53 Commits

Author SHA1 Message Date
62f47f8f0b example/clipping: face_vtn 2024-02-02 08:36:51 +08:00
f400fe6412 example: suzanne_profile: incomplete
This has turned in to an experiment related to texture sampling behavior on the
Dreamcast.
2024-02-02 08:18:18 +08:00
0381d356bb example: add clipping_textured 2024-01-27 12:20:15 +08:00
b4239dcfe8 geometry/circle: add texture coordinates
Blender also generated a different triangulation.
2024-01-27 10:58:39 +08:00
4842ab0e4f example: add clipping2
Unlike the previous clipping example, this clipping example preserves
surface normals.
2024-01-27 10:20:46 +08:00
e54d762a20 example/viewing_system: add "viewer" concept 2024-01-11 15:34:55 +08:00
6836790205 add viewing_system
This is inspirted by the book "3D Computer Graphics" by Alan Watt.
2024-01-06 18:43:57 +08:00
c9b57abf81 example: add clipping 2024-01-06 11:32:41 +08:00
1f6a29f379 example: update several examples 2024-01-03 23:32:37 +08:00
dcb9f36120 sh7091_bits.ods: partial
Notably missing is:

- BSC (PDTRA / PCTRA)

This also updates a handful of files to use the new sh7091_bits.hpp.
2024-01-01 23:43:06 +08:00
0b6c650ebd common.mk: add headless csv build rule 2024-01-01 00:58:10 +08:00
e8aea009c6 example: add heart
I originally planned to make this a render-to-texture demo, but this
is fairly interesting by itself.
2023-12-31 20:19:41 +08:00
b6457bf687 modifier_volume_with_two_volumes: add simple controller input
The plane can be moved around with the analog stick and analog
triggers of the controller connected to port 1.
2023-12-30 23:08:13 +08:00
8e534e9e25 example: modifier_volume_with_two_volumes: textured 2023-12-30 22:22:50 +08:00
549254615e example: modifier_volume_with_two_volumes 2023-12-30 21:50:54 +08:00
de76c0bed2 ta_parameter_format: generate TA parameter formats from csv
This replaces all handwritten TA parameter format structures with
automatically generated structures.

All valid TA parameter formats are now declared.
2023-12-30 18:55:09 +08:00
7f9469c9a7 regs/gen/ta_parameter_format: incomplete 2023-12-30 17:38:15 +08:00
5db6272ceb example: add modifier volume
This creates a modifier volume with a cube that intersects a plane.
2023-12-30 15:11:22 +08:00
4bb04a0362 example: add maple_analog
Also adds the incomplete modifier_volume example.

This also adds vec2 for UV coordinates, and obj_to_cpp has been
modified to parse vertex texture coordinates from obj files.
2023-12-30 10:53:39 +08:00
6a17031c6f example: add wiffle_attenuation
This example is an experiment with light attenuation.
2023-12-26 22:46:52 +08:00
1078037226 icosphere: adjust lighting 2023-12-25 22:11:53 +08:00
8c5cd36078 icosphere: increase the size of ta_parameter_buf
This might accidentally work, but the number of ta parameters far
exceeded the previous value.
2023-12-25 22:04:25 +08:00
54f09bad01 ta_fifo_polygon_converter: properly calculate ta_next_opb_offset
The main issue with the previous code:

  constexpr uint32_t tiles = (640 / 32) * (320 / 32);

Should have been:

  constexpr uint32_t tiles = (640 / 32) * (480 / 32);

The consequence of this is some OPBs were being overwritten by
TA_NEXT_OPB, causing corruption (missing triangles, incomplete
drawings) in some tiles.
2023-12-25 21:59:26 +08:00
e340c3ca02 example: add icosphere 2023-12-24 17:48:20 +08:00
befedb9d38 example: add lighted cube
This also copy-pastes all of the math headers I originally wrote in
saturn-examples.
2023-12-24 16:24:27 +08:00
3373ea4c0c font_outline_punch_through: implement punch through
This enables alpha blending for both font_outline and
font_outline_punch_through.

