Blender Model Export - Revision history

Nozmajner: /* Using the models */ - adding note about the old lmr method removal

2016-04-02T21:13:50Z

‎Using the models: - adding note about the old lmr method removal

Mikehgentry: /* Note */

2013-03-04T02:56:20Z

‎Note

Mikehgentry: add warning about outdated material

2013-03-04T02:54:15Z

add warning about outdated material

Mikehgentry: Add to 'Blender' category

2013-03-04T02:49:42Z

Add to 'Blender' category

Luomu: /* Exporting */

2012-09-18T02:23:27Z

‎Exporting

Luomu at 02:22, 18 September 2012

2012-09-18T02:22:51Z

Luomu at 02:21, 18 September 2012

2012-09-18T02:21:51Z

Luomu at 02:20, 18 September 2012

2012-09-18T02:20:27Z

Luomu: Imported from GH wiki

2012-09-18T02:19:25Z

Imported from GH wiki

New page

Here are some notes on using [http://www.blender.org Blender] to produce Pioneer content.

== Modeling ==

=== Limitations ===

* There's no established polygon budget, but don't go crazy. It's more important to have detail levels set up correctly so you don't use a 10K mesh for something that's only visible as a dot.
* One texture per mesh. .png format. Size must be power of two (32x32, 64x64, 128x128...).

=== Units ===

Pioneer units are meters. You can keep Blender's unit display at "None", but if you switch to "Metric", remember to keep the scale at 1.

[[/images/Units.png|alt=Blender's unit configuration]]

Blender's Coordinates are as follows: X is right, Y is forward and Z is up. This is a bit different from Pioneer where X is right, Y is up and Z is backwards. You can model in default coordinates as it is possible to change the axes when exporting.

[[/images/Coords.png|alt=Coordinates]]

=== Levels of detail ===

It is important to supply LODs for your model.

Pioneer supports four levels of detail, where LOD4 is the most detailed. LOD1 is also used as the '''collision mesh''', so it should be as simple as possible but encompass the whole model.

[[/images/Lod.png|alt=Level of Detail]]

Here we have LOD1 overlapping LOD2.

=== Multiple materials ===

You can only have one material and texture per mesh. If you need multiple materials, you need to split your model into smaller parts and export them separately.

[[/images/Cockpit.png|alt=Separating the cockpit]]

Here we separate the cockpit area and export it as a new .obj so it can be given a shiny material.

== Exporting ==

Select .obj file format when exporting and use the following settings (remember to save the preset).

[[/images/Export-settings.png|alt=.OBJ Export settings]]

If you don't export normals, Pioneer will recalculate them and smoothing information will be lost.

== Using the models ==

Here is an example ship definition. First we define a "gear" model which can be called and animated as a landing gear submodel.

<pre>
define_model('gear', {
info = {
scale = 1.0,
bounding_radius = 5,
lod_pixels = {100},
materials = {'default'},
},
static = function(lod)
set_material('default', 0.8,0.8,0.8,1, .3,.3,.3,5, 0,0,0)
use_material('default')
texture('gear_diff.png')
load_obj('gear.obj')
end
})

define_model('natrix', {
info = {
scale = 3.5,
bounding_radius = 40,
lod_pixels = {50, 100},
materials = {'default'},
tags = {'ship'},
ship_defs = {
{
name='Natrix',
forward_thrust = -6e6,
reverse_thrust = 0,
up_thrust = 1e6,
down_thrust = -1e6,
left_thrust = -1e6,
right_thrust = 1e6,
angular_thrust = 15e6,
gun_mounts = {
{ v(0.000, 0.000, -9.342), v(0.000, 0.000, -1.000) },
},
max_cargo = 50,
max_laser = 1,
max_missile = 0,
max_cargoscoop = 0,
max_fuelscoop = 0,
capacity = 40,
hull_mass = 30,
price = 50000,
hyperdrive_class = 2,
}
}
},
static = function(lod)
--name, diffuse rgba, spec rgb+intensity, emit rgb
set_material('default', 0.8,0.8,0.8,1, .3,.3,.3,5, 0,0,0)
use_material('default')
texture('hull.png')
texture_glow('emit.png')
if lod == 1 then
load_obj('lod1.obj')
else
load_obj('lod2.obj')
end

