When rendering the word "You" (with a capital Y) in a text object, there is
way too much space between the "o" and the "u". This happens in every font
I've tried it with, but it doesn't seem to happen in other words containing
"ou" (even "you" with a lowercase y). Here's an example:

#default { pigment { rgb 1 } finish { ambient 1 } }
camera { location <1, 0, -2> look_at <1, 0, 0> }
text { ttf "timrom.ttf", "You", 0, 0 }
text { ttf "timrom.ttf", "Zou", 0, 0 translate -y }

If you want, I'll post an image in .b-t.binaries.

Anders
(POV-Ray 3.5 beta 4, Win98, Athlon 700, 256MB)

Post a reply to this message

Hey, I just thought of what is probably happening. Because of kerning,
POV-Ray is moving the "o" towards the "Y", but is not moving the "u" as
well. If this is the case, it should definately be fixed.

"Anders K." <and### [at] f2scom> wrote in message
news:3bbb210d$1@news.povray.org...
> When rendering the word "You" (with a capital Y) in a text object, there
is
> way too much space between the "o" and the "u". This happens in every font
> I've tried it with, but it doesn't seem to happen in other words
containing
> "ou" (even "you" with a lowercase y). Here's an example:
>
> #default { pigment { rgb 1 } finish { ambient 1 } }
> camera { location <1, 0, -2> look_at <1, 0, 0> }
> text { ttf "timrom.ttf", "You", 0, 0 }
> text { ttf "timrom.ttf", "Zou", 0, 0 translate -y }
>
> If you want, I'll post an image in .b-t.binaries.
>
> Anders
> (POV-Ray 3.5 beta 4, Win98, Athlon 700, 256MB)
>
>
>

Post a reply to this message

> Hey, I just thought of what is probably happening. Because of kerning,
> POV-Ray is moving the "o" towards the "Y", but is not moving the "u" as
> well. If this is the case, it should definately be fixed.

And the patch is simple. In TRUETYPE.C, change these lines:

/* Shift next glyph by the width of this one */
total_offset[X] += ffile->hmtx_table[glyph->myMetrics].advanceWidth *
funit_size;

to:

/* Shift next glyph by the width of this one + any kerning amount */
total_offset[X] += (ffile->hmtx_table[glyph->myMetrics].advanceWidth +
kern_value_x) * funit_size;

I tested this with the POV-Ray 3.1 source, and it seems to work properly.

Post a reply to this message

"Anders K." <and### [at] f2scom> wrote in message news:3bbce3bc$1@news.povray.org...
> I tested this with the POV-Ray 3.1 source, and it seems to work properly.

As it does with 3.5. Thanks for the fix.

-- Chris

Post a reply to this message