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2014/10/15 ¤U¤È 10:09:48

iphone Programming Glossary: gl_renderbuffer_oes

Draw to offscreen renderbuffer in OpenGL ES (iPhone)

http://stackoverflow.com/questions/1853551/draw-to-offscreen-renderbuffer-in-opengl-es-iphone

GL_FRAMEBUFFER_OES offscreenFramebuffer glGenRenderbuffersOES 1 offscreenRenderbuffer glBindRenderbufferOES GL_RENDERBUFFER_OES offscreenRenderbuffer glFramebufferRenderbufferOES GL_FRAMEBUFFER_OES GL_COLOR_ATTACHMENT0_OES GL_RENDERBUFFER_OES offscreenRenderbuffer.. GL_RENDERBUFFER_OES offscreenRenderbuffer glFramebufferRenderbufferOES GL_FRAMEBUFFER_OES GL_COLOR_ATTACHMENT0_OES GL_RENDERBUFFER_OES offscreenRenderbuffer But I'm confused on how to render the storage. Apple's documentation says to use the EAGLContext renderBufferStorage.. then I can't seem to get it to display. Here's the code this is in the initialization section glRenderbufferStorageOES GL_RENDERBUFFER_OES GL_RGB8_OES backingWidth backingHeight and this is when I'm trying to draw to it and display it glBindFramebufferOES GL_FRAMEBUFFER_OES..

Why is my EAGLVIew not rendering anymore in iOS 4.2?

http://stackoverflow.com/questions/4270320/why-is-my-eaglview-not-rendering-anymore-in-ios-4-2

1 _viewRenderbuffer glBindFramebufferOES GL_FRAMEBUFFER_OES _viewFramebuffer glBindRenderbufferOES GL_RENDERBUFFER_OES _viewRenderbuffer _context renderbufferStorage GL_RENDERBUFFER_OES fromDrawable CAEAGLLayer self.layer glFramebufferRenderbufferOES.. _viewFramebuffer glBindRenderbufferOES GL_RENDERBUFFER_OES _viewRenderbuffer _context renderbufferStorage GL_RENDERBUFFER_OES fromDrawable CAEAGLLayer self.layer glFramebufferRenderbufferOES GL_FRAMEBUFFER_OES GL_COLOR_ATTACHMENT0_OES GL_RENDERBUFFER_OES.. fromDrawable CAEAGLLayer self.layer glFramebufferRenderbufferOES GL_FRAMEBUFFER_OES GL_COLOR_ATTACHMENT0_OES GL_RENDERBUFFER_OES _viewRenderbuffer glGetRenderbufferParameterivOES GL_RENDERBUFFER_OES GL_RENDERBUFFER_WIDTH_OES _backingWidth glGetRenderbufferParameterivOES..

openGL ES retina support

http://stackoverflow.com/questions/4504614/opengl-es-retina-support

for the color renderbuffer attached to the CAEAGLLayer using code like the following glGetRenderbufferParameterivOES GL_RENDERBUFFER_OES GL_RENDERBUFFER_WIDTH_OES backingWidth glGetRenderbufferParameterivOES GL_RENDERBUFFER_OES GL_RENDERBUFFER_HEIGHT_OES backingHeight.. GL_RENDERBUFFER_OES GL_RENDERBUFFER_WIDTH_OES backingWidth glGetRenderbufferParameterivOES GL_RENDERBUFFER_OES GL_RENDERBUFFER_HEIGHT_OES backingHeight you should see that the width and height of the renderbuffer on a Retina display..

Undo drawing in Paint Application

http://stackoverflow.com/questions/6689600/undo-drawing-in-paint-application

glVertexPointer 2 GL_FLOAT 0 eraseBuffer glDrawArrays GL_POINTS 0 vertexCount Display the buffer glBindRenderbufferOES GL_RENDERBUFFER_OES viewRenderbuffer context presentRenderbuffer GL_RENDERBUFFER_OES at last restore the mixed mode glBlendFunc GL_ONE GL_ONE_MINUS_SRC_ALPHA.. vertexCount Display the buffer glBindRenderbufferOES GL_RENDERBUFFER_OES viewRenderbuffer context presentRenderbuffer GL_RENDERBUFFER_OES at last restore the mixed mode glBlendFunc GL_ONE GL_ONE_MINUS_SRC_ALPHA This code is not efficient and it has so many faults..Have..

Record the drawing as a m4v video file - OpenGL

http://stackoverflow.com/questions/9661259/record-the-drawing-as-a-m4v-video-file-opengl

2 GL_FLOAT 0 vertexBuffer glDrawArrays GL_POINTS 0 vertexCount Display the buffer glBindRenderbufferOES GL_RENDERBUFFER_OES viewRenderbuffer context presentRenderbuffer GL_RENDERBUFFER_OES Erases the screen void erase EAGLContext setCurrentContext.. vertexCount Display the buffer glBindRenderbufferOES GL_RENDERBUFFER_OES viewRenderbuffer context presentRenderbuffer GL_RENDERBUFFER_OES Erases the screen void erase EAGLContext setCurrentContext context Clear the buffer glBindFramebufferOES GL_FRAMEBUFFER_OES.. viewFramebuffer glClearColor 0.0 0.0 0.0 0.0 glClear GL_COLOR_BUFFER_BIT Display the buffer glBindRenderbufferOES GL_RENDERBUFFER_OES viewRenderbuffer context presentRenderbuffer GL_RENDERBUFFER_OES The GL view is stored in the nib file. When it's unarchived..