Le 28/07/2014 22:45, Mário Luzeiro a écrit : > Hello all, > > Attached you will find my contribution to 3d-viewer. I hope that it > can be incorporated in the trunk of KiCad development. This (not so > simple) additions will give to KiCad a more “pro” look that was > missing in the 3d-viewer. > > Have a look in the screen-shots attached to get an idea of the new > look I propose. > > My time is short but, in meanwhile, if you find small issues I will > try to quickly fix and submit it. > > Have fun! > > > New features / changes: > > + It tried to use as much as possible data structures from glm > library. + I tried to separate the load of the file model from the > OpenGL render. (still need some work for full detach, see missing > features) Now there are new class with new data structures that store > 3d model data and render it later. + x3d now support per face diffuse > color (== you can use blender exporter to generate this format !). + > add support for VRML 1 mesh format (== you can now use directly files > from 3dContentCentral !). + recode and improve VRML 2 support (it now > supports more complex hierarchical files and materials, == you can > use FreeCAD export to generate this format !). > > > Eye-candy render: > > + Smooth normal calculation. + PCB texture. + Silk screen texture. + > Diffuse shadow per object Front/Back side. + Diffuse shadow for all > board. + Background gradient. > > > Bug fixes: > > + x3d loader was not setting locales C so files are not loaded in > some language settings. (Bug #1341231) > > > Know issues / missing features: > > - I found some models files to have invalid face index (example face > is declared using the triangle indexes: 1, 3, 1 and it cannot have > two index points of the same value). Some easy fix can/should be > added in future. > > - Model files are loaded twice (this was happen already in older > kicad version). In complex boards, the 3d-viewer in my (not so fast) > computer can take 10 to 20 or more seconds. This happen because it > try first load the opaque objects and then the transparent ones. I > didn't understand it clear so I didn't change it. I do believe that > with the changes I did, someone now with more kicad dev knowledge > should have a look and see how the files are loaded and some how try > to first load all different files and then just render the object by > its file name. (first make a list of different models, then render > each component for same models..etc)
You have to draw transparent items *after* the opaque items. Otherwise transparent items are not always seen transparent. Of course, there is room for optimization. > > - Also it would be nice to cache models between sessions? So it will > not load/reload every time you want to refresh your PCB because you > did some changes. > > - It could also disk cache information regarding the 3d models, as an > example, the bounding boxes so it will render the BBox in some fast > (non realistic) mode. (I miss this information to proper render the > board shadow, that I am using a fixed Z value now, and it should be > related with the Z of all board component models) > > - Some selectable options may be added to improve 3d-viewer (colors, > render options, etc). > > - I added options in the source code to use or not the material > properties of model files. I disabled emissive, specular color, > ambient and shininess because some currently well know models (ex: > walter) have that properties with bad values and it will make the > render look bad or too exaggerated. > > - Because the way VRML Export is implemented, it will add a “link” to > other VRML files. If you are using VRML 1 files and if your external > software don't support VRML 1 format it won't be able to load that > exporter file. (and I do believe that it will be the case of most of > free software, blender, freecad, etc). The way to properly implement > this should be export the VRML 1 file to VRML 2 or embedded the VRML > 1 file in the exporter file it self. > > - Because now I had implemented a 3d_mesh_model.h for loading all > model files, it should be easy to port the remaining source code and > implement a new 3D file exporter (to some mesh format, obj, x3d, …) > > - I notice that some VRML 2 models with transparency may are not > being correctly rendered. > > > Mario Luzeiro Thanks, Mario. But where are the attached files? -- Jean-Pierre CHARRAS _______________________________________________ Mailing list: https://launchpad.net/~kicad-developers Post to : [email protected] Unsubscribe : https://launchpad.net/~kicad-developers More help : https://help.launchpad.net/ListHelp
