A 2D shape consisting of straight lines that are joined to for a circuit.
0
votes
1answer
89 views
Recommended polycount for a MMORPG character
"How much polygons is too many for a MMORPG character?"
I did some research and found a few discussions about the matter. But the answers I found was mostly "Polygons has nothing to do with ...
1
vote
1answer
50 views
Points inside a Polygon, failing for shapes with 0,0
I've been using an algorithm (http://wiki.unity3d.com/index.php/PolyContainsPoint) to tell me if a point is inside a polygon... in fact a few variants (here and here) but they all come back the same. ...
0
votes
0answers
17 views
Generate Colliders By Traversing Game Objects [duplicate]
Assuming I have all of the blocks in this scene stored in a list. If I wanted to create a single polygon collider to cover the connected parts of the level, then which traversal algorithm should I be ...
2
votes
2answers
57 views
LibGDX: Is there a maximum amount of vertices for a PolygonShape?
When you use PolygonShape.set(Vector2[] vertices), is there a limit of vertices of the array which is passed to the method?
0
votes
0answers
41 views
Merging coplanar triangles of mesh into polygons
I have a 3d city model and imported it into unity. I need to merge coplanar triangles into polygon surfaces because I want to create grids on building surfaces. How can I make this possible? Are there ...
1
vote
0answers
58 views
Is there a way to rotate a TexturePaint?
I wanted to add a grass texture to my 3D polygon-based game, and thought the easiest way to do it was to use a TexturePaint. Currently, the texture stays fixed while the world rotates which isn't the ...
1
vote
2answers
48 views
Replace PolygonCollider2D with MeshCollider at runtime
I am using a PolygonCollider2D to load in points for a MeshCollider at runtime, but am having issues switching between the two at runtime using good coding practices.
This is a simplified version of ...
1
vote
0answers
98 views
Polygon 2D collision response- How do I find the correct edge a polygon hit?
Hey guys I've been seriously stressed out by this, so please go easy on me.
My goal is to reflect a bullet (polygon) off of another polygon, and find the edge the another polygon, A (the bullet), hit....
-3
votes
1answer
42 views
Polygon movement towards certain point libGDX
I recently started using the Polygons but I'm have struggle as I'm trying to make a Polygon move towards the center of my screen, although I don't know how.
Here's the code I have(What I'm trying to ...
0
votes
1answer
71 views
Combining lots of small polygons to one (some) big poly(s)
I am looking for algorithm to merge lots of relatively small 2d polygons to one or some big polygons. In case two small polygons are touching or overlapping, they should be merged to one polygon.
My ...
0
votes
0answers
17 views
How to convert HiPoly to LoPoly & Displacement map
I've got some HiPoly meshes that have come from RealFlow. Loading them as-is uses a huge amount of memory. It seems like the ideal solution would be to simplify the mesh, but I'd like to preserve the ...
0
votes
0answers
18 views
Packing a load of irregularly shaped textures with UV bounds into a single texture
I'm developing a 2D game that uses a very large and varied set of high resolution tiles.
Some of the shapes are large and diagonal, so when when it comes to batching all of the images into a single ...
0
votes
0answers
12 views
Render layered polygons
I am coding a video game in as3 for practice in game development/programming. It's a pixel game and I'm using my own game engine and I also created my own drawing api for thick lines and thin lines by ...
0
votes
0answers
49 views
How to get many rectangles and join them together into one polygon
I'm using LibGDX to make a platformer game in which I have a tilemap containing lots of instances of a Tile class. From the Tile class you can return a rectangle which represents the tile's position ...
0
votes
0answers
105 views
How to split or divide a polygon face in 3DS Max
I have previously used the Cut and Slice tools in 3DS Max. Recently I wanted to divide a selection of polygon faces into a specific number of faces. For example split each face into 2 equal halves, or ...
1
vote
0answers
30 views
Getting the polygon footprint from a map
I'm trying to implement the Explicit Corridors method to generate a navmesh for a large city. The algorithm takes a list of convex polygons representing the obstacles as input.
The paper only ...
0
votes
1answer
47 views
My polygons only register a collision if they are the same shape and directly over top of each other
I'm trying to learn about 2d polygon collision detection/handling and have ran into a snag.
