> For the complete documentation index, see [llms.txt](https://manual.xlights.org/xlights/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://manual.xlights.org/xlights/chapters/chapter-four-sequencer/rendering.md).
# Rendering
### Render Buffer
The Render Buffer is used to generated Effects data onto. For each Model/Group/Submodel, xLights creates a Rectangular Grid to render effects on to. The size of the buffer depends on the model type and settings. 16 strand by 40 pixels Mega Tree will have a 16x40 render buffer.
The Effect is overlaid onto the render buffer to calculate the color data of the individual pixels or lights.
Matix Render Buffer
Custom Model Render Buffer
### Group Render Buffer
Default Minimal Grid will Draws a 2D grip over the models in the group and attempt to put each pixel in its own box, Up to the Max Grid Size, Normally 400x400.
### Model Rendering Low Level Model
