This is how I’m doing it. I define a texture variable (I use Apple’s Texture2D class, but you can use an OpenGL texture id if you want), and a frame buffer: Texture2d * texture; GLuint textureFrameBuffer; Then at some point, I create the texture, frame buffer and attach the renderbuffer. This you only need to … Read more
Is the texture initialized when you call glTexSubImage2D? You need to call glTexImage2D (not Sub) one time to initialize the texture object. Use NULL for the data pointer, OpenGL will then initialize a texture without copying data. answered EDIT You’re not supplying mipmaping levels. So did you disable mipmaping? glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILER, linear_interpolation ? GL_LINEAR : … Read more