Metallic-Roughness shading model Graphic3d_TOSM_PBR has been implemented.
New materials descriptors Graphic3d_PBRMaterial have been added to Graphic3d_MaterialAspect.
PBR shading model requires OpenGL 3.0+ or OpenGL ES 3.0+ hardware.
Environment cubemap is expected to be provided for realistic look of metallic materials.
occLight_IsHeadlight() now returns bool instead of int.
Avoid using lowp for enumerations to workaround occLight_IsHeadlight()
ignorance on Adreno 308 caused by some GLSL optimizator bugs.
OpenGl_Texture::EstimatedDataSize() - fixed estimation for Cubemap textures.
OpenGl_Sampler::applySamplerParams() - fixed uninitialized GL_TEXTURE_WRAP_R in case of GL_TEXTURE_CUBE_MAP target.
Graphic3d_CLight is now defined as a class inheriting Standard_Transient,
so that it's fields now should be accessed through methods.
Graphic3d_CLight::IsEnabled() - new property allowing to disable light source everywhere.
Confusing alias OpenGl_Light has been removed.
Graphic3d_CLight::SetAttenuation() - the upper limit 1.0 of attenuation factors has been removed
since it contradicts to OpenGL specs and does not make sense.
Graphic3d_ZLayerSettings::Lights() - light sources list is now property of ZLayer.
When defined, it overrides light sources defined for View/Viewer.
New class Graphic3d_LightSet has been defined to define a set of light sources.
V3d_Light - removed obsolete interface for debug drawing lights sources.
V3d_Light is now an alias to Graphic3d_CLight.
V3d_TypeOfLight is now defined as a typedef to Graphic3d_TypeOfLightSource.
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.
FFP state management (light sources, matrices, clipping planes) has been
moved to OpenGl_ShaderManager for consistency with Programmable Pipeline.
OpenGl_Context::BindProgram() does not re-bind already active Program.
OpenGl_PrimitiveArray::Render() does not reset active Program at the end.
OpenGl_Context::ApplyModelViewMatrix() now checks if matrix differs
from already set one before modifying state in Shader Manager.
This allows avoing redundant state changes, matrix uploads onto GPU
and re-computation of inversed matrices.
NCollection_Mat4 has been extended with equality check operators for proper comparison.
OpenGl_ShaderManager - the tracking Material state has been added.
Removed unreachable states OPENGL_NS_RESMAT, OPENGL_NS_TEXTURE and OPENGL_NS_WHITEBACK.
Fixed resetting FFP material state after displaying GL_COLOR_ARRAY vertices;
the Material state within Shader Manager is now
invalidated within OpenGl_VertexBuffer::unbindFixedColor().
OpenGl_Workspace::ApplyAspectFace() - fixed invalidating Material State
when only Highlighting style is changing.
Quantity_ColorRGBA has been introduced as convenient structure holding Vec4 for OpenGL.
Graphic3d_PolygonOffset has been added as replacement for TEL_POFFSET_PARAM.
Duplicating definition of Hatch Styles TEL_HS_*** has been removed;
Aspect_HatchStyle enum now follows values of TEL_HS_*** for compatibility.
TelCullMode enum has been removed.
Aspect_AspectLine has been merged into Graphic3d_AspectLine3d.
Aspect_AspectMarker has been merged into Graphic3d_AspectMarker3d.
Aspect_AspectFillArea has been merged into Graphic3d_AspectFillArea3d.
Graphic3d_CAspectFillArea have been removed.
OpenGl_AspectLine now stores Graphic3d_AspectLine3d as class field.
OpenGl_AspectMarker now stores Graphic3d_AspectMarker3d as class field.
OpenGl_AspectText now stores Graphic3d_AspectText3d as class field.
OpenGl_AspectFace now stores Graphic3d_AspectFillArea3d as class field.
Graphic3d_AspectFillArea3d - back face culling is now enabled by default.
TKOpenGl now relies on Graphic3d_Group::IsClosed() flag to disable face culling.
StdPrs_ShadedShape now does not modify aspect for different culling modes.
Headers InterfaceGraphic_Graphic3d.hxx, InterfaceGraphic_telem.hxx, InterfaceGraphic_tgl_all.hxx
defining obsolete structures CALL_DEF_COLOR, CALL_DEF_POINT,
CALL_DEF_MATERIAL, CALL_DEF_TRANSFORM_PERSISTENCE, TEL_POINT, TEL_COLOUR
have been removed.
Useless and broken test case bugs/vis/buc60821 has been removed.
OpenGl_Workspace::myAspectFaceApplied and myAspectMarkerApplied have been replaced
from OpenGl_AspectFace*/OpenGl_AspectMarker*
to Handle(Graphic3d_AspectFillArea3d)/Handle(Graphic3d_AspectMarker3d).
