The early alternatives that the EIS looked at included two alignments that re-routed I-70 with a long out of direction loop to the north. A visual simulation was required to show the proposed structure as it skirted an historic northern neighborhood on the more western of the two alignments.
POITRA modelers created an accurate 3D model of the viaduct which was camera matched with the base photograph. Artists cound then determine what areas of the background would need to be restored. POITRA relied upon its principal's previous career experience in bridge design to ensure accuracy in the model's construction.
The greater the area of original background photograph that needs to be replaced the greater the danger of loosing believability in the simulation. This image is an example of that challenge. ”
Matt Poitra, POITRA Visual
Visual Simulations Project Manager
Several existing buildings were to be removed from the path of the new viaduct. In the simulation view these removals would exposed several of the remaining buildings beyond. POITRA artists carefully reproduced these newly exposed buildings as they removed the appropriate foreground buildings. These large areas of restored background are visible in the photosimulation all along the horizon below the viaduct. This work was accomplished using traditional digital painting techniques. The 3D model was then lighted to match the photograph, rendered and combined with it to create the final simulation.
Special effort was required to bring the bare foreground trees to the front of the viaduct and to depict Brighton Boulevard which parallels I-70 underneath the viaduct at this location.
The finished simulations were used by CDOT in the I-70 East EIS public meetings, newsletters and as exhibits in the Draft EIS Document.
Take a closer look! The highly developed skills of the Artists at POITRA Visual make your concept a reality. (click to magnify)
Take Another Look! POITRA created an animated 3d model of the I-70 East SDEIS Preliminarily Identified Preferred Alternative at a later stage in the project. (click to magnify)