framebuffer
How to get access to main screen/OpenGL buffer in Android?
I\'d like to get access to the main (O开发者_运维技巧penGL) screen in Android to implement some overlay 3D effects.[详细]
2023-03-05 20:05 分类:问答iPhone opengl ES copy framebuffer into the renderbuffer
Hy folks, I\'m working on an animation in opengl es. The animation should draw squares. This works already, but how can I copy the content from the Framebuffer into the renderbuffer, the problem is t[详细]
2023-03-02 16:40 分类:问答glFramebufferTexture2D fails on iPhone for certain texture sizes
When I try to attach a texture to a framebuffer, glCheckFramebufferStatus reports GL_FRAMEBUFFER_UNSUPPORTED for certain texture sizes.I\'ve tested on both a 2nd and 4th generation iPod Touch.The size[详细]
2023-03-02 04:50 分类:问答How to use depth testing when rendering to an offscreen buffer then onto texture
I\'m rendering my scene to a texture. This works fine except that depth testing does not work. How do I enable depth testing if rendering to an offscreen texture? I\'m using the FrameBuffer class http[详细]
2023-02-28 04:30 分类:问答glReadPixels() slow on reading GL_DEPTH_COMPONENT
My application is dependent on reading depth information back from the framebuffer. I\'ve implemented this with glReadPixels(0, 0, width, height, GL_DEPTH_COMPONENT, GL_FLOAT, &depth_data)[详细]
2023-02-20 19:47 分类:问答Save a texture to a file in Android & OpenGL ES 2.0
As far as I understand sending a texture to OGLES2 is done using GLUtils.texImage2D, 开发者_Go百科i.e. I upload the texture to the GPU. How do I send it back to Android then (download it from the GPU)[详细]
2023-02-16 12:07 分类:问答Android: How can you get framebuffer (screenshot) on rooted device?
I tried : process = Runtime.getRuntime().exec(\"su -c cat /dev/graphics/fb0 > /sdcard/frame.raw\");[详细]
2023-02-10 17:20 分类:问答Paint Pixels to Screen via Linux FrameBuffer
I was recently struck by a curious idea to take input from /dev/urandom, convert relevant characters to random integers, and use those integers as the rgb/x-y values for pixels to paint onto the scree[详细]
2023-02-10 05:41 分类:问答Scaling a texture with a Framebuffer
My goal is to be able to scale textures when they are loaded, so I don\'t have to do it on every frame the sprite gets rendered. I figured the best method would be to render the scaled texture onto an[详细]
2023-02-09 04:45 分类:问答OpenGL framebuffer operations, drawPixels fails with Alpha channel
I\'m messing around with the framebuffer with OpenGL and JOGL. I have a Graphics obje开发者_Python百科ct, in which I draw.[详细]
2023-02-07 19:25 分类:问答