Talk:SmileBASIC (Petit Computer 3)/@comment-15296152-20150714222556/@comment-15296152-20150718195349

Yeah, the closest we have is GTRI, but that's just one solid color. The kind of things I was thinking of were GTRI with not just color per point, but also texture coordinates so it would use whatever GPAGE was set with for reading from, and since each graphic page is 512x512 and the existing write buffer only uses up to 400x240 of it, they could use a lower portion of it (from <0,240>-<400,480>) as a depth buffer. I guess they could have done this, but in order for it to work fast enough, they'd also would have needed to include a ton of other functions, like for handling the camera, 4x4 matrix operations, etc.