Right now, matrices are simply uniforms in shaders, which means that when updating those matrices, values must be passed for every shaders. A way to improve the performance is to set uniformblocks and bind them when necessary.
However, since the frequency of updating those matrices are different, it's better to put them in different uniformblocks. To be more specific, matrices can be separated into three types:
Projection Matrix need to be updated when window size changes
Camera( View) Matrix need to be updated when camera moves
Model Matrix need to be updated for every object in scene
Thus, we can simply put Project Matrix and Camera Matrix in a uniformblock and update them in every frame. Model Matrix put in another frame and update it for every object.
v3c70r
commented
9 years ago
Right now, matrices are simply uniforms in shaders, which means that when updating those matrices, values must be passed for every shaders. A way to improve the performance is to set uniformblocks and bind them when necessary.
However, since the frequency of updating those matrices are different, it's better to put them in different uniformblocks. To be more specific, matrices can be separated into three types:
Thus, we can simply put
Project MatrixandCamera Matrixin a uniformblock and update them in every frame.Model Matrixput in another frame and update it for every object.