After running through lots of tutorials and sample code I've attempted to implement my own polygon class ...
1
vote
0answers
64 views
GJK algorithm in case of circle and polygon?
I wonder if it's possible to modify GJK so I can use it to detect collision between circle and n points polygon.
I implemented for polygon and polygon before, and I tried modifying the support ...
3
votes
1answer
99 views
Polygons and actionlisteners Libgdx
I've been browsing these forums for a while now and I nearly always am able to find an answer without having to ask my own question! Such a great community!
This is the first time I've been stumped ...
2
votes
1answer
202 views
Ray tracing - draw polygon (square/bounded plane)
I'm going on with my own ray tracer as an iPad app for a school project. This is the result with soft shadow, antialiasing, pure reflective and pure transparent object:
Now i want to change the ...
1
vote
0answers
36 views
How to test which edge is going in and which edge is coming out in Weiler-Atherton Algorithm?
The basics of Weiler-Atherton Polygon Clipping Algorithm are:
Start from the first edge which is going inside the clipping area.
When an edge of a candidate/subject polygon enters the clipping area, ...
2
votes
1answer
215 views
2D World - How to represent my Game Objects graphically?
I want to code my own topdown 2D game with SFML+C++ that later shall have multiplayer functionality. Therefor I want to seperate the graphical and logical Parts of my game.
All of my ingame Objects ...
0
votes
1answer
200 views
Should a mesh consist of triangles or quads?
Currently I am a bit puzzled. I am writing my master thesis about procedural mesh and texture generation and for that I am writing a Blender Add-On to generate low poly planets with physical ...
1
vote
1answer
73 views
How can I determine “exact moment” of collision with ray casting?
I'm currently brainstorming how the physics for my game engine is going to be handled.
It's top down and I'm thinking of using ray casting for collision detection.
I've reached two potential problems (...
0
votes
0answers
133 views
Libgdx polygon ratating
I'm using polygons for collision detection. Here is the code:
poly = new Polygon(verticies);
poly.setOrigin(100,100);
poly.setRotation(45);
renderer.setColor(Color.GREEN);
renderer.begin(ShapeType....
3
votes
2answers
94 views
XNA/C# Convert polygons into tilemap
I'm currently working on my 2D survival game, where the world is infinite and generated by perlin noise. I wanted to also include biomes and this article interested me - http://www-cs-students....
0
votes
0answers
101 views
Blender to UDK 3 How to smooth Static Mesh
I've created a bed cover model for my small game and here is how it looks like in blender:
http://imgur.com/T88Mnbs
but whenever I import it to UDK it looks like this:
http://imgur.com/OMXBno3
it ...
1
vote
1answer
291 views
Vertex ordering with THREEjs's exporter
I'm using THREEjs's exporter to export a 2D polygon plane. The resulting JSON gives me the vertices. I'm trying to properly order these vertices as to make the actual polygon shape, without luck.
...
0
votes
2answers
184 views
Moving a Polygon based on Camera position
I am in the process of implementing TMX Maps (made in Tiled) for my game. In Tiled, I can create polygons, which leaves a tag, containing the points.
Loading in these points to a Polygon (java.awt....
2
votes
1answer
1k views
Creating polygons with separate outline/fill colors in OpenGL
Subject
I am creating a terrain map with triangle strips and I would like to make the bodies of the triangles black, but have their outlines be colored.
Problem
The solution appears to be to draw ...
1
vote
1answer
830 views
Polygons requirement on mobile devices, around 3000 vertices?
I read on the unity documentation that a character should be between 300 to 1500 "polygons" on mobile devices to have good results. In Blender, we have "tris" or "faces", does "polygon" stand for the "...
1
vote
0answers
89 views
2D Polygon Collision push direction with large polygons
I have a collision detection/resolution implementation that uses the Separating Axis Theorem. Detection and such works perfectly fine, as well as resolution for most objects/shapes in my game.
...
0
votes
0answers
32 views
Efficient point-in test on static Polygons
I have some convex 2D polygons that are static and I would like to create an efficient point in test for them. I'm pretty new to this area of study so I just want to make sure I haven't made an error ...
