Rendering method and device of 3D skeletal animation

Abstract

The invention provides a rendering method and device of a 3D skeletal animation. The rendering method comprises the following steps that an skeletal animation object is established and global skeletal matrix data which are generated in advance are loaded; the animation object is loaded, animation playing is conducted, skeletal matrix data needed by a current frame of the animation are obtained from the global skeletal matrix data and the skeletal matrix data are transmitted into a GPU; skeletal animation shader codes, an image object and model vertex data are obtained from the GPU, calculation is conducted according to the obtained skeletal matrix data, the obtained skeletal animation shader codes, the obtained image object and the obtained model vertex data, and a skeletal animation picture is rendered. The rendering method and device avoid the problem that in practical environment, CPU resource consumption is too high due to the fact the global matrix data are calculated through a CPU, effectively reduce the CPU occupancy rate and especially have obvious performance advantages for skeletal animation models which are complex and large in calculation amount.

Description

technical field [0001] The invention relates to the technical field of computer graphics, in particular to a rendering method of 3D skeleton animation and a rendering device of 3D skeleton animation. Background technique [0002] There are currently two methods of model animation: vertex animation and skeletal animation. In skeletal animation, the model has a skeletal structure composed of interconnected "bones", and the animation is generated for the model by changing the orientation and position of the bones. [0003] Skeletal animation requires more processor performance than vertex animation, but it also has the advantage that skeletal animation can be created more easily and faster. Different skeletal animations can be combined, for example a model can turn its head, shoot and walk at the same time. Some engines can manipulate individual bones in real time so that they can interact with the environment more accurately - the model can lean over and look or shoot in a c...

AI Technical Summary

Problems solved by technology

However, using the above method to realize 3D skeletal animation, since each frame of animation needs to consume CPU computing resources, when the number of 3D skeletal animation models is large, the CPU usage rate will be too high; especially for some bones that consume CPU to calculate skeletal pose data For the model, the consumption of CPU resources is more serious, and it may even lead to the phenomenon of reference lag

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