vade

Ive been working with some shaders for 3D, and have noticed that when 

importing a OBJ file with more than one texture in the material file, 

that Jitter defaults to only displaying the first texture, not all.

For example, if my material file is as follows:

# WaveFront *.mtl file (generated by Cheetah3D)

[texture body_df.jpg body_df_normalmap.jpg]

to force the model to use both textures. This is a major pain if you 

are developing shaders that need to use gl_TextureMatrix[1] and 

Ive put up an example help file for my normal map shader that I am 

working on, along with the model, diffuse color map and normal map 

and shader code to illustrate the point. The shader code is not 

necessary, but it illustrates some other issues with jit.gl.model, 

[texture body_df.jpg body_df] (say you want tex0 and tex1 to be the 

[texture body_df.jpg body_df_normalmap.jpg] (to make tex0 the first 

texture and tex1 a different texture). The last message does nothing. 

You can see this pretty clearly with the shader enabled as the normal 

map should totally change the lighting from one message to the other. 

But, alas, you have to close and re-open the patch to 'revert'.

The zip archive of the shader code, model and patch are located at:

http://abstrakt.vade.info/ILOVETHEMAXLIST/jit.gl.model_gripe.zip

May I also suggest that the jit.gl.textures being named by 

jit.gl.model when reading the material file use the material name, 

and not the name of the texture on disk? This makes it even more 

Ive been working with some shaders for 3D, and have noticed that when  
importing a OBJ file with more than one texture in the material file,  
that Jitter defaults to only displaying the first texture, not all.

------
# WaveFront *.mtl file (generated by Cheetah3D)

newmtl default
Ns 64
Kd 0.7 0.7 0.7
Ks 1.0 1.0 1.0
Ka 0.1 0.1 0.1

newmtl textureuv
Ns 64.000000
Tr 1.000000
Kd 0.750000 0.750000 0.750000
Ks 1.000000 1.000000 1.000000
Ka 0.1 0.1 0.1
map_Kd body_df.jpg

newmtl normalmap
Ns 64.000000
Tr 1.000000
Kd 0.750000 0.750000 0.750000
Ks 1.000000 1.000000 1.000000
Ka 0.1 0.1 0.1
map_Kd body_df_normalmap.jpg

I have to explicitly send the message
[texture body_df.jpg body_df_normalmap.jpg]

to force the model to use both textures. This is a major pain if you  
are developing shaders that need to use gl_TextureMatrix[1] and  
gl_TextureCoord[1] (or 2 or 3).

Ive put up an example help file for my normal map shader that I am  
working on, along with the model, diffuse color map and normal map  
and shader code to illustrate the point. The shader code is not  
necessary, but it illustrates some other issues with jit.gl.model,  
like for example when sending

[texture body_df.jpg body_df]  (say you want tex0 and tex1 to be the  
same)

[texture body_df.jpg body_df_normalmap.jpg] (to make tex0 the first  
texture and tex1 a different texture). The last message does nothing.  
You can see this pretty clearly with the shader enabled as the normal  
map should totally change the lighting from one message to the other.  
But, alas, you have to close and re-open the patch to 'revert'.

May I also suggest that the jit.gl.textures being named by  
jit.gl.model when reading the material file use the material name,  
and not the name of the texture on disk? This makes it even more  
confusing imo.

jit-gl-model-multitexturing-gripe-bug

just so you know im not making (at least, I dont think im making) a 

> [texture body_df.jpg body_df] (say you want tex0 and tex1 to be 

just so you know im not making (at least, I dont think im making) a  
syntax error.

> [texture body_df.jpg body_df]  (say you want tex0 and tex1 to be  
> the same)
>


jit.gl.model multitexturing gripe / bug ?