 | | | Bump and no bump on same surface in one pass? | Bump and no bump on same surface in one pass? 2005-06-21 - By Guillaume Laforge
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> I hope they don't forget revamping bumpmaps for V5.0.
I hope too. Sometime bump is so complicate to use :-/
I just finished a little script who set the good bump step parameter for
you :-)
It will not help you with your bump/glossy surface bu maybe it can be
usefull ?
http://www.vol2nuit.fr/scripting/Jscript/Render/TheGoodBumpStep.js
Very practical if your bump map images are big and/or with a lot of repeat.
Cheers,
Guillaume Laforge
CG artist
www.vol2nuit.fr <http://www.vol2nuit.fr>
2005/6/21, Morten Bartholdy <xsi@(protected)>:
>
> I was using a mixer node too - I just think of color 1 as a layer on top
> of the base color. Actually, I can't reproduce that one. However if I plug
> an image or procedural texture directly into the bump channel of a Phong
> shader, the normals look like they take a hike - the specular is wrong. It
> will only render a proper specular when I plug the texture node into
> ambient/diffuse channels, which is sort of limiting.
> I hope they don't forget revamping bumpmaps for V5.0.
> - Morten
>
> -- -- Original Message -- --
> *From:* kim aldis <kim@(protected)>
> *To:* XSI@(protected)
> *Sent:* Monday, June 20, 2005 6:35 PM
> *Subject:* RE: Bump and no bump on same surface in one pass?
>
> When I tried it I wasn't using layers, I just used the mix node.
> . I put one Phong into each of the mix2nodes inputs. What was interesting
> was that the reflection remained flat where the illumination of the surface
> was bumped. So I took out the mixer and just plugged a Phong into the
> surface with a bump image in the Phong's bump. Again, the reflection didn't
> bump but the illumination did. As far as I can tell right now, if you bump a
> phong then it's reflection won't bump. Surely this can't be right?
>
> -- ---- ---- ---- ---- ---- --
> *From:* owner-xsi@(protected) [mailto:owner-xsi@(protected)] *On
> Behalf Of *Morten Bartholdy
> *Sent:* 20 June 2005 17:19
> *To:* XSI@(protected)
> *Subject:* Re: Bump and no bump on same surface in one pass?
>
> Edit:
> Kim you were right - only the order of layering is important! I started
> with the sublayer with bump as base color and added a reflective coating as
> color 1 - that makes the reflective coating bumpy too. If I swap the two and
> add the bumpy Phong to a reflective surface, the reflection is unaltered by
> the bump, which is what I want. A bit backwards though, but it works :)
> - Morten
>
> -- -- Original Message -- --
> *From:* kim aldis <kim@(protected)>
> *To:* XSI@(protected)
> *Sent:* Monday, June 20, 2005 4:37 PM
> *Subject:* RE: Bump and no bump on same surface in one pass?
>
> 2 phongs into a mix2colours node -> surface?
>
> -- ---- ---- ---- ---- ---- --
> *From:* owner-xsi@(protected) [mailto:owner-xsi@(protected)] *On
> Behalf Of *Chris Marshall
> *Sent:* 20 June 2005 15:41
> *To:* XSI@(protected)
> *Subject:* Re: Bump and no bump on same surface in one pass?
>
> There's a shader called XSI-clear-coat on XSI base. Sounds like it might
> do the job for you.
>
>
> Morten Bartholdy wrote:
>
> Hi List,
> I am shading an object which has a bumpy glossy reflective surface and a
> smooth layer of transparent laquer covering it, effectively rendering the
> surface smooth and reflective.
> I can't seem to create this combination in one pass on the same surface,
> so I wonder if anyone can offer a trick or workaround to make it work?
> TIA!
