In general a framebuffer is a graphic hardware-independent abstraction layer used to display output to a monitor or display.
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Questions tagged [framebuffer]
1142 questions
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Can I specify a viewport per render target?
First my problem: I'm trying to render to multiple buffers in an FBO. I set multiple buffers using glDrawBuffers, and rendering to them using the appropriate gl_FragData. All good and well, but in my situation one of the buffers should be…
KillianDS
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glXCreateContextAttribsARB: fb config compatibility
OpenGL doc states that
If glXCreateContextAttribsARB succeeds, it initializes the context to
the initial state defined by the OpenGL specification, and returns a
handle to it. This handle can be used to render to any GLX surface
(window,…
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how to render android screen to a web page in realtime
i'm working on something to remote control android from web browser. something like canvas or flash will draw the android device's screen, and i want it to be very smoothly.
as i know, we can capture android screen using frame buffer. there a lot of…
Rain Lee
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Android surface flickering between buffers
I am having a problem with my Android system. It is running on a custom platform and when I boot up the device the screen flickers between the bootanim and the console "A N D R O I D " screen.
When the bootanim redraws itself it is visible but then…
Markus
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why take screen shot from framebuffer is very slow on android?
Taking screenshot from framebuffer with /dev/graphics/fb0 is very slow(200~300ms).
How can i make it faster?
byte[] request = formAdbRequest("framebuffer:");
user199403
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storing two data types in a single bigger data type
A bit of introduction to the problem,
I tried searching about this on google/stack before I post this but most of them were unclear.
I have a cortex-a8 based board on which I'm running a bare metal RTOS, The display (framebuffer) is a bit slow…
sgupta
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OpenGLES issues with framebuffer
Been dabbling with OpenGLES and having varying levels of success. My current problem is trying to load a .obj file. I found a great GLOBJLoader that I've been to implement in my current project but am not quite there yet.
Here is my code
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Matthew Hallatt
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Framebuffers, textures and glColor behavior in OpenGL/OpenGL ES
I apologize in advance if this question seems confused. The behaviour I am seeing makes no sense to me.
I have a Framebuffer rendering to a texture. I render solid rectangles of red, green, blue of varying opacity to this texture. I then render the…
Marc Butler
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openGL FBO copy to texture results in black/dark image
In my program it is necessary for me to do off-screen rendering. For that purpose I use a FBO. In order to see if the image I draw is the correct for testing purposes I copy it from the FBO to a texture then render the texture to a quad. The problem…
Ray
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Is a simple texture cheaper than an FBO with a texture attachment?
I'm manipulating image masks runtime.
Now I'm using a separate FBO to render the masked image to a texture, then draw the result to the screen.
I'm just wondering if this another approach would be cheaper (regarding memory):
Draw the image with a…
Geri Borbás
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How to avoid flickering with uncleared framebuffers (iOS)?
When I don't clear the default framebuffer, or just draw only a portion of it, I can see some flickering from previously drawn frames.
I can see that this is something connected to the iOS EAGLLayer renderbuffer policy, but I don't understand whats…
Geri Borbás
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What is faster? Framebuffer color attachment or full screen texture quad?
I want to draw fullscreen frames of a sequence, and switch between them fast. I saw that I could attach multiply color attachments to a framebuffer.
I'm wondering if it could be far cheaper to use renderbuffer attachments instead of the current…
Geri Borbás
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Using renderbuffer only (without framebuffer) to draw offscreen content?
Do I have to generate and bind a framebuffer for every renderbuffer I create?
Or is there a chance to create renderbuffer only (and map it to a texture or submit somehow to the sahders)?
I just want to render to a one channel buffer to create some…
Geri Borbás
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arm, Programming PL111 controller and printing characters on the LCD
I am trying to write a bare metal code to program PL111 LCD controller. I am using QEMU emulator set up for Realview ARM Cortex-A8. I earlier managed to print characters on the linux terminal window using QEMU's "-serial stdio" option.
I have gone…
san216
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Framebuffer object picking
I am trying to use a frame buffer for object picking and trying to use stbi_write_png to see what i'm rendering as this frame buffer is not going to be rendered to the screen. I want to use unsigned ints to determine the object id.
This is the frame…
BackSpace7777777
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