I am trying to simulate a camera calibration procedure using Blender and for this reason I am trying to generate images of a checkerboard pattern to use in the calibration algorithm. After rendering I noticed two problems (as you can see in the attached image):
- The straight lines are "pixelated"
- The angles of the squares in the pattern are not touching
I am rendering with cycles at 1600x1200 resolution, the lens used is a perspective lens. The checkerboard is generated using the materials checkerboard option and roughness is set to 0.