El Brujo de la Tribu

Hi. Today I'm going to deal with a new node: Vector Transform. It allows to change coordinates between different spaces, World, Object or Camera. If you want further details about coordinate spaces you can check Blender 3D: Noob to Pro . This node offers new posibilities for materials and textures. Every texture in cycles has a Vector input to set the coordinate space for texturing and there is a Texture Coordinate node available which offers several possibilites. By default Generated coordinates are used. Before this node appears in Blender 2.69, we have some problems with textures in Cycles. If we have several objects in our scene with different sizes and they are sharing the same material, with any kind of texture or pattern in it, it is very difficult to set the appropiate scale factor to get the same size of the pattern/texture in all of them. Look this example using Generated coordinates, which uses the Global / World space: All these objects have scales a...

Hi everybody. Today I'm going to show to you how to make a stars world for cycles. Blender internal has an option in the world settings to create this, but cycles engine hasn't. So I have created a procedural world including galaxies too. First of all we need a texture to show stars. I have taken one node setup from this awesome apple material explained here . It is well explained by its author. It is called Big Dots . Then I need a noise texture to simulate galaxies in astronomy pictures. I have used the following. It is called Noise0Pattern : The next step is setting the noise texture on the world. I have used two Noise0Pattern groups, one for blue/pink light, and another for yellow light. I have also used alpha to be uses as factor for mixing both textures. This is what I have done: I have tweaked the pink/blue color ramp node to establish high and low density areas of stars in the world. After this I can add stars with different sizes and intensiti...