Texturing based on camera direction

# 1 08-04-2004 , 09:54 PM

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Join Date: Mar 2003

Location: San Antonio, TX

Posts: 346

Does anyone know how to write a script that would planar projection map all the faces of a model visible to the camera along the direction that the camera is facing (with all the default planar projection attrs)?

I'm planning to use this in conjunction with "use frame extension" and a sketched-looking outline (tomcat) in order to acheive a hand-drawn effect. This script (if it's possible) would create painterly shading that has different texture and strokes each frame because of the 'use frame extension' images, and scales with the closeness of the camera. (if it just did a planar projection on all the faces instead of only those visible to the camera, the strokes in the image would seem to get bigger as the camera moved closer).

Thanks!

Grinning Idiot Films

Our Pal the Atom

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# 2 12-04-2004 , 01:33 PM

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Join Date: Oct 2002

Location: London, UK

Posts: 2,800

ok this might help.

Create your camera and your model I used a tours just as a test. THen apply a planar projection to it.

Now in the channel box right click the projection centre X box and create an expression. set it to:

polyPlanarProj1.projectionCenterX = camera1.translateX;
polyPlanarProj1.projectionCenterY = camera1.translateY;
polyPlanarProj1.projectionCenterZ = camera1.translateZ;

replace the camera name and the projection names with yours. Now apply a texture to it and move the camera, you should see the texture moving based on where the camera is.

Hope that is some help

Alan

Technical Director - Framestore

Currently working on: Your Highness

IMDB

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# 3 12-04-2004 , 07:49 PM

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Location: San Antonio, TX

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that's exactly what I needed! thanks so much.

Grinning Idiot Films

Our Pal the Atom

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# 4 12-04-2004 , 07:53 PM

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Join Date: May 2002

Location: Niagara Falls, Canada

Posts: 5,310

Danny has a script on his website that i use all time its great...

I am enough of an artist to draw freely upon my imagination, knowledge is limited, imagination encircles the world. (Albert Einstein)

https://www.artstation.com/kurtb

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# 5 12-04-2004 , 09:07 PM

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Join Date: Mar 2003

Location: San Antonio, TX

Posts: 346

I'm having a bit of a problem- in the channel box there aren't any options for the projection. I must be missing something...

Thanks

EDIT: It worked when I selected all the faces of the model and used the planar projection command on the polys shelf. hmm. before I was selecting edit polygons--->texture--->planar projection. Hrm.

Grinning Idiot Films

Our Pal the Atom

Last edited by carrot juice; 12-04-2004 at 09:27 PM.

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