A Fast Rendering Method of 3D Model
A 3D model and fast technology, applied in the field of rapid rendering of 3D models, can solve the problems of inapplicable volume, power consumption embedded application field, power consumption, code amount and cost increase, so as to achieve real-time rendering and reduce the amount of calculation. , the effect of easy access
Active Publication Date: 2019-09-24
西安汇明光电技术有限公司
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[0003] At present, the drawing of 3D models is generally completed by graphics display chips and dedicated graphics libraries, but this means the increase of power consumption, code volume and cost, which is not suitable for embedded applications that have strict requirements on volume and power consumption
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[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0041] An embodiment of the present invention provides a fast drawing method of a three-dimensional model, such as figure 1 As shown, the method includes:
[0042] Step 1, obtain the data information of the 3D model to be drawn, the data information of the 3D model is described by N triangular face data; each triangular face data contains at least three vertex coordinates that make up the triangular face; N is a positive integer ;
[0043] Step 2, set the in...
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The invention belongs to the field of computer graphics, and discloses a quick three-dimensional model drawing method. The method comprises a step of in drawing a three-dimensional model, taking comprehensive consideration of line drawing and triangle filling in a three-dimensional model drawing process, partitioning line drawing into three modes according to relative positions of three top points of a triangle on a two-dimensional plane, thereby finishing drawing of the edges of the triangle and furthermore acquiring coordinates of all points on a left boundary and a right boundary of the triangle from top to bottom so that subsequent triangle filling is changed to linear connection which is finished according to the coordinates of the left boundary and the right boundary, thereby greatly reducing calculation amount required in triangle filling. Because a majority of calculation amount in drawing the three-dimensional model is occupied by triangle filling and the quick three-dimensional model drawing method greatly reduces calculation amount in triangle filling, real-time drawing of the three-dimensional model is realized.
Description
technical field [0001] The invention belongs to the technical field of computer graphics, and in particular relates to a fast drawing method of a three-dimensional model, which can be used for scene simulation, target simulation and the like in a low power consumption environment. Background technique [0002] A 3D model is a polygonal representation of an object, usually displayed on a computer or other video device. Objects shown may be real-world entities or fictional objects. Anything that exists in physical nature can be represented by a three-dimensional model. 3D models have been used in various fields. They are used in the medical industry to make precise models of organs; the film industry uses them for moving characters, objects, and realistic films; the video game industry uses them as resources in computers and video games; and the scientific field uses them as precise models of chemical compounds ; the engineering community uses them to design new devices, ve...
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IPC IPC(8): G06T17/30
Inventor 赵挺竹
Owner 西安汇明光电技术有限公司