β Blender.TodayCommunity22 Mar 2020pablovazquezyoutube.compablovazquezAnityExFrozen_Death_KnightReinhardKXdragon5502christianclavetegi.danilofrostcrackstudiojodyrothparkeramitraksharrodolfocostaclementetestcard.wp160urkokul
Just bring back the global brush palette. Why is it taking so long?
Also, Dyntopo is one of the best things in blender, I would like to see it getting some love, specially on the performance side.
8
1
14arianuddin
<h6>Hello Pablo, I wanted to ask three quick questions: </h6>
1 <b>How satisfied is Pablo Dobarro</b> with the sculpt improvements in Blender?
2 What are his plans for <b>manual retopology</b> tools?
3 What are his plans for <b>Dynamic Topology</b>? Is it going to be removed or is he planing, rewriting the code for better performance or replacing it with something different?
(Can we also have shortcut <b>Shfit + O</b> in sculpt mode to change the <b>fallof type</b> of the brush similar to how we have it in edit and object mode?)
7
p
parkeramitrakshar
*
@14arianuddin
* May the Blender be with you DynTopo....
K
Kdaf
Hello Pablo x2, Jama and Julien, I have 2 questions for you :
New brushes are coming soon ?
A brush for adding meshes maybe ?
What will be the next features for the sculpt mode ?
4
p
parkeramitrakshar
*
@Kdaf
* Cloth brusheeeeessssss....?
A
AnityEx
henloo pablos! when can we expect development on tools for a more realistic workflow like extracting geometry as alphas for the draw brush?
also what about texture painting brushes? krita live link?
4
p
paulhart
Pablo, Ola
NPR?? Freestyle is still slow, crashes on complex files, doesn't like fur, leaves, etc., and LANPR is 'Frozen' at 2.83.2 and is unstable. Help NPR! It should move along with Grease Pencil, SVG Export, animation and illustration. Status? Is anybody assigned to the project with Yiming Wu stuck in China?
Thank you for your continued fine work and videos.
4
P
Pascal
Hi Everyone.
I have two quick question for both Pablo's :)
Pablo B : any plans to adress Sculpt mode workflow & jumping between object/sculpt mode, it's really killing the mood when you have to switch each time you want to add mesh or extract one, it would be also nice to have the new booleans system aslo in sculpt mode.
Pablo V : Why Blender have framerate cap to 60? you can put 120FPS but it'll only shows 60FPS in the viewport...my assumption it's tied to the monitor's refresh rate.
Thanks.
3
t
temeddix
Hi, love your nice show! Watching Blender Today for months, I decided to post my old question here.
Does Blender Development team have any plan to implement proper IME(on Windows) for users from various countries?
I'm a Korean user and I found many complaints around Korean communities saying it's hard to use Blender because of its vulnerability to write Korean. There are 70 million users using Korean and much more people out there using languages other than English. Surely not all people are comfortable with using English all the time. If this problem gets solved, it would be a big leap toward being an industry standard.
Recently,
one nice patch for this problem
was provided on Blender Developers(by a Korean developer!). Is there any possibilities this would be reviewed soon enough?
3
d
damian_winnichenko
Jees! What a list of stars!
My respect to everyone!
My questions to Pablo Dobarro: I was inspired when the new 'Mask and slice' tool, was developed, it is one of the often needed tools. Although, sometimes when sculpting hard surface it is also often needed to cut geometry in a straight razor shaped line.
Do you consider implementing similar to 'bisect' tool be added to the sculpting system?
VDB-based boolean operations would be awesome too!
Thanks!
3
p
pablovazquezAuthor
Pablo Dobarro, Jama Jurabaev, and Julien Kaspar get together to talk all things sculpt.
Get all your SCULPT questions answered!
3
d
dawood.2006
*
@Pablo Vazquez
* add game logic again
h
harvid22
I would like to hear if you still considering / possibility with Vector displacement brush in blender
2
c
cdealmeidar
Just one thing: CONGRATULATIONS and THANKS! For all the love you give to Blender, all of you.
2
l
limarest
Pablo, are you planning to touch texture paint workflow? While sculpting has improved a lot, texture paint really needs some love.
2
z
zinogg
Hi Everyone i hope you're doing well in these hard times.