> Best regards
> Morten Bartholdy
> 3D & VFX Artist
> cell +45 2169 54676
>
>
> --- Unsubscribe? Mail Majordomo@(protected) with the following text in
> body: unsubscribe xsi
>
>
<div><font size="2">> I hope they don't forget revamping bumpmaps for V5.0.<
/font></div>
<div><font size="2"></font> </div>
<div><font size="2">I hope too. Sometime bump is so complicate to use :-/<
/font></div>
<div><font size="2"></font> </div>
<div><font size="2">I just finished a little script who set the good bump step
parameter for you :-)</font></div>
<div><font size="2"><font size="2">It will not help you with your bump/glossy
surface bu m</font>aybe it can be usefull ?</font></div>
<div> </div>
<div><font size="2"><a href="http://www.vol2nuit.fr/scripting/Jscript/Render
/TheGoodBumpStep.js">http://www.vol2nuit.fr/scripting/Jscript/Render
/TheGoodBumpStep.js</a></font></div>
<div><font size="2"></font> </div>
<div><font size="2">Very practical if your bump map images are big and/or
with a lot of repeat.</font></div>
<div><font size="2"></font> </div>
<div><font size="2">Cheers,</font></div>
<div><font size="2"></font> </div>
<div><font size="2">Guillaume Laforge</font></div>
<div><font size="2">CG artist</font></div>
<div><font size="2"><a href="http://www.vol2nuit.fr">www.vol2nuit.fr</a></font>
</div>
<div><font size="2"></font> </div>
<div><br><br> </div>
<div><span class="gmail_quote">2005/6/21, Morten Bartholdy <<a href="mailto
:xsi@(protected)">xsi@(protected)</a>>:</span>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0
.8ex; BORDER-LEFT: #ccc 1px solid">
<div><font face="Arial" size="2">I was using a mixer node too - I just think of
color 1 as a layer on top of the base color. Actually, I can't reproduce that
one. However if I plug an image or procedural texture directly into the bump
channel of a Phong shader, the normals look like they take a hike - the
specular is wrong. It will only render a proper specular when I plug the
texture node into ambient/diffuse channels, which is sort of limiting.
</font></div>
<div><font face="Arial" size="2"></font> </div>
<div><font face="Arial" size="2">I hope they don't forget revamping bumpmaps
for V5.0.</font></div><span class="sg">
<div><font face="Arial" size="2"></font> </div>
<div><font face="Arial" size="2"></font> </div>
<div><font face="Arial" size="2">- Morten</font></div>
<div> </div>
<div><font face="Arial" size="2"></font> </div></span>
<blockquote dir="ltr" style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT
: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px"><span class="q">
<div style="FONT: 10pt arial">-- -- Original Message -- -- </div>
<div style="BACKGROUND: #e4e4e4; FONT: 10pt arial"><b>From:</b> <a title="kim
@(protected)" onclick="return top.js.OpenExtLink(window,event,this)" href=
"mailto:kim@(protected)" target="_blank">kim aldis</a> </div>
<div style="FONT: 10pt arial"><b>To:</b> <a title="XSI@(protected)" onclick=
"return top.js.OpenExtLink(window,event,this)" href="mailto:XSI@(protected)"
target="_blank">XSI@(protected)</a> </div></span>
<div><span class="e" id="q_1049c1452b956eff_4">
<div style="FONT: 10pt arial"><b>Sent:</b> Monday, June 20, 2005 6:35 PM</div>
<div style="FONT: 10pt arial"><b>Subject:</b> RE: Bump and no bump on same
surface in one pass?</div>
<div><br> </div>
<div dir="ltr" align="left"><span><font face="Arial" color="#0000ff" size="2"
>When I tried it I wasn't using layers, I just used the mix node.</font></span><
/div>
<div dir="ltr" align="left"><span><font face="Arial" color="#0000ff" size="2">.
I put one Phong into each of the mix2nodes inputs. What was interesting was
that the reflection remained flat where the illumination of the surface was
bumped. So I took out the mixer and just plugged a Phong into the surface with
a bump image in the Phong's bump. Again, the reflection didn't bump but the
illumination did. As far as I can tell right now, if you bump a phong then it's
reflection won't bump. Surely this can't be right?
