A raster image which can depict a 3D environment through mapping out the height at every point. Can be thought of as a mechanically consumeable form of topographical map.
13
votes
2answers
6k views
How can I make huge terrains in Unity?
How can I make extremely huge terrains in Unity? It seems like I can set width and length to large values. But the Heightmap resolution only goes up to 4097 and the Detail resolution only goes up to ...
10
votes
2answers
816 views
Heightmap-based Terrain with a Road
What's the best way to implement a detail feature, like a road, on a heightmap-based terrain?
Update: It's a bit hard to see in the image, but the road descends from the top of the quarry to do its ...
7
votes
1answer
335 views
Is 1 pixel of a height map representative of 1 vertex on the mesh?
I'm trying to get my head around heightmap terrain generation. If I have a plane say 64 x 64 verts will I need to create a 64px by 64px greyscale heightmap in order to displace the geometry of the ...
5
votes
1answer
2k views
Sidescroller variable terrain heightmap for walking/collision
I've been fooling around with moving on sloped tiles in XNA and it is semi-working but not completely satisfactory. I also have been thinking that having sets of predetermined slopes might not give me ...
5
votes
3answers
1k views
Height Map vs 3D Model Mesh
I'm currently working on a 3D PC game (written in C++ and DirectX 9.0) and I'm trying to find the best way to store level data in the memory.
The game's action takes place under the ground, so ...
5
votes
2answers
816 views
Arrays for a heightmap tile-based map
I'm making a game that uses a map which have tiles, corners and borders. Here's a graphical representation:
I've managed to store tiles and corners in memory but I'm having troubles to get ...
5
votes
1answer
164 views
Smoothing Heightmap Data
I've made a Heightmap Generator that creates island heightmaps like in this picture:
I am dividing the grayscale ( 0 - 255 ) into 4 diferent parts ( water, sand, gras and forrest )
and after ...
5
votes
1answer
2k views
Generate islands/continents with simplex noise
Managed to get something like this using a simplexnoise port i made from the original javacode to php:
Used some tips from other post:
Understanding Perlin Noise
basically, lowered the frequency ...
4
votes
4answers
710 views
How would I go about implementing a globe-like “ballish” map?
I am new to 3D development and I have this idea of having the game world like our globe is - a ball. So, there would be no corners in the map and the game is top-down RTS game. I would like the camera ...
4
votes
1answer
385 views
Heightmap generation
I want to implement something like this to create a heightmap: 'Place a group of coordinates evenly across a map, and give them height values within a certain range. Repeatedly create coordinates ...
4
votes
2answers
1k views
Control diamond square algorithm to generate islands/pangea
I generated a height map with the diamond square algorithm. The thing is i do not manage to create islands, this is, restrict the height other than water level range to a certain value in the center ...
4
votes
1answer
521 views
Island Generation Library
Can anyone recommend a tile map generator (written in Java is a plus), where one can control some land types? For example: islands, large continents, singe large continent, archipelago, etc.
I've ...
4
votes
1answer
544 views
Heightmap Physics Optimization/Improvement
I'm working on implementing the physics surrounding a player walking on a heightmap. A heightmap is a grid of points which are evenly spaced on the x and z axes, with varying heights. The physical ...
3
votes
3answers
469 views
Heightfield terrain in ASCII games?
Is there a good way to represent variable terrain using heightfields (or heightmaps) in an ASCII game such as a Roguelike?
Thanks!
3
votes
3answers
2k views
Voxel heightmap terrain editor
I've recently been experimenting with a simple Voxel-based 3d engine (think Minecraft) which uses heightmaps to define terrain in the following format:
http://en.wikipedia.org/wiki/Heightmap
Does ...
3
votes
1answer
192 views
Dealing with edges on spherical heightmapped terrain
This is the problem I'm having: where the height has been applied to the vertex, the edge of each face has been pushed apart. I was wondering how I can best deal with this issue?
I read elsewhere ...
3
votes
1answer
687 views
Drawing a depth map properly
I want to render a depth map by importing it from a file, then creating an array of vertices and indices, and then displaying it using a basic shader (just apply the view and projection matrices on it ...
2
votes
2answers
836 views
XNA Seeing through heightmap problem
I've recently started learning how to program in 3D with XNA and I've been trying to implement a Terrain3D class(a very simple height map). I've managed to draw a simple terrain, but I'm getting a ...
2
votes
2answers
355 views
What is the best way to “carve” a terrain created from a heightmap?
I have a 3d landscape created from a heightmap. I'd like to "carve" some holes in that terrain. That will allow me to create bridges, caverns and tunnels inside it.
That operation will be done in ...
2
votes
2answers
549 views
How to interpolate a height-map with normals
My Task
I want to interpolate a heightmap by using the normal of each nearby point of the heightmap which is calculated before. When having 4 Points before i gonna have 9 points after it. ( See this ...
2
votes
1answer
248 views
Spherical procedural terrain shader based on slope
I've created a spherical terrain object out of 6 sphere projected (normalised) planes, each plane has been heightmapped post to being normalised.
