Questions tagged [3d]
3D refers to three dimensional space where coordinates are represented with X, Y and Z values.
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3D AABB vs AABB discrete collision - How to choose resolution axis?
I'm working on a simple 3D collision system that only needs to handle dynamic AABB vs static AABB. It needs a sliding collision response, but it doesn't need to sweep (i.e. doesn't need continuous, ...
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Implementing pyramidal "half-voxels" to smooth terrain (not marching cubes)
I need pointers and advice about this idea. I know next to nothing about coding, but I like to design games and come from the art side. I'm designing a survival 3d game which so far doesn't feature ...
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How to use screen space coordinate of the mouse to set a model position in game?
I'm trying to make a movement system in my game where you click the mouse and your model moves towards where you clicked on the landscape, my understanding is the normalized screen coords go from [-1,...
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I want to change the tint of my panoramic skybox for daylight cycle
So i am trying to create a daylight cycle, where it switches between two panoramic images. The change happens slowly one over 2 minutes and the other over 3. During this the fog and light changes ...
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Rotating SDF rectangle with Matrix4
Hei
I'm trying to create my own UI renderer from scratch using SDF functions,
got it working pretty good without any transformations, but now I would like to add ...
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Even after changing Default Behaviour Mode to 3D, my scene still remains in 2D. Why?
I had created a new scene, which didn't have sky and directional light.
To solve this, I created a new skybox, then added to the maincamera. But there was no difference to scene & game view.
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BSP Tree Troubles and Unpredictable Results
I've been trying to fix this problem myself for ages, but I really do need help. I'm creating a BSP tree for my 3D game (baked in the map files, quake style) to replace my existing naïve collision &...
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Get all the vertices my game object covers
I want to get all the vertices of an 3D object.
I'm using this:
...
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How can I map out multiple decals on a reel?
So I want to map out multiple Decals on this reel. How can I map it out aesthetically and mathematically correct ?
Looking for a math god to help me with this calculation.
So far I have hardcoded the ...
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Why is my Gouraud Shading not working correctly?
I am trying to write a 3d Renderer in C using SDL and cgml but my shading seems to be not working correctly. When rendering the teapot I get seams and when I want to render a cube I get a bright white ...
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Octree as struct not class
I was wondering (as I could not find any implementation online),
if anyone here would have an idea of how to create an octree as a struct and not a class.
The problem is that Octrees are usually ...
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Select polygon (and create submesh) by color of texture?
For a procedural unity mesh operation:
What is a performant way to select polygon (and create submesh) by color of texture?
Raycast hit a point on the mesh, then paint bucket search for the same ...
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How do I move a point in a specific direction in 3D Space?
I know how to move a point in a direction in 2D space it's like this:
pointX += sin(angle) * movementSpeed;
pointY += cos(angle) * movementSpeed;
How do I do the ...
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Avoiding z-fighting when reimplementing Freescape games
I need to avoid z-fighting in exactly co-planar surfaces that are too close to the other solids. I'm re-implementing the Freescape engine in ScummVM (all my code is open-source, available here), and ...
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How to add natural barriers or obstacles without impeding vision?
I am working on a natural, fairly small, grassland like environment/level. I have a few natural, minimally intrusive paths (something like this) throughout it to help guide players to the main weenies ...
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