A bitmap (raster image) used in a texture mapping process.

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2answers
57 views

How to preserve generated textures in XNA?

My game generates small "minimaps" for each room you go to, which are rendered onto render targets then stored in textures and displayed on the world map. When the game is saved, each new minimap is ...
3
votes
1answer
69 views

How can I create random noise that is seamless across modular game assets?

Does anyone know how I can create a texture for a modular tile, such that when the tiles are arranged, random weathering effects such as scratches will be continuous across seams? An example photo ...
0
votes
0answers
35 views

Texture not getting loaded in FBX , exported using FBX SDK

I'm working on an OpenGLES2 project (iOS) in which I have to export a scene/model in to FBX format, so that it can be opened using FBX review app. I have made up to the point where the model getting ...
3
votes
2answers
844 views

What's the proper way to set up a texture atlas in Unity 3D?

I am using Unity3d (free) to make a game with user-defined content (i.e., load in a map, it'll build the level for you). Everything is working as expected, except for the rendering. Note the ...
1
vote
2answers
224 views

Easy method of obtaining texture coordinates for sprite sheet

In my (OpenGL ES 2.0 Android) game, I use 2 types of Sprite Sheets. In one type all sprites/frames are of equal size and in the other they are all different shapes and sizes. It is the latter one to ...
1
vote
0answers
225 views

Unity UpdateExternalTexture from MovieTexture windows crash

I'm trying to play a MovieTexture object with a SpriteRenderer object. My code is working fine on OSX. It crashes my windows 7 exported game, and play mode in Unity editor in windows 7. I am sure ...
8
votes
2answers
5k views

Unity: how to apply programmatical changes to the Terrain SplatPrototype?

I have a script to which I add a Terrain object (I drag and drop the terrain in the public Terrain field). The Terrain is already setup in Unity to have 2 PaintTextures: 1 is a Square (set up with a ...
-1
votes
1answer
40 views

What is the recommended way to store compressed textures in files?

Uncompressed textures can be stored in lossy formats such as jpeg and it saves a lot of hard drive space. However for obvious reasons you cannot do the same on compressed textures. So what is the ...
1
vote
1answer
404 views

Sphere Texture Mapping shows visible seams

As you can see from the above picture there is a visible seam in the texture mapping. The underlying mesh is a geosphere based on octahedron subdivisions. On that particular latitude, vertices have ...
10
votes
3answers
4k views

Premultiplied alpha, yea or nay?

Should I be using premultiplied alpha? Reading Tom Forsyth's article it seems a nobrainer. Premultiplied alpha (AKA additive blending) is superior in every sense. However, premultiplied alpha seems ...
5
votes
2answers
831 views

Is there a tool to automatically pack individual textures into one big png?

I'm currently working on a texture pack for minecraft (but this question is not restricted to that). All terrain textures are squared and stored in one big terrain.png. (FYI that's from Glimmar's ...
0
votes
1answer
1k views

Computing uv coordinates on a sphere approximated from an octahedron

Right now I'm texturing the octahedron with the formular from wikipedia(Finding UV on a sphere): UV Coordinates Wikipedia That unfortunately leads to heavy distortion right at the beginning, which of ...
1
vote
1answer
433 views

XNA - Drawing zoomed 2D sprites

I have a tile based game. Each tile texture is loaded and then I draw each one next to the other, forming a continuous background. I actually followed this tutorial for the xml files. ...
3
votes
5answers
1k views

XNA 2D Spritesheet drawing rendering problem

I'm making a tile-based game, using one spritesheet containing all tile graphics. Each tile has a size of 32x32 pixels. The main problem is: when I draw the tile to the screen, if the tile position ...
0
votes
0answers
89 views

Unity and ASTC support

I have configured in unity all compressed diffuse map textures as 6x6 ASTC blocks and normals and other maps as 4x4 blocks. However when I profile my game using Mali Graphics Debugger it tells me ...
0
votes
1answer
620 views

Update DirectX 11 Texture Created in Unity Asynchronously in the Native (c++) Plugin

Sorry for the long question :D tl;dr version :) Is it possible to update DirectX 11 textures created in Unity asynchronously in a native plugin (C++)? I've written a plugin that retrieves data from ...
1
vote
0answers
115 views

Should I bake all textures to a texture atlas in a game level?