I got 3 Questions for the 3 Artists ;)
Dobarro : do you have a clear roadmap for the future, i know you're planning to work on Vertex Color/Attribute Edit but what about retopo and texture painting?
Jurabaev : Where do you see Blender fit more in a large pipeline or can be used as a central hub?
Kaspar : What advice would you give your younger self today?
I have just a small request to Pablo Vazquez, can you do a howtoBlender about
Multires vs Subdvision for sculpting & animation, coming to Blender i thought Multires is for Sculpting only while Subdiv is for modeling and animation playback but looks i was wrong.
thank you guys :)
2
C
Cobra
HI Pablo.
My question is.
Why doesn't Blender have unlimited Undo steps like the other apps, it's limited to only 256? I haven't seen anyone discuss it even the Devs, can we have it with the new undo system or this will require another whole new design?.
2
f
fink.marco
Any News on KeyMesh?
2
Q
Qwerty
Is there any news on the Blueprint tool? At one time, it was part of the sculpt branch,
Thanks for all that you're doing here!
2
M
Mille_Porte
*Blender Live Code Day #1
Hi Pablo, will you start a new series of video focused on Blender API?
Blender is an open source project and I think could be very crucial enabling more people possible to work inside Blender code.
Much more help could come from the community to solve big or minus and tedious tasks, bug fixing ecc. freeing the main developers to develop the
F.O.F.
: Features Of the Future :) !!
2
f
frostcrackstudio
Can Belnder get the "Simple Renaming Panel" addon in Blender?
it let you rename multiple names in Blender at the same time.
*
@frostcrackstudio
* There is already a tool for that builtin, it's Rename & batch rename in the edit menu.
f
frostcrackstudio
*
@zinogg
*yes, but this addon can rename unselected Objects and Shape Keys, It aloved me to rename about 1000 Shape Keys in 10 sec on 2 Obejcts whit 1 click
l
lesierra89
Hi to all. Kudos to all. Respect to all:
Is the Sculpt Brushes Resetting on each update requirement going away after 2.83?
With XR implementation on the way, is "on-the-air" sculpting, as in other VR Sculpting Apps, coming?
(Kind of like the Hair-Tool Add-On draws hair with strokes, but for Sculpt Mode meshes)
(Based on a past Blender Today suggestion)
Is a freehand Knife-Tool possible? (a grease-pencil like, stroke-based cut instead of a click-per-vertex, straight-lines cut)
Thanks for all your hard work. Stay safe, everyone! (b'u')b
2
j
juangea
Hello People!
My question goes for Sculpt layers (additive mode and other modes), are there in the roadmap? :)
STAY SAFE!!!!! (pablo Dobarro... don't go out to the street! )
1
J
Josephbburg
Hey Pablos! In one of the previous Blender Todays, Pablo Dobarro mentioned something about a volume sculpt tool using vdb under the hood. Any news?
Also, we want to see Julian's cat!
1
J
Josephbburg
*
@Josephbburg
* Pablo please get a mod for the chat, the bots have found Blender everyday!
k
kouzanagi
I heard Jama is working on an addon for the concept design, can have more info about it ?
1
E
Elre
Hi guys thank you for your work.
I wonder if there is any way to do a sort of "connected only" mode like in proportional editing. It will be faster than create a mask.
For example if you have a "U" mesh and want to grab just one tip with a big brush without affecting the other tip even if it's in the falloff area.
Thank you again!
1
J
Jakob-leitner
Hi guys, greetings from Austria.
Is there something in the Sculpt section that needs to be refactored?
This one is for the community.
I would love to see a community challenge happen. Topic: "Blender Today Opening redesign". I like the actual one and other people also do. But maybe its time for a new one?
In the future improvement of Texture painting is Layer texturing included? In short something like photoshop.
g
gilbertorodrigues
Hi Jama, do you think that blender could be widely used in big industry productions in the future? What it does need to get there and kill zbrush and maya?
j
joekim_7
youtube.com/watch
Capture3png}
hey Dobarro do you think you can create a tool where you can retopologize with the annotation tool? I personally feel this should be a high priority
d
dawood.2006
add game logic again
c
ckat609
hey guys! It's awesome to have these guests!
