Looking for a way to crop a texture to the visible part with a node
polycounter lvl 5
Hi Guys,
I haven't found anything on this yet in the forums, so I was thinking I might post it.
I'm currently working on my final project for my Bachelor and I have run into a problem...
on the UE Aks Forum thingy nobody answers, so I thought I might ask here since you guys are a lot more active.
Now to the Problem:
I have build myself a Vertex Painting Material to blend 5 diffrent texture sets (PBR Metallic Roughness) on one mesh. Since the Unreal Engine only supports up to 16 Texture Samples per Material, we combined 4 of those Textures into 1, by doubling the texture size from 1k to 2k resolution. We then went ahead and created a graph that would zoom in and frame the particular texture. (See in the picture below)
Note: the rest of the texture is moved outside the 1:1 UV space
Since the rest of the texture is just moved to the outside of the 1:1 UV space, I have a diffrent texture displaying as soon as I have some UV's laying outside of the 1:1 UV Space.
Of course I could just cut eges at those points and then map them into the 1:1 UV Space, but I thought there might be a way to crop a texture in the Material Editor in UE itself.
I have already found the TextureCropping Node but I can't get it to work *shrug*
So if somebody knows a way to fix this, or could explain the TextureCropping Node to me, that would be really great.
Thanks for your help
ChaosPanda
PS: Sorry for the Wall of Text :poly103:
I haven't found anything on this yet in the forums, so I was thinking I might post it.
I'm currently working on my final project for my Bachelor and I have run into a problem...
on the UE Aks Forum thingy nobody answers, so I thought I might ask here since you guys are a lot more active.
Now to the Problem:
I have build myself a Vertex Painting Material to blend 5 diffrent texture sets (PBR Metallic Roughness) on one mesh. Since the Unreal Engine only supports up to 16 Texture Samples per Material, we combined 4 of those Textures into 1, by doubling the texture size from 1k to 2k resolution. We then went ahead and created a graph that would zoom in and frame the particular texture. (See in the picture below)
Note: the rest of the texture is moved outside the 1:1 UV space
Since the rest of the texture is just moved to the outside of the 1:1 UV space, I have a diffrent texture displaying as soon as I have some UV's laying outside of the 1:1 UV Space.
Of course I could just cut eges at those points and then map them into the 1:1 UV Space, but I thought there might be a way to crop a texture in the Material Editor in UE itself.
I have already found the TextureCropping Node but I can't get it to work *shrug*
So if somebody knows a way to fix this, or could explain the TextureCropping Node to me, that would be really great.
Thanks for your help
ChaosPanda
PS: Sorry for the Wall of Text :poly103:
Replies
http://udn.epicgames.com/Three/TerrainAdvancedTextures.html#Texture%20Packing:%20Implementing%20large%20texture%20tile%20sets
I will check that out
Due to lack of time I resolved the problem by adding extra edges. The Link Provieded above seems to be about the same as what I did to frame the Texture, it doesn't actually crop it