Search found 14 matches
- November 16th, 2019, 10:24 pm
- Forum: Everything
- Topic: Help with projection matrix (again :) )
- Replies: 3
- Views: 1917
Help with projection matrix (again :) )
Ok, it seems I am still missing some fundamental part of full understanding of the projection matrix. For starters, I have watched Chili's 3D fundamentals video on the subject, and have also read many good book's take on it. It is the pre-perspective divide parts that are giving me trouble, so this ...
- November 15th, 2019, 5:08 am
- Forum: Everything
- Topic: Projection matrix and NDC
- Replies: 4
- Views: 2177
Re: Projection matrix and NDC
Ok, I should clarify. I'm not talking about the Z divide. Just the conversion to NDC, which is pre-perspective divide. In an orthographic projection, you do the same thing.
- November 14th, 2019, 6:29 am
- Forum: Everything
- Topic: Projection matrix and NDC
- Replies: 4
- Views: 2177
Projection matrix and NDC
Simple questions as I wrestle with the perspective projection matrix. First, I am assuming that the "width" of the frustum in the equation is a subset of whatever coordinate "units" I choose to use. To clarify, let's say my world is --1000 to 1000 in the x axis, and that I've decided that my camera ...
- September 21st, 2019, 6:44 pm
- Forum: Everything
- Topic: Best way to write pixels with software renderer
- Replies: 2
- Views: 1903
Best way to write pixels with software renderer
I am writing a software based rendering engine (for fun/education) Clearly bottom line speed isn't my goal, but I would like it to be as fast as a can be without gpu/directx help. Using C++ and Windows 10, VS 2017. Win 32 API. Back in the old days, I would have access to a frame buffer, and would ha...