Question... are there any plans to include other remeshing algorithms?
d
dawood.2006
add game logic again
c
cdealmeidar
Have you thought about or have plans for any version of Blender for iPads? I think it would be a good tool to have the power of Blender sculpt on a portable device. And, if the answer is "no", what do you guys think about it?
d
dawood.2006
add game logic again
a
andrekling
Any plans in adding slicing for 3d printing in blender? i would love to support my models in blender instead of using chitubox for example?
i
invalidacess
2 question...
1)Can you make the icons on properties bigger? They feel small and hard for me to click sometimes bc visual impaired. Maybe allow us to resize the icons bigger?
2) can you make the quick favorites work on every screen? Like I put smooth faces in quick fav but when I go to scoring it does not show up in sculpting. I have to go to object mode. Please let it show up all the time.
K
Kdaf
Is it possible to make dyntopo making a mesh with square like the remesh, no triangles. Thanks so much
i
inventadero
Hi! ~ ~ ~
βAll this amzing stuff . . . in XR are gona be posible to work with!? thanke
S
SomeAB
Can we export a video .mp4 file, into blender (perhaps sequencer?) .. and play with animation curves.. like we can do using Graph Editor for animations made in Blender itself?
I would like to change the pace of certain part of the video I imported (make it slower or faster).
F
Frozen_Death_Knight
Since Pablo worked a bit on the Poly Build tool some time ago, could he please take a look at it again in the future? There are a bunch of issues plaguing the tool that makes it less than ideal for doing retopology that some add-ons have managed to address with their similar tools.
You can select and delete vertices and faces behind the faces that are actually in front of the camera.
Using shift to remove faces is very picky with what can be selectable. Unless you turn your camera to a certain angle and zoom in enough, you can often have a hard time actually deleting the right faces. Doesn't help that we have issues like number 1.
You can't create geometry from scratch with it. If you start off with no polygons to edit in Edit Mode you can't start drawing quads with the tool. Plus, it always tries to draw based on the closest geometry instead of creating new vertices and faces. I would suggest looking up Polyquilt and how it handles the creation of geomtry in empty areas. Really useful.
A question for the other guests. Do you create tutorials of your work? Would be nice to learn more about your workflows. :)
d
daniellapalme
Hi guys! So many devs in one video haha!
My question is for Pablo Dobarro. Smooth brush nowadays has a red color (white before), but if you are on any other brush, holding shift will make use of the smooth brush. Why doesn't the brush color change to red to indicate you are using the smooth brush when holding shift? It has always seemed strange to me that there is no feedback that you are now using the smooth brush. Would that be something you think would be worthy to work on? along with "Ctrl" as well having some sort of feedback?
u
unleashed75
Hello Pablo and all you lovely Blender Peeps.
This is about Particles which I really enjoy playing with. I understand that this is getting a update;
In the Particles settings under
Render
you can have the option for
Line
.
This was a really nice feature before 2.8 came along but since 2.8 the option for
Line
is there but there are no settings to change it. (Things like
Head, Tail, Trail Count and Length
)
When looking on the Online Manual it doesn't even mention the
Line
option even though all the others are.
I would really like to see this feature and loads more getting some love for Particles.
Thoughts?
Thanks to the Blender team for all that they do <3
g
giuseppe.bufalo
Hola Pablo, when are we gonna see the trim curve in blender, like the one in ZBrush ? Will it make in the version 2.84?
p
printerkiller
Hi all!
Is there a tool equivalent to ZRimesher planned for Blender's sculpt roadmap?
m
mau.memoli
Hi Pablos!
I have a request for a brush. I work in VFX industry. I do FACS based blendshape rigs (blendshpe = maya name for shape keys). Maya and Mudbox have a brush that is crucial for whoever works with blendshapes. It is called smooth target(shapekey). What the brush does is smoothing the delta on the shapekey and brings back the mid/low frequency detail from the the base model. This tool is extremely handy I really miss this feature in blender.
One more thing. Do you guys think you can make work the sculpting tool on all the modifiers? Right now it is working correctly only with armature modifier. For all the other modifiers such as hooks it doesn't extract the rotation of the empty that is deforming the mesh.
k
kookitoocg
hola guys,
just wanna ask if pablo planing to improve the auto retopo tools .
the voxel remesher is 10x slower than dynamesh ,2. quadriflow results are imposible to uv and most impotently on a complicated models it breaks the geometry like the image bellow
I submitted a proposal around two months ago, and I think these UI stuff worth more than the actual social traction of that, especially for sculpt/paint/grease users:
It would be great to discuss about these.
