RGB颜色列表（例如[255,0,0]）到二进制（例如b'\\ xff \\ x80 \\ x00'）（用于混合器纹理缓冲区）

Question

sorry if it's a duplicate, I found a lot of pointers but no answer about the following ;

I want to convert that kind of rgb values list :

rgb = [ 255,128,0 ]

to this binary format :

Brgb = b'\xff\x80\x00'

this is to feed a GL texture buffer in blender and generate a uniform texture.

so far, I mean since 10mn after 3 hours clicking there and there and testing, I use this lame, but working, code :

rgb = [255,128,0]
rgb = "\\x%02X\\x%02X\\x%02X" % (rgb[0],rgb[1],rgb[2])
brgb = eval("b'%s'"%rgb)

logic.tex.source.load( brgb * (256*256),256,256)
# got this orange texture in my buffer

how would you do this properly ? many thanks

Answer 1

Just turn the integers into bytes directly :

>>> rgb = [255, 128, 0]
>>> bytes(rgb)
b'\xff\x80\x00'

The sequence of integers is directly interpreted as byte values.