Rendering decals on 3d meshes
As in question, what are the best techniques for rendering lots (lots!) of decals on multiple meshes (which can move) and on terrain? ...
3d
How to get Yaw, Pitch and Roll from a 3D vector
Hi all, I have a direction vector that applied to a position gives me the point at which the camera should look. How can I get from that yaw, pitch and roll in order to use glRotatef properly? Thanks in advance ...
Generate 2D cross-section polygon from 3D mesh
I'm writing a game which uses 3D models to draw a scene (top-down orthographic projection), but a 2D physics engine to calculate response to collisions, etc. I have a few 3D assets for which I'd like to be able to automatically generate a hitbox by 'slicing' the 3D mesh with the X-Y plane and creating a polygon from the resultant edges. ...
Perf: Viewing thousands of images in Silverlight 3 on a 3D Wall
I currently work on a very cool Silverlight app that displays photos in a 3D wall space like the Wall3D demo that is thrown in with Blend 3. The problem I am currently facing is performance. The app works like this: As you scroll right or left the 3d photo wall rotates As each movement is made, the next column of photos are downloaded...
DirectX capabilities on different graphics cards
I'm writing a Direct3D application, using DirectX 9. Although it works on my PC, I need to make it work on a wide range of systems. I need to know what capabilities I can expect to see on other systems. Is there a list of the DirectX capabilities that graphics cards support? I've found one site, which I'll post as an answer, but it's...
Draw 2.5D or 3D Map with C# from lines.
I'm developing a turn-by-turn navigation software for Windows Mobile using C# and .NET CF. I'm able to draw a 2D maps by drawing lines. My problem is I would like to get a 2.5D map like in the picture. I tried non-affine transformation on the 2D rendered image but it is too slow for the Windows Mobile device we are targeting. Could anyon...
Reconstructing simple 3d enviroment(room) from photo
I have photo of a room with three walls and floor/ceiling or both. I am trying to reconstruct this room in 3d asking user for minimal input. Right now I use 8 points defined by user, angles of left and right wall(they can be quite different from 90) and one size "InLeftBottom-InRightBottom"(I need to have real size of this room for later...
Dynamically generate Triangle Lists for a Complex 3D Mesh
In my application, I have the shape and dimensions of a complex 3D solid (say a Cylinder Block) taken from user input. I need to construct vertex and index buffers for it. Since the dimensions are taken from user input, I cannot user Blender or 3D Max to manually create my model. What is the textbook method to dynamically generate such ...
Apply 3D rotation to iPhone view
I would like apply a 3D rotation on a view (in particular to a UILabel) in iPhone. What's the simplest way to do this? A code example will be much appreciated. ...
3D Animation in Java/J2ME?
how to do the 3D Animation in java? what are the packages to be needed? i am very newbie about this topic. Sample Code, Tutorials and articles are more thankful. Tell me how i have to start please? NOTE: its for Mobile Appication. ...
Generating 3D TV stereoscopic output programmatically
Do you know what would be the best approach to generate 3D output for one of these new "3D ready" televisions from software. Our application have some nice 3D visualizations, we want these to look nice. Also, how feasible is it to generate it from a Flash (Flex) app. ...
Does computer graphics have a practic use besides games/movies/pictures ?
Hello, I am learning Computer Graphics at the university and I'm trying to figure out the use of it ... and I fail. Only games and movies stick in to my mind, I'm sure there are other uses for, let's say, graphic algorithms, openGL, 2D and 3D, 3ds Max ... Is it useful later on ? Where do I need it ? Thank you ...
Cloning ID3DXMesh with declration that has 12 floats breaks?
I have the following vertex declration: struct MESHVERTInstanced { float x, y, z; // Position float nx, ny, nz; // Normal float tu, tv; // Texcoord float idx; // index of the vertex! float tanx, tany, tanz; // The tangent const static D3DVERTEXELEMENT9 Decl[6]; static IDirect3DVertexD...
Processing: how to load a 3d Blender model?
How can I load a 3-d Blender model into the Processing environment? ...
How can I make 3ds files' size smaller??
Hey all, Is there any way I can use to make the size of a 3ds file smaller?? I tried to change their length and width using 3dmax but the file size still the same?? I'm using the 3ds files in creating an OpenGl scene so I need to shrink their size as small as I can, any suggestions?? ...
What is the most mature library to render equirectangular images in Flash?
I have a series of equirectangular images. I'd like to display them in a custom Flash player so that the user could see the spherical nature of the images, and "look up", "look down", "look left/right" (or pan, zoom, etc). (Note that I have a long series of images, so the library must allow for dynamic loading of the images themselves,...
How to fix rotations in a Rubik's Cube?
I'm trying to create a Rubik's Cube in Flash & Papervision and i'm really stuck here. I'm up to the point where i can rotate any plane of cubes once, but after that...it's messed up because all local coordinate systems are messy. I dont really know where to go from here, can anybody give any advice on what do do? I'm not looking for 're...
More complex view matrix calculation required to composite 3d models with 2d video
I'm utilising some 2d / 3d tracking data (provided by pfHoe) to help integrate some 3d models into the playback of some 2d video. Things are working.... okay... but there's still some visible 'slipping' of the models against the video background and I suspect this is may be because the XNA CreatePerspective helper method isn't taking in...
How do I make a surf plot in MATLAB with irregularly spaced data?
I know I can create a 3D surface plot in MATLAB by doing: x = linspace(1,10,100); y = linspace(10,20,100); [X Y] = meshgrid(x,y); Z = X * Y; surf(X,Y,Z); But this requires that all the nodes for the height map generated line up. I have a set of data which has arbitrary points (x,y) and a height (z). Is there a simple way to plot a ...
WPF 3D Perspective camera question
I am working on a 3D flip control that can flip horizontally, vertically and can have any size and square or rectangular shape. While I have it working, I ran into a very odd issue with the perspective camera. When I create a MeshGeometry3D I scale to the proper ratio of the content. If the width > height, all is well. However, if he...