I have also experimented more with 16-gray vs 256-gray--I have not
decided which between monochrome, 16-gray, or 256-gray I like the
most.

Perhaps a better test might be to test hanzi.
2023-12-24 01:12:08 +08:00
dc85cad8b0 twiddle: use both src and dst value masks 2023-12-23 22:58:21 +08:00
15839ae6ca ttf_outline: rectangular textures must include all bytes
Previously, the texture was truncated, which caused spurious pixels to
appear in the last row(s) of the texture.
2023-12-23 22:24:59 +08:00
b484b5d4fe font_*: fully parameterize source/destination bit depth
After implementing this, I realized I don't like the appearance of the
monochrome font as much as the antialiased font.
2023-12-23 21:55:03 +08:00
ffbfcd9fd5 incomplete 1bpp font experiment 2023-12-23 18:30:21 +08:00
8f0afc2868 font_outline: remove all 1024/256/128 magic numbers
This fully threads both the real minimum size of the texture and the
dimensions of the texture through to the TA parameters.

This also removes spurious zero-area drawing commands (space
characters).
2023-12-22 23:54:39 +08:00
3b7e1eaef8 example: implement font_outline
This still needs to be cleaned up, particularly to properly pass the
texture size around--there are a few unnecessary '128x256' magic
numbers scattered in the code.
2023-12-22 00:03:52 +08:00
a8cceee46e twiddle: fully parameterize texture twiddling function
I think the original version is more readable, but the newer version
is better overall because it doesn't require reading from dst, and is
able to directly write to a 32-bit dst.
2023-12-21 11:18:56 +08:00
7e03eee3ed font_bitmap: use 4bpp palette 2023-12-20 22:39:47 +08:00
7330ccc8e0 font: update background_parameter and ta_polygon_converter_init calls 2023-12-18 20:46:38 +08:00
e2a6406a05 example: add macaw_cube_render_to_texture 2023-12-18 02:10:52 +08:00
88b6fa9aae memorymap: add texture_memory64 2023-12-17 23:04:19 +08:00
5c2b45b70d example: refresh
All examples work again, except macaw_multipass--this never worked
entirely, so I'm not worried about fixing it at the moment.
2023-12-17 22:45:52 +08:00
e4303dbcf1 cube: rename to macaw_cube 2023-12-17 22:20:56 +08:00
aa805468d9 holly/core: use End of TSP interrupt
Core bug #20 is real:

  The "End_Of_Video" interrupt is sometimes not output.

  Replace with "End_Of_TSP
2023-12-17 22:09:03 +08:00
59f8c1b3ff cube: a perspective cube 2023-12-17 17:04:34 +08:00
2f7f0a6bdf example: add maple vibrator example 2023-12-17 12:57:06 +08:00
dec0f7c7a4 maple: add ft8 data transfer 2023-12-17 11:06:38 +08:00
5a9790daf1 examples: add font example 2023-12-17 02:03:42 +08:00
7daff7e3ca example: add macaw_twiddle 2023-12-16 23:28:28 +08:00
39aa6b75a6 example: new maple "get_condition" demo
This is very barebones, and uses the serial interface to communicate
the status of the "a" controller button being pressed.

I'd like to make this a more interactive/graphical demo.
2023-12-15 22:08:23 +08:00
9bd79c6664 maple: remove cruft from maple_wink
This also adds a new overload for align_32byte for integers.
2023-12-15 19:06:59 +08:00
2689ad4011 example: add maple_controller
This broke maple_wink. I have not yet found why this happened.
2023-12-15 17:13:53 +08:00
c5078cb030 example: add translucency example
The macaw_multipass example does not work on real hardware.
2023-12-14 20:57:44 +08:00
95a30b5164 example: add macaw_multipass
I don't like this example very much, but it was an interesting
experiment regardless.
2023-12-14 13:07:26 +08:00