Proposed Wynyard Crossing Bridge Visualisation Simulation Methodology - Buildmedia Limited - Auckland Council

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Proposed Wynyard Crossing Bridge Visualisation Simulation Methodology - Buildmedia Limited - Auckland Council
Proposed Wynyard Crossing Bridge - Visualisation Simulation Methodology
June 2019      © Copyright Buildmedia Limited

               Proposed Wynyard Crossing Bridge
            Visualisation Simulation Methodology

                        - Buildmedia Limited
Proposed Wynyard Crossing Bridge - Visualisation Simulation Methodology
June 2019      © Copyright Buildmedia Limited

                                                                          Contents

                                                                          1.0    Introduction

                                                                          2.0    Process Methodology – Visual Simulations

                                                                          3.0    Conclusion
Proposed Wynyard Crossing Bridge - Visualisation Simulation Methodology
June 2019       © Copyright Buildmedia Limited

1.0    Introduction                                                                 captured every 10 degrees using a specialist panoramic head to
                                                                                    remove parallax error.
       Buildmedia was engaged to prepare imagery visualizing the
       proposed bridge at Wynyard Quarter.                                          Camera positions for the viewpoints were captured by Precision
                                                                                    Aerial Surveys on the 18th of May 2019. The coordinate system
       The viewpoints were selected by Stephen Brown of Brown New                   used was NZTM. Vertical datum was corrected to chart datum to
       Zealand Limited.                                                             match the 3d model and tide heights.

       Buildmedia are recognized specialists in this discipline and utilise   2.2   Development of the 3d model of the Development
       the best surveying and computer visualisation practices available.           The 3D model of the proposed bridge was supplied to Buildmedia
       The proprietary techniques and processes Buildmedia has                      as a Revit file by Monk Mackenzie.
       developed, create robust and dependably accurate imagery.
                                                                                    The Revit file was imported into 3DS Max in the correct coordinate
       Buildmedia's work does not include the assessment or
                                                                                    system.
       interpretation of the visual simulations for issues relating to the
       development visibility and its visual effects.
                                                                                    The 3d model was compared to both hard and soft copies of plans
       The following methodology description explains the steps                     and elevations to ensure consistent accuracy.
       Buildmedia employed in the creation of the visual simulations.
                                                                              2.3   Creating the Panoramic Photo
                                                                                    All photographs captured on site by Buildmedia were post-
2.0    Process Methodology Retirement Resort Visual Simulations                     processed to remove any elements of lens distortion and stitched
       The Visual Simulations created by Buildmedia were prepared using             together using specialized photogrammetric panoramic software.
       best surveying and visualisation practices and involve a series of
       processes and steps to ensure consistency and accuracy in the                Each photograph was then tied into its adjacent photograph using
       development of each image. The following steps briefly identify the          relative tie points to create an accurate panorama. A minimum of
       method in which the retirement resort was visualised                         30 control points were used to ensure a high level of accuracy.

2.1    On Ground Photography                                                        Panorama photographs are generated with 90 degree field of view
       A series of photographs for viewpoints 01 and 02 were captured on            using true rectilinear projection to accurately simulate a camera
       the 21st May 2019 and viewpoints 03 to 06 were captured on 18th              lens with an equal field of view of 90 degrees.
       May 2019 using a professional Sony ILCE-7RM2 digital camera with
       a 35 mm lens (1.0 multiplier) using a tri-pod. Photographs were
Proposed Wynyard Crossing Bridge - Visualisation Simulation Methodology
June 2019        © Copyright Buildmedia Limited

2.4    Virtual Camera Placement
       Virtual cameras are placed into the 3D scene matched to the GPS          2.8   Final Image Enhancements
       coordinates of the field camera position ascertained on site by                2D image editing software was used to correctly edit what would
       Precision Aerial Surveys.                                                      normally appear in the foreground of the image. Foreground
                                                                                      features were transcribed out of the original photograph and
       The field of view and aspect ratio of the virtual camera was then              placed into their exact position in front of the 3D object.
       adjusted to match the rectilinear image field of view of 90 degrees.
                                                                                      Buildmedia carefully compared onsite photography, landscape
2.5    Generation of Tie Points for each Panorama                                     plans and aerial photography when photo-editing the photography.
       Tie points are specific, identifiable surveyed objects visible in both
       the 3D model and the panorama photograph. They are used to                     Final post effects were added to match the photography and mimic
       match the virtual camera target to the rectilinear image.                      other environmental factors such as distance haze were applied as
                                                                                      post effects to improve the quality of the final result.
       Tie point were captured by Precision Aerial Surveys. The 3D tie
       point position indicators were added into the 3D scene at the            2.9   Presentation sheet layouts
       actual positions determined by Precision Aerial Surveys. The virtual
                                                                                      The final images were assembled using Adobe InDesign into PDF
       camera was then altered in direction so that the tie points matched
                                                                                      sheets that included titles, tie-point information, and necessary
       the rectilinear image. Multiple tie points were used across the
                                                                                      camera information.
       width of the view to ensure consistent accuracy. They were then
       rendered and overlaid onto the existing panorama.
                                                                                3.0   Conclusion
2.6    Tide Heights                                                                   Buildmedia use the best surveying and visualisation practices and
       Calculating times and tide heights between high and low waters                 involve a series of processes and steps to ensure consistency and
       was calculated using the method set out on the LINZ website. All               accuracy in the development of each visual simulation. These visual
       heights are then corrected to match the vertical datum of the                  simulations accurately represent the proportions and location of
       survey and 3d model.                                                           the proposed development and views from the selected locations
                                                                                      as prescribed by the design information available.
2.7    Rendering
       In the 3D model, the sun and environment was simulated at the
       precise day and time each original photograph was captured. This
       ensures the lighting of the development as well as the shadows
       cast, are accurate representations of how the project would appear
       post construction in the field photography.
Proposed Wynyard Crossing Bridge
         Visual Simulations
         Prepared: 31st May 2019
Proposed Wynyard Crossing Bridge - Visual Simulations   Prepared: 31st May 2019          CAMERA LOCATIONS              MAP
                                                                                  VP01    1756997.088   5921251.585   2.399

                                                                                  VP02 1756849.824      5921274.623   2.939

                                                                                  VP03 1756819.136      5921323.883   2.950

                                                                                  VP04 1756791.929      5921047.004   2.158

                                                                                  VP05 1756747.649      5920862.541   2.889

                                                                                  VP06 1756966.386      5921101.088   2.494

Visual Simulation Locations - Wynyard Bridge
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