Nadradený pojem:
Podradené pojmy:
Susedné pojmy:
Non-linear values in depth buffer
Description
The
value stored by the hardware in the depth buffer is a non-linear mapping of the
actual depth from the camera based on the near and far clipping planes.
This is done so that objects closer to the camera have more depth resolution.
The mapping is of the form:
z_buffer_value ~ a - b / z
b = zFar * zNear / ( zFar – zNear )
z = distance from camera to object
z-resolution inversely proportional to distance
Tip: set zNear to a value > 0
This is done so that objects closer to the camera have more depth resolution.
The mapping is of the form:
z_buffer_value ~ a - b / z
where
a = zFar / ( zFar - zNear )b = zFar * zNear / ( zFar – zNear )
z = distance from camera to object
z-resolution inversely proportional to distance
Tip: set zNear to a value > 0
Importance
High