void CaptureReflection()

in ReplicaSDK/include/MirrorRenderer.h [93:120]

• 23 lines of code
• 4 McCabe index (conditional complexity)

  void CaptureReflection(
      const MirrorSurface& mirror,
      PTexMesh& ptexMesh,
      const pangolin::OpenGlRenderState& cam,
      GLenum frontFace,
      const bool drawDepth=false,
      const float depthScale=1.0f) {
    if (!InView(mirror, cam))
      return;
    // render reflections to texture
    pangolin::OpenGlRenderState reflectCam(
        cam.GetProjectionMatrix(), cam.GetModelViewMatrix() * GetReflectionMatrix(mirror));

    // Check which side of the surface we're on to render the right clip plane
    const Eigen::Vector4d t =
        ((Eigen::Matrix4d)cam.GetModelViewMatrix().Inverse()).topRightCorner(4, 1);
    const double signFlip = mirror.Equation().cast<double>().dot(t) > 0 ? 1.0 : -1.0;

    Eigen::Vector4f plane = mirror.Equation();
    plane(3) -= surfaceOffset;

    BeginDrawScene(frontFace);
    if (drawDepth)
      ptexMesh.RenderDepth(reflectCam, depthScale, signFlip * plane);
    else
      ptexMesh.Render(reflectCam, signFlip * plane);
    EndDrawScene(frontFace);
  }