I'm trying to build a generic movie-to-texture patch to put inside a poly.

I want to control color and basic geometry (zoom and offset) at the texture level before sending it to a mesh (via an effects chain or directly). 

I guess there is a more efficient way than using a slabs chain and that the the td.rota shader is not indispensable, but I'm a little lost. Any suggestion is welcome. 

In particular, I wonder if the srcdimstart/end and dstdimstart/end functions of the jit.gl.texture object are perfomed by the GPU and if it it could be a good way to scale/position a picture (?)

I'm trying to build a generic movie-to-texture patch to put inside a poly.
I want to control color and basic geometry (zoom and offset) at the texture level before sending it to a mesh (via an effects chain or directly). 
the basic patch is below.
I guess there is a more efficient way than using a slabs chain and that the the td.rota shader is not indispensable, but I'm a little lost. Any suggestion is welcome. 
In particular, I wonder if the srcdimstart/end and dstdimstart/end functions of the jit.gl.texture object are perfomed by the GPU and if it it could be a good way to scale/position a picture (?) 

optimizing-texture-handling

I'm wondering why you would want to do all this before the mesh? You can edit the texture map and color on the gpu too. You could also write a shader to do it. Tryout patch below:

You can search the famous magic texcoord patch by Wes somewhere on C74 forum.

about the "need more maths..."
You can search the famous magic texcoord patch by Wes somewhere on C74 forum.


actually, I'd like to apply multi-texture to the mesh (see more complete patch below) and to be able to scale and position each texture individually, that's why I suppose tex_map is not the key.

But I want these operations to be performed by the GPU, so probably the best solution is to merge uyvy2rgba and rota shaders (?)

actually, I'd like to apply multi-texture to the mesh (see more complete patch below) and to be able to scale and position each texture individually, that's why I suppose tex_map is not the key.
But I want these operations to be performed by the GPU, so probably the best solution is to merge uyvy2rgba and rota shaders (?)

optimizing texture handling