rendering

问题 I am writing an application which gets the data stream going to the printer (from Redmon) as input. The data stream has text rendered as monochromatic bitmap which printer would use to print it on the paper. I plan to parse this data stream and understand the text going to the printer. My application would parse the data coming from any windows application and going to the printer. The way I parse the data stream is by matching the pixel information (byte by byte) and if there is an exact

问题 Information: I have no knowledge of javascript. none. I'm curious if there's any way to determine when a webpage is completely loaded? Let's say I have a crawler, that uses webkit to render pages (and webkit's JS engine to parse any JS functions and finish processing the DOM etc), I'm curious if there's any way to know when a webpage is 'done' loading? What I consider to be done: 1) All scripts have finished executing. 2) No pending AJAX calls. 3) The DOM is completely processed and loaded

问题 I'm looking for a better way (or a note that this is the best way) to transfer a pixel coordinate to its corresponding ray direction from a arbitrary camera position/direction. My current method is as follows. I define a "camera" as a position vector, lookat vector, and up vector, named as such. (Note that the lookat vector is a unit vector in the direction the camera is facing, NOT where (position - lookat) is the direction, as is the standard in XNA's Matrix.CreateLookAt) These three

问题 I have a problem when conditional rendering a component in react native. it shows me this error message: JavascriptException: {"stack":"Error: failed to execute 'importScripts' on 'WorkerGlobalScope' And here's an example of my code principe export default class App extends Component { render() { return( {this.customRender()} ); } customRender() { var x = true; if(x) { return (<View />); } else return (<Text>False</Text>); } } 回答1: Guys i fixed the problem. First i disabled the Remote

问题 I want to map textures with correct perspective for 3D rendering. I am using barycentric coordinates to locate points on the faces of triangles. Simple affine transformation gave me that standard, weird looking result. This is what I did to correct my perspective, but it seems to have only made the distortion greater: three triangle vertices v1 v2 v3 vertex coordinates are v_.x v_.y v_.z texture coordinates are v_.u v_.v barycentric coordinates corresponding to vertices are b1 b2 b3 I am

问题 I have a .NET windows application that collects ink using Microsoft.Ink from Microsoft Tablet PC SDK and stores it in a database. That's working fine. Now I need to display this ink as an image in an ASP.NET application. Note that I don't need to capture any strokes in the web application. Just display the already captured strokes as an image. I don't know how to proceed. I think I can't use Renderer.Draw in a web page. Please help, friends EDIT: Thanks for the help. Here's the sample code if

问题 I'm building a module that is supposed to display images at a certain rate (not pre defined, but not very high - 10Hz max for the swapping of images). From my research I got to the conclusion that QGLWidget is the right tool for this task, after enabling vsync with openGL calls(SwapInterval family). Yet, I am not sure how to actually implement the swapping mechanisem - should I use a timer? If I set a timer for 333.3 ms(3 Hz), when the refresh rate is 60 Hz (16.67 per cycle, thus the timer is

问题 Similarly to this other question, I wonder which C# mesh-simplification libraries are available out there. My (I believe common) problem is to reduce the computational effort of rendering .stl meshes . 回答1: Humm... There is a person that created is own geometry library and aparently it is already done. The goals of this library seems to be what you are looking for: Implement basic geometric primitives and polygon mesh processing. Based on a robust numerical foundation. Target the .NET

问题 I'm creating an application that will read a unique format that contains sound "bank" and offsets when the sound must be played. Imagine something like.. Sound bank: (ID on the left-hand and file name on the right-hand side) 0 kick.wav 1 hit.wav 2 flute.wav And the offsets: (Time in ms on the left-hand and sound ID on the right-hand side) 1000 0 2000 1 3000 2 And the application will generate a new sound file (ie. wav, for later conversion to other formats) that plays a kick at first sec, a

问题 This time i'm having an issue with the actual rendering of my model. I can load it all through the Libgdx loadObj() function, and render it using GL10_Triangles, however i keep getting missing triangles in my model (it seems like only half the models are being rendered). I've tried the old ObjLoad function (commented out) and also the different render styles but nothing seems to work. And yes I have checked the model in Blender and the model is complete without missing faces. See the print