Distorted Perspective for the Forward Camera Dolly
Itsuki Orito, Xi Yang, Kazutaka Nakashima, Tsukasa Fukusato, and Takeo Igarashi
SIGGRAPH ASIA 2020 Technical Communications
Abstract
We present a method to add distorted perspective effects for scenes with a forward camera dolly (the camera moves in the depth direction). Our target scene is a first-person view of the main character traversing a long path. A distorted perspective has been applied to such scenes in hand-drawn animation films to create more dynamic and dramatic motions. Unfortunately, it is difficult to create a perspective for the camera direction in 3D animation. Therefore, we created an interactive tool to design cartoon-like perspectives for 3D computer-generated animations. Users can control the affine transformation, including translation, rotation, and scaling, in the depth direction of the camera coordinate system on a 2D screen. We implemented the proposed deformer on a vertex shader to ensure the real-time performance of our system.
Acknowledgement
This work was supported by JSPS KAKENHI grant No. JP19K20316, Japan.
Publication
Itsuki Orito, Xi Yang, Kazutaka Nakashima, Tsukasa Fukusato, and Takeo Igarashi. "Distorted Perspective for the Forward Camera Dolly." ACM SIGGRAPH ASIA 2020 Technical Communications, pp.1:1--1:4, Online, 2020.12.04-13.