This is a Blender plugin for it to work, Blender needs to be able to import FreeCAD as a module from the Python Console. io_import_fcstd.py, original version for Blender 2.79.However, there is also the option of importing the FreeCAD file (.FCStd) directly into Blender by means of a plugin. This specifies that rendering should happen in the background with -b the rendering engine is chosen with -E the output filename is selected with -o the double forward slash // indicates a path relative to the input file the hash mark # is used to indicate the frame number, padded with zeroes if necessary, for example, 0001 the number of CPU threads used in rendering is chosen with -t 3 the output file format is indicated with -F, and the -x 1 option adds automatically the extension to the name the final option is -f 1 which indicates that only the first frame will be rendered, which is the normal case for a static scene for animations use the -a switch to produce an image for each frame, which can then be assembled to produce a video file.Ĭreating the intermediate Wavefront mesh (.obj) and then importing it into Blender will work in most situations. If your model looks reasonably well with the EEVEE renderer you can already save the image by going to Image → Save As or pressing Shift+ S in the Image Editor.īlender -b assembly.blend -E CYCLES -o //assembly_CYCLES_# -t 3 -F PNG -x 1 -f 1 Press F12 to render the view through the camera and check the quality of the image.ġ5. Use Z to open the pie menu and switch back to Solid mode ( Z 6), or go to LookDev mode ( Z 2), a mode which adds different types of lighting to the scene to test the appearance of the materials. Press Z and then 8 (numerical pad) to enter Rendered mode in this mode, the EEVEE renderer shows in real time in the 3D viewport how the final image will look like. Test different combinations of materials until they look acceptable. Other materials are microscopically rough, and therefore do not reflect as much light, making them opaque.ġ4. In general, metals are naturally smooth and therefore their roughness value is small, making them very reflective (shiny). The closer to 0.000 the Roughness is, the more reflective (mirror-like) it will appear.įor non metals, like plastics, wood and textiles, set the Metallic slider all the way to 0.000, and adjust the value of Roughness to between 0.4 and 1.0. Adjust the value of Roughness to be between 0.2 and 0.7. For metallic parts, turn the Metallic property all the way to 1.000. Select each of the parts of the model, and adjust the respective Principled BSDF material node. Principled BSDF shader used in Blender to simulate a variety of materials ranging from shiny metals to rough and opaque solids.ġ3.2. This can be useful if you are importing objects into an existing scene where other objects are already in their right positions. This can be automated by a small script that just sets the rotation of each imported body to zero, with the exception of the objects inside the fixed_objs tuple. Hit N to show the auxiliary panel select an object, go to the Transform section and set the Rotation to 0° in each field. When imported, objects may appear rotated around one of the axes, for example, 90 degrees around the X axis. If you wish, also adjust the size of the grid go to Overlays, then Guides, and set the Scale of the grid to 0.001. Hit N to show the auxiliary panel go to the View section and set the End to a large value, for example, 1E6 mm or 1000 m.Ħ.2. If you zoom out, and the view cuts the imported parts, you may have to adjust the view clip values. If you just want to render your scene quickly, you may omit any adjustment.Ħ.1. Note: changing the scale and units of the scene is only necessary if you wish to work with objects at their true dimensions. length_unit = 'MILLIMETERS' # or _settings.length_unit = 'METERS' bpy. Assign colors or materials to the individual bodies that make the assembly, approximately matching the color that you want in your render.īpy. Create an assembly using bodies from the Part Workbench or PartDesign Workbench, or any other workbench that produces solid objects, for example, the Arch Workbench. It shows various Python commands that can be used to perform actions quicker both in FreeCAD and Blender.Ī similar description of this process is described in a series of videos, Render Solidworks and FreeCAD Models in Blender, by Joko Engineering.ġ. It produces a rendering with Blender 2.80 with both the EEVEE and Cycles renderers. Then this part is exported to Blender for rendering. It assumes that the user already created the part in FreeCAD, or has imported it into it. This tutorial shows how to produce a rendered image in Blender, beginning from a part or assembly created with FreeCAD.
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