c@klingt.org

i'm trying to build a patch which basically emualtes a karaoke-like 

coloring of a text in given time segments. my approach is to display 

the text in several jit.gl.text3d objects (generated out of a xml 

file in a javascript object) and doing the coloring via a moving 

texture on a plane (jit.gl.gridshape, blend_mode 2 4), lying on top 

of the scene. my problem is that this seems only to work when the 

jit.gl.gridshape object is instantiated _after_ the text objects, 

which is a problem as i generate text objects anew all the time.

any thoughts on this? find the isolated problem in the patch below.

also, i'm not shure if my general approach is a very clever one, i 

still have problems with positioning the various text objects in 

relation to each other (as they can't output their size). until now i 

use a workaround where every new text object gets rendered in an 

offscreen matrix once and measured with jit.findbounds... dirty and 

i'm trying to build a patch which basically emualtes a karaoke-like  
coloring of a text in given time segments. my approach is to display  
the text in several jit.gl.text3d objects (generated out of a xml  
file in a javascript object) and doing the coloring via a moving  
texture on a plane (jit.gl.gridshape, blend_mode 2 4), lying on top  
of the scene. my problem is that this seems only to work when the  
jit.gl.gridshape object is instantiated _after_ the text objects,  
which is a problem as i generate text objects anew all the time.

also, i'm not shure if my general approach is a very clever one, i  
still have problems with positioning the various text objects in  
relation to each other (as they can't output their size). until now i  
use a workaround where every new text object gets rendered in an  
offscreen matrix once and measured with jit.findbounds... dirty and  
works only approximately. more thoughts?

any help/comments/ideas appreciated!
thanks, chris

texture-and-blending

try with non-automatic rendering order, you can render all text objects 

first, and then render gridshape over them:

try with non-automatic rendering order, you can render all text objects 
first, and then render gridshape over them:

texture and blending