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2014/10/15 ¤U¤È 10:09:44

iphone Programming Glossary: gl_depth_test

Drawing into OpenGL ES framebuffer and getting UIImage from it on iPhone

http://stackoverflow.com/questions/10936157/drawing-into-opengl-es-framebuffer-and-getting-uiimage-from-it-on-iphone

object x status UIImage renderImage int width 256 int height 256 EAGLContext setCurrentContext myContext glEnable GL_DEPTH_TEST clear color cyan glClearColor 0.0f 1.0f 1.0f 1.0f glClear GL_COLOR_BUFFER_BIT GL_DEPTH_BUFFER_BIT trying to draw some primitive..

OpenGL ES render to texture, then draw texture

http://stackoverflow.com/questions/1649222/opengl-es-render-to-texture-then-draw-texture

GL_FLOAT 0 myNormals glDrawArrays GL_TRIANGLES 0 numVerts Everything draws fine when it's rendered to the screen GL_DEPTH_TEST is enabled and is working great. Any suggestions as to how to fix this Thanks iphone opengl es render to texture share..

Request a DepthBuffer in OpenGL ES for iPhone

http://stackoverflow.com/questions/4361516/request-a-depthbuffer-in-opengl-es-for-iphone

I'm creating a 3D OpenGL ES view on the iPhone and want to set up a depth buffer so I can use it. I'm calling glEnable GL_DEPTH_TEST and such but because I haven't set up the z buffer it does nothing. I'm looking for an equivalent call to glutInitDisplayMode..

How can I improve the performance of my custom OpenGL ES 2.0 depth texture generation?

http://stackoverflow.com/questions/6051237/how-can-i-improve-the-performance-of-my-custom-opengl-es-2-0-depth-texture-gener

slower than it should be but I can't figure out why. In order to achieve the proper generation of this depth texture GL_DEPTH_TEST is disabled GL_BLEND is enabled with glBlendFunc GL_ONE GL_ONE and glBlendEquation is set to GL_MIN_EXT . I know that a..

Use of VAO around VBO in Open ES iPhone app Causes EXC_BAD_ACCESS When Call to glDrawElements

http://stackoverflow.com/questions/6240863/use-of-vao-around-vbo-in-open-es-iphone-app-causes-exc-bad-access-when-call-to-g

glViewport 0 0 backingWidth backingHeight directProgram use glBindVertexArrayOES directArrayObject glDisable GL_DEPTH_TEST glActiveTexture GL_TEXTURE0 glBindTexture GL_TEXTURE_2D videoFrameTexture Update uniform values glUniform1i videoFrameUniform.. 0 glDrawArrays GL_TRIANGLE_STRIP 0 4 program use glBindVertexArrayOES arrayObject glDisable GL_TEXTURE_2D glEnable GL_DEPTH_TEST CC3GLMatrix projection CC3GLMatrix matrix float h 4.0f self.frame.size.height self.frame.size.width projection populateFromFrustumLeft..