Questions tagged [scene-graph]
a data structure that arranges the elements of a scene into a logical representation
76 questions
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Octree Query - Frustum Search and Recursive Vector Inserts
Brief
I have spent probably the last year thinking about implementing an Octree data structure into my C++ game engine project for scene management and frustum culling of lights and meshes. Right now ...
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When/Where to use Node2d as parent vs Other Node
tl;dr = When/Where/Why use 'Node2d' as the parent vs going straight to 'Other Node'?
I have just started diving into using Godot for the first time. I completed the Your First Game official tutorial (...
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Hierarchical relationships in an Entity Component System
I'm trying to figure out how to integrate entity component systems with scene graphs in a web game / application. The problem is of course that ECS and scene graphs are very different in nature. They ...
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Calculating child world translation, rotation and scale
I'd like to know if it's possible to calculate a child's world translation, rotation and scale individually. I'm used to seeing devs resorting to matrix multiplication and then decomposition, like so:
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Parallel transformations tree update
I create my own pet-project graphics engine for the learning and research purposes.
Now I'm trying to create a more efficient scene transformations update technique. My current approach is the linear ...
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Scene graph or just plain container?
I'm trying to understand if it makes sense to call what I have a scene graph or not.
Im doing an asteroid-like game, where all objects in the game are described in world space coordinates (an ...
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Inverse transformation matrix for checking whether a point is inside a rect
I'm trying to determine which nodes in my scene graph contain a given point in global coordinate space, using the inverse of the node's global transformation matrices.
Here's a simplified version of ...
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Can I have a scene graph translation node with multiple parent nodes?
I am trying to write a C++ scene graph structure. While designing the node classes I am facing the below issue.
I have a scene graph to represent a house.
I would like to have another house next to ...
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Determine view-matrix with camera placed in a scene graph
My scene is organized with a simple scene graph where the child multiplies its transformation with the one of the parent.
For normal objects, likes meshes, this works as expected, but I also want to ...
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How to use nodes in scene graph for game logic
I am working on a 3D 2048-game using Java with LWJGL to gain some 3D math and OpenGL experience. I built a small scene-graph (GroupNode and Box). My problem is that the tree structure of my scene-...
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SceneNode transform and Eye and Center position
I am learning some inner workings of game engine development and have come across this confusion. To explain what I am trying to do, I want to start with an example:
Let's say that I have an object (...
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Scene components and renderer
I'm currently writing a very small game engine for learning purposes, and hit a block when trying to separate the engine's logic from the "rendering" module.
My current approach is to feed my ...
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How do I rotate an object around another object with an angle and an offset?
I made a small game engine with a hierarchy, but have a with problem with applying transform down the hierarchy. I have an object with a parent, and I want the child to rotate around the parent with ...
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How can I visually see changes made to a scene since the last git commit
I'd like to see the changes made in a scene (.unity file) before I commit them to git.
I have looked into several GIT/Unity solutions but all of them are made for merging changes and not for showing ...
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webgl draw call batching and optimizations
I'm working mostly with three.js and webgl, i have some experience with unity.
I don't consider three.js a game engine, more of a "rendering library" - something that takes care of the GL ...
