Commit graph

42 commits

Author SHA1 Message Date
Rémi Verschelde
b5e1e05ef2
Style: clang-format: Disable KeepEmptyLinesAtTheStartOfBlocks 2021-05-04 14:45:16 +02:00
lawnjelly
40a267cf25 Batching - store parent items in default batches
In rare cases default batches could occur which were containing commands that were not owned by the first item referenced by the joined item. This had assumed to be the case, and would read the wrong command, or crash.

Instead for safety in this PR we now store a pointer to the parent item in default batches, and use this to determine the correct command list instead of assuming.
2021-04-12 16:55:59 +01:00
Rémi Verschelde
49646383f1
Update copyright statements to 2021
Happy new year to the wonderful Godot community!

2020 has been a tough year for most of us personally, but a good year for
Godot development nonetheless with a huge amount of work done towards Godot
4.0 and great improvements backported to the long-lived 3.2 branch.

We've had close to 400 contributors to engine code this year, authoring near
7,000 commit! (And that's only for the `master` branch and for the engine code,
there's a lot more when counting docs, demos and other first-party repos.)

Here's to a great year 2021 for all Godot users 🎆

(cherry picked from commit b5334d14f7)
2021-01-13 16:17:06 +01:00
lawnjelly
e88b4f330e Poly colors fixes
This adds support for custom shaders for polys, and properly handles modulate in the case of large FVF and modulate FVF.

It also fixes poly vertex colors not being sent to OpenGL.
2020-11-13 13:23:28 +00:00
lawnjelly
c2290dbedd Unified GLES2 / GLES3 Batching
Batching is mostly separated into a common template which can be used with multiple backends (GLES2 and GLES3 here). Only necessary specifics are in the backend files.

Batching is extended to cover more primitives.
2020-10-16 10:34:47 +01:00
Rémi Verschelde
422c279fcb
Merge pull request #41323 from lawnjelly/kessel_lightangles
GLES2 2D fix normal mapping - batching and nvidia workaround
2020-09-28 18:45:43 +02:00
Rémi Verschelde
c8859f0463
Fix typos with codespell
Using codespell 1.17.1.

Method:
```
$ cat > ../godot-word-whitelist.txt << EOF
ang
curvelinear
dof
doubleclick
fave
findn
leapyear
lod
merchantibility
nd
numer
ois
ony
que
seeked
synching
te
uint
unselect
webp
EOF

$ codespell -w -q 3 -I ../godot-word-whitelist.txt --skip="./thirdparty,*.po"
$ git diff // undo unwanted changes
```
2020-09-18 14:09:51 +02:00
lawnjelly
ecd39094ed GLES2 2D fix normal mapping - batching and nvidia workaround
Normal mapping previously took no account of rotation or flips in any path except the TEXTURE_RECT (uniform draw) method. This passed flips to the shader in uniforms.

In order to pass flips and rotations to the shader in batching and nvidia workaround, a per vertex attribute is required rather than a uniform. This introduces LIGHT_ANGLE which encodes both the rotation of a quad (vertex) and the horizontal and vertical flip.

In order to optionally store light angles in batching, we switch to using a 'unit' sized array which can be reused for different FVF types, as there is no need for a separate array for each FVF, as it is a waste of memory.
2020-08-18 17:49:24 +01:00
lawnjelly
2961d905bb GLES2 batching - Fix redundant transform synchronization in batches
In rare circumstances an item would issue multiple transform commands before a (non rect) draw command. The command syncronization would incorrectly start from first transform, instead of the current transform in these circumstances, which could have the result of missing drawing some commands from the end of the batch.

This had been shown in the wild occuring in debug collision polys. It was a benign error (sometimes visual elements would be lost), but did not cause any serious problems.

This PR fixes this synchronization error.
2020-08-18 08:37:07 +01:00
lawnjelly
e126b941be Removes some superfluous FORCE_INLINES
Compiler is usually in the best position to decide whether to inline functions. Great care must be taken using FORCE_INLINE because it can have unforeseen consequences with recursion, loops and bloat to the executable.

Here some FORCE_INLINES are removed in order to allow the compiler to make best choice and remove a compilation warning where unable to inline during a recursive function.

Fixes #41226
2020-08-13 17:58:47 +01:00
lawnjelly
275183ef15 GLES2 batching - Add UV precision adjustment for tilemaps
Scaling tilemaps can cause border artifacts around the edges of tiles. This has been traced to precision issues in the GPU. This PR adds an adjustment to allow a minor contraction of the UVs of rects in order to compensate for the incorrect classification of texels across the UV border.
2020-06-07 16:29:40 +01:00
Author Lawnjelly
94ed206bfc GLES2 Batching - Prevent baking colors with COLOR writes
Writing to COLOR in a custom shader can result in incorrect results if colors are baked (vertex color and modulate). This PR prevents baking with COLOR output, except under the special circumstances that final modulate is (1, 1, 1, 1), in which case the result will be correct. This should still allow color baking in many scenarios with custom shaders.
2020-05-12 14:04:53 +01:00
lawnjelly
57c70d8e9c GLES2 Batching - Prevent VERTEX baking within items in custom shaders
In addition to prevent item joins when VERTEX reads are present in a custom shader, it is also necessary to prevent baking extra matrices (extra transforms) WITHIN items, because these can also report incorrect results.
2020-05-11 17:18:57 +01:00
lawnjelly
b08ad9ef64 GLES2 batching - prevent color baking with MODULATE or COLOR
Adding the ability to access MODULATE in the shader breaks when final_modulate is baked into vertex colors (this is a technique used to batch together different colored items). This PR prevents baking vertex colors when MODULATE is detected in the shader.