0
votes
1answer
615 views
How to unsmooth polygons in 3dsMax
i am creating a game using a "Low Poly Art Style". Meaning there is an effect of polygons on the model. Whilst modelling a tree, a portion somehow became smooth and i continued to model not knowing ...
0
votes
1answer
341 views
Tiled PolygonObjects rendering wrong in libgdx
this is how I render the polygons in Tiled
this is how they get rendered in libgdx. Notice the top part of the triangles is straight instead of being hollow.
here is the code I use to convert the ...
2
votes
1answer
273 views
What are some ways of making a game engine centered around the idea of drawing vector lines and polygons only? [closed]
I've always loved the look of games that just use simple lines and polygons for graphics. Rez is one of my favorite games, visually. I'm a programmer and designer first and foremost, and I'm horrible ...
5
votes
5answers
5k views
How can I test whether points are within a polygon?
I have 2D-points, which boundaries depict a polygon. The points are at integer positions (no fractions possible).
Now I want to build an enumerator in C# that returns all points that are inside the ...
1
vote
2answers
188 views
What is the purpose for drawing vertices and shapes in OpenGL (or DX), if a game is using sprites?
Something I do not understand. All the tutorials on OpenGL, DirectX, or other, always show you how to draw a shape and then change its vertices, move it around and so on. But all the games I know of,...
0
votes
1answer
344 views
Calculate polygon points from image
I'm new to OpenGL, so please excuse my brevity and/or lack of technical knowledge of the subject.
I need some help with rendering a polygon on an OpenGL canvas (using C# w/ Tao). I understand that I ...
0
votes
1answer
112 views
Box2d polygon skin
In manual is see:
Polygons inherit a radius from b2Shape. The radius creates a skin
around the polygon. The skin is used in stacking scenarios to keep
polygons slightly separated. This allows ...
0
votes
1answer
3k views
How to calculate ray polygon intersection? [duplicate]
I'm in a class where we are creating a ray tracer from the ground up in C++. I'm at a point where I can't seem to wrap my head around the math that is required to calculate the point at which a ray ...
2
votes
1answer
311 views
How to create polygons from tilemap areas?
I'm currently working on a project which needs simple AI's to walk around using pathfinding.
I'm trying to find a way to generate a polygon based on the connected tiles (explained below), an i'm ...
1
vote
0answers
133 views
Cubic bezier polygon clipping
I have a large cubic bezier defined 2D polygon area which I need to render in DX11 real-time to create as many 4096x4096 textures as needed.
An average control point count would be around the 12k and ...
1
vote
3answers
753 views
Why are huge polygon amounts bad?
It is always said that the polygon amount of a single modell must be as little as possible when it comes to realtime simulations such as computer games. (Or at least lower than when rendering a movie)
...
0
votes
1answer
1k views
libgdx custom shape overlap detecting
I'm writing my game on libgdx w/o any of those extensions like box2d and whatsoever. But right now I'm forcing problem with overlapping detection. I need to detect if bullet (which is always in ...
2
votes
2answers
343 views
Calculate laser bounce inside polygon
I am trying to calculate the reflection of a laser within a polygon. My current calculations are probably quite long-winded because I'm building on line intersection and other functions. The problem ...
2
votes
1answer
434 views
How do I convert a partially transparent image into polygons?
I'm using GLEE2D, a level editor allowing me to import images, scale them, rotate them, and position them onto layers and export the data into XML format. However, it does not tell me objects' ...
2
votes
2answers
161 views
How can I test if a point is behind a polygon in 2D?
In order to improve the performance of my visibility graph generator I am trying to figure out the following.
Given the image below; is there a way to find out if a point is 'behind' the polygon? For ...
11
votes
3answers
2k views
How can I add and subtract convex polygons?
I have two 2D convex polygons overlapping each other. I am looking for an algorithm to subtract and add them. The result must be a single concave polygon or (even better) a set of biggest convex ones ...
2
votes
3answers
5k views
Polygons vs sprites rendering performance in Unity for windows phone 8
I'm currently building a windows phone 8 game with unity, having 111 (no more no less) sprites being updated each frames. I have a strong overhead in the profiler (70% to 90% minimum) I tried the ...
