THE REPOSITORY IS THE MOST UP TO DATE SOURCE OF INFORMATION!
WARNING: ALL BELOW MAY BE TECHNICAL, DISCUSSION OR OUTDATED!
What it does?
The render2print addon has always allowed to set the render size to print formats like A4, A3, ... Now reC's + friend's + mine work extended it to allow to print out to scale (e.g. 1:50).
Why use it?
Printing out rendered (cycles, freestyle or OpenGL viewport) images of your models. Combined with cross section plane approach or addon (both ways exist), this allows to create manufacturing or assembly drawings.
Also useful with caliper or measurement addons. Not sure if Grease Pencil->Ruler can be openGL viewport rendered.
Margins allow to relocate the scale ratio text:
It is no new addon, but extends the old one. (Not losing the overview over all those great (all but mine) addons is difficult enough already.) Remember the old functionality is unchanged, we merely extended this great addon (version 0.2).
Important note when setting up the printer!
There is a DPI (dots per inch) setting that you choose in the render to print panel . Remember this value! Don't forget it! Keep in mind that this setting (dpi) has to be exactly the same in all programs you use your tool chain (blender + image manipulation program for printing [+ printer]).
How to use it?
- Create your artistic scene or engineering model.
- Setup a camera that looks as you want.
- Do some test renders to get the materials set up to your desire.
- Enable the script in the Addons settings CTRL+ALT+U. Search for "render to print". Enable the most recent version.
- Go to the render tab and scroll to the very bottom. You'll find the Render to print settings there.
- Choose your preset format (A3, B5, ...) or set a custom one.
- Enable the to scale option if you want a certain scale ratio for the print out.
- Choose a scale factor (scale ratio) that you like and that fits the objects you' d like to print on within the camera size after executing the render2print main operator (see next step).
- Apply your settings to the render settings and camera by executing "Apply render2print settings".
- Check the camera (best change into the camera view before executing the main operator as described above).
- Check if the text representation of the scale ratio (e.g. 1:10, ..) has been added and is visible from the camera.
- Finally render the scene and save it out to an image if you like (F3).
- If you want to print it, then you'll need to remember the DPI (dots per inch) settings in the Render to print settings in the render tab of the properties panel.
- Open the just saved image in another program where you can set the DPI (like GIMP).
- Check the print settings and set the correct DPI of your image.
- Open printing menu (CTRL+P).
- (optional) Check for the DPI if the printer has a setting for it. Not sure if it has. GIMP somewhat overwrites this setting or at least hands it over to the printer on its own. But you never know.
- Check the result on paper. And tell us if something is at odds.
Video showing a quick testing walkthrough:
Sorry for the really weird quality, I recorded 800x640, cropped it to 800x440 and had set a rather way too high than too small bitrate of 6000 ... turns out the format messed it up. MPEG output always results in this low quality while AVI doesn't.
- Only orthographic camera mode is enabled so far. (field of view and location have to be taken into account for other camera types, and this has low priority currently unless it's really needed)
The addon switches the active camera to orthographic mode automatically if required.