Thank you!
S
SciVfx
The most important:
Pressure Sensitive Sliders & Drag/Move
More pressure means more rapid value change, but if you press gently, you can fine tune. The analogue version of the Shift modifier. Basically the math is: [pressure] * [X or Y coordinate change of the pen] = [value change].
(If you used Flame, you know what I mean.)
It could be not just for simple values, but also for manipulators, color picker/ball, timeline.
n
nalinbro28
I know this is not related to sculpting but is there a way to bake displacement maps without multires or is this feature planned for future
R
Roman
Hi pablo! Will high resolution sculpting improve? Now itβs harder to work than in version 2.79.
1
14arianuddin
*
@Roman
* I think he has plans for some new <b>mesh data structure</b> or something like that which could help with performance in high polygon sculpting
58 Comments
Just bring back the global brush palette. Why is it taking so long?
Also, Dyntopo is one of the best things in blender, I would like to see it getting some love, specially on the performance side.
<h6>Hello Pablo, I wanted to ask three quick questions: </h6>
1 <b>How satisfied is Pablo Dobarro</b> with the sculpt improvements in Blender?
2 What are his plans for <b>manual retopology</b> tools?
3 What are his plans for <b>Dynamic Topology</b>? Is it going to be removed or is he planing, rewriting the code for better performance or replacing it with something different?
(Can we also have shortcut <b>Shfit + O</b> in sculpt mode to change the <b>fallof type</b> of the brush similar to how we have it in edit and object mode?)
* @14arianuddin * May the Blender be with you DynTopo....
Hello Pablo x2, Jama and Julien, I have 2 questions for you :
New brushes are coming soon ?
A brush for adding meshes maybe ?
What will be the next features for the sculpt mode ?
* @Kdaf * Cloth brusheeeeessssss....?
henloo pablos! when can we expect development on tools for a more realistic workflow like extracting geometry as alphas for the draw brush?
also what about texture painting brushes? krita live link?
Pablo, Ola NPR?? Freestyle is still slow, crashes on complex files, doesn't like fur, leaves, etc., and LANPR is 'Frozen' at 2.83.2 and is unstable. Help NPR! It should move along with Grease Pencil, SVG Export, animation and illustration. Status? Is anybody assigned to the project with Yiming Wu stuck in China? Thank you for your continued fine work and videos.
Hi Everyone.
I have two quick question for both Pablo's :)
Pablo B : any plans to adress Sculpt mode workflow & jumping between object/sculpt mode, it's really killing the mood when you have to switch each time you want to add mesh or extract one, it would be also nice to have the new booleans system aslo in sculpt mode.
Pablo V : Why Blender have framerate cap to 60? you can put 120FPS but it'll only shows 60FPS in the viewport...my assumption it's tied to the monitor's refresh rate.
Thanks.
Hi, love your nice show! Watching Blender Today for months, I decided to post my old question here.
Does Blender Development team have any plan to implement proper IME(on Windows) for users from various countries?
I'm a Korean user and I found many complaints around Korean communities saying it's hard to use Blender because of its vulnerability to write Korean. There are 70 million users using Korean and much more people out there using languages other than English. Surely not all people are comfortable with using English all the time. If this problem gets solved, it would be a big leap toward being an industry standard.
Recently, one nice patch for this problem was provided on Blender Developers(by a Korean developer!). Is there any possibilities this would be reviewed soon enough?
Jees! What a list of stars! My respect to everyone!
My questions to Pablo Dobarro: I was inspired when the new 'Mask and slice' tool, was developed, it is one of the often needed tools. Although, sometimes when sculpting hard surface it is also often needed to cut geometry in a straight razor shaped line.
Do you consider implementing similar to 'bisect' tool be added to the sculpting system?
VDB-based boolean operations would be awesome too! Thanks!
Pablo Dobarro, Jama Jurabaev, and Julien Kaspar get together to talk all things sculpt.
Get all your SCULPT questions answered!
* @Pablo Vazquez * add game logic again
I would like to hear if you still considering / possibility with Vector displacement brush in blender
Just one thing: CONGRATULATIONS and THANKS! For all the love you give to Blender, all of you.
Pablo, are you planning to touch texture paint workflow? While sculpting has improved a lot, texture paint really needs some love.
