Tag Archives: Blender 3D

Using Blender 3D screencast keys addon.

The new Screencast Key Status Tool have been added to this new release 2.60 .

You can find it in part of the Blender AddOn Distribution. Just go to User Preferences -> Add-Ons section.

Please see the picture below:

blender screencast key

Press now the N key and this will activate in the tab View3D -> Properties panel -> Screencast Keys.

blender screencast key

Press now the Start Display button and you see this in action.

blender screencast key

The keys that are pressed to show up in the 3d viewport.

Posted in Blender 3D. Tagged with .

Blender 2.5 – Indirect Lighting

I will present the technique of indirect light in Blender 3D.

What exactly is indirect light ?

Lighting is mixed from direct sources and indirect reflection.

Lighting provided by reflection usually from wall or celiling surfaces.

In daylighting, this means that the light coming from the sky or the sun is reflected on a surface.

In a way: the reflected light is called indirect light.

I’ll start with my example plan divided into four.

I selected the four squares in the center and we extruded as shown below:

indirect light image

You will need two materials with which to work.

One will be based and the other will apply the indirect light.

In the figure below, it shows how to add such material in the Material tab.

indirect light image

The base material I have called Base.

indirect light image

I added a material which we have called indirect-light.

This material is a blue color.

In the picture below you can see the two materials and rendering.

indirect light image

As you can see there is no effect of indirect lighting.

For this I will make some additional settings.

Look at the picture below. Indirect Lighting must be enabled in the World tab.

indirect light image

Here the effect of indirect light with some settings made make by me.

indirect light image

This is a short tutorial about setting indirect light.

Posted in Blender 3D. Tagged with .

Addons on Blender 2.5 – Installing an addon using Python

Start Blender 3D version 2.5 or higher.

At the top, choose File menu and then User Preferences … or press keys Ctrl+Alt+U

See the picture below:

Click the button Install Add-on …

A dialog will appear and you can select the script with that addon.

In this case his named free-tutorials2.org.

The script will be found in the User Preferences window on Camera Add-Ons section.

See image:

Let’s talk now about the script:

The source code does not have too many issues that can not be understood.

It is divided into three main parts: the first addon declaration, the second is to declare the two classes and a third room for registration.

The source code is not complete. It is made only for illustration.

It is good to read and on this wiki

The GUI result is show in next image.

I will return with a more complex tutorial on this topic.

Posted in Blender 3D, Programming, Python. Tagged with , , .

Unwrapping a mesh under Blender 2.5

The Blender 2.5 has a number of options available to map the UVW coordinates of an object.

The “UVW map” is a result of process.

This result is essentially a set of co-ordinates use to tell them how a texture image is supposed to be applied over the surfaces of a model.

Go on UV Editing, select the object ( the cube in this case) and enter on Edit Mode.

All keys will be pressed with the mouse cursor in the area 3D View, where the object is edited.

Now if you press key U and select first option you will see this …

UVW map simple

… if you select Smart UV Project, you will see the second image.

UVW map smart project

The best approach is to use a systems of cuts, referred to as Seams, are specially marked edge elements.

See in next image , how unwrapping process knows to split and make the UVW map.

In this case. select some edges and press Ctr+E select option Mark Seam.

I select edges from a face , and result is this:

UVW map seam

This is just a simple example , you can find more options.

Posted in Blender 3D. Tagged with .

Aligning normals in Blender 3d: Ctrl + A

Sometimes when the model in Blender, normals go haywire.

Any attempt to fix the normals recalculated normals recalculated outside or inside, fail.

This is the case exemplified in the image below

Just go on Object Mode select object and press keys Ctrl + A .

In that case you’ll be forced to reset transformations ( Ctrl + A -> Scale and Rotation to ObData)

See next image:

Next go on Edit Mode by pressing TAB key , and you will see the result.

… and I solved the problem

Posted in Blender 3D. Tagged with .