Editing Volume (section)

== Ray Tracing ==

'''There is no actual ray tracing support'''. The volume rendering is implemented exclusively with OpenGL shaders. The recommended way to render a high resolution image is to use the [[draw]] command. Example:

 # render high resolution image on screen
 draw 4000, 3000, antialias=2
 png highres.png

Ray trace specific features like shadows or outlines ([[ray_trace_mode]]) are not available with this approach. If such features are needed, the [[ray_volume]] setting activates a hybrid solution, which blends the OpenGL rendered volume with the ray traced non-volume objects. Image sizes other than the current window size are not possible.

 # compose on-screen volume with ray traced image
 set ray_volume
 ray
 png composed.png

Neither of these two solutions work with [[Launching_PyMOL#Running_PyMOL_in_batch_mode|headless (batch) mode]].