Abstract: A graphic rendering system and a projection method thereof are provided. The graphic rendering system comprises a processing unit and a storage unit. The storage unit stores a piece of information. The information defines a virtual area in a camera space, wherein the virtual area has three vertices. The processing unit calculates two intersection vertices between the virtual area and near clipping plane of a view volume of the camera space. The processing unit transforms the three vertices and the two intersection vertices to a screen space and derives three projection vertices and two projection intersection vertices. The processing unit decides a valid area, chooses a test vertex from the valid area, and decides whether the signs of the three projection edge functions defined by the three projection vertices should be changed. Then, the processing unit decides pixels to be rendered according to the valid area, projection edge functions, and a predefined window clipping region.

Abstract: A graphic rendering system and a projection method thereof are provided. The graphic rendering system comprises a processing unit and a storage unit. The storage unit stores a piece of information. The information defines a virtual area in a camera space, wherein the virtual area has three vertices. The processing unit calculates two intersection vertices between the virtual area and near clipping plane of a view volume of the camera space. The processing unit transforms the three vertices and the two intersection vertices to a screen space and derives three projection vertices and two projection intersection vertices. The processing unit decides a valid area, chooses a test vertex from the valid area, and decides whether the signs of the three projection edge functions defined by the three projection vertices should be changed. Then, the processing unit decides pixels to be rendered according to the valid area, projection edge functions, and a predefined window clipping region.

Abstract: The invention provides a vector graphics system. In one embodiment, the vector graphics system comprises a path rendering manager module and a rendering module. The path rendering manager module receives path data, calculates a changing rate of the path data, and selects a filling method from a tessellation filling method and a Stencil filling method according to the changing rate. The rendering module fills the path data according to the tessellation filling method when the filling method is the tessellation filling method, and fills the path data according to the Stencil filling method when the filling method is the Stencil filling method.