Preprocessing method for offline rendering

Abstract

A preprocessing method for offline rendering, including the following steps: 1) setting parameters to create a Beast environment; 2) classifying the light required for rendering, and providing each type of light information to Beast; 3) dividing the scene and generating light maps Data; 4) Make the vertex data of the model attached to the light map uv, open up a sub-thread to enable Beast to start the light map exhibition uv mode, obtain the result data, perform vertex merging operations, and save the model data; 5) Combine the lighting information, model and terrain Information, and the material information attached to them are passed to Beast; 6) From the Beast data feedback module, get the light map data and save it to disk; 7) Batch merge small maps, and record the offset and scale values. The offline rendering preprocessing method of the present invention avoids the problem of excessive memory, and makes the client do not need the coloring process of real-time rendering, and only needs to sample the light map to achieve a very real effect, which enhances the realism of the Beast client .

Description

technical field [0001] The invention relates to the technical field of offline rendering, in particular to a preprocessing method for offline rendering. Background technique [0002] The purpose of 3D client-side rendering is to show realistic effects as much as possible. However, because the environment to be rendered changes every frame, information such as shadows, lighting, and ambient occlusion needs to be calculated every frame, and this process requires a large amount of CPU or GPU. Also, some of the more realistic indirect lighting can't be taken into account due to efficiency issues. Therefore, offline rendering technology came into being. It uses pre-generated data. When the client renders the specified surface and model, it does not need to render the shading process in real time, but dynamically loads those pre-processed data and displays them. Contents of the invention [0003] In order to solve the deficiencies in the prior art, the purpose of the present ...

AI Technical Summary

Problems solved by technology

However, because the environment to be rendered changes every frame, information such as shadows, lighting, and ambient light occlusion needs to be calculated every frame, and this process requires a lot of CPU or GPU

Also, some of the more realistic indirect lighting can't be taken into account due to efficiency issues

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