Used to describe the physical geography of a location. This can include elevation, slope and orientation of features.

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3
votes
1answer
407 views

Proper updating of GeoClipMaps

I have been working on an implementation of gpu-based geo clip maps, but there is a section of the GPU Gems 2 article that I just can't seem to understand, specifically this paragraph, and more ...
2
votes
1answer
745 views

Voxel (Marching Cubes) Terrain Creation / Terrain Editing

im working on a voxel based game in unity. the terrain(sphere-->planet) should be out of voxels and at first i built a minecraft like voxel plugin for unity. this means that i had a sphere out of ...
2
votes
1answer
629 views

Using PhysX, how can I predict where I will need to generate procedural terrain collision shapes?

In this situation, I have terrain height values I generate procedurally. For rendering, I use the camera's position to generate an appropriate sized height map. For collision, however, I need to have ...
0
votes
1answer
29 views

Mesh Chunk Combining and Extruding

So I'm working on a proceduraly generated level, that is composed of multiple chunks, so you don't go over the maximum amount of verts allowed in Unity Meshes. Another function is the ability to ...
0
votes
1answer
202 views

How can I generate 3D noise in chunks for terrain?

I'm trying to create a voxel engine that uses marching cubes to create smoothed terrain. I have most of it implemented, but I'm struggling with how I should create a noise function in three dimensions....
-1
votes
1answer
161 views

How to create a minecraft style world that is based of a heightmap

for my game I am trying to create a minecraft style world that is based of a heightmap that I made In photoshop. I am trying to make the map like 7km and 1 cube is 1m. but i haven't found a way to do ...
5
votes
0answers
119 views

Diamond-Square algorithm output is random and noisy

I have implemented a rough interpretation of the Diamond-Square algorithm in C++ to create some semi-realistic fractal terrain, but the output just seems like a random y value at each point rather ...
3
votes
0answers
114 views

OpenGL Planet Generation - Simple Matrix Issue (Planet “Spins” With Mouse)

I originally asked this question on StackOverflow & was directed here by a commenter. Im currently working on a OpenGL planet rendering. I'm using the Tessellation pipeline. So far things are ...
2
votes
0answers
42 views

How to smooth low-res sampling of noise for voxel terrain

I am attempting to create a new terrain generator as part of a minecraft mod, which works very well if it samples at the full terrain resolution (16x256x16 voxels per terrain chunk). This is extremely ...
2
votes
0answers
146 views

Ways to get around the limiting default terrain shaders in Unity

I am trying to use the Toon Rim Light shader for Unity however there are a few problems when trying to use any custom shaders for a terrain in Unity. The most well known is of course, that all ...
2
votes
0answers
154 views

Real world terrain import into UE4

I am trying to create a basic game in Unreal Engine 4.8.1 and I wish to have it set in the Dubai, UAE but i cannot find a way that will successfully use terrain data i have obtained (NASA Shuttle ...
2
votes
0answers
302 views

Chunk Texture3D GPU generated vertices

I read GPU Gems 3 from NVidia about procedural terrain. It's quite interesting but not applicable for me because I only read the online version without the shipped DVD so I'm not able to download the ...
1
vote
0answers
47 views

Regional Variation with Perlin Noise

I used Game Maker to construct a 3D terrain using Perlin Noise. Since I wanted to create an island, I set the noise function to return a value between 0 and 128. Then I checked each point and ...
1
vote
0answers
48 views

Map generation, issues with midpoint displacement algorithm

I'm trying to generate an endless 2d terrain. So the terrain isn't random per say as the random function I'm using is a hash based on an X,Y coordinate. static public float rand (System.UInt32 x, ...
1
vote
0answers
190 views

Query regarding a quad tree implementation for spherical terrain

I am having some difficulty conceptualising how a quadtree would be used to implement a spherical terrain system. I currently have a spherical terrain system working, without any form of optimisation,...
1
vote
0answers
285 views

How can I texture a large terrain mesh in OpenGL?

I want to apply a texture to a large terrain mesh in my game. I think that it is just not acceptable to have a gigantic UV map spanning over 4096 x 4096 pixels. What's a better way to apply a texture ...
0
votes
0answers
19 views

terrainData.SetAlphamaps slows unity game

iam using terrainData.SetAlphamaps() function for changing texture of specific part of terrain in update which is like my player moves and i get its transformation and map the texture at corresponding ...
0
votes
0answers
15 views

Hi! How do I do optimized raytracing on a ds_grid heightfield terrain?

I want to do optimized ray tracing, the terrain is a grid, each gridcell has 2 triangles with vartiable z. What's the most optimum way for raytracing collisions? This site has the answer but it won't ...
0
votes
0answers
21 views

Passing heightmap data to btHeightfieldTerrainShape constructor

I was searching for a couple of hours, but I didn't find final solution, after trying many ways. I'm trying to get heightmap heights data, and pass it to btHeightfieldTerrainShape. Let's say my ...
0
votes
0answers
26 views

Hills / Rounded Terrain Generation in libGDX

I'm trying to make a game that has rounded 2D terrain like hills, etc. Im familiar with creating and rendering 2D Rectangles using the ShapeRenderer, but i need some "Get Started"-Help on how to ...
0
votes
0answers
30 views

Access Terrain data more efficiently

I'm developing an editor tool for terrains. I want to do some calculation every time the terrain is modified by user. Currently I get heightmap with these: TerrainData tData = SketchTerrain....
0
votes
0answers
71 views

Unity 5.3.1: Black spots on terrain after applying normal map

When applying a normal to a terrain texture and elevate the area, I see blackness on the side the light is shining. Any idea what is going on here? Here you can see what i mean (added cube to show ...
0
votes
0answers
25 views

JAVA lwjgl 3D Quadmap engine help

I've been trying to make a custom generated level engine that creates a custom flat surface. With my current knowledge of vertices and indices i have successfully created a rectangular surface. My ...
0
votes
0answers
63 views

Java lwjgl 3D custom terrain shape

I have a Terrain class that generates a terrain with 2 nested for loops, one for vertices, and one for indices. for(int i = 0;i < WIDTH;i++){ for(int j = 0;j < HEIGHT;j++){ ...
0
votes
0answers
81 views

Optimal approach to build a quad-tree for elongated terrain?

I have got a polygonal terrain in 3D. For simplicity sake I have split it into multitude of unit squares (cells) alike tilemaps do. Now I need to pick a cell under a cursor. For that I'm casting a ray ...
-1
votes
0answers
50 views

How to generate terrain like in skyroads in jmonkey?

I am looking for algorithm to generate terrain like there was in skyroads Part 1: same terrian again and again. Part 2: different terrain every time. I am, working on game using jmonkey game engine....