The documentation for SCNMaterialProperty.contents states that it is an animatable property and indeed I can perform a crossfade between two colors. However I’m unable to crossfade between two imag...

I have this: float xExponential = pow(xPingPong, 5); And is not working, claiming: ERROR: 0:53: No matching overload for call to function 'pow' Am I doin' something wrong? Developing for i...

I have a Canvas which I'm drawing to via WebGl. My Canvas is sized: 640 width x 480 height. Im drawing a simple square in the middle. However I was surprised to find that when it is drawn it looks...

I'm working on an application where I would like to take a single integer input (basically a color) and, using WebGL shaders, color a box with the given input. I planned, originally, to do this wit...

I am trying to run basic examples of OpenGL using QT Creator to give color to a window. However, I am getting error in the compilation when calling the OpenGL instruction: glClearColor(1.0,1.0,0.0,...

I have a situation that seems rather strange. I will try to provide enough details, so that someone smarter than me can explain this. Basically here is the setup: OS: Android 2.2 Froyo Device: SGS...

if (call.method.equals("createVideoRenderer")) { TextureRegistry.SurfaceTextureEntry entry = textures.createSurfaceTexture(); SurfaceTexture surfaceTexture = entry.surfaceTexture(); this.surface...

To avoid writing to a constant buffer from both the gpu and cpu at the same time, Apple recommends using a triple-buffered system with the help of a semaphore to prevent the cpu getting too far ahe...

I want to display some 3D models (.obj files) in an android app using android studio. The user enters some data and the models have to be placed relative to each other according to the user input....

Is there any faster way to access the frame buffer than using glReadPixels? I would need read-only access to a small rectangular rendering area in the frame buffer to process the data further in CP...

Is there any faster way to access the frame buffer than using glReadPixels? I would need read-only access to a small rectangular rendering area in the frame buffer to process the data further in CP...

I'm having a weird issue with my OpenGL/Skia Android Camera2 app. My Camera renders frames into a SurfaceTexture, which is a GL_TEXTURE_EXTERNAL_OES texture in OpenGL. I can then simply render this...

I'm trying to create a Camera2 CameraCaptureSession that is capable of four outputs: On-screen preview (SurfaceView, up to 1080p) Photo capture (ImageReader, up to 8k photos) Video Capture (MediaR...

I am trying to load an .obj file into my Android application and display it using OpenGL 2. You can find the file here: EDIT: I removed the file, you can use any .obj file that contains the values ...

I came across this FxAA shader that does anti-aliasing and seems to be working quite well. But, Somehow could not understand the logic. Can someone explain? [[FX]] // Samplers sampler2D buf0 = s...

From what I've read, it appears that OpenGL ES 2.0 isn't anything like OpenGL 2.1, which is what I assumed from before. What I'm curious to know is whether or not OpenGL 3 is comparable to OpenGL...

So I used very similar code from official Google Grafika Sample for video processing in my own app: https://github.com/google/grafika/blob/master/app/src/main/java/com/android/grafika/ContinuousCap...

I'm trying to build an overlay for an Android application that uses GLESv2. I've hooked eglSwapBuffers in order to insert my rending code just before the frame finishes. I'm able to do simple thing...

I was confused about the VBO, glGenBuffers(1, &positionBufferObject); glBindBuffer(GL_ARRAY_BUFFER, positionBufferObject); Besides GL_ARRAY_BUFFER, there are other target types: GL_ATOMIC_C...

I can't seem to find a clear answer on this, despite hours of googling. Can someone just tell me what's going on? I get errors saying things like, "version 140 is not supported." Is this my device ...

Is there a good way to draw standard Android View objects on top of a GLSurfaceView and synchronize the movement between the two layers? My layout looks like <FrameLayout> <RelativeLayout...

I've been able to use AVFoundation's AVAssetReader class to upload video frames into an OpenGL ES texture. It has a caveat, however, in that it fails when used with an AVURLAsset that points to rem...

I am new to java and opengl and still learning so forgive me for my ignorance. I have made an looming object apk file. Now i want to view the fps as the application is playing on my device. I have ...

I'm successfully generating my textures using GLUtils.texImage2D, but when I use the textures generated I get problems with my alpha: they are darker than wanted. after having checked several thin...

So there has been a lot of times where I needed to know what the enums returned by certain opengl operations are, to print them on the terminal to see what's going on. It doesn't seem there's any ...