Search found 3 matches

by corvusdeux
Fri Dec 14, 2018 7:27 am
Forum: Dreamcast Homebrew Software Discussion
Topic: I present you a new multiplatform 3D library: LMP3D
Replies: 16
Views: 3795

Re: I present you a new multiplatform 3D library: LMP3D

NOTE: Sorry, I had to correct my previous post, with the rush I did not do the calculations well. Thanks for your quicker response and complete @Kannagi: "SH or MIPS are general processors, the advantage of MIPS is that we could add a coprocessor." So on PS1, the coprocessor is the GTE and on PS2 t...
by corvusdeux
Tue Dec 11, 2018 4:07 pm
Forum: Dreamcast Homebrew Software Discussion
Topic: I present you a new multiplatform 3D library: LMP3D
Replies: 16
Views: 3795

Re: I present you a new multiplatform 3D library: LMP3D

Thank you, Thank to you, 1) So, yes, the PS1 has an instruction about it, it serves for the "Backface culling" It's true, just discover it a little before you see your answer. The GTE costs this instruction 6 8 cycles. According to my calculations in SS would be 15 cycles. I suppose that in DC, bot...
by corvusdeux
Sun Dec 09, 2018 6:30 am
Forum: Dreamcast Homebrew Software Discussion
Topic: I present you a new multiplatform 3D library: LMP3D
Replies: 16
Views: 3795

Re: I present you a new multiplatform 3D library: LMP3D

Hello @Kannagi, First of all congratulate you for your project and great work. It is immense and at the same time super interesting and useful. I did not want to bother you very much, I just have some questions to ask you first about this: "On Dreamcast, there is no cross product in hardware, I made...