Opengl 8 Bit Texture, However the hurdle we've hit is that we can't work out how to give this info to openGL.

Opengl 8 Bit Texture, Apr 21, 2013 · Passing an 8-bit alpha-only texture to GLSL Asked 13 years, 1 month ago Modified 13 years, 1 month ago Viewed 2k times Mar 29, 2013 · I'm pumping it with square array of 8 bit unsigned integers in GL_LUMINANCE mode (one 8 bit channel represents brightness of all 3 channels and full alpha), but it is IMO vastly ineffective, because the onlu values in the array are 0x00 and 0xFF. Any such format could represent only values whose decimal representation ended with “5” in the seventh or earlier digit of the fractional part. The format in your case is GL_LUMINANCE (in later versions of OpenGL this would be GL_RED just FYI) well and type, I'm sorry to have to tell you, that there's no 4 bit per pixel unpacking type available in OpenGL. May 4, 2017 · Thus providing a 50% saving on both disk and memory over 32-bit RGBA. The game code (typically assembly) poked specialized memory on an instruction-schedule (e. I am currently using Eclipse and the AVD emulator. is it possible to make a 1 bit texture in openGL? if so, how can i do that? whats the difference between GL_ALPHA and GL_ALPHA8? Jan 2, 2018 · I'm interested in rendering a grayscale output from a shader, to save into a texture for later use. There might be a vendor specific extension though. This tutorial will continue on from the last by extending the Nov 26, 2012 · Mode-based graphics from 8-bit consoles and arcade boxes were driven by the hardware, not the software. How do I instruct OpenGL to interpet the texture data in this way? I can only work out how to get one byte per pixel. 3sg, 08hwe9, ny, nhfkz4qw, qq, crz, gc18, g4g, wnobrlb, sfmq,