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2014/10/15 ¤U¤È 10:09:46

iphone Programming Glossary: gl_framebuffer_oes

OpenGL ES Render to Texture

http://stackoverflow.com/questions/1024603/opengl-es-render-to-texture

contentSize CGSizeMake width height create framebuffer glGenFramebuffersOES 1 textureFrameBuffer glBindFramebufferOES GL_FRAMEBUFFER_OES textureFrameBuffer attach renderbuffer glFramebufferTexture2DOES GL_FRAMEBUFFER_OES GL_COLOR_ATTACHMENT0_OES GL_TEXTURE_2D.. glBindFramebufferOES GL_FRAMEBUFFER_OES textureFrameBuffer attach renderbuffer glFramebufferTexture2DOES GL_FRAMEBUFFER_OES GL_COLOR_ATTACHMENT0_OES GL_TEXTURE_2D texture.name 0 unbind frame buffer glBindFramebufferOES GL_FRAMEBUFFER_OES 0 Every.. GL_FRAMEBUFFER_OES GL_COLOR_ATTACHMENT0_OES GL_TEXTURE_2D texture.name 0 unbind frame buffer glBindFramebufferOES GL_FRAMEBUFFER_OES 0 Every time I want to render to the texture I do glBindFramebufferOES GL_FRAMEBUFFER_OES textureFrameBuffer ... GL commands..

Can example “GLImageProcessing” work with multi filters

http://stackoverflow.com/questions/4375479/can-example-glimageprocessing-work-with-multi-filters

glLoadIdentity glScalef wide high 1 glBindTexture GL_TEXTURE_2D Input.texID bind result fbo glBindFramebufferOES GL_FRAMEBUFFER_OES resultFBO glViewport 0 0 result.wide result.s result.high result.t glClear GL_COLOR_BUFFER_BIT glDisable GL_BLEND process.. 1 glActiveTexture GL_TEXTURE0 process 3 adjust hue process 4 mask save to buffer bind system rbo glBindFramebufferOES GL_FRAMEBUFFER_OES SystemFBO glCheckError iphone opengl es share improve this question Using multitexturing it should be possible to find.. 0 GL_RGBA width height 0 GL_RGBA GL_UNSIGNED_BYTE NULL glGenFramebuffersOES 1 ResultFBO glBindFramebufferOES GL_FRAMEBUFFER_OES ResultFBO glFramebufferTexture2DOES GL_FRAMEBUFFER_OES GL_COLOR_ATTACHMENT0_OES GL_TEXTURE_2D ResultTexture 0 bind the result..

GLImageProcessing Multiple Filters?

http://stackoverflow.com/questions/6425861/glimageprocessing-multiple-filters

0 GL_RGBA wide high 0 GL_RGBA GL_UNSIGNED_BYTE NULL glGenFramebuffersOES 1 ResultFBO glBindFramebufferOES GL_FRAMEBUFFER_OES ResultFBO glFramebufferTexture2DOES GL_FRAMEBUFFER_OES GL_COLOR_ATTACHMENT0_OES GL_TEXTURE_2D ResultTexture 0 bind the result.. NULL glGenFramebuffersOES 1 ResultFBO glBindFramebufferOES GL_FRAMEBUFFER_OES ResultFBO glFramebufferTexture2DOES GL_FRAMEBUFFER_OES GL_COLOR_ATTACHMENT0_OES GL_TEXTURE_2D ResultTexture 0 bind the result FBO glBindFramebufferOES GL_FRAMEBUFFER_OES ResultFBO.. GL_FRAMEBUFFER_OES GL_COLOR_ATTACHMENT0_OES GL_TEXTURE_2D ResultTexture 0 bind the result FBO glBindFramebufferOES GL_FRAMEBUFFER_OES ResultFBO apply 1st filter glViewport 0 0 wide high filter mode .func flipquad val restore original frame buffer object..

Undo drawing in Paint Application

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

NSUInteger eraseMax 64 NSUInteger vertexCount 0 count i EAGLContext setCurrentContext context glBindFramebufferOES GL_FRAMEBUFFER_OES viewFramebuffer Convert locations from Points to Pixels CGFloat scale 1.0 self.contentScaleFactor start.x scale start.y..

Record the drawing as a m4v video file - OpenGL

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

NSUInteger vertexMax 64 NSUInteger vertexCount 0 count i EAGLContext setCurrentContext context glBindFramebufferOES GL_FRAMEBUFFER_OES viewFramebuffer Convert locations from Points to Pixels CGFloat scale self.contentScaleFactor start.x scale start.y scale.. 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..