Hi Everyone i hope you're doing well in these hard times.
I got 3 Questions for the 3 Artists ;)
Dobarro : do you have a clear roadmap for the future, i know you're planning to work on Vertex Color/Attribute Edit but what about retopo and texture painting?
Jurabaev : Where do you see Blender fit more in a large pipeline or can be used as a central hub?
Kaspar : What advice would you give your younger self today?
I have just a small request to Pablo Vazquez, can you do a howtoBlender about Multires vs Subdvision for sculpting & animation, coming to Blender i thought Multires is for Sculpting only while Subdiv is for modeling and animation playback but looks i was wrong.
thank you guys :)
HI Pablo.
My question is. Why doesn't Blender have unlimited Undo steps like the other apps, it's limited to only 256? I haven't seen anyone discuss it even the Devs, can we have it with the new undo system or this will require another whole new design?.
Any News on KeyMesh?
Is there any news on the Blueprint tool? At one time, it was part of the sculpt branch,
Thanks for all that you're doing here!
*Blender Live Code Day #1
Hi Pablo, will you start a new series of video focused on Blender API?
Blender is an open source project and I think could be very crucial enabling more people possible to work inside Blender code. Much more help could come from the community to solve big or minus and tedious tasks, bug fixing ecc. freeing the main developers to develop the F.O.F. : Features Of the Future :) !!
Can Belnder get the "Simple Renaming Panel" addon in Blender? it let you rename multiple names in Blender at the same time.
source code: github.com/Weisl/simple_renaming_panel
Download page: gumroad.com/l/simple_renaming_panel
{attachment sssspng}
* @frostcrackstudio * There is already a tool for that builtin, it's Rename & batch rename in the edit menu.
* @zinogg *yes, but this addon can rename unselected Objects and Shape Keys, It aloved me to rename about 1000 Shape Keys in 10 sec on 2 Obejcts whit 1 click
Hi to all. Kudos to all. Respect to all:
(Kind of like the Hair-Tool Add-On draws hair with strokes, but for Sculpt Mode meshes)
(Based on a past Blender Today suggestion)
Thanks for all your hard work. Stay safe, everyone! (b'u')b
Hello People!
My question goes for Sculpt layers (additive mode and other modes), are there in the roadmap? :)
STAY SAFE!!!!! (pablo Dobarro... don't go out to the street! )
Hey Pablos! In one of the previous Blender Todays, Pablo Dobarro mentioned something about a volume sculpt tool using vdb under the hood. Any news?
Also, we want to see Julian's cat!
* @Josephbburg * Pablo please get a mod for the chat, the bots have found Blender everyday!
I heard Jama is working on an addon for the concept design, can have more info about it ?
Hi guys thank you for your work.
I wonder if there is any way to do a sort of "connected only" mode like in proportional editing. It will be faster than create a mask. For example if you have a "U" mesh and want to grab just one tip with a big brush without affecting the other tip even if it's in the falloff area.
Thank you again!
Hi guys, greetings from Austria.
Is there something in the Sculpt section that needs to be refactored?
This one is for the community.
I would love to see a community challenge happen. Topic: "Blender Today Opening redesign". I like the actual one and other people also do. But maybe its time for a new one?
Hi, Any News about the Secondary window improvements? developer.blender.org/T69819
Are there any plans on voxel sculpting
3d brush in texture paint
In the future improvement of Texture painting is Layer texturing included? In short something like photoshop.
Hi Jama, do you think that blender could be widely used in big industry productions in the future? What it does need to get there and kill zbrush and maya?
youtube.com/watch Capture3png} hey Dobarro do you think you can create a tool where you can retopologize with the annotation tool? I personally feel this should be a high priority
add game logic again
hey guys! It's awesome to have these guests!
Question... are there any plans to include other remeshing algorithms?
add game logic again
Have you thought about or have plans for any version of Blender for iPads? I think it would be a good tool to have the power of Blender sculpt on a portable device. And, if the answer is "no", what do you guys think about it?
add game logic again
Any plans in adding slicing for 3d printing in blender? i would love to support my models in blender instead of using chitubox for example?
2 question... 1)Can you make the icons on properties bigger? They feel small and hard for me to click sometimes bc visual impaired. Maybe allow us to resize the icons bigger? 2) can you make the quick favorites work on every screen? Like I put smooth faces in quick fav but when I go to scoring it does not show up in sculpting. I have to go to object mode. Please let it show up all the time.
