TUD Organische ChemieImmelGraphicsPovray 3.5localView or Print this frame onlyView or Print (this frame only)

Example Graphics

(low quality jpg-image only)

Example file (local.pov):

// Persistence Of Vision Ray Tracer POV-Ray 3.5 sample Scene
// by Chris Young
// LOCAL.POV demonstrates basic use of a temporary local identifier
// using the #local directive. Also demonstrates new #undef directive.
// See debug messages after rendering.

#include "colors.inc"

light_source { <100,1000,-1000>, White}

background{rgb 0.4}

camera { location -9*z direction 2*z look_at <0,0,0>}

#declare Thing = sphere{0,1 pigment{Red}}

/* Thing on the left is global */
object{Thing translate -2.5*x}

// This include file declares a local version of "Thing"
// and leaves it at the origin.
#include "local.inc"

/* Now put "Thing" on the right. You get the original version.*/
object{Thing translate 2.5*x}

// The file "local.inc" also declares a local
// identifier called "Local_Item" which disapears on exit.

#ifdef (Local_Item)
#debug "Local_Item found\n"
#debug "Local_Item not found\n"

// Now let's get rid of the global Thing

#debug "Doing #undef Thing\n"

#undef Thing

#ifdef (Thing)
#debug "Thing found\n"
#debug "Thing not found\n"

© Copyright PD Dr. S. Immel