Modelling Workflow - Revision history

Andriel at 09:52, 16 March 2014

2014-03-16T09:52:18Z

← Older revision		Revision as of 09:52, 16 March 2014
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	In this article, I explain our workflow of creating a model for ~~open clonk~~ at the example of the lorry originally created by Mimmo. Also, I list things that are important to consider when modelling for use in OpenClonk.		In this article, I explain our workflow of creating a model for OpenClonk at the example of the lorry originally created by Mimmo. Also, I list things that are important to consider when modelling for use in OpenClonk.

	== Guidelines for Modelling ==		== Guidelines for Modelling ==

Andriel at 09:45, 16 March 2014

2014-03-16T09:45:53Z

← Older revision		Revision as of 09:45, 16 March 2014
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	In this article, I explain our workflow of creating a model for open clonk at the example of the lorry originally created by Mimmo.		In this article, I explain our workflow of creating a model for open clonk at the example of the lorry originally created by Mimmo. Also, I list things that are important to consider when modelling for use in OpenClonk.

			== Guidelines for Modelling ==
			*Model on the Y/Z view-plane. Models in OpenClonk appear as they do on the Y/Z plane in blender. The X-Axis goes 'into' the screen. Make sure you model with regard to these axes (The Y/Z plane is the default side view in Blender).
			*Do not use Mesh Transformations. Mesh transformations are not handled properly by the OGRE exporter, and will cause deformation in game. If you have transformations applied to an existing model, you can remove them (select the model and press alt+g, alt+s, alt+r). Caution: Avoid animating before removing transformations!
			*3D Model must be Three-Dimensional. The 3D mesh must have length on all axes. Making a perfectly flat object on only two axes will cause it to not appear in-game. To fix this, move a vertex so the mesh has length on all axes.
			*Avoid edges with more than two faces connected to them. Edges with more than two faces will cause shading errors in game. An easy way to circumvent this is to separate the third face from the edge, so it is close to the original edge, but not connected.
			*What features work with the OGRE format? Not all of the features listed in Blender will affect an exported 3D OGRE mesh. For a full list of compatible features, visit: http://code.google.com/p/blender2ogre/#Blender_to_Ogre_Exporter_Features

	== Sketch ==		== Sketch ==

Maddin at 15:20, 5 March 2010

2010-03-05T15:20:51Z

← Older revision		Revision as of 15:20, 5 March 2010
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	So when is a model egible of having a normal map. First there is to say that at this point of development we can not even say if we will be able to use normal maps. In general, creating normal maps for models only makes sense for those which have organic, round parts where too many polygons would need to be used. So, for blocky buildings it's normally not necessary - more for living creatures with one ([http://www.blender.org/development/release-logs/blender-246/render-baking/ Blender: example]) enclosing mesh.		So when is a model egible of having a normal map. First there is to say that at this point of development we can not even say if we will be able to use normal maps. In general, creating normal maps for models only makes sense for those which have organic, round parts where too many polygons would need to be used. So, for blocky buildings it's normally not necessary - more for living creatures with one ([http://www.blender.org/development/release-logs/blender-246/render-baking/ Blender: example]) enclosing mesh.

			Here is also a free to use tool with which easily all kinds of maps can be created: [http://www.crazybump.com/ CrazyBump]

Newton: /* Texturing */

2010-02-27T15:24:33Z

Texturing

← Older revision		Revision as of 15:24, 27 February 2010
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	[[File:lorry_tex.png\|256px]]		[[File:lorry_tex.png\|256px]]
	[[File:lorry_uv.png\|256px]]		[[File:lorry_uv.png\|256px]]

			Note that PNG textures can contain alpha. This is how transparency (imagine leaves on trees) is realized in OpenClonk.

	== Animation and normal maps ==		== Animation and normal maps ==

Newton: /* UV unwrap */

2010-01-17T16:04:28Z

UV unwrap

← Older revision		Revision as of 16:04, 17 January 2010
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	== UV unwrap ==		== UV unwrap ==
	After having created the final low-poly model, create a good and clear UV map. The quality of the texture map (, normal map etc) strongly depends on the quality of this work, do not underestimate this step. However, I assume that you know how to unwrap a model ([http://www.blender.org/documentation/htmlI/x5336.html Tutorial for Blender]).		After having created the final low-poly model, create a good and clear UV map. The quality of the texture map (, normal map etc) strongly depends on the quality of this work, do not underestimate this step. However, I assume that you know how to unwrap a model ([http://www.blender.org/documentation/htmlI/x5336.html Tutorial for Blender]).
	You can map faces that should look the same - like for example each of the 4 front wheels of the lorry - to the same position in the UV map.		However, here are a few tips that are especially valid for OpenClonk:
			* Mark the seams preferably on the backside of the model. E.g. if there is a cylinder, mark the seam on the side that is not seen ingame. Then the texturer doesn't need to worry (so much) about tileability.
			* Regions of the model which are connected in the model should be connected in the uv map too as long as the uv mapping doesn't distort the whole thing (too much).
			* Try to arrange the uv regions in a way that regions in the model which are upright are upright and not distorted in the uv map too. This helps the texturer a lot when he want to apply textures with a regular pattern like bricks.
			* You can map faces that should look the same - like for example each of the 4 front wheels of the lorry - to the same position in the UV map.

