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Index › Programming Questions & Help › Programs › rotating sprites in 3d

Cedric YaBB Moderator Offline Posts: 1838	rotating sprites in 3d Jun 15th, 2009, 10:07pm   Is there an easy way to rotate sprites/Images to always face the camera when used in 3d space? like in the good old doom for example...  ive got a moving sprite in a rotating space and i always want it to be visible.
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jeffg Senior Member Offline Posts: 472

Re: rotating sprites in 3d Reply #1 - Jun 16th, 2009, 6:03am   Couple ways to do this... search for billboarding.   It will likely look something like Code: pushMatrix(); translate(x, y, z); rotateX(rotations[0]); rotateY(rotations[1]); rotateZ(rotations[2]); image(picture, width/2, height/2); popMatrix(); The other way is more complex (OpenGL) but good if you have a lot of images and need performance.  See http://processing.org/discourse/yabb2/num_1224365195.html Shaders can do this as well.

« Last Edit: Jun 16th, 2009, 10:29am by jeffg »

Cedric YaBB Moderator Offline Posts: 1838	Re: rotating sprites in 3d Reply #2 - Jun 16th, 2009, 9:06am   thx. im getting an error using your link.
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koogy God Member Offline Posts: 788	Re: rotating sprites in 3d Reply #3 - Jun 16th, 2009, 9:50am   (that url has an extraneous %A0 at the end, just remove it)