java - glDrawBuffers should have flipped IntBuffer? -
i have following code: intbuffer drawbuffers = utils.createintbuffer(2); int bfs[] = {gl30.gl_color_attachment0, gl30.gl_color_attachment1}; for(int = 0; < 2; i++) drawbuffers.put(bfs[i]); drawbuffers.flip(); gl20.gldrawbuffers(drawbuffers); if flip intbuffer int status = gl30.glcheckframebufferstatus(gl30.gl_framebuffer); don't equal gl_framebuffer_complete , if don't flip status right, black texture instead of desired texture, looked throught code on , on 2 days now, best bet part of code somehow wrong, rest seems ok. should intbuffer flipped before using in gldrawbuffers(intbuffer) ? yes, buffers should flipped before being passed lwjgl. the underlying gl api expects array functions take java buffer. size of array parameter in gl's c language bindings, hidden in java because lwjgl calculates difference between current position , end position. unless flip java.nio.buffer , sets "current" position beginning of buffer,...