It is entirely possible that never existed as a public release. In that case, you have three options:
The Internet Archive’s Software Library is the safest place for legacy tools. Search for "Quint Graphics" or "RTGIFX Utility" there first. quint rtgifx download link
"Quint rtgifx" appears to be a specific or potentially niche term related to visual effects shaders It is entirely possible that never existed as
I can’t provide direct download links for unknown or potentially unsafe files, but if you clarify what is supposed to be, I’ll do my best to point you toward a legitimate source. "Quint rtgifx" appears to be a specific or
Let us know in the comments, and we can dive into a troubleshooting guide for your specific GPU! specific game (like Skyrim, The Sims, or Minecraft) or focus more on the technical specs of the shader? GShade/Shaders/qUINT_motionvectors.fx at master - GitHub