--rear facing thrusters
thruster(v(1.300, 0.000, 9.769), v(0.000, 0.000, 1.000), 4.50, true)
thruster(v(-1.300, 0.000, 9.769), v(0.000, 0.000, 1.000), 4.50, true)

end,
dynamic = function(lod)
--no point in visible gear on lowest lod
if lod > 1 then
--gear animation. In Blender we have determined that the gear
--should be translated 0.5 units downwards.
local gearpos = get_animation_position('WHEEL_STATE')
call_model('gear', v(0,-0.5 * gearpos,0), v(1,0,0), v(0,1,0), 1.0)
end

--script blinking lights, dynamic equipment submodels etc. here
end
})

</pre>

@@ Line 50: / Line 50: @@
 If you don't export normals, Pioneer will recalculate them and smoothing information will be lost.
-== Using the models ==
+== Old way of using the models ==
 Here is an example ship definition. First we define a &quot;gear&quot; model which can be called and animated as a landing gear submodel.

@@ Line 1: / Line 1: @@
 == Note ==
-Note that some of the information on this page relates to the old LMR model system, and no longer applies or is being phased out.
+Note that much of the information on this page relates to the old LMR model system, and no longer applies or is being phased out.
 ----

← Older revision		Revision as of 02:54, 4 March 2013
Line 1:		Line 1:
		+	== Note ==
		+
		+	Note that some of the information on this page relates to the old LMR model system, and no longer applies or is being phased out.
		+
		+	----
		+
	Here are some notes on using [http://www.blender.org Blender] to produce Pioneer content.		Here are some notes on using [http://www.blender.org Blender] to produce Pioneer content.

← Older revision		Revision as of 02:49, 4 March 2013
Line 127:		Line 127:

	</pre>		</pre>
		+
		+	[[Category:Blender]]

@@ Line 40: / Line 40: @@
 Select .obj file format when exporting and use the following settings (remember to save the preset).
-[[File:Export-settings.png .OBJ Export settings]]
+[[File:Export-settings.png|.OBJ Export settings]]
 If you don't export normals, Pioneer will recalculate them and smoothing information will be lost.

@@ Line 12: / Line 12: @@
 Pioneer units are meters. You can keep Blender's unit display at &quot;None&quot;, but if you switch to &quot;Metric&quot;, remember to keep the scale at 1.
-[[File:Units.png|alt=Blender's unit configuration]]
+[[File:Units.png|Blender's unit configuration]]
 Blender's Coordinates are as follows: X is right, Y is forward and Z is up. This is a bit different from Pioneer where X is right, Y is up and Z is backwards. You can model in default coordinates as it is possible to change the axes when exporting.
-[[File:Coords.png Coordinates]]
+[[File:Coords.png|Coordinates]]
 === Levels of detail ===
@@ Line 24: / Line 24: @@
 Pioneer supports four levels of detail, where LOD4 is the most detailed. LOD1 is also used as the '''collision mesh''', so it should be as simple as possible but encompass the whole model.
-[[File:Lod.png Level of Detail]]
+[[File:Lod.png|Level of Detail]]
 Here we have LOD1 overlapping LOD2.
@@ Line 32: / Line 32: @@
 You can only have one material and texture per mesh. If you need multiple materials, you need to split your model into smaller parts and export them separately.
-[[File:Cockpit.png Separating the cockpit]]
+[[File:Cockpit.png|Separating the cockpit]]
 Here we separate the cockpit area and export it as a new .obj so it can be given a shiny material.