(Image: wiki.blender.org)
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As part of the work! the animated film project “Gooseberry” the hair simulation of the open source Blender 3D package was revised. The real-time preview in the viewport benefited greatly from the development.
The simulation of hair is still a young field in computer graphics. So Disney and Pixar developed for the film “Merida” 2012 own hair system. Also in the open source feature film project called Gooseberry of the Blender Institute play hair, pardon: wool also plays a major role. In the course of work on the animated film, therefore the hair simulation of the Open Sorce 3D package Blender has been redesigned from the ground up -. It is contained in the newly released version 2.74
Hair can now use objects around collide, moreover, can be a volume-based heuristic for self-collisions interact with each individual hair. The new simulation runs stable when in a hair system occur simultaneously very short and very long hair or if your hair is very stiff. In addition, stiff hairs can now easier to comb virtual, since its basic form can be applied also bent now. That’s about useful if a hairstyle will look as if they stiffen gel or hair spray. Hair and particle systems in general, can now be copied in Blender from one object to another, which also edits as previously retained DONE combing.
. (Photo: http://wiki.blender.org)
Viewport and outliner
The real-time preview, also called viewport in OpenGL mode also shows the effect of Ambient Occlusion (AO) and Depth of Field (DoF). In Ambient Occlusion is the effect that objects shade the more mutually closer they are to each other. Depth of Field – to German: depth of field – can become evident that when shooting with a camera the entire depth of the room can not be in focus, but only a certain range that is in focus. Objects outside this range are blurred, the further they are away.
Blender takes over the focal plane of the real-time preview of the render camera settings. In version 2.74, you can directly select a point in the visual field, is focused on by moving the cursor over the removal Slider and the “E” key pressed. Then you can click on any point in the preview and Blender focuses on faces.
In the greatly expanded Outliner Blender can now display all data that are not in use. Normally, these are not saved when saving. To get around this, you can give them a so-called Fake user assign – helpful about to establish a material library. A new operator deletes all data on request without associated users; previously you had to to save the file and reload it. Since the operator combines these two steps is lost on him the undo history. In the Outliner can now whole object hierarchies in one go delete such an object including all assigned children
Cycles. Faster rendering with less memory
The render engine Cycles was in terms of speed and memory footprint optimized. The texture mapping can now be controlled from any object, image textures can be used as a ball or tube inserted objects. The new attribute Point Iness in Geometry -Node has pointed parts of a surface mesh to request a different shader as the flat areas. This is useful, for example, to represent erosion or wear that occurs reinforced edges of objects. So far, this effect could only be saved from Dirty Vertex Colors fixed in an object – the new variant can, however, also animate and saves a level of vertex colors
normal for games. and CAD
Blender 2.74 completes the second part of the support so-called Custom Normals . A normal is a vector that is perpendicular to a point on an object – it is the foundation of all shadings: By changing the direction of a normal, so also the appearance of an object changes. Modern game engines such as Unity UI4 or use of this effect extensively; but also for tools that convert CAD data into polygon meshes, working with Custom Normals to compensate for example, discontinuities at points at which abut separate patches of a surface grid.
Blender 2.74 imported Custom Normals from FBX – and OBJ data, it displays and offers two editing tools for it. The modifier Set Split Normals normal maps, for example, in parallel, which leads to a flat shading, how to use it for about cartoon renderings. Here, you may specify, thus increasing the illumination of objects changes without a light source must be moved one direction
The modifier Data Transfer transmits data of a mesh – among others. Normals , UV levels vertex groups – from an object to another. In conjunction with Custom Normals can be characterized, for example, reach a rounded look at low polygon count, what is important about computer games as before.
wear simply paint on
A new option in time system is very similar to the Point Iness in Cycles: The so-called Cavity Mask a masked texture according to the sharpness or angularity of the surrounding geometry for corners can be painted differently than flat areas. You paint on images with low color depth as 8-bit PNGs, dithering now avoids banding artifacts. Brushes follow now requested in their alignment simultaneously to the stroke of the brush and soft but with an additional and incidental portion thereof from – yet both were not possible simultaneously, the two options also are now available for masks to select
The Grease. Pencil, which was significantly expanded in the previous Blender version has been revamped again. Thus, segments can now copy between frames, data sets and levels. The thickness of a line can be changed at any selected point using the key combination Alt + S. The change between the time-tool and the eraser is now easier and the representation in the viewport to show more artifacts.
Anything else?
The preview images of materials and textures can now be saved be, which is very useful when you build a material library. In the 3D viewport you can rotate and reflect wallpapers. This saves in many cases, pre-adapt its reference frames in an image processing before they are used in Blender.
The compositor node Plane Track Deform now supports motion blur and motion Tracker Tracks filters as needed according to how soft their movement – jumping marker, making it easier to sort out. The Pie menus are now also available in the tracker.
In the game engine scripting attack in collisions at the point in space and the associated normal to. Objects, follow the paths that avoid optional tiny cracks in the movement. When recording screenshots Blender adds to request the file name, a sequential number added.
add-on for perfect rendering
The new add-on Auto Tile Size automatically selects the size of the render tiles to match the hardware used. Previously you had to change the size manually – quite frequently if you render both the CPU and on the GPU as CPU rendering rather small tiles needed, while graphics cards can fully exploit their power only for large tiles. The add-on also choose the size so that no residual thin tiles are left that are not fully exhaust the hardware
Import -. Export
The add-on Import Images as Planes automatically loads images as layers objects that are provided with the same matching materials and UVs. For Blender Cycles invites videos now. The FBX Import supports embedded images, while large objects from OBJ files show up much faster than before in Blender. The Exporter for POV-Ray is now also considered voxel data from Blender as obtained at about smoke simulations.
In addition to the changes described numerous smaller features and improvements to the user interface were entered. Developers also fixed by its own account in addition more than 180 bugs from previous versions
Blender runs on Windows, Mac OS X and Linux and is now available in version 2.74 available for download. <-.! AUTHOR -DATA MARKER BEGIN -> ( Gottfried Hofmann ) / (pek)
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