Houdini Algorithmic Live #107 - Sci-Fi Dissolve
Junichiro Horikawa・2 minutes read
The text discusses creating a dissolve effect geometrically procedurally using Houdini, covering parameters, grid adjustments, and unique IDs for cubes. It explores methods for adjusting color, distance calculations, and gravity effects on objects, with a focus on creating intricate visual effects for sci-fi and gaming inspirations.
Insights
- Procedural nature in Houdini enables flexible time frame adjustments for dissolve effects without a solver, emphasizing geometric calculations and parameter customization.
- Utilizing free 3D scan models from Kyushu University under CC BY 4.0 allows for commercial use, providing diverse formats like glTF, USDZ, or glb with 4K textures for download.
- Implementing various techniques like distance calculations, color changes, and shape manipulation in Houdini can create intricate dissolve effects, with the potential to explore Sci-Fi and Tetris-inspired designs through procedural processes.
Get key ideas from YouTube videos. It’s free
Recent questions
How can I create a dissolve effect in Houdini?
The process involves adjusting parameters like grid size, frame count, start/end offsets, and dissolve angle. Utilize a free 3D scan model from Kyushu University, available for commercial use. Import the model into Houdini, adjust orientation, and create a square grid on complex geometry using the Break node. Assign unique IDs to cube faces, calculate positions, and find the center point. Create a base dissolve effect by reducing mesh size and establishing a hierarchy between particles. Adjust values for distance calculations, naming, and normalization to achieve gradual dissolves. Control dissolve timing with start and end offsets, implement rotation and lift effects based on T value, and experiment with color changes for visual appeal.
What are the different distance calculation methods in Houdini?
The text discusses various distance calculation methods, including Manhattan distance as an alternative to Euclidean distance. It details using radial basis functions for Tetris-like blocks, explaining their role in distance calculations. Custom grids can be created using unique attributes connected to points for desired effects. Solvers like SOP or Vellum can be used for gravity-affected objects, with mass attributes and gravity application. The speaker demonstrates applying gravity and updating velocities for detached pieces, focusing on controlling velocity and position changes. The process concludes with a trial of the gravity effect on detached pieces, showcasing position and velocity updates within the solver for the desired outcome.
How can I apply masks for dissolving effects in Houdini?
Masks can be utilized for dissolving effects, but caution is advised due to potential crashes. The speaker encounters issues with pack geometry, leading to a switch to point conversion. Attributes like name and mask are crucial and need accurate transfer. Primitive wrangle can successfully transfer mask information to primitives. Masks can be applied for various effects like color changes based on mask values. The text discusses quantizing colors into integers, adjusting colors based on cluster attributes, and converting colors into HSL for quantization based on brightness values. It explores using the enumerate node, attribute wrangle, cop network, and XYZ distance for transferring mask information to primitives.
What options are available for creating visual effects in Houdini?
Various options and parameters are available, including shape changes, grid size adjustments, and distance calculation options. Parameters like gradient frame, offset frame, and range increase are mentioned, with a comparison to the GameCube load screen effect. Effects can be created on simple geometries like cubes, with potential for a matrix-like effect. The text expresses a desire to change designs to a more Sci-Fi look, inspired by Tetrisphere on Nintendo 64. It delves into using radial basis functions for Tetris-like blocks, different distance calculation methods, and creating custom grids for desired effects. The speaker considers the setup a procedural process, exploring gravity effects, velocity control, and position changes within solvers.
Where can I find free 3D scan models for use in Houdini?
The text mentions utilizing a free 3D scan model from Kyushu University, available for commercial use under CC BY 4.0. Models can be downloaded in glTF, USDZ, or glb formats with 4K textures. Import the model into Houdini, adjust orientation using bounding box and transformation matrix. Create a square grid on complex geometry using the Break node with polygon breaker option. Assign unique IDs to cube faces, calculate positions, and find the center point. The speaker plans to keep the setup for download and future reference, emphasizing the procedural nature of the process.
Related videos
IDA | VFX STUDIO
Houdini 20.5 - Part 3 - More MPM Solver
Junichiro Horikawa
Houdini Algorithmic Live #095 - Pixel Art Generator
Junichiro Horikawa
Houdini Algorithmic Live #060 - Quadrilateral Remesh
pwnisher
Integrate REAL Camera Data in Your 3D Scenes!
Safiya Nygaard
Trying Clickbait Photo "Hacks" From Instagram