In this blog, I will create a realistic dog skin with a new tool Unwrap UVW. I have learned how to use it in my independent learning module, and as we know there are not all the objects in the world are regular, so this tool may be a very useful tool when we build a irregular model, such as this dog I have made, because it is impossible to find a exactly same size and shape material for the model when we edit the material for the object, with this tool we can peel the dog model to get a same size shape of skin. But to edit the material on this skin we have to use the image edit software to help like Photoshop or illustrator, and it might a little bit harder part.
So carry on the dog model I have created in last blog, select it and go to the modify panel on the right and find the Unwrap UVW tool in the list.
Here I found a big issue after I created all the skin which was the Unwrap UVW had to be put after skin the bones, because if I did the bone first then the material would not success, and I had to repeat every steps thing again. Here I will create the material directly.
When you are choosing the Unwrap UVW, roll down the menu, check the show map seam, and there is some green lines come out on the model, which will be the default borders of the skin, but I won’t use it, because those will divide the whole skin into pieces that is not what I want.
In order to making a whole skin I have to create a border myself, go to choose the face level, and roll down the menu to find the Point and Point Seam. With this tool I can connect the border from point to point, but it is hard to design a border to unfold a good skin.
The best one I have done was the border from the paw to the middle line on the bottom of body which was from the mouth to the tail, and then cut the ear out along the border of the ear.
After that select the entire surface, click the Pelt button and check it on the X, Y, and Z axles by clicking the Align X, Y and Z buttons.
Click Edit Pelt Map down the bottom of the menu, there is a new window and a map comes up, they are the skin map and edit panel, as you can see, there are a lot of points around the dog, which are the position all the border will go, but they are not on the right position when they just come up, so I have to roll the to the right position with the second tool on the left corner.
To scale them up with the third tool to make a bigger area which should be big enough to allow the skin unfolded very well.
Click the Simulate Pelt Pulling continually. The skin will be unfolded time by time. Keep on clicking until the entire border is unfolded.
There are too many points on the head part to unfold down, so there is another tool to solve this problem, the Relax Tool, go to the tool bar up the map and click tool-Relax Tool,
and I just use the default value, first time choose more intensive part in the middle of the head area, and click the apply button, and then choose the bigger area, go on and on until they are relaxed and no two points covered each other.
This process is not easy to success once, it should be tried time by time until I satisfied with it.
I just delete the ear part, I will not concentrate on the ear part, it will not affect the whole map.
When you make a good skin you can go to the render UV to render it out. And save it as a jpg picture.
Edit this picture with Photoshop, and I will draw a skin on this map inside the border. Before I do that, I have to invert the whole map because the background is black and the map is white will not easier for me to edit this image.
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Right click the layer to unlock it, add other on new layer and cut the head of dog image which I fallowed to create the dog, and copy other half head. To the other side, and then cut a piece of body skin on the dog image.
after that change all layers as multiply layers, so I can see the map at same time.
Next I will use the clone stamp tool to fill out the entire map, click the Alt key to pick the area you what to copy then release it, and click somewhere to draw a same picture.
After finish fill out the entire map, I will use the Smudge tool to smudge some of the detail parts, like the mouth and eyes part (I took it off).
After finish all the skin, I just need to save the new layer without the map border.
Go back to the 3D studio max and choose a material slot, and input this dog skin material.
So carry on the dog model I have created in last blog, select it and go to the modify panel on the right and find the Unwrap UVW tool in the list.
Here I found a big issue after I created all the skin which was the Unwrap UVW had to be put after skin the bones, because if I did the bone first then the material would not success, and I had to repeat every steps thing again. Here I will create the material directly.
When you are choosing the Unwrap UVW, roll down the menu, check the show map seam, and there is some green lines come out on the model, which will be the default borders of the skin, but I won’t use it, because those will divide the whole skin into pieces that is not what I want.
In order to making a whole skin I have to create a border myself, go to choose the face level, and roll down the menu to find the Point and Point Seam. With this tool I can connect the border from point to point, but it is hard to design a border to unfold a good skin.
The best one I have done was the border from the paw to the middle line on the bottom of body which was from the mouth to the tail, and then cut the ear out along the border of the ear.After that select the entire surface, click the Pelt button and check it on the X, Y, and Z axles by clicking the Align X, Y and Z buttons.
Click Edit Pelt Map down the bottom of the menu, there is a new window and a map comes up, they are the skin map and edit panel, as you can see, there are a lot of points around the dog, which are the position all the border will go, but they are not on the right position when they just come up, so I have to roll the to the right position with the second tool on the left corner.
To scale them up with the third tool to make a bigger area which should be big enough to allow the skin unfolded very well.
Click the Simulate Pelt Pulling continually. The skin will be unfolded time by time. Keep on clicking until the entire border is unfolded.
There are too many points on the head part to unfold down, so there is another tool to solve this problem, the Relax Tool, go to the tool bar up the map and click tool-Relax Tool,
and I just use the default value, first time choose more intensive part in the middle of the head area, and click the apply button, and then choose the bigger area, go on and on until they are relaxed and no two points covered each other.This process is not easy to success once, it should be tried time by time until I satisfied with it.
I just delete the ear part, I will not concentrate on the ear part, it will not affect the whole map.
When you make a good skin you can go to the render UV to render it out. And save it as a jpg picture.
Edit this picture with Photoshop, and I will draw a skin on this map inside the border. Before I do that, I have to invert the whole map because the background is black and the map is white will not easier for me to edit this image.
`
Right click the layer to unlock it, add other on new layer and cut the head of dog image which I fallowed to create the dog, and copy other half head. To the other side, and then cut a piece of body skin on the dog image.
after that change all layers as multiply layers, so I can see the map at same time. Next I will use the clone stamp tool to fill out the entire map, click the Alt key to pick the area you what to copy then release it, and click somewhere to draw a same picture.After finish fill out the entire map, I will use the Smudge tool to smudge some of the detail parts, like the mouth and eyes part (I took it off).
After finish all the skin, I just need to save the new layer without the map border.
Go back to the 3D studio max and choose a material slot, and input this dog skin material.
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