Tagged Questions

2
votes
1answer
94 views

Proper way to maintain Vertex Buffer Objects

I've started learning WebGL, currently I'm building a 2D lighting system, but there is some confusion going on inside my head. How the lighting works is based on this tutorial ...
0
votes
0answers
52 views

Box2d and opengl units [closed]

I'm trying to use Box2D with my WebGL renderer and I've got a strange behavior : My dynamic bloc is floating aside walls, it's look like the physic world is bring forward the graphic world. I know ...
3
votes
2answers
1k views

How to animate a model in WebGL?

I created a human model in Blender, exported the vertices and indices into a JSON file and render the model in a browser using WebGL. Now I created a walk and jump animation in Blender and would like ...
3
votes
2answers
331 views

What is UVIndex and how do I use it on OpenGL?

I am a noob in OpenGL ES 2.0 (for WebGL) and I'm trying to draw a simple model I've made with a 3D tool and exported to .fbx format. I've been able to draw some models that only have: A vertex buffer, ...
0
votes
3answers
1k views

How do I create menu with text in OpenGL?

How would I go about creating a menu system with fonts in OpenGL? I want to make a dungeon crawler and will need a menu for inventory and stats for the weapons. I can draw a world made out of blocks ...
5
votes
4answers
2k views

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

Hey, hello guys, 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 ...
3
votes
1answer
2k views

How to create a perspective field of view matrix?

Hey, hello. I am learning a little of WebGL (OpenGL ES 2.0) through the http://learningwebgl.com tutorials, but it uses a third party library to create the View, Projection and transformation matrices ...
7
votes
2answers
1k views

Missing features from WebGL and OpenGL ES

I've started using WebGL and am pleased with how easy it is to leverage my OpenGL (and by extension OpenGL ES) experience. However, my understanding is as follows: OpenGL ES is a subset of OpenGL ...
4
votes
1answer
2k views

Rendering 2d sprites into a 3d world?

In opengl how do I render 2d sprites in opengl given that I have a png of the sprite? See images as an example of the effect I'd like to achieve. Also I would like to overlay weapons on the screen ...