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Channel: advanced - openFrameworks

Create or choose window's size at app launch

@ioio wrote: Hello, is there a way to choose (or enter with keyboard) the main window’s size (and other variables) when launching open frameworks app ? with console ? Posts: 5 Participants: 2 Read...

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ofxSVG don’t compile in release mode (VS2017))

@joeseeba wrote: I’m failing to compile a project in Visual Studio 2017 in release mode. The project uses ofxSVG and the error seems to be from SvgTiny library file. Linker says this:...

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Piracy protection

@dicktom wrote: I’m developing an app for some clients. Part of the agreement is that they can only use it on one specific computer. Any suggestions of how I can ensure this? My first thought is to...

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Unknown array type in function cvarrToMat (OpenCV, example from ofDemystified...

@dan1 wrote: I’m trying to run the VideoMorphing example from the book “Mastering openFrameworks: Creative Coding Demystified”. github example With some minor syntax updates it looks like this: void...

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10-bit Displays

@jaeho wrote: Is there any way to use 10-bit color in oF? I need to get smoother color change frame by frame. Posts: 1 Participants: 1 Read full topic

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How to choose an audio track in a multi-language video?

@davidemania wrote: is there a way to select the desired audio track while playing a video with ofVideoPlayer? In the specific I am interested in GStreamer based players (used on Linux with OF...

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Help converting a shader from v120 to v150

@davidemania wrote: Hi, I am experimenting with ofxHapPlayer and it works well, but there is an issue that I would like to fix. When decoding HAPQ movies the addon uses a shader, that is written for...

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Casting shadows on transparent plane

@nicholasJay wrote: Hi, I need to cast shadows on a transparent plane in order to get only the shadow shown and not the material applied to the plane (I want it fully transparent). For example, is...

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Scalability accross cores

@fresla wrote: I am looking at creating a multi-depth-camera application where images from each camera are captured in a threaded process. The tests I have done so far show that a single camera...

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Camera with firewire not recognized in OSX 10.14 and USB-C

@parmendil wrote: Hi. Since I upgraded my computer to a new Macbook with USB-C, I’m dealing with a problem: my cameras with firewire are not being recognized by openFrameworks. In particular, I found...

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How to get user mask in ofxNI2

@Dazzid_of wrote: I’m using https://github.com/pierrep/ofxNI2 which works well in Mac ofv0.10.1 I am trying to find a way to extract the user pixels or shape to make a clean contourFinder with opencv....

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Selecting dedicated graphics card in OF

@Sam_McElhinney_io wrote: Has anyone tried implementing the solutions described here in an OF app? I particularly have OpenGL in mind, and wanting to force a PC platform to run the app on the correct...

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Sound to effect shapes

@Nessi wrote: Hello! I am new to openFrameworks. I have something a would love to do. But I dont know if it is possible to to with openFrameworks or not. Heres my question: Is it possible to use...

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Treating an irregular surface as a single canvas(Projection mapping)

@MaxBjorverud wrote: (topic withdrawn by author, will be automatically deleted in 24 hours unless flagged) Posts: 1 Participants: 1 Read full topic

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Get the audio sample buffer from an ofVideoPlayer

@joeseeba wrote: I need to manipulate the audio part of a webcam stream which is playing into an instance of an ofVideoPlayer. The best situation would be to get audio data directly from the audio...

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Help with alpha blending between 2 ofFbo

@sandufi wrote: (topic withdrawn by author, will be automatically deleted in 24 hours unless flagged) Posts: 1 Participants: 1 Read full topic

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Threaded image load inside class

@prandam wrote: I’m developing a slideshow of sorts that bring images from a database of thousands of images. I wrote some methods but I need the image load to be threaded and smooth using my video...

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How to generate TexCoord properly?

@pxt wrote: Hi! I have a question about texCoord. I would like to generate meshes with ofPath and using shaders (Bezier, and abstract shapes) also i would like to connect vertices randomly according...

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Open AI GPT-2 and openFrameworks

@prandam wrote: I need to generate texts using the most recent Open AI’s GPT-2 model – https://github.com/openai/gpt-2-output-dataset It could be possible to use it in openframeworks for real time...

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Render openGL screen to video file

@ofpixel wrote: Hi, i have an oF project in which I render a glsl fragment shader -> screen via the ofxFX addon. Now, I want to render the screen -> video file, either via grabbing screen pixels...

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OF_USE_LEGACY_VECTOR_MATH compiler error

@michif wrote: Hey all, i try to compile an old project with a lot of ofVe2f. when i set OF_USE_LEGACY_VECTOR_MATH to 1 i get a lot of error messages Shell Script Invocation Error Group like:...

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Slow performance when multiple ofTrueTypeFont's drawString calls

@sandufi wrote: Hello guys, So right now I have 5000 instances of a class ‘Word’ that in its draw function contains the method font.drawString from ofTrueTypeFont class. I have seen some people using...

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Render realTime Video in 4K

@pxt wrote: Hi! I need to render a 4K video. But i`ve a FPS problem. Now im sending a fbo as a texture to a SyphonRec. In small resolution it works fine, but if i want to render in FULL HD the frame...

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Slow pixel manipulation code

@prisonerjohn wrote: Hello, A couple of my students encountered an issue with a slow app, and I’m having trouble figuring out what’s going on. They are trying to port this Processing sketch that...

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Help understanding textureBufferInstancedExample

@Nestor wrote: Hi, I’m checking textureBufferInstancedExample to learn how to pass per-instance attributes to my shaders. In the vertex shader the color of each instance is referenced by an attribute...

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