This eliminates reading from freed memory
(e.g. when OpenGl_AspectFace is allocated on stack like in OpenGl_Trihedron).
OpenGl_PrimitiveArray::drawEdges() - fix drawing non-indexed array from VBO (access violation due to NULL handle).
AIS_Dimension::DrawArrow() - added missing initialization of 3D arrow aspect.
AIS_Manipulator::Compute() now creates dedicated Face Aspect for each axis.
V3d_CircularGrid, V3d_RectangularGrid now create dedicated line aspects with different color.
AIS_InteractiveObject::SetMaterial() - do not modify global ShadingAspect.
Add handle on environment texture in OpenGl_Workspace.
Add a new parameter UseEnvironmentTexture to the Graphic3d_ZLayerSettings.
OSD layers don't use environment texture by default.
zbuffertrihedron doesn't use environment texture.
vzlayer can enable/disable environment texture mappping.
Delete unnecessary files Graphic3d_TypeOfSurfaceDetail.hxx and V3d_TypeOfSurface.hxx.
Delete functions SurfaceDetailType and SetSurfaceDetailType functions from Graphic3d_CView.
Delete functions SurfaceDetailState and UpdateSurfaceDetailStateTo from OpenGl_ShaderManager.
Delete class OpenGl_SurfaceDetailState.
Delete functions SurfaceDetailType and SetSurfaceDetailType from OpenGl_View.
Delete functions SetSurfaceDetail and SurfaceDetail() from V3d_View.
Delete functions SetDefaultSurfaceDetail and DefaultSurfaceDetail from V3d_Viewer.
Delete draw command VSetTextureMode.
Add description in dox.
Expose interface of OpenGl_View (OpenGL graphics rendering methods) to client code
and collecting all high-level API methods of application views in V3d_View class.
1) Exposing interface of OpenGl_View:
The OpenGl_View inherits from new class Graphic3d_CView.
Graphic3d_CView is an interface class that declares abstract methods for managing displayed structures,
display properties and a base layer code that implements computation
and management of HLR (or more broadly speaking view-depended) structures.
In new implementation it takes place of eliminated Visual3d_View.
As before the instance of Graphic3d_CView is still completely managed by V3d_View classes.
It can be accessed through V3d_View interface but normally this should not be required as all its methods are completely wrapped.
In more details, a concrete specialization of Graphic3d_CView is created and returned by graphical driver on request.
Right after creation the views is directly used for setting rendering properties and adding graphical structures to be displayed.
The rendering of graphics is possible after mapping a window and activating the view.
The direct setting of properties makes obsolete usage of intermediate structures with display parameter
like Visual3d_ContextView and etc (the whole package of Visual3d become redundant).
2) Collecting all high-level API methods of application views in V3d package:
The patch includes elimination of Visual3d layer.
All of its methods that could be previously used by application are now exposed and should be accessed on the level of V3d entities.
- Introduced new class Graphic3d_CView.
This is a base class for render views.
Made possible to specialize concrete instances of the class by graphical driver.
- Moved all methods managing rendering views into interface of Graphic3d_CView.
The corresponding methods were removed from interface of graphical driver.
3) Eliminated Visual3d package:
- Logic of managing display of structures was put from Visual3d_ViewManager into Graphic3d_StructureManager.
- Removed Visual3d_View class. Logic of managing computed structures was put into base layer of Graphi3d_CView.
- Removed all intermediate structures for storing view parameters e.g. Visual3d_ContextView.
All settings are kept by instances of Graphic3d_CView
- Removed Visual3d_Light intermediate class.
All light properties are still stored in Graphic3d_CLight structure.
The structure is directly access by instance of V3d_Light classes.
- Moved all needed enumerations into Graphic3d package.
4) Update package D3DHost to new changes.
5) Update code of OCCT samples to new changes.
0025301: Visualization, TKOpenGl - transpose matrix manually before glUniformMatrix4fv()
OpenGl_View::ReleaseGlResources() - release GL resources of trihedron, do not destroy it
Generic class TCollection_Stack removed (along with TCollection_StackIterator and TCollection_StackNode).
Code using TCollection_Stack changed to equivalent use of TCollection_List (replacing Push -> Prepend, Top -> First, Pop -> RemoveFirst).
License statement text corrected; compiler warnings caused by Bison 2.41 disabled for MSVC; a few other compiler warnings on 54-bit Windows eliminated by appropriate type cast
Wrong license statements corrected in several files.
Copyright and license statements added in XSD and GLSL files.
Copyright year updated in some files.
Obsolete documentation files removed from DrawResources.
- The NCollection_Sequence (Graphic3d_SequenceOfHClipPlane) is used for handling ordered lists of clipping planes instead of NCollection_Set (Graphic3d_SetOfHClipPlane).
