Refine obj import to blender, color attribute not found about era3d HOT 6 OPEN

it's a clipping problem after the training. simple clamping like the code below may circumvent the problem where values spike above 1.0f

def optim_clr(case, img_path, mesh_dir, save_dir, device):
    ...             
    np_colors= to_numpy(color_model.colors)         
    np.clip(np_colors, 0.0, 1.0, out=np_colors) #clamp    
    tensor_colors = torch.tensor(np_colors ,dtype=torch.float32,device=device)
    
    save_obj(vert, face, f'{save_dir}/refine_{case}.obj', tensor_colors.detach())  
    ...

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dunno TBH. would like to take a look into it though. I've been noticing it too. it's weird. with normals flipped in the wrong axes and stuff

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@bananaman1983 Excellent! you also solved the issue of noise in the colors of my exported mesh.
by:

  texture_color = torch.clamp(color_model.colors.detach(), min=0, max=1)
  save_obj(vert, face, f'{save_dir}/refine_{case}.obj', texture_color)

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Usually blender can't get vertex color from obj file. ( In my case blender 3.6.2 )
You can export as ply with vertex color from original obj file by tool like MeshLab.
There is also issue about this. #14 (comment)

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@bananaman1983 Could you guess about this issue too ? #26

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@bananaman1983 @miaowu99 Great Job !
You solved this issue ! #4 👍

before

after

@pengHTYX You can check it too !

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