	[[File:Lorry_uv1.png\|600px]]		[[File:Lorry_uv1.png\|600px]]

Newton: /* Texturing */

2009-09-18T00:32:42Z

Texturing

← Older revision		Revision as of 00:32, 18 September 2009
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	[[File:lorry_tex.png\|256px]]		[[File:lorry_tex.png\|256px]]
	[[File:lorry_uv.png\|256px]]		[[File:lorry_uv.png\|256px]]

	~~[[File:lorry.obj]]~~

	== Animation and normal maps ==		== Animation and normal maps ==

Newton: /* Texturing */

2009-09-18T00:31:44Z

Texturing

← Older revision		Revision as of 00:31, 18 September 2009
Line 42:		Line 42:
	[[File:lorry_tex.png\|256px]]		[[File:lorry_tex.png\|256px]]
	[[File:lorry_uv.png\|256px]]		[[File:lorry_uv.png\|256px]]

			[[File:lorry.obj]]

	== Animation and normal maps ==		== Animation and normal maps ==

Newton: /* Animation and normal maps */

2009-09-18T00:28:59Z

Animation and normal maps

← Older revision		Revision as of 00:28, 18 September 2009
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	After you created a UV map, you can add the animations if there are any. Additionally, if the model is egible for having a normal map, you can create a high-poly model of the lorry where you actually do model even the little geometric details. But keep in mind, to be able to bake a normal map with a high-poly model, the high- and low-poly model must have the same geometry ([http://blenderartists.org/forum/showthread.php?t=138194 Tutorial for Blender]). In Blender, there is a option called "multires" which allows you to create several models in different detail levels based on one low-poly model and it's geometry.		After you created a UV map, you can add the animations if there are any. Additionally, if the model is egible for having a normal map, you can create a high-poly model of the lorry where you actually do model even the little geometric details. But keep in mind, to be able to bake a normal map with a high-poly model, the high- and low-poly model must have the same geometry ([http://blenderartists.org/forum/showthread.php?t=138194 Tutorial for Blender]). In Blender, there is a option called "multires" which allows you to create several models in different detail levels based on one low-poly model and it's geometry.

	So when is a model egible of having a normal map. First there is to say that at this point of development we can not even say if we will be able to use normal maps. In general, creating normal maps for models only makes sense for those which have organic, round parts where too ~~much~~ polygons would need to be used. So, for blocky buildings it's normally not necessary - more for living creatures with one ([http://www.blender.org/development/release-logs/blender-246/render-baking/ Blender: example]) enclosing mesh.		So when is a model egible of having a normal map. First there is to say that at this point of development we can not even say if we will be able to use normal maps. In general, creating normal maps for models only makes sense for those which have organic, round parts where too many polygons would need to be used. So, for blocky buildings it's normally not necessary - more for living creatures with one ([http://www.blender.org/development/release-logs/blender-246/render-baking/ Blender: example]) enclosing mesh.

Newton: /* Texturing */

2009-09-18T00:27:28Z

Texturing

← Older revision		Revision as of 00:27, 18 September 2009
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	== Texturing ==		== Texturing ==
	As the model and texture for the lorry is already completed, I can show it to you here:		As the model and texture for the lorry is already completed, I can show it to you here:

	[[File:lorry_render.png\|256px]]		[[File:lorry_render.png\|256px]]
	[[File:lorry_tex.png\|256px]]		[[File:lorry_tex.png\|256px]]
	[[File:lorry_uv.png\|256px]]		[[File:lorry_uv.png\|256px]]


	== Animation and normal maps ==		== Animation and normal maps ==

Newton at 00:18, 18 September 2009

2009-09-18T00:18:44Z

← Older revision		Revision as of 00:18, 18 September 2009
Line 35:		Line 35:

	[[File:Lorry_uv2.png\|600px]]		[[File:Lorry_uv2.png\|600px]]

			== Texturing ==
			As the model and texture for the lorry is already completed, I can show it to you here:
			[[File:lorry_render.png\|256px]]
			[[File:lorry_tex.png\|256px]]
			[[File:lorry_uv.png\|256px]]


	== Animation and normal maps ==		== Animation and normal maps ==