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TimoBolkart / BFM_to_FLAME

Convert from Basel Face Model (BFM) to the FLAME head model
http://flame.is.tue.mpg.de
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BFM point color should be multiply by the color coefficient? #1

Closed hastaluegoph closed 3 years ago

hastaluegoph commented 3 years ago

Thanks for a great work ! It's brilliant to transfer the uv basis of FLAME from BFM. I have a problem here, for calculate the point color, should it multiply by the color coefficient? I found that part is exactly same with the mean color calculation. Snipaste_2020-12-17_00-06-53

TimoBolkart commented 3 years ago

That part computes the color of a pixel by Barycentric coordinates. The Barycentric coordinates however do not change, that's why the code is the same for both. However the bfm_verts_color for a particular component differs from the mean computation. Just print the values of bfm_verts_color for the mean and then for each of the components inside the for loop. You will see that it changes. Alternatively print mean_point_color and point_color and you will see that they actually differ. Does that answer your question?

I think what might cause the confusion is that color is an object that depends on the color_coeffs. By setting values for color_coeffs the value of color changes. To get the value of color then, one just writes color.r. If you want to know more about how that works, color is a Chumpy object.

hastaluegoph commented 3 years ago

yes, that answer my question! I just check the colors values, it does change every iteration by setting the color_coeffs. Thanks for your help and patience!