Graphics Environment for Multimedia

{{Short description|Graphics libraries}}

{{distinguish|Graphics Environment Manager}}

{{Infobox software

| name =

| title =

| logo =

| logo caption =

| logo_size =

| logo_alt =

| screenshot =

| caption =

| screenshot_size =

| screenshot_alt =

| collapsible =

| author = Mark Danks

| developer = Günter Geiger, Institute of Electronic Music and Acoustics

| released =

| discontinued =

| latest release version = 0.94

| latest release date = {{Start date and age|2019|3|15}}

| latest preview version =

| latest preview date =

| status =

| programming language =

| operating system = Linux, OS X, Win32 and IRIX

| platform =

| size =

| language =

| language count =

| language footnote =

| genre =

| license = GNU General Public License

| website = {{URL|https://gem.iem.at/}}

}}

Graphics Environment for Multimedia (GEM) is a set of externals (libraries) that provide OpenGL graphics functionality to Pure Data, a graphical programming language for real-time audio processing. It is free under the GNU General Public License (GPL).

Originally written by Mark Danks{{cite web |url=http://www.danks.org/mark |title=Mark Danks}} of Sony Computer Entertainment, it is now maintained by Johannes Zmölnig{{cite web |url=http://iem.kug.ac.at/en/people.html?tx_kugpeople_pi1%5Bperson_nr%5D=50512 |title=People}} of the Institute of Electronic Music and Acoustics. It was once (but is no longer) partly supported by a grant from the Intel Research Council for The Global Visual Music project of Vibeke Sorensen, Miller Puckette and Rand Steiger.

The externals provide support for many objects, such as polygon graphics, lighting, texture mapping, image processing, and camera motion.