3d

3d engine for iPhone

Hi, all ! Which engine is best ? I've finded some engines : Ogre, Irrlicht and direct rendering from opengles (convert .obj files into buffer and rendering it). I've compiled Ogre - CeGUI works very ugly on iPhone... And Ogre has many-many files :) I need just rotate, zoom and object picking for static objects. Which method/engine is...

How do I create a rotating cube effect in Qt?

I have a QGraphicsView and a slide show of QGraphicsScenes, at the moment when the user switches to the next slide I just change the Scene that the View is looking at and it changes instantly to reflect that. What I would like to do it create some transition effects, such as the rotating cube or the slide in/out. However looking at the...

Recreating <BevelBitmapEffect> in a Pixel Shader/Other Method in WPF

Now that <BevelBitmapEffect> (amongst other effects) has been depreciated, I'm looking to see how I could re-create the exact same thing in a Shader Effect (including it's properties of BevelWidth, EdgeProfile, LightAngle, Relief and Smoothness). I'm somewhat familar with pixel shading, mostly just colors manipulation of the whole image...

WPF 3D: How to convert a single AxisAngleRotation3D into separate AxisAngleRotation3D?

I have a 3D viewport that uses the TrackBall of WPF 3D tool to rotate the object by mouse. As a result, I get a single AxisAngleRotation3D with Axis vector like (0.5, 0.2, 0.6) and Angle of e.g. 35. That's fine. What I would like to do is, as an alternative, to give user the ability to rotate the object by individual axis (i.e. x, y, z)...

How can I develop 2D bmp to 3D Ball

I develop a 2D to 3D android application. but It will not work Anyway I've used this library import javax.microedition.khronos.egl.EGLConfig; import javax.microedition.khronos.opengles.GL10; import android.app.Activity; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.opengl.GLSurfaceView; import an...

Android - Draw 3D then 2D with openGL ES

How can i draw a HUD (Text or Bitmaps) after drawing some 3d stuff in openGL ES ?? I tried this: private void switchTo2D(GL10 gl){ gl.glDisable(GL10.GL_DEPTH_TEST); gl.glMatrixMode(GL10.GL_PROJECTION); gl.glPushMatrix(); gl.glLoadIdentity(); gl.glMatrixMode( GL10.GL_PROJECTION ); gl.glLoadIde...

How to get the vertices of a polygon described by planes

This is a repost of a question that went unanswered basically I am trying to model a map that has the following format: Each brush defines a solid region. Brushes define this region as the intersection of four or more planes. Each plane is defined by three noncolinear points. These points must go in a clockwise orientation: 1--2-----...

Understanding the behavior of IDirect3DDevice9::Present when it blocks for vsync

I'm developing a scientific application that has to estimate (as best as possible) the time difference between an object getting drawn in the video back buffer and the point at which that object actually becomes visible on the screen. In other words, how DirectX on Windows XP+ deals with monitor's vertical refresh cycle. I'll start by s...

How to use a matrix to rotate the reference system of a vector relatively to another?

Real-life case (helps understand the question) I am building a device that can freely rotate around all its axis (x, y, z) and is equipped with: an accelerometer (A) that gives me a vector pointing to the centre of the Earth (Va) a 3D magnetometer (M) that gives me the direction of the magnetic field of the Earth (Vm) The two vector...

Calculate 3D rotation of a point

How do I calculate the pitch, yaw, and roll angles for a point in 3D space? I'm working on a game where the player character must face towards an object that's flying around. ...

Split geometry or use multiple materials in order to quickly change vizualized colors in (WPF) 3D scene

Hi 3D guru's out there, I'm developing a WPF application that uses 3D for vizualizing a pipe system. At a certain moment it must be possible to color those pipes according to a value on certain points. See the figure below. This shows a 2D cross section overview of an elbow and a pipe attached to each other. On this pipe some points ...

What are my options for 3D plotting in Python?

It also must be redistributable. ...

3D rotation with Axis & Angle

I know 3D rotation is well documented on SO and many other sites, but despite reading countless explanations I still haven't figured out where I'm going wrong. My background is in art and design, not math and programming, and I'm never really certain if my angle of attack (no pun intended) is the right one. Rather than paste a patchwork ...

3-D engines in flex

Hi, I just wanted to know if there are 3-D engines available for flex other than PaperVision? Just out of curosity.... ...

Mapping points onto a 2D texture

Hey this may sound simple but it escapes me, I have a list of 3D points (including negative positions) that I would like to map onto a 2D Texture. I'm trying to figure out how to map the points appropriately to the texture and how it differs if it has a specific width/height. Thanks ...

OpenGl surface&texture

I have: 3d pointset, wich calculated from 3d reconstruction process from N frame. sample frame snapthot (for example first frame when camera in (0,0,0)) 3d to 2d corresponds I want: create triangulation of point set and put texture (frame snaphot) on it. How can i create this triangulation + texture via OpenGL? I can't find any g...

Voxel 3d "grid"

Hey there, What in your opinions, would be the best language to create a large (massive..) 3d voxel based grid in? i.e. like Minecraft (http://www.minecraft.net/) I note that Minecraft was created in Java, this obviously has it's disadvantages. Help me make a decision! :) p.s. This is community wiki, so no points gained, just after ...

Searching for 3d graphics library preferably java based to solve my problems

I need a 3d graphics library that is free and Java based for offline ( batch mode) 3d graphics processing ( not gaming application). I need to write programs or scripts that would perform a variety of operations working with the higher level scene graph of the 3d model. Note it must work with well known 3d formats such as 3ds Max (.max f...

HDR Rendering Pipeline DIfferences

What's the difference between a typical HDR rendering pipeline and a normal rendering pipeline? (i.e. bpp differences? Some additional post processing step?) ...

CAD like 3D geometry C/C++ library

Dear all, I am looking for a good 3D CAD like library. I need basic geometry shapes (cube, sphere, torus etc.) and the library should make the surface mesh - based on the shapes and some boolean operations. I like VTK. It has great source objects, but unfortunatelly it has no intersection and union filters/commands. I have found many ...