</font></span></div>
<div dir="ltr" align="left"><span><font face="Arial" color="#0000ff" size="2"><
/font></span> </div>
<div dir="ltr" align="left"><span></span> </div><br>
<blockquote dir="ltr" style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT:
#0000ff 2px solid; MARGIN-RIGHT: 0px">
<div lang="en-us" dir="ltr" align="left">
<hr>
<font face="Tahoma" size="2"><b>From:</b> <a onclick="return top.js.OpenExtLink
(window,event,this)" href="mailto:owner-xsi@(protected)" target="_blank">owner
-xsi@(protected)</a> [mailto:<a onclick="return top.js.OpenExtLink(window
,event,this)" href="mailto:owner-xsi@(protected)" target="_blank">
owner-xsi@(protected)</a>] <b>On Behalf Of </b>Morten Bartholdy<br><b>Sent:<
/b> 20 June 2005 17:19<br><b>To:</b> <a onclick="return top.js.OpenExtLink
(window,event,this)" href="mailto:XSI@(protected)" target="_blank">
XSI@(protected)</a><br><b>Subject:</b> Re: Bump and no bump on same surface
in one pass?<br></font><br> </div>
<div></div>
<div><font face="Arial" size="2">Edit:</font></div>
<div><font face="Arial" size="2"></font> </div>
<div><font face="Arial" size="2">Kim you were right - only the order of
layering is important! I started with the sublayer with bump as base color and
added a reflective coating as color 1 - that makes the reflective coating bumpy
too. If I swap the two and add the bumpy Phong to a reflective surface, the
reflection is unaltered by the bump, which is what I want. A bit backwards
though, but it works :)
</font></div>
<div><font face="Arial" size="2"></font> </div>
<div><font face="Arial" size="2">- Morten</font></div>
<div><font face="Arial" size="2"></font> </div>
<blockquote dir="ltr" style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT
: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<div style="FONT: 10pt arial">-- -- Original Message -- -- </div>
<div style="BACKGROUND: #e4e4e4; FONT: 10pt arial"><b>From:</b> <a title="kim
@(protected)" onclick="return top.js.OpenExtLink(window,event,this)" href=
"mailto:kim@(protected)" target="_blank">kim aldis</a> </div>
<div style="FONT: 10pt arial"><b>To:</b> <a title="XSI@(protected)" onclick=
"return top.js.OpenExtLink(window,event,this)" href="mailto:XSI@(protected)"
target="_blank">XSI@(protected)</a> </div>
<div style="FONT: 10pt arial"><b>Sent:</b> Monday, June 20, 2005 4:37 PM</div>
<div style="FONT: 10pt arial"><b>Subject:</b> RE: Bump and no bump on same
surface in one pass?</div>
<div><br> </div>
<div dir="ltr" align="left"><span><font face="Arial" color="#0000ff" size="2">2
phongs into a mix2colours node -> surface?</font></span></div><br>
<blockquote style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #0000ff
2px solid; MARGIN-RIGHT: 0px">
<div lang="en-us" dir="ltr" align="left">
<hr>
<font face="Tahoma" size="2"><b>From:</b> <a onclick="return top.js.OpenExtLink
(window,event,this)" href="mailto:owner-xsi@(protected)" target="_blank">owner
-xsi@(protected)</a> [mailto:<a onclick="return top.js.OpenExtLink(window
,event,this)" href="mailto:owner-xsi@(protected)" target="_blank">
owner-xsi@(protected)</a>] <b>On Behalf Of </b>Chris Marshall<br><b>Sent:</b>
20 June 2005 15:41<br><b>To:</b> <a onclick="return top.js.OpenExtLink(window
,event,this)" href="mailto:XSI@(protected)" target="_blank">XSI@(protected)
</a><br><b>Subject:</b> Re: Bump and no bump on same surface in one pass?<br><
/font><br> </div>
<div></div>There's a shader called XSI-clear-coat on XSI base. Sounds like it
might do the job for you.<br><br><br>Morten Bartholdy wrote:
<blockquote cite="http://mid000d01c575a1$f024dfa0$2d01a8c0@(protected)" type="cite">
<div><font face="Arial" size="2">Hi List,</font></div>
<div> </div>
<div> </div>
<div><font face="Arial" size="2">I am shading an object which has a bumpy
glossy reflective surface and a smooth layer of transparent laquer covering it,
effectively rendering the surface smooth and reflective.</font></div>
<div> </div>
<div><font face="Arial" size="2">I can't seem to create this combination in one
pass on the same surface, so I wonder if anyone can offer a trick or
workaround to make it work?</font></div>
<div> </div>
<div><font face="Arial" size="2">TIA!</font></div>
<div> </div>
<div> </div>
<div><font face="Arial" size="2">Best regards</font></div>
<div> </div>
<div><font face="Arial" size="2">Morten Bartholdy<br>3D & VFX Artist<br
>cell +45 2169 54676<br></font></div></blockquote><br>--- Unsubscribe? Mail <a
onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:Majordomo
@(protected)" target="_blank">
Majordomo@(protected)</a> with the following text in body: unsubscribe xsi <
/blockquote></blockquote></blockquote></span></div></blockquote></blockquote><
/div><br>
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