1) " Flip Direction" button in the " ToolShelf" inverts selected faces. In this mode meshes (faces and polygons) appear double sided because it's relatively straightforward for the application to render a materials simple flat colours to both sides of a face (shown below).įlip or invert the face normal's so they point 'inwards'. The default " Viewport Shading" mode in Blender is " Solid". The following assumes the mesh has been UVW mapped and textured, if it's not then activate " Face Normals" so it's easier to see which direction a polygon is facing (because the mesh may or may not be displayed as the 'white' of untextured surfaces).
#Sims 4 studio blender 2.76 download how to#
How to set up double-sided meshes ^īefore progressing it helps to activate " Wire" mode - in Blender this option is located in " Object" properties, under the " Display" sub-section (for Blender 2.49 click " Wire" in " Object" (" F7") buttons).
However, because it's generally a good idea to do things as 'cheaply' as possible, the best way to actually achieve a two-sided mesh with different material assignments is to use two separate meshes like this mesh 1 surfaces: » matset1 » renderĮssentially everything is pre-calculated, polygon positions, material assignments and surface data is already present in the mesh so all that's being done (relatively speaking) is the 'reading' and 'rending' of that data. This all requires precious resources and processing time to render to screen, in essence mesh surfaces » duplicate » invert » mat lookup » duplicate » make unique » assign » render Now whilst it is technically possible to render a standard two-faced mesh with different materials on either side, it can only generally be done through some relatively complex calculations that have to differentiate and then determine how materials and surface properties are assigned to any duplicate faces in such a way as to mean they become independent elements from the original. Double sided meshes with different materials ^ Because standard double-sided polygons are created this way, the duplicate will also carry the same 'face data' as the original - the same materials, UVW's, textures, etc are copied onto the inverted face when duplicated, resulting in both being identical (except for the orientation).ĭesign note: this is one reason why polygons have face normals they are the mechanism through which the orientation a given face is determined (which direction it faces and it's general position). This is done through duplicating and inverting (relative to the orientation of the original face the duplication came from) a face so its normal point inwards, the end result being two identical faces, back-to-back. If, on the other hand, the mesh needs to have an 'inside' this means 'forcing' double or two-sided polygons. Due to the fact that items are rendered to screen this way, standing inside a mesh looking out, the user or player is able to see the external world because nothing is blocking their view of it. Generally speaking all faces are rendered single sided by default as it's the quickest and most efficient way to give shape and form to, and in, a real-time environment by processing the coordinate data associated with the individual polygons from which objects are composed. 'Yes' and 'no' depending on what you're trying to do and what you're using.
Single sided faces & meshes ^Ĭan I have a two sided face in Blender/my game using different materials on each side?
Note: Backface Culling and "Texture Face" settings are not the same as 3D View Transparency.
0 kommentar(er)