It also prevents baking when COLOR is read in canvas shaders, which could currently produce the wrong result in the shader if colors were baked. It does not prevent baking if COLOR is only written, which happens in most shaders, and will operate correctly without baking.
2020-05-04 11:19:55 +01:00
lawnjelly
451c3fc0fb GLES2 2D batching - item reordering, light joining and light modulate fix
Although 2D draws in painters order with strict ordering, in certain circumstances items can be reordered to increase batching / decrease state changes, without affecting the end result. This can be determined by an overlap test.

In situation with item:
A-B-A
providing the third item does not overlap the second, they can be reordered:
A-A-B

Items already contain an AABB which can be used for this overlap test.

1)
To utilise this, I have implemented item reordering (only for single rects for now), with the lookahead adjustable in project settings. This can increase performance in situations where items may not be grouped in the scene tree by texture. It can also be switched off (by setting lookahead to 0).

2)
This same trick can be used to help join items that are lit. Lit items previously would prevent joining completely, thus missing out on performance gains other than multi-command items such as tilemaps.

In this PR, lights are assigned as bits in a bitfield (up to 64, the optimization is disabled above this), and on each try_item (for joining), the bitfield for lights and shadows is constructed and compared with the previous items. If these match the 2 items can potentially be joined. However, this can only be done without changing the rendered result if an overlap test is successful.

This overlap test can be adjusted to join items up to a specific number of item references, selectable in project settings, or turned off.

3)
The legacy uniform single rect drawing routine seems to have been identified as the source of flicker, particularly on nvidia. However, it can also be up to 2x as fast. Because of the speed the batching contains a fallback where it can use the legacy single rect method, but I have now added a project setting to make this switchable. In most cases with batching it should not be necessary (as single rects are drawn less frequently) and thus the flickering can be totally avoided.

4)
This PR also fixes a color modulate bug when drawing light passes, in certain situations (particularly custom _draw routines with multiple rects).

5)
This PR also fixes #38291, a bug in the legacy renderer where light passes could draw rects in wrong position.
2020-05-01 07:47:33 +01:00
lawnjelly
b954a8c099 Fix batching z_indices with z ranged lights
Joining items across z_indices can interfere with light culling for lights which only affect certain z ranges. This PR disables joining across z_indices when lights are present, except specifically for lights with both z_min set to the global minimum (-4096) and z_max set to the global maximum (4096).

In addition, the z_index is now stored on the joined_item for accurate light culling. The z_index is also displayed in frame diagnostics.
2020-04-23 11:58:06 +01:00
lawnjelly
54cd6d3077 Fix batch translate to colored synchronization error
In rare circumstances default batches were being joined incorrectly, causing visual regressions. This logic has been fixed.

In addition slightly more output information has been added to frame diagnosis mode.
2020-04-22 18:52:42 +01:00
lawnjelly
a9ae0fac86 Fixes incorrectly joining batch items from earlier z_index layers
Batching across z_index layers was not preserving the batch_break flag, which determines whether to not join the previous item. This is fixed by storing the flag in RenderItemState and preserving it across canvas_render_items calls.
2020-04-19 19:32:14 +01:00
lawnjelly
72adefa5cf Add frame diagnostics for GLES2 Batch renderer
Added project setting to enable / disable print frame diagnostics every 10 seconds. This prints out a list of batches and info, which is useful to optimize games and identify performance problems.
2020-04-17 08:54:33 +01:00
lawnjelly
a4cd274ca7 Batching with Extra Matrix commands
Defers sending 'transform' commands within a RasterizerCanvas::Item until they are needed for default batches. Instead locally caches the extra matrix and applies it using software transform, preventing unnecessary batch breaks.

The logic is relatively complex, and the whole 'extra matrix' of the legacy renderer in addition to the final_transform is not ideal. However this is required to accelerate some user drawing techniques, and later the lines in the IDE.
2020-04-15 12:48:36 +01:00
lawnjelly
93af8e7d1b Batching across z_indices
Extra functions canvas_render_items_begin and canvas_render_items_end are added to RasterizerCanvas, with noop stubs for non-GLES2 renderers. This enables batching to be spready over multiple z_indices, and multiple calls to canvas_render_items.

It does this by only performing item joining within canvas_render_items, and deferring rendering until canvas_render_items_end().
2020-04-12 13:52:25 +01:00
lawnjelly
1fb6181ba6 Revert to default Rect drawing code for single rects
Determined that a large reason for the decrease in performance in unbatchable scenes was due to the new routine being analogous to the 'nvidia workaround' code, that is about half the speed. So this simply uses the old routine in the case of single unbatchable rects. Hopefully we will be able to remove the old path at a later stage.
2020-04-11 17:40:30 +01:00
lawnjelly
e7bec77ef3 Bake final_modulate uniform into vertex colors
Where the final_modulate color varies between render_items this can prevent batching. This PR solves this by baking final_modulate into the vertex colors, and setting the uniform 'final_modulate' to white, and allowing the joining of items that have different final_modulate values. The previous batching system can then cope with vertex color changes as normal.
2020-04-06 12:49:47 +01:00
lawnjelly
45b0b8bff8 GLES2 2d Batch rendering (across items)
2d rendering is currently bottlenecked by drawing primitives one at a time, limiting OpenGL efficiency. This PR batches primitives and renders in fewer drawcalls, resulting in significant performance improvements. This also speeds up text rendering.

This PR batches across canvas items as well as within items.

The code dynamically chooses between a vertex format with and without color, depending on the input data for a frame, in order to optimize throughput and maximize batch size. It also adds an option to use glScissor to reduce fillrate in light passes.
2020-04-04 17:13:58 +01:00
Rémi Verschelde
a7f49ac9a1 Update copyright statements to 2020
Happy new year to the wonderful Godot community!

We're starting a new decade with a well-established, non-profit, free
and open source game engine, and tons of further improvements in the
pipeline from hundreds of contributors.

Godot will keep getting better, and we're looking forward to all the
games that the community will keep developing and releasing with it.
2020-01-01 11:16:22 +01:00
PouleyKetchoupp
e6ebc43d72 Fixed antialiased option for Polygon2D / Line2D
Polygon2D:
The property wasn't used anymore after switching from canvas_item_add_polygon() to canvas_item_add_triangle_array() for drawing.

Line2D:
Added the same property as for Polygon2D & fixed smooth line drawing to use indices correctly.

Fixes #26823
2019-11-28 22:57:27 +01:00
clayjohn
1253a33423 Improve glBufferSubData usage where safe 2019-11-11 16:38:41 -08:00
Aaron Franke
1a06496f45
Some Vector2i usage cleanup
Replace casting Vector2 -> Vector2i -> Vector2 with a simple call to .floor(), and some minor fixes.
2019-08-03 01:11:05 -07:00
Juan Linietsky
5784caae73 Make alpha 1.0 when using texscreen, fixes #25850 2019-02-21 19:43:34 -03:00
Juan Linietsky
9430e68cf3 Support SCREEN_TEXTURE in GLES2, fixes #25405 2019-02-12 18:49:57 -03:00
Rémi Verschelde
02ffc59270 GLES2: Make Nvidia flicker workaround opt-in
It has a big impact on 2D and text rendering performance (cf. #24466)
so the solution seems worse than the bug it aims to work around.

It's now opt-in via "rendering/quality/2d/gles2_use_nvidia_rect_flicker_workaround"
for those who need it and have a simple enough game for the performance
drop not to be an issue.

Fixes #24466.
2019-01-14 19:02:07 +01:00
Juan Linietsky
b3dc02b5df Was not properly re-setting light uniforms, fixes #24976 2019-01-14 12:04:26 -03:00
Rémi Verschelde
b16c309f82 Update copyright statements to 2019
Happy new year to the wonderful Godot community!
2019-01-01 12:58:10 +01:00
Rémi Verschelde
d1f3b622f0 Fix missing/malformed license headers 2019-01-01 12:46:36 +01:00
Juan Linietsky
a366d45856 -Implented 2D Mesh support for GLES2
-Implemented 2D Skeleton deform for GLES2
-Implement Multimesh support for GLES2, closes #20524, closes #21839
2018-12-27 20:41:04 -03:00
Juan Linietsky
3bdd1ff387 Support lights and shadows in GLES2, fixes #21853 2018-12-20 10:10:30 -03:00
Bastiaan Olij
a6df366b23 Moving lens distortion shader into drivers and adding GLES2 support 2018-10-02 17:14:43 +10:00
Marcin Zawiejski
bd5ff205b2 Revert "Batch GLES2 draw calls"
This reverts commit f55039b194.

The GLES2 batching seems to require more testing and tweaking in order
to actually make the performance better on Android devices. It's been
proved with #21184 that the current implementation has it's drawbacks
therefore I suggest reverting the commit for now.
2018-08-20 02:10:14 +02:00
Marcin Zawiejski
f55039b194 Batch GLES2 draw calls
Adds GLES2 draw calls batching for the same render list item that uses
multiple rasterizer commands (e.g. Label node; a node with multiple
GDScript draw_* calls).
2018-08-14 10:47:16 +02:00
karroffel
b64171e79c add initial GLES2 3D renderer 2018-07-27 14:15:46 +02:00
Poommetee Ketson
ff070de986 s/2017/2018/g for gles2, websocket, linux appdata 2018-03-21 16:07:51 +07:00
karroffel
eac4c984df add GLES 2 renderer for 2D
This commit adds a new rendering backend, GLES2, and adds a
project setting to enable it.

Currently this backend can only be used on the X11 platform,
but integrating into other platforms is planned.
2018-03-01 15:12:30 +01:00