This page has been translated automatically.
Video Tutorials
Interface
Essentials
Advanced
How To
Basics
Rendering
Professional (SIM)
UnigineEditor
Interface Overview
Assets Workflow
Version Control
Settings and Preferences
Working With Projects
Adjusting Node Parameters
Setting Up Materials
Setting Up Properties
Lighting
Sandworm
Using Editor Tools for Specific Tasks
Extending Editor Functionality
Built-in Node Types
Nodes
Objects
Effects
Decals
Light Sources
Geodetics
World Nodes
Sound Objects
Pathfinding Objects
Players
Programming
Fundamentals
Setting Up Development Environment
Usage Examples
C++
C#
UnigineScript
UUSL (Unified UNIGINE Shader Language)
Plugins
File Formats
Materials and Shaders
Rebuilding the Engine Tools
GUI
Double Precision Coordinates
API
Animations-Related Classes
Containers
Common Functionality
Controls-Related Classes
Engine-Related Classes
Filesystem Functionality
GUI-Related Classes
Math Functionality
Node-Related Classes
Objects-Related Classes
Networking Functionality
Pathfinding-Related Classes
Physics-Related Classes
Plugins-Related Classes
IG Plugin
CIGIConnector Plugin
Rendering-Related Classes
VR-Related Classes
Content Creation
Content Optimization
Materials
Material Nodes Library
Miscellaneous
Input
Math
Matrix
Textures
Art Samples
Tutorials

Vertex Animation Sample

This material graph sample demonstrates how to use a vertex animation texture in UNIGINE.

Vertex animation can be baked into a texture via one of the modern DCC tools (the example contains textures baked in Blender) and then exported as a set of several files: a geometry file (.fbx) and texture files: textures for the model and textures storing animation (an .exr texture with position offsets and a .tga texture with normals). Then these files are imported into UNIGINE to create the material graph.

The textures with animation are imported with the following settings:

Position offsets texture Normals texture
  • Image Type: 2D
  • Image Format: RGBA16F
  • Mipmap Type: Box
  • Mipmap sRGB Correction: Enabled
  • Image Type: 2D
  • Image Format: RGB8
  • Mipmap Type: Box
  • Mipmap sRGB Correction: Enabled

Albedo and Roughness data for the Vertex Animation material are sampled via the Sample Texture node from the provided albedo and shading textures with accordance to the specified UVs (the Vertex UV 0 node). The Roughness data is also multiplied by a roughness coefficient after sampling.

Object-space Normal data for the material is obtained by blending of tangent-space normals sampled via the Sample Texture node from the provided normal and animation normal textures and subsequent transforming the output tangent-space normals to the object-space ones (the Rotate Space node).

At that, when sampling of the animation normal texture is performed, the original UV is modified as follows: the U coordinate is provided by the Vertex UV 1 node, the V coordinate is the time multiplied by the animation speed. After sampling, vertex interpolation is performed (the Vertex Interpolation node).

Vertex Position data for the material is sampled via the Sample Texture node from the provided position offsets texture according to the UV that is modified as follows: the U coordinate is provided by the Vertex UV 1 node, the V coordinate is the time multiplied by the animation speed. After sampling, the data is multiplied by the vertex offset intensity and then added to the Vertex Position.

The result
Last update: 2024-08-16
Build: ()