cowboy71 Posted August 8, 2012 Share Posted August 8, 2012 Hey guys, I just dove into Houdini a few month ago, and was wondering about a camera aim which could follow an animated object. Maya has a camera aim which I parented usually to the object I wanted to follow, just wondering how this is achieved in Houdini. Thanks Quote Link to comment Share on other sites More sharing options...
anim Posted August 8, 2012 Share Posted August 8, 2012 each object in houdini has Look At parameter where you can drop any object you want it to aim at Quote Link to comment Share on other sites More sharing options...
cowboy71 Posted August 8, 2012 Author Share Posted August 8, 2012 each object in houdini has Look At parameter where you can drop any object you want it to aim at I did see that, but does there need to be an expression on it for it to follow the animated object? I have selected the sphere that is moving around and the camera stays static. Quote Link to comment Share on other sites More sharing options...
anim Posted August 8, 2012 Share Posted August 8, 2012 no expression, it expects any Object node, then your camera should rotate towards the global position of that object is your sphere animated at object level or in SOPs? Quote Link to comment Share on other sites More sharing options...
cowboy71 Posted August 8, 2012 Author Share Posted August 8, 2012 no expression, it expects any Object node, then your camera should rotate towards the global position of that object is your sphere animated at object level or in SOPs? it's within SOPs. I have a null on the end which I call into the camera, but stays static. Quote Link to comment Share on other sites More sharing options...
anim Posted August 8, 2012 Share Posted August 8, 2012 it should be at object level, since in sops all is just geometry to extract position from moving geometry to object level, create Rivet Object as a rivet geometry use your null from within sphere object as a point group use either point group from that geometry or specify directly points which you would like to represent position of the rivet (it will be placed to their average position) then use this rivet as cameras look at object or if you can animate the sphere at object level and you save yourself some trouble Quote Link to comment Share on other sites More sharing options...
cowboy71 Posted August 8, 2012 Author Share Posted August 8, 2012 it should be at object level, since in sops all is just geometry to extract position from moving geometry to object level, create Rivet Object as a rivet geometry use your null from within sphere object as a point group use either point group from that geometry or specify directly points which you would like to represent position of the rivet (it will be placed to their average position) then use this rivet as cameras look at object or if you can animate the sphere at object level and you save yourself some trouble Got it. Thank you. Quote Link to comment Share on other sites More sharing options...
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