Add VTK rendering improvements
ENH: Use vtkTriangleMeshPointNormals
The main bottleneck with real-time VTK rendering so far
appeared to be the normals computation. This commit addresses
that issue by making use of the latest normals computation
filter in VTK:
While this filter is much (5 to 16 times) faster than
vtkPolyDataNormals, it does not check for consistency in the
cell orientations that could cause inverted normals, which
is why the vtkPolyDataNormals is called once in the surfacemesh
renderdelegate to retrieve consistent cells for the input mesh.
See VTK merge request for more information : vtk/vtk!2271 (merged)
PS: That MR requires the latest commits from VTK master, which does not include work made on texture wrap mode nor on multi texture attributes yet:
BUG: fix VTK rendering when framerate not fixed
When the framerate was not fixed, the next render pass
would be called using
CreateOneShotTimer(0) while its
parameter minimum value is 1 (in milliseconds). 0 would
set it up for the default value of 10 ms.
ENH: Display framerate in window
P key (for "Print text", since f should be for
fullscreen) to display the rendering framerate in the left
Needed to override
SetCurrentRenderer to add the textActor.
Only update the displayed framerate value every second, which
requires the variables
m_lastFpsUpdate (last time since the
value was updated), and
m_nbrOfFrames (number of frames that
were rendered since the last update).
ENH: Allow debug rendering while simulation runs
Addresses suggestions made here: a63f98b5 (comment 212643)
It would be great to have the option of using pan-zoom-rotate when simulation is running for certain applications. I keep pressing 'S' and 'E' in succession to see if everything is good for an example i was working on. It need not be a default run mode option. - @sreekanth-arikatla
- Rename VTKRenderer::setup into VTKRenderer::setMode
- Add VTKRenderer::getMode
- Add VTKViewer::getRenderingMode wrapping the one above
- Consider Rendering Mode in Mouse event callbacks instead of simulation status
- Allow to switch to Debug rendering and back with the
ENH: Triangulate polydata in VTK reader
Ensure the surface mesh read will only have triangles and no triangle strips or other cells. Fixes #115 (closed).