v1.2.0

1. add camera input source
2. add GL error check for all GL API call

v1.1.0

1.add more effect renderers.
2.support video input.
3.support image/video offscreen rendering.
4.fix bugs, etc..

v1.0.6

add gaussian blur renderer && fix bugs

v1.0.5

simplify the usage of APIs and fix bugs

v1.0.4

modify the API of RenderChain/RenderGraph && add RenderPipeline to manager the abstract input/output of RenderChain/RenderGraph

v1.0.3

support more parameters, add OES convert renderer and fix bug

v1.0.2

add RenderChain, ScaleRenderer, CropRenderer, etc.

v1.0.1

GL program release

v1.0.0

first release