I'm writing my own game engine using Java/OpenGL. I'm creating levels in Blender 3D and exporting them in a custom file format. I'm not going to be auto-generating any terrain - everything is going ...
1
vote
0answers
27 views

Create texture atlas from loaded textures - OpenGL LWJGL Java [duplicate]

In my program I have objects with different textures, that are in the same vbo. I cant have an array of samplers in my shaderprogram, so i have to use a texture atlas. I have seen some ways to make a ...
1
vote
2answers
101 views

How do 3d engines add textures to objects?

I was wondering how 3d engines like Unity or OpenGL added textures to objects. Example: How would Unity add this texture to the side the arrow is pointing to?
2
votes
1answer
441 views

Generating mipmaps for volume texture

Does texconv from DirectxTex support generating mipmaps for volume textures? If not what are the other alternatives? I am asking because I have tried to create the mipmaps by using textconv.exe -m 3 ...
0
votes
1answer
176 views

Problem with ID3D11DeviceContext::CopyResource method - How to properly read a texture CPU-side?

I am trying to make a full copy from a render target texture to a staging one but it seems my data length ends up being only 4 in length instead of 921600 (1280 * 720). Here is my textures ...
4
votes
1answer
232 views

Creating rectangles from the inner part of a texture2D

This may be hard to understand, but I'll do my best. You will see that the first image is a normal Mario, and the other is the result I am looking for. I'm trying to find a way to extract ...
0
votes
1answer
80 views

Is there anyway I can make a plane visible from both sides?

In Unity i have a model of a tree with leaves made of a plane and a texture, when I upload it to unity the texture is only visible on one side so how can I change it to be visible from both sides ...
6
votes
4answers
5k views

Can't understand these UV texture coordinates (range is NOT 0.0 to 1.0)

I am trying to draw a simple 3D object generated by Google SketchUp 8 Pro onto my WebGL app, the model is a simple cylinder. I opened the exported file and copied the vertices positions, indices, ...
0
votes
1answer
3k views

Rendering Texture Quad to Screen or FBO (OpenGL ES)

I need to render the texture on the iOS device's screen or a render-to-texture frame buffer object. But it does not show any texture. It's all black. (I am loading texture with image myself for ...
27
votes
5answers
21k views

How to avoid texture bleeding in a texture atlas?

In my game there is a Minecraft-like terrain made out of cubes. I generate a vertex buffer from the voxel data and use a texture atlas for looks of different blocks: The problem is that the texture ...
0
votes
1answer
28 views

problems with imported texture

I have done a texture in GIMP and imported it in Unity but for some reason the texture appears to be squashed in the sides. Image done in gimp: And here is what happens in Unity:
2
votes
2answers
480 views

How do I use transparent textures in panda3d?

I need to map a partially transparent texture on a flat quad with panda3d. With the quad as a canvas I'd like to create something like sprites positioned in the 3d coordinate system. I wanted to ...
1
vote
1answer
38 views

LWJGL not streching texture to quad

I'm having problems with texturing in LWJGL. The texture is not being stretched to a quad. As you can see, the texture is not being sized to the quad, marked with pink border. The problem doesn't ...
1
vote
1answer
146 views

Rendering Performance: num Draw Calls == num Texture Bindings

I'm making a game with Libgdx 1.6.4 and experience some lag issues on iPhone 4 and then discovered: // in the constructor GLProfiler.enable(); ... // in the render method Gdx.app.debug("draw ...
5
votes
2answers
765 views

How do I generate a mipmap for a texture loaded from a stream?

I am loading a Texture2d from a stream: public static Texture2D GetTexture(GraphicsDevice dev, System.Drawing.Bitmap bmp) { Texture2D texture; using (MemoryStream s = new MemoryStream()) ...
0
votes
1answer
269 views

Applying texture to a 3D object

I am trying to draw a 3D cube on the screen, using MonoGame. The cube was created in Blender and exported as an fbx file. The following is what the cube looks like in VS when opened in the editor: ...
2
votes
1answer
67 views

WebGL - send part of texture to GPU

I have a matrix of pixels in RAM memory, e.g. 1000x1000 pixels. I send it to GPU using gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 1000,1000, 0, gl.RGBA, gl.UNSIGNED_BYTE, pixels); Which works great. ...
0
votes
1answer
48 views

Ray tracing - texture and phong lighting

Other questione releated to my ray tracer implementation for iPad. If I have a polygon that has a texture and a material, how do I calculate the color using Phong lighting model? Is the texture used ...
31
votes
5answers
18k views

Should I use textures not sized to a power of 2?

