El Brujo de la Tribu

Hi all friends! Hola a todos! The vignetting is a technique which simulates a kind of effect caused by traditional camera lens on its pictures. It consists of the corners of the image appear dimmed . D igital cameras mimics this effect to give an artistic touch to the photo . El viñeteado es una ténica que simula efectos producidos por la lente en cámaras tradicionales en sus fotos. Consiste en que las esquinas de la imagen aparecen oscurecidas. En las cámaras digitales se imita este efecto para dar un toque artístico a la foto. You can create a vignetting effect in Blender through compositing. I'm going to take a render and create this effect through the node editor. En Blender se puede crear un efecto de viñeteado a través de la postproducción (compositing). Voy a tomar un render y con ayuda de nodos crearé el efecto. Firtsly I have placed an Ellipse Mask node for creating the rounded shape. You can see the Viewer output on the right bottom corner. ...

Hi everybody. Today I'm going to show you how to make a realistic plastic material like this: Firstly, I recommend you to see this video tutorial about how to setup a SSS node in Cycles made by @pauljs75. The overall setup of the yellow plastic is as follows: I have used two SSS nodes to get my base SSS material. I have used the method explained in the video tutorial. The color of the SSS node is the base color of the shader. The color of the RGB node is the scattered color. (I should have created a node group with this setup) Also I have added a diffuse node to reduce the noise of my material. Finally I have added some basic glossiness to my material The red plastic is slightly different. Here you can see the node detail: As the SSS materials are very noise, I strongly recommend you to use compositing and bilateral blur nodes to get a good render. You can find some video tutorials explaining this on CGCoockie: Using Blender’s B...

El próximo 8 de abril de 2014 Microsoft va a dejar de dar soporte técnico a Windows XP ¿Qúe significa ésto? Si en su hogar o en su empresa sigue utilizando todavía Windows XP es necesario que vaya pensando ya en un cambio de sistema operativo, bien a una versión posterior de Microsoft o bien a otro tipo de sistema operativo, por ejemplo uno basado en Linux como Ubuntu. Estas son las razones por las que debe plantearse ya esta cuestión: Los programas que esté usando dejarán de tener versiones y actualizaciones para Windows XP. Es sólo cuestión de tiempo que dejen de tener en sus páginas web versiones de los programas para él. Muchos programas de software libre ya han anunciado que sus próximas versiones no estarán disponibles para XP, por lo que tendrá que trabajar con programas antiguos. Si se compra un periférico nuevo o cualquier dispositivo que conecte con un ordenador, los fabricantes ya no crearán drivers para XP. Ratones, impresoras o cámaras de fotos nuevas le indicarán que s...

Hi everybody. In this article I'm going to write brief tips that I use in my cycles renders. I hope they will be useful for you. This article is in process. Hola a todos. En este artículo voy a ir poniendo breves consejos que yo mismo utilizo en mis renders. Espero que os sean útiles. Este artículo está en elaboración. For creating a plastic or ceramic material use a mixture between a Diffuse node and a Glossy node.   Para crear un material de tipo plástico o cerámico usa una mezcla entre un nodo difuso (Diffuse) y un nodo de brillo (Glossy) For creating a metal material use a mixture between two Glossy nodes. Para crear un material de tipo metal usa una mezcla (Mix) de dos nodos de brillo (Glossy) In the real world there are not completely diffuse materials. A lmost all materials reflect light at gracing angles at least (for example, paper). So use always some kind of reflection. En el mundo real no hay materiales completamente difusos. Casi todos los...

Hi everybody! Today I'm going to show you how to make a red eroded coral material in blender / cycles: ¡Hola a todos! Hoy voy a mostraros como hacer un material de tipo coral rojo erosionado con blender y cycles: This is the overview of the material: Esta es la visión general del material: This is the zoom on the left hand side in the material: Este es el zoom de la parte izquierda del material: I have mixed three Voronoi Textures to get the bumping of the material (see turquoise frame). I have used a Value node and two Math node with the Multiply option to centralize the scaling my textures. If the value of the Value node is changed, all the textures changes in the same proportion. By plugging these textures in Bump nodes and chaining them I get a kind of eroded surface. Regarding the purple frame, I have used two of the Voronoi textures to find the holes on the surface and set a different color for them. They are the white spots of the coral. He...

Hi every body. Today I'm going to show you a scratched metal material: (1) Preview of the node setup explained in this article  (2) Preview of the node setup with parameters modified for the last render below This is the basic node setup of the material: As you can see, the material is a simple Glossy node wich is added a scratched bumping. You can change the Glossy node by another metal or a material of you own. The main element of the Scratched Pattern node group is a tweaked Voronoi texture, which produces a streaky pattern: This is the Map Range node group included: This tweaked Voronoi texture produces some spots painted on your texture. The number of spots depends on the Threshold parameter (1.0 for all spots, Mapping Vector node scaling the texture in this way: The Scratched Pattern node group contains eight groups of  Mapping-Tweaked Voronoi nodes. This is the comparison of one Tweaked Voronoi or eight of them with differ...

Hi. I have been testing the CGTrace's Material Ball : Carpaint: Colombia Gold:  Blood: Its author, Victor Borges says that it is similar to other testing scenes used with Mono software. I really like the color strips beside the ball and the scene loads and renders faster than @Tuqueque's Blender Ball. However I think it can be improved. I will continue making tests and post them here in this article. These are more screenshots with the scene modified: Carpaint : Colombia Gold : Blood: Colored Glass: Terracotta : Brown Leather: These are the tweaks I have done on the blendswap scene: Recalculating all normals Changing Diffuse materials to roughness 0.1, so they use Oren-Nayard algorithm Changing Color light to Blackbody 6500 (like a fluorescent or white LED light) Adding a Cube which wraps all the objects, so the black world is not reflected. Its material is Diffuse RGB(0.6, 0.6, 0.6) and roughness 0.1. Bye.