How to easily create a CG image like a toy photo "Ubuntu / Linux" ・ Photo realistic rendering with LeoCAD & Blender

写真かCG？

Introduction

Hello media of streampack team. https://cloudpack.jp/service/option/streampack.html

Copyrights Sintel © copyright Blender Foundation | www.sintel.org

Big Buck Bunny © copyright 2008, Blender Foundation | www.bigbuckbunny.org

LEGO® is a trademark of the LEGO Group of companies which does not sponsor, authorize or endorse the following softwares.

Purpose

Learn simple examples of LeoCAD and Blender. All those softwares are compatible with Linux, Windows & MacOS. As I didn't find a lot of documentation for Linux I decided to focus this tutorial on Linux. All of these software are compatible with Linux, Windows and Mac OS. I couldn't find any Linux installation documentation, so I decided to focus this tutorial on Linux.

Tools / Tools

• LeoCAD
• ldraw-parts
• Blender & ImportLDraw plugin

LeoCAD LeoCAD is a free & open sources CAD software , you will be able to create scene easily with block parts using drag&drop. LeoCAD supports the ldraw file format. LeoCAD is a free and open source CAD software. You can easily create a scene with block parts using drag and drop. LeoCAD supports the ldraw file format (https://en.wikipedia.org/wiki/LDraw).

Blender Blender is a free & open sources 3D modeler & renderer. Movies like Sintel or Big Buck Bunny have been entirely made with Blender. Blender is a free open source 3D modeler and renderer. Movies such as Sintel and Big Buck Bunny are all made in Blender.

Blender plugin Blender will use this plugin to import .ldr files and to setup the rendering options. Blender uses this plugin to import **. ldr ** files and set rendering options.

Versions ・ Versions

In this tutorial I am using the following versions : This tutorial uses the following versions:

Installation and common use cases ・ Installation and common use cases

LeoCAD

sudo apt-get install leocad

By default, LeoCAD is provided with a limited number of block parts. We will install more parts in the next step. By default, LeoCAD provides a limited number of block parts. The next step is to install more parts.

More block Parts! More block parts!

The following command will install more blocks for LeoCAD. The following command installs more LeoCAD blocks.

sudo apt-get install ldraw-parts

Checking the ldraw-parts install path : ** ldraw-parts ** Check installation path:

dpkg -L ldraw-parts

When you install this package with apt-get, the default block parts location will be /usr/share/ldraw The ImportLDraw plugin is looking for parts in ~/mldraw

If you install this package with ** apt-get **, the default block part location will be / usr / share / ldraw. The ** ImportLDraw ** plugin is looking for parts in ~ / mldraw.

As the paths are different we need to create a symlink. Since the paths are different, we need to create a symbolic link.

ln -s /usr/share/ldraw ~/ldraw

LeoCAD is very easy to use and intuitive. You can easily drag & drop parts to create your scene. Your saved scene will use the .ldr format. LeoCAD is very easy to use and intuitive. You can easily drag and drop parts to create a scene. Saved scenes use the **. Ldr ** format.

Blender In this tutorial I am using Blender v2.82. I'm using a static build of Blender "v2.82". Download it from here Download here

Blender plugin Download it from here. Download from here.

Step 1 ・ STEP 1

Please choose Please choose: Edit > Preferences

Step 2 ・ STEP 2

Click Add-ons, then Install Click ** Add-ons **, then ** Install **

Step 3 ・ STEP 3

Please select & install the plugin as shown in the screen capture. Select and install the plugin as shown in the screen capture.

Step 4 ・ STEP 4

Please activate the plugin & save the settings. Please enable the plugin and save your settings.

Step 5 ・ STEP 5

You should now be able to import LeoCAD files. You should now be able to import the LeoCAD file.

Step 6 ・ STEP 6

Checking the imported scene. You can use the mouse wheel to zoom in and out on your scene. You can hold the middle button of your mouse to move around your scene. Check the imported scene. You can use the mouse wheel to zoom in and out on the scene. You can move around the scene by holding down the middle mouse button.

Step 7 ・ STEP 7

Moving the camera & changing the perspective. In order to move the camera you need to select it by clicking it, then press the G key and move it with your mouse. Move the camera and change the viewpoint. To move the camera, you need to click the camera to select it, press the ** G ** key and move it with the mouse.

Some Blender keyborad shortcuts ・ Blender keyboard shortcuts

From the Blender documentation

From Blender doc

Roll Press R to enter object rotation mode. The default will be to rotate the camera in its local Z axis (the axis orthogonal to the camera view), which is the definition of a camera “roll”.

Roll Press ** R ** to enter the object's rotation mode. By default, it rotates on the camera's local ** Z ** axis (the axis orthogonal to the Camera View). This movement is called the "Roll" of the camera.

Horizontal Pan or Yaw This corresponds to a rotation around the camera’s local Y axis. Press R, and then Y twice.

** Horizontal Pan or Yaw ** This corresponds to rotation around the camera's local Y axis. Press ** R ** followed by ** Y ** twice.

Step 8 ・ STEP 8

Settings the image size. Please select an image size.

Step 9 ・ STEP 9

CPU Rendering / CPU Rendering

Render faster with a GPU ・ Render faster with GPU

If you have a supported GPU you can render pictures faster. If you have a Supported GPU (), you can render the image faster.

Go to : Please click: Edit > Preferences > System Once you selected your GPU, you need to enable it for rendering. Once you've selected your GPU, you need to enable rendering.

You can now start GPU rendering. Now you can start GPU rendering.

Rendered pics examples-Rendering examples

Holiday house model can be found here. Click here for the Holiday House model [https://www.eurobricks.com/forum/index.php?/forums/topic/48285-key-topic-official-lego-sets-made-in-ldraw/&page= It is located at 31 & tab = comments # comment-1529726). This picture has been rendered in 02 min 40 sec with a nvidia GPU. It took 2 minutes and 40 seconds to render this image on the nvidia GPU.

Train model can be found here. The train model is [here](https://www.eurobricks.com/forum/index.php?/forums/topic/48285-key-topic-official-lego-sets-made-in-ldraw/&do=findComment&comment = 1009702). This picture has been rendered in 02 min 11 sec with a nvidia GPU. It took 2 minutes and 11 seconds to render this image on the nvidia gpu.

Information sources

https://www.leocad.org/ https://www.blender.org/ https://github.com/TobyLobster/ImportLDraw https://en.wikipedia.org/wiki/LDraw https://www.eurobricks.com https://docs.blender.org/manual/ja/latest/editors/3dview/navigate/camera_view.html