Is it possible to make dyntopo making a mesh with square like the remesh, no triangles. Thanks so much
Hi! ~ ~ ~ βAll this amzing stuff . . . in XR are gona be posible to work with!? thanke
Can we export a video .mp4 file, into blender (perhaps sequencer?) .. and play with animation curves.. like we can do using Graph Editor for animations made in Blender itself?
I would like to change the pace of certain part of the video I imported (make it slower or faster).
Since Pablo worked a bit on the Poly Build tool some time ago, could he please take a look at it again in the future? There are a bunch of issues plaguing the tool that makes it less than ideal for doing retopology that some add-ons have managed to address with their similar tools.
You can select and delete vertices and faces behind the faces that are actually in front of the camera.
Using shift to remove faces is very picky with what can be selectable. Unless you turn your camera to a certain angle and zoom in enough, you can often have a hard time actually deleting the right faces. Doesn't help that we have issues like number 1.
You can't create geometry from scratch with it. If you start off with no polygons to edit in Edit Mode you can't start drawing quads with the tool. Plus, it always tries to draw based on the closest geometry instead of creating new vertices and faces. I would suggest looking up Polyquilt and how it handles the creation of geomtry in empty areas. Really useful.
A question for the other guests. Do you create tutorials of your work? Would be nice to learn more about your workflows. :)
Hi guys! So many devs in one video haha!
My question is for Pablo Dobarro. Smooth brush nowadays has a red color (white before), but if you are on any other brush, holding shift will make use of the smooth brush. Why doesn't the brush color change to red to indicate you are using the smooth brush when holding shift? It has always seemed strange to me that there is no feedback that you are now using the smooth brush. Would that be something you think would be worthy to work on? along with "Ctrl" as well having some sort of feedback?
Hello Pablo and all you lovely Blender Peeps.
This is about Particles which I really enjoy playing with. I understand that this is getting a update;
In the Particles settings under Render you can have the option for Line .
This was a really nice feature before 2.8 came along but since 2.8 the option for Line is there but there are no settings to change it. (Things like Head, Tail, Trail Count and Length )
When looking on the Online Manual it doesn't even mention the Line option even though all the others are.
I would really like to see this feature and loads more getting some love for Particles.
Thoughts?
Thanks to the Blender team for all that they do <3
Hola Pablo, when are we gonna see the trim curve in blender, like the one in ZBrush ? Will it make in the version 2.84?
Hi all! Is there a tool equivalent to ZRimesher planned for Blender's sculpt roadmap?
Hi Pablos! I have a request for a brush. I work in VFX industry. I do FACS based blendshape rigs (blendshpe = maya name for shape keys). Maya and Mudbox have a brush that is crucial for whoever works with blendshapes. It is called smooth target(shapekey). What the brush does is smoothing the delta on the shapekey and brings back the mid/low frequency detail from the the base model. This tool is extremely handy I really miss this feature in blender.
One more thing. Do you guys think you can make work the sculpting tool on all the modifiers? Right now it is working correctly only with armature modifier. For all the other modifiers such as hooks it doesn't extract the rotation of the empty that is deforming the mesh.
hola guys, just wanna ask if pablo planing to improve the auto retopo tools .
imgur.com/FIgnwP7
Hi,
I submitted a proposal around two months ago, and I think these UI stuff worth more than the actual social traction of that, especially for sculpt/paint/grease users:
StylusUI - pressure sensitive & pen-optimized interface elements
It would be great to discuss about these. Thank you!
The most important:
Pressure Sensitive Sliders & Drag/Move
More pressure means more rapid value change, but if you press gently, you can fine tune. The analogue version of the Shift modifier. Basically the math is: [pressure] * [X or Y coordinate change of the pen] = [value change]. (If you used Flame, you know what I mean.) It could be not just for simple values, but also for manipulators, color picker/ball, timeline.
I know this is not related to sculpting but is there a way to bake displacement maps without multires or is this feature planned for future
Hi pablo! Will high resolution sculpting improve? Now itβs harder to work than in version 2.79.
* @Roman * I think he has plans for some new <b>mesh data structure</b> or something like that which could help with performance in high polygon sculpting