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Blender 3D Cookbook

By : Enrico Valenza
Book Image

Blender 3D Cookbook

By: Enrico Valenza

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Blender 3D Cookbook
Enrico Valenza
Jul, 2015 | 608 pages
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Table of Contents (21 chapters)
Blender 3D Cookbook
Blender 3D Cookbook
Credits
Credits
About the Author
About the Author
About the Reviewers
About the Reviewers
www.PacktPub.com
www.PacktPub.com
Preface
Preface
Free Chapter
1
Modeling the Character's Base Mesh
Modeling the Character's Base Mesh
Introduction
Setting templates with the Images as Planes add-on
Setting templates with the Image Empties method
Setting templates with the Background Images tool
Building the character's base mesh with the Skin modifier
2
Sculpting the Character's Base Mesh
Sculpting the Character's Base Mesh
Introduction
Using the Skin modifier's Armature option
Editing the mesh
Preparing the base mesh for sculpting
Using the Multiresolution modifier and the Dynamic topology feature
Sculpting the character's base mesh
3
Polygonal Modeling of the Character's Accessories
Polygonal Modeling of the Character's Accessories
Introduction
Preparing the scene for polygonal modeling
Modeling the eye
Modeling the armor plates
Using the Mesh to Curve technique to add details
4
Re-topology of the High Resolution Sculpted Character's Mesh
Re-topology of the High Resolution Sculpted Character's Mesh
Introduction
Using the Grease Pencil tool to plan the edge-loops flow
Using the Snap tool to re-topologize the mesh
Using the Shrinkwrap modifier to re-topologize the mesh
Using the LoopTools add-on to re-topologize the mesh
Concluding the re-topologized mesh
5
Unwrapping the Low Resolution Mesh
Unwrapping the Low Resolution Mesh
Introduction
Preparing the low resolution mesh for unwrapping
UV unwrapping the mesh
Editing the UV islands
Using the Smart UV Project tool
Modifying the mesh and the UV islands
Setting up additional UV layers
Exporting the UV Map layout
6
Rigging the Low Resolution Mesh
Rigging the Low Resolution Mesh
Introduction
Building the character's Armature from scratch
Perfecting the Armature to also function as a rig for the Armor
Building the character's Armature through the Human Meta-Rig
Building the animation controls and the Inverse Kinematic
Generating the character's Armature by using the Rigify add-on
7
Skinning the Low Resolution Mesh
Skinning the Low Resolution Mesh
Introduction
Parenting the Armature and Mesh using the Automatic Weights tool
Assigning Weight Groups by hand
Editing Weight Groups using the Weight Paint tool
Using the Mesh Deform modifier to skin the character
Using the Laplacian Deform modifier and Hooks
8
Finalizing the Model
Finalizing the Model
Introduction
Creating shape keys
Assigning drivers to the shape keys
Setting movement limit constraints
Transferring the eyeball rotation to the eyelids
Detailing the Armor by using the Curve from Mesh tool
9
Animating the Character
Animating the Character
Introduction
Linking the character and making a proxy
Creating a simple walk cycle for the character by assigning keys to the bones
Tweaking the actions in Graph Editor
Using the Non Linear Action Editor to mix different actions
10
Creating the Textures
Creating the Textures
Introduction
Making a tileable scales image in Blender Internal
Preparing the model to use the UDIM UV tiles
Baking the tileable scales texture into the UV tiles
Painting to fix the seams and to modify the baked scales image maps
Painting the color maps in Blender Internal
Painting the color maps in Cycles
11
Refining the Textures
Refining the Textures
Introduction
Sculpting more details on the high resolution mesh
Baking the normals of the sculpted mesh on the low resolution one
The Armor textures
Adding a dirty Vertex Colors layer and baking it to an image texture
The Quick Edit tool
12
Creating the Materials in Cycles
Creating the Materials in Cycles
Introduction
Building the reptile skin shaders in Cycles
Making a node group of the skin shader to reuse it
Building the eyes' shaders in Cycles
Building the armor shaders in Cycles
13
Creating the Materials in Blender Internal
Creating the Materials in Blender Internal
Introduction
Building the reptile skin shaders in Blender Internal
Building the eyes' shaders in Blender Internal
Building the armor shaders in Blender Internal
14
Lighting, Rendering, and a Little Bit of Compositing
Lighting, Rendering, and a Little Bit of Compositing
Introduction
Setting the library and the 3D scene layout
Setting image based lighting (IBL)
Setting a three-point lighting rig in Blender Internal
Rendering an OpenGL playblast of the animation
Obtaining a noise-free and faster rendering in Cycles
Compositing the render layers
Index
Index

Compositing the render layers

We have seen that the rendering in the Cycles Render engine is quite slow but of very good quality, while the scanline Blender Render engine is faster but with a lower quality.

Thanks to the Blender integrated Compositor and to the render layers, it is possible to mix separated and different passes of both the renderers, obtaining a compromise between quality and speed, for example, by over-imposing the glossy pass obtained in Cycles on the diffuse pass obtained in BI, and so on.

Getting ready

To mix different passes obtained from the two render engines, we must first apply some modification to the materials of the library file:

  1. Start Blender and load the Gidiosaurus_shaders_Blender_Internal.blend file, which is the file we used as library for the proxified character and the walkcycle action.

  2. In the Outliner select the Gidiosaurus_lowres item, be sure to be in the BI scene and go to the Material window; select the first material slot, that is the Material_skin_U0V0...

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