Does anyone know how I can achieve the following effect in OpenGL: Change the brightness of the rendered scene Or implementing a Gamma setting in OpenGL I have tried by changing the ambient parameter of the light and the type of light (directional and omnidirectional) but the result was not uniform. TIA. Thanks for your help, some a...
Are there any IDE's for developing HLSL code? The three key features I want are: 1) syntax highlighting 2) auto-complete 3) interaction debugging Visual Studio doesn't do any of these things, and it doesn't seem that RenderMonkey or FX Composer do either. Is there some IDE that I'm not aware of, or does one of these three IDE's actual...
I work on a (raytracer) graphics engine and during the development process I want to create a bunch of pictures describing algorithms in space. First I thought about 3D packages (like 3DSMax and others), then about 2D (like Illustrator and others). But it all seems to be an overkill... (I'd like to use Rhino 4.0 Evaluation, but it is an...
I have a polygon soup of triangles that I would like to construct a BSP tree for. My current program simply constructs a BSP tree by inserting a random triangle from the model one at a time until all the triangles are consumed, then it checks the depth and breadth of the tree and remembers the best score it achieved (lowest depth, lowes...
i am writing a game in C++ and have a level consisting of many seperate meshes, each with their own vertex buffer. i am using vmmlib ( brilliant free gl compat. vector/matrix library ) to create my frustum culler and testing it against the bounding sphere of every mesh in the level. sadly my level can consist of up to 800 meshes and iter...
I've got a bunch of 3D vertex positions & need to generate a convex hull containing them; does anyone know of any QHull bindings for .NET? or native 3D Delaunay triangulation algorithms? ...
Hello everybody! I have a request to display VRML models within a .NET application. Does someone know an easy way, maybe with standard .NET components, to achieve this? What are the issues I maybe have to face when representing VRML within an application? Thank you very much! Michael ...
I'm developing software that writes to a tiny LCD screen (less than 1" x 1"). I've got all the usual suspects - lines, filled polygons, fonts, etc. I remember, however, learning how to do fun vector manipulation in linear algebra many moons ago, and creating rotating wireframe objects. I'd like to do that again, but figured there must...
I'm looking for some good ideas for a simple 3d graphics program as my final project for an intro to computer graphics class. As for some background information, we'll be using opengl and will have a little over a month to work on it, so nothing too far-fetched. The simpler and "prettier" looking, the better. It does, however, require...
I'm looking for a simple file format to use for wireframe models. I am aware of VRML, u3D, etc, but these seem heavyweight for my needs. My criterea are: Must have a clear spec. Either open or very well established/documented. I only need (want) simple models - vertices and edges. I don't want to handle faces or objects. If the format ...
Given a point such as (0, 0, 0) and a vector like (x, y, z). What is the easiest way to align the negative Z-axis centered at (0, 0, 0) to point in the direction of this vector? Examples using OpenGL would be welcome, but not neccessary. ...
To all 4 Android developers out there :) Is it possible to create a simple 3D model (for example in 3DS MAX) and then import it to Android somehow? I work in Eclipse with Android plugin, if that's of any importance. If so, do you know any tutorials/resources explaining how to do it? ...
Hello world. Recently our team was facing the task to build the 2D slice between a plane and some set of 3D geometry (set of triangles). Google hasn't been as helpful as we have wanted it to be, so we turn our attention here to see if anyone has encountered this problem with a possible solution. Links are also wanted. Finding the inter...
I need to render quite alot (tens of thousands) images off-screen using OpenGL. I am running under Windows and using QT as a framework. the solution can be windows only, it doesn't really matter. From what I've found using Google there are a number of options for doing this This article which seems rather dated suggest a few ways, out o...
We generate graphs for huge datasets. We are talking 4096 samples per second, and 10 minutes per graph. A simple calculation makes for 4096 * 60 * 10 = 2457600 samples per linegraph. Each sample is a double (8 bytes) precision FP. Furthermore, we render multiple linegraphs on one screen, up to about a hundred. This makes we render about ...
After staring at this 3D cube and these triangles for a while I started wondering if there's any good reliable Javascript graphics library with basic 3D support. Any suggestion? ...
I am using Direct3D to display a number of I-sections used in steel construction. There could be hundreds of instances of these I-sections all over my scene. I could do this two ways: Using method A, I have fewer surfaces. However, with backface culling turned on, the surfaces will be visible from only one side. If backface culling i...
I'm currently creating a window system for XNA games from scratch. I'm developing primarily for Windows, but who knows what platforms I might support in the future. Feel free to answer if you know this for native Direct3D, since the performance semantics should be similar. If possible, consider what would change if the target platform wa...
I have a line (actually a cube) going from (x1,y1,z1) to (x2,y2,z2). I would like to rotate it so that it is aligned along another line going from (x3,y3,z3) to (x4,y4,z4). Presently I am using Math::Atan2 along with Matrix::RotateYawPitchRoll. Any better ways to do this? Edit: I think I've worded this post very badly. What I am actuall...
Seeing the full javascript rotating 3d cube, I was wondering, What are the most stunning javascript-only effects you've ever seen? ...