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Direct canvas: Optimized WebGL rendering model

WebGL has been introduced as one of the powerful web features for developing 3D content. However, there are still performance issues when compared to the native GL applications. The traditional WebGL rendering requires unnecessary buffers and copies even though when WebGL is the only content in the current web page. This paper presents an optimized rendering model when WebGL is used as dominant content like 3D games. And we will demonstrate its effectiveness with performance data measured on the embedded devices.