Gary Leyrn

I need help to change the color of this shape into white. I am using a shader from vade001, to displace vertex.

I tried to connect a jit.gl.texture object to the second inlet of jit.gl.mesh and it did not work. 

I tried to change the glcolor attribute value in mesh, and it did not work.

comment

message

jit.gl.mesh

line

flonum

prepend

jit.gl.handle

jit.gl.shader

jit.fpsgui

jit.gl.gridshape

toggle

qmetro

jit.window

jit.gl.render

pvar

loadbang

button

outlet

tosymbol

inlet

sprintf

random

thispatcher

bgcolor

panel

ubutton

fpic

v001.3d.sin.jxs

Hello, 
I need help to change the color of this shape into white.  I am using a shader from  vade001, to displace vertex. 

I tried to connect a jit.gl.texture object to the second inlet of jit.gl.mesh and it did not work. 
I tried to change the glcolor attribute value in mesh,  and it did not work. 

Hello, 
I need help to change the color of this shape into white.  I am using a shader from  vade001, to displace vertex. 
I tried to connec

how-to-change-the-color-of-a-shape-or-add-it-a-texture-when-using-a-3d-vertex-displacement-shader

Hello, I don't know if I understood the problem correctly, but when I change the sampler2D and texture2D in your fragment program to the rectangle version then I can apply a texture (e.g. jit.playlist with argument output texture 1).

texel = texture2D(tex0,gl_TexCoord[0].st);

texel = texture2DRect(tex0,gl_TexCoord[0].st);

Change
uniform sampler2D tex0;
 to 
uniform sampler2DRect tex0;

texel = texture2D(tex0,gl_TexCoord[0].st);
to
texel = texture2DRect(tex0,gl_TexCoord[0].st);

Thanks Martin, It worked. I can see the texture now!

However, when I don't use the texture, I cannot change the color of the shape using the gl_color attribute in mesh. ( When I change this the shape looks orange and only smooth shades are varying). I would like it to be white. 

I tried also to give jit.gl.mesh a color array in its 4th inlet and it didn't work. Perhaps I'm missing something really basic since I'm new using shaders.

Any idea about how to change the color of the shape when the texture is off?

Thanks Martin, It worked.  I can see the texture now! 

However, when I don't use the texture, I cannot change the color of the shape using the gl_color attribute in mesh.  ( When I change this the shape looks orange and only smooth shades are varying).   I would like it to be white. 

I tried also to give jit.gl.mesh a color array in its 4th inlet and it didn't work.   Perhaps I'm missing something really basic since I'm new using shaders. 

Any idea about how to change the color of the shape when the texture is off? 

The fragment program of your shader overwrites color Information. Maybe the tutorials on shader programming here help you unserstand whats happening

https://www.federicofoderaro.com/videoTutorials.html

The   fragment program of  your  shader overwrites color Information.  Maybe the  tutorials on shader programming  here  help  you  unserstand whats happening  

Maybe this written tutorial is a good start

https://www.federicofoderaro.com/introduction_to_shaders.html

And what you may want to try is to set your fragment program to this:

Maybe this written tutorial is a good start 

That way can also work, here's a really simple example where, in a very brute-force kinda manner i can force everything white when the texture is off:

(but i'd follow Martin's advice as you'll learn to be more specific 😉)

I tried also to give jit.gl.mesh a color array in its 4th inlet and it didn't work.   Perhaps I'm missing something really basic since I'm new using shaders.  ...   Any idea about how to change the color of the shape when the texture is off?

Thank you Martin and Raja! I will study what you suggested and thanks for the examples!

How to change the color of a shape or add it a texture when using a 3D vertex displacement shader.