I'm looking to create a CG shader which will ...
2
votes
1answer
355 views
Help me to fine tune my diamond-square algorithm
Check this map i generated:
I seeded a sine wave to act as a mountain range. The lower portion of the sine wave looks fine, but the upper side is thin, the algorithm did not do its magic there ...
2
votes
0answers
173 views
Collision detection with heightmap based terrain
I am developing a 2D tank game. The terrain is generated by Midpoint Displacement Algorithm, so the terrain is represented by an array:
index ---> height of terrain
[0] ---> 5
[1] ---> ...
1
vote
1answer
1k views
How does Terrain following work on height map?
I'm writing a 3D world game which consists of a terrain map (generated by brownian motion algorithm) and a simple avatar. My goal is to make the avatar move smoothly between points of different ...
1
vote
1answer
1k views
Why can't I add a float4 read from a Texture2D.Sample in the Vertex Shader
These lines work (compile fine):
float4 offset = HeightMap.Sample(HeightSampler, input.Texcoord);
input.Position.xyzw += float4(0, 1, 0, 0);
These do not (any use of offset together with ...
1
vote
2answers
148 views
How to get the height at a position in a triangle
I have a heightmap, and I store the heights in a giant array. However, when I move, it's quite choppy on the Y-axis, so I need a way to get the height at a certain point in a triangle.
I currently ...
1
vote
1answer
249 views
Heightmap in Shader not working
I'm trying to implement GPU-based geometry clipmapping and have problems to apply a simple heightmap to my terrain. For the heightmap I use a simple texture with the surface format "single". I've ...
1
vote
1answer
445 views
3D Collision help
I'm having difficulties with my project. I'm quite new in XNA. Anyway, I'm trying to make 3D game and I'm already stuck on one basic thing. I have terrain made from a heightmap, and an avatar model. I ...
1
vote
1answer
711 views
Calculating vertex normals on the GPU
I have some height-map sampled on a regular grid stored in an array. Now, I want to use the normals on the sampled vertices for some smoothing algorithm. The way I'm currently doing it is as follows:
...
1
vote
2answers
44 views
Defining lines from a heightmap
To a pixel shader of a 2D game, I'm passing a 1-row heightmap that holds the height in UV coordinates of evenly distributed points throughout the texture I'm drawing, but as for n points there will ...
1
vote
0answers
46 views
How to determine character's foot contact point on a uniform triangle mesh terrain?
For a terrain that is modelled by a heightmap with a uniform triangle mesh, what are some techniques I could use to determine the contact point of the foot of a character standing on the terrain?
...
1
vote
0answers
130 views
loading a heightmap as texture in shader
I have a height map of 256x256, containing, foreach cell, not only height as a normal float value ( not 0-1 ) and also 2 gradient values ( for X and Y ), also as normal float values ( not 0-1 ).
I ...
0
votes
1answer
112 views
Heightmap implementation in javascript question, a 2D water heightmap
I have a height map function from GPU Gems 2 Chapter 18, where they're generating a set of B/W pixels from this equation:
H(x,y,t) = Σi=0N h (
Axi x + Bxi,
Ayi y + Byi,
Ati x + ...
0
votes
1answer
410 views
Generate texture for a heightmap
I've recently been trying to blend multiple textures based on the height at different points in a heightmap. However i've been getting poor results. I decided to backtrack and just attempt to recreate ...
0
votes
0answers
427 views
Generating and rendering large 2D topographical map with contours
I am looking for an engine / library / technic to implement a large scale 2D topographical map that will be used in an RTS game.
The closest I've been able to find is: ...
0
votes
1answer
392 views
Does anybody know of any resources to achieve this particular “2.5D” isometric engine effect?
I understand this is a little vague, but I was hoping somebody might be able to describe a high-level workflow or link to a resource to be able to achieve a specific isometric "2.5D" tile engine ...
-1
votes
1answer
77 views
Simplex noise 3d map generation [duplicate]
I've just started learning 3d stuff and want to make minecraft clone, cause cubes are easy ( I hope ) :)
Arleady wrote chunk creation, menagement and displaying and want to generate nice terrain, but ...
-1
votes
1answer
162 views
Creating physics in xna
I am creating a racing game using visual studio 2010 and xna 4.0. I'm trying to create some simple physics so my car sticks to the heightmap I have created within my game world and the model adjusts ...
-2
votes
1answer
60 views
procedural height map that changes
This a a weird question.
I'm making a game in unity.
I have a grid of columns and the height of the columns is changing (lerping) randomly (just cus it looks cool!)
I was wondering could I ...
-6
votes
1answer
178 views
Representing heightmaps, on disk and when drawing
This is a conglomeration question when answering please specify which part you are addressing. I am looking at creating a maze type game that utilizes elevation. I have a few features I would like to ...
-7
votes
1answer
159 views
Heightmap VS actual model of environment [closed]
I've been looking at 3D environments for games and I would like to know (case by case) which would be the best fit for development. The types in question are between heightmaps or a model of an ...
