Method SetCameraShaderParameters

Rendering/OpenGL2/vtkOpenGLStickMapper.cxx:214–264

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//------------------------------------------------------------------------------
void vtkOpenGLStickMapper::SetCameraShaderParameters(
  vtkOpenGLHelper& cellBO, vtkRenderer* ren, vtkActor* actor)
{
  vtkShaderProgram* program = cellBO.Program;

  vtkOpenGLCamera* cam = (vtkOpenGLCamera*)(ren->GetActiveCamera());

  vtkMatrix4x4* wcdc;
  vtkMatrix4x4* wcvc;
  vtkMatrix3x3* norms;
  vtkMatrix4x4* vcdc;
  cam->GetKeyMatrices(ren, wcvc, norms, vcdc, wcdc);

  if (program->IsUniformUsed("VCDCMatrix"))
  {
    program->SetUniformMatrix("VCDCMatrix", vcdc);
  }

  if (!actor->GetIsIdentity())
  {
    vtkMatrix4x4* mcwc;
    vtkMatrix3x3* anorms;
    ((vtkOpenGLActor*)actor)->GetKeyMatrices(mcwc, anorms);
    if (program->IsUniformUsed("MCVCMatrix"))
    {
      vtkMatrix4x4::Multiply4x4(mcwc, wcvc, this->TempMatrix4);
      program->SetUniformMatrix("MCVCMatrix", this->TempMatrix4);
    }
    if (program->IsUniformUsed("normalMatrix"))
    {
      vtkMatrix3x3::Multiply3x3(anorms, norms, this->TempMatrix3);
      program->SetUniformMatrix("normalMatrix", this->TempMatrix3);
    }
  }
  else
  {
    if (program->IsUniformUsed("MCVCMatrix"))
    {
      program->SetUniformMatrix("MCVCMatrix", wcvc);
    }
    if (program->IsUniformUsed("normalMatrix"))
    {
      program->SetUniformMatrix("normalMatrix", norms);
    }
  }

  if (program->IsUniformUsed("cameraParallel"))
  {
    cellBO.Program->SetUniformi("cameraParallel", cam->GetParallelProjection());
  }
}

//------------------------------------------------------------------------------
void vtkOpenGLStickMapper::SetMapperShaderParameters(