3d

Trying to construct a 3D object from a stack of 2D images in VB.NET

I have a stack of 2D dicom images and want to convert to a 3D object using VB.NET. I suppose I can solve it using openGL but any clue would help a lot. Do you know a free (or at least cheap) pack to do it? Would you help me to think my own solution. Thanks... ...

Loading material parameteres from FBX in XNA

I've got some material parameters stored in the FBX file (DiffuseFactor, ShininessExponent, SpecularFactor and others), but I can't get to them using Effect.Parameters nor BasicEffect (they've got only the basic stuff - like EmmisiveColor or alpha). I know, that I can try to write a Effect-derived class, but is there any other way? A bui...

Level of Detail for 3D terrains/models in Mobile Devices (Android / XNA )

I am planning to develop for WP7 and Android. What is the better way to display (and traverse) 3D scene/models in term of LoD? The data is planned to be island-wide (Singapore). 1) Real-Time Dynamic Level of Detail Terrain Rendering 2) Discrete LoD 3) Others? And please advice some considerations/algorithms/resources/source codes. som...

ActionScript Measuring 3D Depth

i'm having a difficult time understanding how to control the z property of display objects in a 3D space. i know how depth works, but what i don't understand is how i can get the maximum depth, or the number at which the display object just disappears into the background. i assume depth is based on the stage's width and height, and tha...

How can I render 3d graphics in a directshow source filter

I need to render a simple texture mapped model as the output of a directshow source filter. The 3d rendering doesnt need to come from Direct3D, but that would be nice. OpenGL or any other provider would be fine assuming I can fit it into the context of the DirectShow source filter. visual studio 2008 c++ ...

3D array initialization

I need to represent some spatial points: x,y,z when I try to initialize the array like this: int[][][] points { { {100, 120, 10}, {100, 120, 18}, ... } } I got an error: Uncompilable source code - not a statement where is the error? ...

Implement a 3D paint application: how to start?

Hello, I want to implement a paint-like application, which will enable kids to create and work with 3 dimensional objects. How can I start? What is the right approach? WPF, OpenGL, or Direct3D? (I prefer C# solutions, but C++ is OK also). Thank you all in advance! --NewB ...

Generating Anaglyphs (3D images)

I'm planning to make some simple 3d shapes into anaglyphs that will be in 3d when viewed with 3d glasses (red cyan). there's lots of info for converting pictures into 3d, but none for spinning 3d shapes. Has anyone got any experience/ideas in how to do this? ...

Wpf Volumetric effect ?

I would like to know if WPF support 3D Volumetric Effects like "spotlight (sort of smoke effect like in nightclub)" Typically, I would like to set a brush (sort of mask or filter : color + shape ) and see "light ray" from light source to any obstacle.. i'm not sure wpf can handle that, if it doesn't what's the best software to do that...

Alternative to ZAM 3D editor for Windows 7

I'm looking for some 3D editor that allows to create 3D objects and export them to XAML format. Because I'm under Windows Seven ZAM 3D editor is no option for me. I need to create relatively simple(but good looking) 3D objects, no game animations. I prefer simple and intuitive GUI, so Blender is no option for me... It would be good if ...

How to intersect a Ray with a terrain model?

Hey, I am currently designing an RTS Game in XNA. So far I have a Terrain Model generated from a Heigthmap and some Units that are drawn on it. The next step would be to give the units commands on where to move. To do that I have to calculate the exact position of the terrain behind the cursor when it's clicked. For Units selection I ...

android 3D desktop

Today I was looking at and example of a 3d desktop in Android (see here). This got me a bit excited, so I wanted to make one. Unfortunately, I'm not sure where to begin. How could I get started developing a 3d solution like this? Any direction would be greatly appreciated. ...

WPF 3D Editor which look like 3DSMAX

Hi, Is there any source for a WPF 3D editor (4 viewport : perspective,front,top,left) Thanks ...

Open-source image processing library that supports high level 3D algorithms ?

High, I need to do some image manipulations on CT volume images. Mainly segmentations. Which open-source library supports 3D algorithms - Filtering, edge detection, deformable objects and so ? Language is not an issue at the moment. 10x ...

What is the point of heightmaps?

I've been pondering this question awhile now... many 3d engines support advanced terrain rendering using quadtrees, LOD... all the features you expect. But every engine I've seen loads height data from heightmaps... grayscale bitmaps. I just can't understand how this is useful - each point in a heightmap can have one of 256 values. But w...

Using CreateOrthographicOffCenter in XNA

I'm trying to figure out how to draw graphics in XNA, and someone else suggested this. But before I attempt to use this... If I create and use this camera, and set LEFT,TOP to 0 and WIDTH=256 and HEIGHT=240, anything I render to the screen will use these coordinates? So a box with a width and height of 1, if set to 0,0 will take up spa...

Moving 2d objects on a 3d plane - AS3

I have a 2d plane rotated on its x axis, with 2d display objects I want to move around on the plane. Its pretty similar to a chess board: http://static.open.salon.com/files/chess011237853612.jpg The board is a rotated rectangle, and the pieces are just 2d display objects. Whats the easiest way to manipulate those objects so they appe...

WPF 3D extrude "a bitmap"

Hi, I'm looking for a way to simulate a projector in wpf 3D : i've these "in" parameters : beam shape : a black and white bitmap file beam size ( ex : 30 °) beam color beam intensity ( dimmer ) projector position (x,y,z) beam position (pan(x),tilt(y) relative to projector) First i was thinking of using light object but it seem tha...

Anyone know were i could find an algorithm or have a algorithm they could share to split a sphere (mesh) into random parts?

I have a list a vertices and a list of triangles. I'd like to split this single mesh into, say 5, randomly shaped meshes. When the 5 randomly shaped meshes are in place the sphere should all line up and look like 1 solid mesh. I need a algorithm to do this programmatically, not a tool to do it form me. Any pointers would be great! ...

How to get collision between two meshes in j2me 3d game

Hi, I am making an application for 3d ball balancing game on j2me, I need to move my 3d ball on my ball path. I can get both ball and path object as a mesh from m3g file. How I will know that my ball is in the path or not ? Is there any notification I can get for interaction of two meshes ? Thanks in advance... ...