Topics

1

Jo Engine Wish List / Skewing Sprites

« on: August 13, 2018, 04:33:40 am »

Hello!
I'm making real transparent shadows by not using perspective distortion,and using affine transformation to avoid overdraw, and it works successfully so far! A great advantage would be the ability to skew the points to let it look even more believable.
Thanks! 

2

General discussion about the Sega Saturn / Transparent Shading on The Saturn

« on: August 13, 2018, 02:48:59 am »

I've made a demonstration of circular transparent shading by not using perspective distortion, and instead, use affine transformation and it looks fine: Now, would the shadow be corrupted by having overdraw if I skewed it, in other words, kept the coordinates parallel with each other?

3

General discussion about the Sega Saturn / Idea of UV mapping on the Saturn

« on: August 07, 2018, 06:07:19 pm »

(This message was moved from another thread)
Ever since XL2 told the people on this form about changing the end addresses, I thought of this uv mapping system that uses interrupts.
I've made this diagram that gives a loose idea of a concept of primitive uv mapping. I’m not certain if this is possible, but it's an idea: .

4

General Jo Engine Help / Making a 'corrected texture' for a triangle.

« on: August 03, 2018, 03:24:30 am »

I've been looking at Sonic Z-Treme, and I've seen many triangular faces that are displaying the entire texture. Ever since, I've been thinking about making a texture become 'corrected', so to speak. I started out with messing around with the distort tool in Flash 8. But later, I thought that I could do this using UV mapping in Blender. however, I've hit a snag. I think UV distortion uses affine transformation, and if I use coordinates that aren't mathematically similar to the face, it won't give the intended result. Is there a solution to this?

5

Free talk / Would a module player (.it, .xm, .mod etc.) be possible?

« on: July 18, 2018, 11:15:28 pm »

Is it a possibility? I'm sure a 32 channel sound processor is plenty to make this work well, and worth while.

6

Free talk / Would a Flash player be possible?

« on: July 15, 2018, 12:05:10 am »

Because of the monstrous 2d capabilities of the Saturn, it wouldn’t seem to be that much of a ludicrous idea to make a Flash player. Right? Would it be theoretically possible? I think the only downside is that the sound ram is only 512 KB.

7

General Jo Engine Help / compile.sh hangs while cleanup happens

« on: July 14, 2018, 05:05:47 am »

I'm using Ubuntu 16.04. It appears that whenever I run compile.sh, it hangs on to what seems to be a cleanup routine. I've even let it sit for half an hour, and nothing happened.

Code: [Select]

user@user-thinkpad-t410:~/jo engine/joengine-master/Samples/demo - sonic$ sh ./compile.sh
rm -f main.o sonic.o ../../jo_engine/tga.o ../../jo_engine/audio.o ../../jo_engine/fs.o ../../jo_engine/font.o ../../jo_engine/input.o ../../jo_engine/physics.o ../../jo_engine/core.o ../../jo_engine/math.o ../../jo_engine/malloc.o ../../jo_engine/tools.o ../../jo_engine/sprites.o ../../jo_engine/map.o ../../jo_engine/list.o ../../jo_engine/sprite_animator.o ../../jo_engine/image.o ../../jo_engine/background.o ../../jo_engine/time.o ../../jo_engine/vdp1_command_pipeline.o sl_coff.coff sl_coff.bin sl_coff.iso sl_coff.map cd/0.bin
[2]+  Stopped                 sh ./compile.sh

I hope this problem is easily resolvable. Thanks!