Texture Emission with an Image
Posted: Mon Dec 30, 2013 11:53 pm
I tried using this as a background for windows on a spacestation looking out into space ... there's just a huge vertical plane out there in "space" with a beautiful picture of a planet etc and I wanted to glow a bit to give a somewhat more realistic impression.
To test this, I just made a simple blender scene, a simple plane, rotated 90° on x to have it vertical and the camera just more or less frontally on it.
If I render this in Blender, the image is upside down on the plane and cropped .. i only see a small part, zoomed. I unwrapped the plane, thinking textures for texture emissions work the same way, but alas, I am wrong. Moving around the planes UV mesh does nothing. After a bit of trial and error I found the only thing that did something was the ScaleX parameter of the Image Texture node that feeds into the emsission texture node. But that was difficult to handle and just caused it to get tiled and still not in the right rotation.
So how are Textures for textureemission properly scaled, aligned, moved etc as done with normal UV mapping?
PS: the same file in Standalone behaves somewhat different .. the image is proplery on the plane, not upside down etc
To test this, I just made a simple blender scene, a simple plane, rotated 90° on x to have it vertical and the camera just more or less frontally on it.
If I render this in Blender, the image is upside down on the plane and cropped .. i only see a small part, zoomed. I unwrapped the plane, thinking textures for texture emissions work the same way, but alas, I am wrong. Moving around the planes UV mesh does nothing. After a bit of trial and error I found the only thing that did something was the ScaleX parameter of the Image Texture node that feeds into the emsission texture node. But that was difficult to handle and just caused it to get tiled and still not in the right rotation.
So how are Textures for textureemission properly scaled, aligned, moved etc as done with normal UV mapping?
PS: the same file in Standalone behaves somewhat different .. the image is proplery on the plane, not upside down etc