In the early days of OpenGL and DirectX, texture sizes were required to be powers of two. This meant interpolation of float values could be done very quickly, using shifting and such. Since OpenGL ...
1
vote
1answer
151 views

Cubemaps turn black OpenGL GLSL Java LWJGL

Recently I tried to add cubemaps to my 3D-rendering engine. The objects with a cubemap now turn completely black. This is how I load my cubemap: public static int loadCubeMap(String filename) { ...
0
votes
1answer
209 views

Render Queue Sorting, HOW?

Recently I'm trying to implement a render queue sorting system, i.e., ordering my renderable objects in an array in such a way that the overhead of OpenGL state changes are minumum. After some ...
0
votes
0answers
27 views

Resolution of textures in OpenGL [duplicate]

I load texture from PNG file and render their using OpenGL. But I found the manual, what texture resolution must be divisible by a power of two. If I use a texture with a resolution of 800x600 pixels, ...
13
votes
1answer
8k views

Max texture size Android : which settings for 2048x2048?

I want to use a texture atlas of 2048 x 2048 in my game, and I would like to warn the users with a "too low" device to not download the game. With a texture atlas of this size, what requirements ...
1
vote
1answer
674 views

Unity3d change texture on terrain at specific vector3 at runtime

I need the terrain texture to change at certain positions depending on where trees etc. are randomly positioned at runtime. I'm struggling to find any solid information about how to take a particular ...
1
vote
2answers
205 views

Fading in and fading out animations

This is how I'm creating my player. Is there any way to start fading in and fading out for an amount of time when I get hit? private Texture tex = Game.res.getTexture("player"); public Player(Body ...
2
votes
1answer
502 views

Trying to extract file icons and use as a sprite texture

I'm trying to extract file icons from the files inside a folder (eg: Program Files), and have them set as my Sprite's texture. I extracted the file icons, converted them to Bitmaps and then to byte ...
1
vote
3answers
1k views

How to implement Index Buffer Object (IBOs) with texture coordinates in OpenGL?

I was using IBOs to render meshes (for example a cube) from wave-front files (.obj), without texture coordinates or normals, in OpenGL. Following this, I attempted to implemented texturing. The mesh ...
0
votes
1answer
580 views

Unity3d iOS build - where are the textures?

First time building and running my Unity3D app on my iPhone and it appears that all the textures are missing. Everything is just a solid block of whatever color I made it. When running in Unity I ...
0
votes
1answer
68 views

Sprites not showing (C# - XNA 4.0)

I'm following a tutorial from XNA GPA, but in my project, none of the sprites are loading. I've followed all of the instructions exactly, and the code works as expected when I copy it from my project ...
0
votes
0answers
23 views

How do I generated cubic UV coordinates for a mesh?

I'm trying to add a utility function to my game engine that generates cubic texture coordinates for a specified mesh. I've attempted to come up with my own algorithm but I can't get it to work ...
0
votes
1answer
55 views

Best approach for level specific textures

TL;DR: Best way to handle level-specific textures without overkilling memory usage and killing performance and keeping things clean in OpenGL for mobile (also lower-end devices) and desktop using ...
6
votes
1answer
297 views

Why does flipping 1 texture region cause an identical texture region to also be flipped? (libGDX)

Sorry for the bad title. I didn't know how else to explain it. The following is a portion of my code: public class AssetLoader { public static TextureAtlas spriteSheet; public static ...
1
vote
0answers
47 views

Texture shader using model's texture

I'm trying to get a model rendered in monogame using a texture shader. I'm using the code from this tutorial project: http://kgiannakakis.github.io/MonoGameEffects/ I created a simple textured cube ...
0
votes
1answer
57 views

XNA Texture mapping on model

I have a cube as my model and want to map a texture on every side of the cube. I have been searching for a while and most answers suggest using 3D max or using VertexPositionTextures. I am not ...