property (Graphic3d_CameraTile structure).
V3d_View::ToPixMap() now performs tiled dump when image size exceeds hardware limits.
OpenGl_View::Redraw() - fixed dump of immediate Z layers in no stereo and no MSAA case.
OpenGl_Context now tracks viewport values.
Draw Harness command vdump has been extended with new argument -tileSize.
Graphic3d_ClipPlane - Graphic3d_AspectFillArea3d is now stored as class field.
OpenGl_CappingAlgo::RenderCapping() now handles special mode
preserving material from rendered object.
MeshVS_ElementalColorPrsBuilder::Build() now creates single primitives group
for triangles, thus Closed flag is correctly applied.
Redundant methods OpenGl_Structure::DrawGroups() and ::renderClosedGeometry()
have been removed.
Draw Harness, ViewerTest - vaspects now preserves display mode
and location when assigning sub-shape aspects.
The syntax of command vclipplane has been revised
(preserving compatibility with old syntax):
- Use "-param" style syntax for all arguments.
- Eliminate redundant arguments "change", "view", "object".
- Allow passing multiple parameters withing single call.
- Do not require "create" command - create new plane implicitly.
- "maxplanes" argument does not require view name anymore.
- "delete" does not throws TCL exception for non-existing plane.
- "view" argument without list now applies to active view.
- Handle * and ALL withing "delete" to remove all defined planes.
update test case bugs/vis/bug26028
OpenGl_Caps - flag ffpEnable is now initialized to false on desktop OpenGL.
OpenGl_Context::init() - now prints error if OpenGL version does not support GLSL
and switches OpenGl_Caps::ffpEnable to true.
update test cases
1) Zoom persistence mode now fixes object in pixel coordinates and is independent on view size
2) Used gp_GTrsf instead of gp_Trsf SelectMgr_ViewerSelector to store Graphic3d_Mat4d
3) Zoom persisted objects changed behavior (become bigger) therefore test cases were updated according to new state.
4) Corrected scale for rectangular frustum
Updated test for manipulator
AIS_Manipulator class has been created to provide interactive services for manipulating with mouse local transformations of other interactive objects.
The class features three kinds of transformation modes for attached objects:
- translation of through axis
- scaling within axis
- rotation around axis
For more details please have a look at description of the class in reference manual or in header file.
The patch includes DRAW test workbench for evaluating the AIS_Manipulator features.
Clang warning (override)
OpenGl_ShaderManager::stdComputeLighting() - handle single directional light specifically
for compatibility with broken OpenGL ES drivers.
Added test cases using built-in GLSL shading programs.
Possibility to customize layout of installation of OCCT is introduced by:
- variable INSTALL_DIR_LAYOUT - select one of the two predefined layouts: either Windows (classic OCCT layout) or Unix (Linux standard)
- variables INSTALL_DIR_* (BIN, LIB, INCLUDE, RESOURCE, DOC, TESTS, SCRIPT, SAMPLES, DATA) - specify locations of relevant components
- variable INSTALL_DIR_WITH_VERSION (bool) - specifies whether full version of OCCT should be used in paths in Unix layout
Files LICENSE_LGPL_21.txt and OCCT_LGPL_EXCEPTION.txt are always installed.
Environment is extended to support non-default layouts.
For that, environment variables "CSF_OCCT*Path" are defined, corresponding to CMake variables INSTALL_DIR_* described above.
Visual Studio environment, DRAW, tests, samples are amended to use these variables instead of (or as alternative to) CASROOT.
Settings of Products-specific vars are removed from environment scripts.
File genconf.bat was corrected to avoid error message for the case when path to TCL contains spaces.
Product name in rc files changed to "Open CASCADE Technology".
OpenGl_Texture::Init2DMultisample() - new method to initialize multisampled texture.
Graphic3d_RenderingParams::NbMsaaSamples - add option defining MSAA samples number.
RayTracing will keep using FBO without MSAA, however it is possible to combine
MSAA for rasterization and FSAA for RayTracing.
OpenGl_FrameBuffer constructor has been changed to do not take arguments.
OpenGl_FrameBuffer::Init() method has been extended with mandatory parameters
defining Color and Depth attachment formats
and optional parameter defining number of MSAA parameters.
Draw Harness, add option -msaa to vrenderparams.
- Use two different FBOs for accumulating frames for left/right eye projection.
- Added equality checks to camera modification methods to avoid camera updates when performing identity operations.
OpenGl_Clipping - do not setup clipping planes using FFP when it is disabled.
OpenGl_ShaderManager - apply 2d texture coordinates transformation in GLSL programs.
OpenGl_Context::SetTextureMatrix() - move texture matrix assignment from OpenGl_Workspace::setTextureParams() to OpenGl_Context.
Add test case demo/samples/dimensionsglsl with FFP turned OFF.
Add test case v3d/glsl/texture_trsf applying texture transformation.
Small correction of test case for issue CR26122
