Export the scene with custom shaders and canvas texture

Questions
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1

I have a scene with custom shaders applied to a material and I use canvas texture to pass it inside the fragment as a uniform. I want to export the same scene.

What type of exporter should I use or how should the export be done? I have searched for the solutions in the forums but looks like it’s not possible using custom shaders. Any ideas?

I cannot remove the custom shaders as I have an algorithm that calculates the uv coordinates and to avoid texture stretching I have put logic inside fragment shader that avoids stretching issue. But it looks like exporting is not possible. :thinking:

This is the code I use in the fragment shader.

  bool inXBounds = uv[0] < 1.0 && uv[0] >= 0.0;
  bool inYBounds = uv[1] < 1.0 && uv[1] >= 0.0;

  if(inXBounds && inYBounds) {
    gl_FragColor = vec4(outgoingLight, diffuseColor.a) * texture2D(c_texture, uv);
  } else {
    gl_FragColor = vec4(0);
  }

For more context this is what exported image looks like if I do not use the fragment shader.
image