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DarkBASIC Professional Discussion / How to choose where on an object to texture (Dark shader or not)?

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CocaCola
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Posted: 15th Jan 2011 19:31
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Say I wanted a cube for dirt with grass on top. The bottom would be pure dirt, one texture.
The sides would be dirt with some grass hanging down, another texture.
And the top would be pure grass, the last texture.

That's 3 textures.

How do I choose where on an object i'd like to place the textures?
So the top texture can be on the top and not around the entire cube?

Always program as if the person maintaining your program is a psychopath that knows where you live
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Green Gandalf
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Playing: Malevolence:Sword of Ahkranox, Skyrim, Civ6.
Posted: 15th Jan 2011 19:56
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One solution would be to make the cube out of six plains so it has six limbs. Then use texture limb.

You can't easily texture separate polygons of a limb or object in DBPro - although such models do display correctly if you've made them in another package.
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Benjamin
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Posted: 15th Jan 2011 20:15 Edited at: 15th Jan 2011 20:18
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I'd use a separate texture which combines all of the required textures, and use a mesh with UV coords designed for it. Of course, that's assuming there are only one or two block types that will have different textures on different faces.

[edit] Actually that's not even necessary, as long as you have a mesh with the right UV coords you should be able to just use multitexturing to achieve what you want.
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Kira Vakaan
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Posted: 15th Jan 2011 20:37
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Multitexturing isn't even necessary. Just create an image that has the dirt in one corner, the hanging grass in another, the grass in the third, and leave the fourth unused or find some other use for it. Then make sure that the mesh is UV mapped correctly so that each face of the cube uses the appropriate section of the texture. Otherwise, like GG said, a model that uses multiple textures will display correctly in DBPro, although (to my knowledge) there is no way to do this from within DBPro.

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Benjamin
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Posted: 15th Jan 2011 20:55
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Quote: "Multitexturing isn't even necessary. Just create an image that has the dirt in one corner, the hanging grass in another, the grass in the third, and leave the fourth unused or find some other use for it."


That's what I said initially, but it's cleaner and more memory-efficient to use multitexturing.
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enderleit
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Posted: 16th Jan 2011 06:17
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I got a question about this.

If you wanted to edit the UV-coordinates would you use the VertexData commands?

- Martin Enderleit
http://sites.google.com/site/menderleit
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Green Gandalf
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Posted: 16th Jan 2011 17:03
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Yes.
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