OpenGl_Resource was slightly corrected and OpenGl_Element was extended
with Release method to manage GPU resources.
OpenGl_PrimitiveArray now uses new OpenGl_VertexBuffer class (requires OpenGL 1.5+).
Strange workarounds for feedback mode were removed.
OpenGl_Context now provides access to shared GPU resources
and manages resources queue for delayed release
(replaces functionality of removed OpenGl_ResourceCleaner).
Loaded GL_ARB_texture_buffer_object and GL_ARB_draw_instanced extensions.
Global maps of views, workspaces and structures
were moved to OpenGl_GraphicDriver members.
UserDrawCallback() function moved to OpenGl_GraphicDriver methods.
Aspect_GraphicCallbackStruct now holds handle of OpenGl_Context
instead of system-dependent pointers to GL context definition.
New classes NCollection_Vec2, NCollection_Vec3 and NCollection_Vec4
implements interface to low-level data (points, vertices, colors) in GLSL-style.
Removed EnableVBO argument from vdrawparray Draw Harness command
Corrected compilation errors
Fixed wrong argument in Index VBO initialization
Fixed several cases of incorrect memory management in TKV3d
Visual3d_ViewManager::Remove()
Destroy structures before last view removed for correct GPU resources management.
Graphic3d_Structure::GraphicClear()
Remove groups to avoid usage of dead OpenGl_Group pointers.
V3d_View::Remove()
Fixed mistake in #0000280 patch.
Small correction
Fixed OCC280 test command
Replace removed view within created one in ViewerTest EventManager.
ViewerTest, do not create unused 3D view
In current design NIS_View always created and used for both - NIS objects and AIS objects.
Added Graphic3d_GraphicDriver::MemoryInfo() function.
Added vfps command to estimate average frame rate of 3D Viewer
Simplified vdrawsphere command
Removed turnVbo and performance measurements from vdrawsphere.
Added vvbo command to control VBO usage flag.
Added vmemgpu command to display GPU memory info from graphic driver
Added native handles to OpenGl_Context
Removed unused and unimplemented PolygonHoles
Removed unimplemented Polygon functions
Removed unused QuadrangleMesh functions
Removed unused TriangleMesh functions
Removed dead Bezier function declarations
Redirect Graphic3d_Group::Polyline() to primitives array
Move Prs3d_ShadedShape template code to StdPrs_ShadedShape
where it is only used before.
Remove TriangleSet usage from AIS_TexturedShape
Texture coordinates functionality added StdPrs_ShadedShape
to eliminate code duplication.
Eliminated usage of TriangleSet from QABugs_PresentableObject
Eliminated usage of TriangleMesh from StdPrs_ShadedSurface
Removed TriangleMesh and TriangleSet support
OpenGl_PrimitiveArray - render Edges only for primitives > GL_LINE_STRIP
Added vgrid command to show grid in 3D Viewer
Extend OpenGl_Context to provide GL2.0 core functionality
Added 'glext.h' header provided by Khronos group with definitions
and GL functions' types.
Added OpenGl_GlCoreXX structures with function list
to appropriate GL core functionality.
Fixed memory leak in OpenGl_Context destructor.
Eliminate inclusions of gl.h header
Use OpenGl_GlCore11.hxx instead.
Removed obsolote M_PI redefinitions.
Slightly cleaned up included headers.
Reuse definitions from glext.h
OpenGl_ArbVBO and OpenGl_ExtFBO originally provide own definitions
for OpenGL extensions.
