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color_convert: re-add npot_height

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This commit is contained in:
Zack Buhman 2025-04-26 03:02:16 -05:00
parent 37e0b80b68
commit 058de2d550
2 changed files with 6 additions and 5 deletions
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7
color_convert.py
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@ -110,7 +110,7 @@ def resize(im, l):
size=(l, l),
resample=Image.Resampling.LANCZOS,
)
new.save(f"{l:03}.png")
#new.save(f"{l:03}.png")
return new
def generate_mips(im):
@ -129,9 +129,10 @@ def write_mip(f, mip: Image, is_twiddled: bool, convert):
colors = list(convert_colors(convert, pixels))
assert len(colors) == width * height, len(colors)
if is_twiddled:
new_colors = [0] * width * height
npot_height = npot(height)
new_colors = [0] * width * npot_height
max_twiddle_ix = twiddle_texture(new_colors, colors, width, height)
assert max_twiddle_ix + 1 == width * height, (max_twiddle_ix, width, height)
#assert max_twiddle_ix + 1 == width * height, (max_twiddle_ix, width, height)
colors = new_colors[:max_twiddle_ix+1]
pack_colors(f, colors)

4
twiddle.py
View File

@ -49,11 +49,11 @@ def npot(v):
return v
def texture(dst, src, width, height):
#pot_height = npot(height)
pot_height = npot(height)
max_twiddle_ix = -1
for y in range(height):
for x in range(width):
twiddle_ix = from_xy(x, y, width, height)
twiddle_ix = from_xy(x, y, width, pot_height)
value = src[y * width + x]
dst[twiddle_ix] = value
if twiddle_ix > max_twiddle_ix: