Commit Graph

16 Commits

Author SHA1 Message Date
Hajime Hoshi
63e3c4adea Revert "internal/graphics: remove FilterScreen and use an original Kage program instead"
This reverts these commits

* 3259ef3daf
* 7c55065490
* 5bb70f485e

Reason: iOS crash. Probably we have to prepare a special rendering
pipeline for the final screen.

Closes #2278
2022-08-30 01:56:06 +09:00
Hajime Hoshi
5bb70f485e internal/graphics: remove FilterScreen and use an original Kage program instead
Updates #2046
2022-08-26 17:41:29 +09:00
Hajime Hoshi
d4d4b9c070 internal/graphicsdriver/metal, internal/graphicsdriver/opengl: more efficient modulo 2022-03-04 03:47:55 +09:00
divVerent
f2209a0b51
internal/atlas: optimization: send premultiplied alpha from vertex to fragment shader. (#1996)
Note that this applies only to the builtin shaders - interface for Kage stays
unchanged for compatibility.

Minor compatibility delta: when interpolating alpha values, previous code has
created nonsense values, such as, when interpolating from
fully-transparent-black (0,0,0,0) to opaque-white (1,1,1,1), something like
half-transparent-grey (0.25,0.25,0.25,0.5) where half-transparent-white
(0.5,0.5,0.5,0.5) is used by the new code.

I assume this is a strict improvement, however this may warrant some testing.

Possible later improvement could be moving the premultiplication from fragment
shader to CPU. Did not do this as it makes the code rather inconsistent of Kage
vs built-in shader usage.

Updates #1772
2022-02-24 02:27:50 +09:00
Hajime Hoshi
df60c4c92d internal/driver: rename to internal/graphicsdriver 2022-02-06 20:41:32 +09:00
Hajime Hoshi
bf515bb594 Update version to v2.0.0-alpha 2020-10-04 04:30:40 +09:00
Hajime Hoshi
29d53edf1d graphicsdriver/opengl: Bug fix: Rename the attribute variables along with custom shaders 2020-07-20 04:06:35 +09:00
Hajime Hoshi
4021c24534 shader: Separate uniform variables and texture variabls
Textures cannot be treated as a regular variable, then they should
be treated differently from other uniform variables.

Add a new function texture0At replacing texture2D.

Updates #1239
2020-07-08 01:12:07 +09:00
Hajime Hoshi
b83f0acc4d Remove source-region information from vertices
Fixes #1210
2020-07-02 23:38:39 +09:00
Hajime Hoshi
71c9e7ac40 driver: Add Region and sourceRegion parameter at Draw
This is a preparation to remove source-region information from
vertices.

Updates #1210
2020-07-02 03:26:05 +09:00
Hajime Hoshi
d3613e13af graphicsdriver/opengl: Fix comments 2020-06-25 01:06:30 +09:00
Hajime Hoshi
2a63512c6e driver: Add AddressUnsafe
This skips the source-region check and reduces 'if' branches from
shader programs.

AddressUnsafe is internal only so far. We might expose this value
later.

Updates #1210
2020-06-25 01:00:38 +09:00
Hajime Hoshi
bfc2fffba6 graphicsdriver/opengl: Move comments 2020-06-24 23:52:39 +09:00
Hajime Hoshi
20b5be0886 graphicsdriver: Bug fix: Tie-breaking when picking a texel
When a texel is picked on texel-borders of a texture, the behavior
(tie-breaking) depends on GPU and unexpected. This change fixes this
issue by shifting 1/512 [texel] when picking a texel up.

Updates #1212
2020-06-24 20:51:16 +09:00
Hajime Hoshi
1785b6a670 examples/moire: Add a smaller scale, and remove AdjustTexel function from shaders
This can reproduce the bug reported at #669.

Apparently, the fix (8827520d4a) is
no longer required after 3550abef7a.
That's pretty odd, but examples/moire proves this fact.

Updates #669
Updates #759
2020-06-15 00:29:34 +09:00
Hajime Hoshi
1a0d92267b driver: Add shader API and implement it on OpenGL
Updates #482
2020-05-23 22:09:12 +09:00