Blender 2.8 Texture Painting Tutorial: Stencil and Alpha Mask

hey guys this is a new one for blender 2.8 about texture painting with stencil and alpha for masking I used the same mesh that are used in the previous part where we just mapped an image to a particular face of the UV Islands but now I'm unwrapping the whole mesh by using smart UV project which is a bit quick and dirty but for texture painting and this is what we are going to do now it should work pretty nice but first of all let's go to the shader editor and define a base color using the principal shader and this will be the background color of the mesh okay I will stick to this one and then I duplicate the principal shader because I want to have a mix of two shaders I want to have a painted overlay so I turn this again to white and the second shader will be the background so what we have to add is a mix shader' node and then I drag these psdf outputs of the principal shader to the inputs of the mix shader' node and this is my purpose that the upper one is the second shader in the mix shader' node because the second one is going to overlay the first one you will see this in action when we add the Alpha mask okay but now let's go ahead and turn to texture paint and now can add a texture slot I do this for the base color and I name this yeah why not base color and the resolution is set to 2k this should be enough and the back color and this is important as set to alpha zero this means we will have a transparent background for the image and we need this because we are going to use this as a mask okay let's move on this is by accident added to the base color input of the second shader we have to add this to the first one because for this shader we want to paint textures and the Alpha output of this node a drag to the factor of the mix shader' node and this means every alpha pixel is masked we don't see it in the rest and we can paint now onto this mesh and this means we are going to paint onto the base color image that we just added so paint in some white parts just by pressing the left mouse button and have a look at this this is very interesting for the parts that we painted the first shader is used so when I turn the metallic of the second shader to a higher value for example like so you can see that this doesn't affect the first shader and this is the great thing of this mix shader' note you can use two shaders or as many shaders as you like and create kind of layers that you might know for example from substance painter so play around now with the settings of these two principal shaders roughness metallic the whole PBR settings and you can see there are totally independent okay but now we added this ugly paint but how to remove this very simple you go to your brush and choose erase alpha and just yeah you erase it isn't that great and now you get the idea we can paint in everything we like so let's add a texture here to the brush and I press the button open to select an image I created this using Photoshop a white text on a transparent background very simple and now we'll move the stencil to this location then I press the shift key and the right mouse button to scale it up and now can go ahead and paint this onto the mesh oh but first we have to set the brush again to mix and now we can paint this in okay pretty nice now I remove this stencil and then we can adjust the shader settings for this texture that we painted the roughness the metallic or the specular as you like and I would like to paint another texture onto this mesh and for this I select the image that we used in the previous part so I add this as another stencil I call this TX sign which is the fire warning and on the textures tab I open the image you can download this for free from textures calm the link is added to the description and again I use this as a stencil and paint this onto the mesh very simple looks pretty good I remove the stencil again and then you have a look at the texture that we painted it is very rough it almost looks like fabric at least the warning sign and this is due to the roughness that we defined in the first principle shader and of course the other settings as well for example the metalness but this can be changed and the same is true for the second shader so go ahead and turn this again to a kind of plastic material and as you can see this doesn't affect the first shader the texture okay guys that's it again I hope you like this texturing and texture painting tutorials for blender 2.8 if you do then don't forget to subscribe to this channel if you haven't already if you like to support me then be my patron this really helps me creating my tutorials thanks for these guys thanks for watching and I see you in the next one

Channel: Jayanam

Views: 61,854

Keywords: blender 2.8 tutorial, jayanam, blender 2.8 stencil painting, blender texture painting, blender 2.8 texturing, blender 2.8 texture painting, blender 2.8 stencil, blender 2.8 alpha texture, blender 2.8 transparent texture, blender 2.8 transparent material, blender transparent background, blender transparent material, blender 2.8 eevee texturing, blender 2.8 eevee, blender 2.8, blender 2.8 texture painting tutorial, blender texture painting tutorial

Id: VnfTSXWF21A

Length: 5min 53sec (353 seconds)

Published: Thu Nov 28 2019