Generated Texture Coordinate works not as expected when used with curve and boolean modifier #53622

New Issue

Marc Zbinden · 2017-12-23T19:58:04+01:00

Marc Zbinden commented

2017-12-23 19:58:04 +01:00

System Information
Windows 10
Geforce GTX980

Blender Version
stable release: 2.79 5bd8ac9
experimental: 2.79 5e28b71

Short description of error
Generated texture coordinate changes when using boolean modifier

Exact steps for others to reproduce the error
I used the Curve modifier on meshes for building Brickwalls.
I added Textures with the Bricktexture with the generated texture coordinate in Cycles.
This worked until I used the boolean modifier to cut holes for windows and doors.
In the File you can see that the texturecoordinate changes when the boolean mesh touches the wall.
Even if it's only partly.
I'm not sure if this is an error, but I don't know how I could do this otherwise.
I tried to apply the modifiers but then the texturecoordinate also looses the shape of the curve.
It's otherwise possible to use uv coordinates instead but then the texturespace is limited by the size of the mesh.
Curve boolean generated Texture.blend

**System Information** Windows 10 Geforce GTX980 **Blender Version** stable release: 2.79 5bd8ac9 experimental: 2.79 5e28b71 **Short description of error** Generated texture coordinate changes when using boolean modifier **Exact steps for others to reproduce the error** I used the Curve modifier on meshes for building Brickwalls. I added Textures with the Bricktexture with the generated texture coordinate in Cycles. This worked until I used the boolean modifier to cut holes for windows and doors. In the File you can see that the texturecoordinate changes when the boolean mesh touches the wall. Even if it's only partly. I'm not sure if this is an error, but I don't know how I could do this otherwise. I tried to apply the modifiers but then the texturecoordinate also looses the shape of the curve. It's otherwise possible to use uv coordinates instead but then the texturespace is limited by the size of the mesh. [Curve boolean generated Texture.blend](https://archive.blender.org/developer/F1505771/Curve_boolean_generated_Texture.blend)

Marc Zbinden commented

2017-12-23 19:58:04 +01:00

Added subscriber: @MarcZbinden

Philipp Oeser commented

2018-01-04 20:08:31 +01:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2018-01-04 20:08:31 +01:00

Changed status from 'Open' to: 'Archived'

Philipp Oeser closed this issue

2018-01-04 20:08:31 +01:00

Philipp Oeser self-assigned this 2018-01-04 20:08:31 +01:00

Philipp Oeser commented

2018-01-04 20:08:31 +01:00

This is not only a problem of the curve or boolean modifiers specifically.
(It could also be a bend with a decimate afterwards e.g)
So afaik this is due to a constructive/generating modifier after a deforming modifier

when you only have a deform modifier it will still use to coordinates from the original space (thats why the bricks 'stick' nicely)
once a constructive modifier comes into play afterwards we have a new boundingbox/space and thats the basis now.
(Having a hard time finding the right words atm. but to sum it up: I think this is expected behaviour and I wouldnt consider this a bug)

However you can still kind of make your case possible [a lot less convenient though] by moving the boolean above the curve modifier [its less intuitive to place the boolean object right then...]
This way all geometry modification (array/boolean) takes place in a lined up space, and the deforming comes last
T53622_workaround.blend

This is not only a problem of the curve or boolean modifiers specifically. (It could also be a bend with a decimate afterwards e.g) So afaik this is due to a constructive/generating modifier after a deforming modifier when you only have a deform modifier it will still use to coordinates from the original space (thats why the bricks 'stick' nicely) once a constructive modifier comes into play afterwards we have a new boundingbox/space and thats the basis now. (Having a hard time finding the right words atm. but to sum it up: I think this is expected behaviour and I wouldnt consider this a bug) However you can still kind of make your case possible [a lot less convenient though] by moving the boolean above the curve modifier [its less intuitive to place the boolean object right then...] This way all geometry modification (array/boolean) takes place in a lined up space, and the deforming comes last [T53622_workaround.blend](https://archive.blender.org/developer/F1700301/T53622_workaround.blend)

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Generated Texture Coordinate works not as expected when used with curve and boolean modifier #53622