Search found 8 matches
- Sat Jun 13, 2015 5:31 pm
- Forum: Links, Papers, Libraries, Demos, Movies, Comparisons
- Topic: Kraft - a 3D physics engine in Object Pascal
- Replies: 2
- Views: 45186
Kraft - a 3D physics engine in Object Pascal
Hello everyone, as already indicated in another thread, I published my physics engine on GitHub now. It is licensed under the zlib license. It is implemented in Object Pascal. GitHub repo: https://github.com/BeRo1985/kraft . Compatible with: Delphi 7-XE7 (but not with the Android and iOS targets), F...
- Sat May 30, 2015 11:48 pm
- Forum: Research and development discussion about Collision Detection and Physics Simulation
- Topic: Bilateral advancement 3D GJK feature extraction problems
- Replies: 12
- Views: 32032
Re: Bilateral advancement 3D GJK feature extraction problems
By the way, your slides about Rubikon and physics generally, which I could find, were really a great help for me, to design my new physics engine with a right architecture this time, so that this physics engine now is not more faulty designed, in contrast to my last previous physics engines, which I...
- Sat May 30, 2015 7:03 pm
- Forum: Research and development discussion about Collision Detection and Physics Simulation
- Topic: Bilateral advancement 3D GJK feature extraction problems
- Replies: 12
- Views: 32032
Re: Bilateral advancement 3D GJK feature extraction problems
So it seems, ihat i have found the real issue now. It was my GJK implementation, which was faulty (probably due to over optimization), so I've rewrote my GJK code from scratch now, with which my Bilateral advancement implementation seems to be working now. And as bonus, my new GJK code seems to be e...
- Sat May 30, 2015 2:40 pm
- Forum: Research and development discussion about Collision Detection and Physics Simulation
- Topic: Bilateral advancement 3D GJK feature extraction problems
- Replies: 12
- Views: 32032
Re: Bilateral advancement 3D GJK feature extraction problems
May I ask, how do you reduce these Edge/Face and Face/Face cases to a Vertex/Face case? by picking the to-the-face-nearest Edge/OtherFace vertex as vertex? or by picking simply the first (or a random) Edge/OtherFace vertex as vertex? or by averaging the Edge/OtherFace vertices to a average Edge/Othe...
- Thu May 28, 2015 6:15 pm
- Forum: Research and development discussion about Collision Detection and Physics Simulation
- Topic: Bilateral advancement 3D GJK feature extraction problems
- Replies: 12
- Views: 32032
Re: Bilateral advancement 3D GJK feature extraction problems
No, but I thought the basic question would be clear. Primary, what is the correct way to extract the features of a 3D GJK simplex, ie Vertex-Vertex, Edge-Vertex, Face-Edge, Face-Vertex, for usage in Bilateral Advancement. I'm already storing the vertex indices (in addition to the normal 3D vectors, ...
- Thu May 28, 2015 10:06 am
- Forum: Research and development discussion about Collision Detection and Physics Simulation
- Topic: Bilateral advancement 3D GJK feature extraction problems
- Replies: 12
- Views: 32032
Bilateral advancement 3D GJK feature extraction problems
Now my second question regarding CCD, where now the first SAT question was answered here :) The second question is, what at my bilateral advancement implementation is wrong (doesn't work correctly), may especially the GJK feature extraction code part of it, where I believe, that because the problem ...
- Thu May 28, 2015 9:34 am
- Forum: Research and development discussion about Collision Detection and Physics Simulation
- Topic: 3D convex hull SAT face clipping implementation question
- Replies: 2
- Views: 7738
Re: 3D convex hull SAT face clipping implementation question
Okay, thanks, so as I have now implemented it in my physics engine, where I'm pushing now the respective clipped vertices (of shapr A or B) to reference plane of shape A, regardless of which shape (A or B) is the reference convex hull and which (A or B) is the incident convex hull, so that feature f...
- Fri May 15, 2015 3:17 am
- Forum: Research and development discussion about Collision Detection and Physics Simulation
- Topic: 3D convex hull SAT face clipping implementation question
- Replies: 2
- Views: 7738
3D convex hull SAT face clipping implementation question
Hello guys, i'm rewriting my old 3D physics engine PAPPE in the moment, which I wrote in anno 2007, because it was buggy as hell. The rewrite is almost complete now (except continuous collision detection), but I've some open questions yet, so the first question here (the other second open "whic...