Real-time display of virtual humans: levels of details and impostors

Aubel, Amaury; Boulic, Ronan; Thalmann, Daniel

doi:10.1109/76.825720

Cited by 68 publications

(42 citation statements)

References 23 publications

(27 reference statements)

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“…This method has the downside of requiring a huge amount of memory, as it requires a render of each character, from different perspectives and multiple frames for each of them. Aubel et al [5] solve this problem by using dynamically generated impostors. In this way, no storage is used for impostors that are not active in the scene.…”

Section: Related Workmentioning

confidence: 99%

Repurpose 2D Character Animations for a VR Environment Using BDH Shape Interpolation

Barbieri

Cawthorne

Xiao

et al. 2017

Next Generation Computer Animation Techniques

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Fig. 1. Two examples of 2D characters placed in a 3D environment using our framework.Abstract. Virtual Reality technology has spread rapidly in recent years. However, its growth risks ending soon due to the absence of quality content, except for few exceptions. We present an original framework that allows artists to use 2D characters and animations in a 3D Virtual Reality environment, in order to give an easier access to the production of content for the platform. In traditional platforms, 2D animation represents a more economic and immediate alternative to 3D. The challenge in adapting 2D characters to a 3D environment is to interpret the missing depth information. A 2D character is actually flat, so there is not any depth information, and every body part is at the same level of the others. We exploit mesh interpolation, billboarding and parallax scrolling to simulate the depth between each body segment of the character. We have developed a prototype of the system, and extensive tests with a 2D animation production show the effectiveness of our framework.

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Section: Related Workmentioning

confidence: 99%

Repurpose 2D Character Animations for a VR Environment Using BDH Shape Interpolation

Barbieri

Cawthorne

Xiao

et al. 2017

Next Generation Computer Animation Techniques

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show abstract

“…Many works in the area of crowd rendering have adopted the image-based technique based on impostors [1,2]. Dobbyn et al [3] proposed a hybrid technique for large crowd rendering, where polygon meshes are used for characters in close proximity and pre-generated impostors are used for distant characters.…”

Section: Related Workmentioning

confidence: 99%

Fast Rendering of Large Crowds Using GPU

Park

Han

2008

Lecture Notes in Computer Science

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Abstract. This paper proposes a fast rendering algorithm for real-time animation of large crowds, which is essential for video games with a large number of non-player characters. The proposed approach leaves the minimal work of rendering to CPU, and makes GPU take all the major work, including LOD assignment and view frustum culling, which have been the typical tasks of CPU. By offloading the rendering overhead from CPU, the approach enables the CPU to perform intensive computations for crowd simulation. The experiments show that tens of thousands of characters can be skin-animated in real time.

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“…Crowd Visualization is a specific problem with various solutions [1], [2], [3]. Briefly, these solutions rely on two major concepts.…”

Section: Related Workmentioning

confidence: 99%

Populate Your Game Scene

Pettré

2008

Motion in Games

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Abstract. We describe a method for populating large virtual environments with crowds of virtual pedestrians. Pedestrians are distributed in the environment by giving them goal destinations to reach. In order to facilitate this population setup, we assign identical destinations to batch of pedestrians, resulting in navigation flows. In order to preserve individuality of pedestrians, navigation is planned with variety and each pedestrians follows its own unique trajectory. This specific navigation planning technique answers user's queries very rapidly. As a result, impact of the insertion of a new navigation flow in the environment is directly observable, and interactive design is achieved. Once the problem of design solved, we address the problem of simulating the virtual population navigation. A level-of-details strategy is used to achieve on-line real-time simulation of large crowds, formed by up to tens of thousands of pedestrians. We illustrate our method on the typical example of a virtual city, and discuss our approach.

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Real-time display of virtual humans: levels of details and impostors

Cited by 68 publications

References 23 publications

Repurpose 2D Character Animations for a VR Environment Using BDH Shape Interpolation

Repurpose 2D Character Animations for a VR Environment Using BDH Shape Interpolation

Fast Rendering of Large Crowds Using GPU

Populate Your Game Scene

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