The current usage.
In viewport_find_from_screen_attachment
- Allocates a list of pointers, eg sizeof(RID*) * ridcount.
We need fill that buffer
viewport_owner.fill_owned_buffer(rids);
...
p_rid_buffer[idx] = _make_from_id((validator << 32) | i);
_make_from_id returns an RID object, not a pointer.
Since there isn't a copy constructor, a bitwise copy of the object occurs.
This issue will only present itself under 32bit builds.
sizeof(RID) : 8
sizeof(RID*) : 4
whereas 64bit builds they are both 8.
This fixes a bugs where per-viewport samplers were being used for internal texture fetches (probes, sky, etc.).
This also fixes a bug when using multiple viewports in the same scene.
This also fixes a bug where the texture bias would override the bias from 3D scale.
Ensure `ensure_tangents` option actually creates tangent array. Even if it is just a dummy array.
Allow mesh to generate its own tangents when using compression. This allows users to compress meshes without tangents.
Warn users if they are trying to read from tangents without providing tangents.
This cleans up a few more cases of uint32_t->uint64_t
Importantly this fixes an edge case in the axis-angle compression by
using the pre-existing Basis methods instead
Previously, it was possible to use zero or negative values, which are
invalid.
This also prevents crashing the engine by setting a shadow size of
0 or lower from a script.
From what I could see only SSAO & SSIL were affected when they both
call:
int zero[1] = { 0 };
RD::get_singleton()->buffer_update(ssao.importance_map_load_counter, 0,
sizeof(uint32_t), &zero, 0);
int zero[1] = { 0 };
RD::get_singleton()->buffer_update(ssil.importance_map_load_counter, 0,
sizeof(uint32_t), &zero, 0);
Also documented what setup_command_buffer & draw_command_buffer are for.
Fixes issue #83152. Due to how BLUR_0 is reused for multiple purposes and requires being at native resolution for some post-processing effects to work, FSR2 will use an alternate texture at internal size to use as the screen texture read by shaders instead. The rendering pipeline will prefer using this texture if it exists.
This is a longstanding issue in both the Mobile and GL Compatibility renderer.
Meshes pair with all lights that touch them, and then at draw time, we send all paired lights indices to the shader (even if that light isn't visible). The problem is that non-visible lights aren't uploaded to the GPU and don't have an index. So we end up using a bogus index
If user try to use a global shader variable in a fog type shader we are getting shader error. The reason of this there is a typo in the fog.cpp. I other well working shaders types like sky the "action.global_buffer_array_variable" is "global_shader_uniforms.data".
The investigation tracked here:
https://discord.com/channels/212250894228652034/1158918161337434172
This allows Godot to automatically compress meshes to save a lot of bandwidth.
In general, this requires no interaction from the user and should result in
no noticable quality loss.
This scheme is not backwards compatible, so we have provided an upgrade
mechanism, and a mesh versioning mechanism.
Existing meshes can still be used as a result, but users can get a
performance boost by reimporting assets.
Fixes an error where the exposure was calculated incorrectly if a lower resolution scale was used while using FSR2. Now the behavior is consistent regardless of the resolution scale.
Introduces support for FSR2 as a new upscaler option available from the project settings. Also introduces an specific render list for surfaces that require motion and the ability to derive motion vectors from depth buffer and camera motion.
TAA + MSAA would make Godot request unnecessary flags for an MSAA
velocity texture. flags that were not even actually needed.
This was causing:
1. Unsupported GPUs to fail completely (e.g. Intel Arc 770)
2. Wrong codepaths to be followed (causing validation errors, possibly
crashes or glitches)
3. Unnecessary performance impact in all GPUs.
See
https://github.com/godotengine/godot/issues/71929#issuecomment-1722274359
This allows to include script_instance.h directly in the
generated gdvirtual.gen.inc, and remove excessive includes
from the codebase.
This should also allow Resource to use GDVIRTUAL macros,
which wasn't possible previously due to a circular dependency.
Introduces a new structure to store samplers created with certain parameters instead of storing a 'custom' set of samplers. Allows viewports to correctly configure the mipmap bias and use it when rendering the scene.
Add the capability of resizing the transforms buffer for particles to be double its size and alternate where the current output is written to. Only works for particles that use index as their draw order.
I wanted to add this tool for years and always forget. This command line option:
```
$ godot.exe -e --debug-canvas-item-redraw
```
Allows to see when a canvas item is redrawn. This helps find out if something
in the UI is refreshing in a way it should not. Examples as such:
* Signals causing more of the UI to redraw.
* Container resizing causes more UI elements to redraw.
* Something using a timer is redrawing all time time, which can go unnoticed.
To my surprise, the editor UI is redrawing very efficiently. There is some
weird stuff with the scene tabs, redrawing when the inspector changes but most
things for the most part are fine.
Extends mesh instances that required custom vertex buffers to create two alternating buffers that are written to and binds them to use them as the previous vertex buffer when generating motion vectors.
There was an error in the other branch of the refactored function where the size of the array was not properly multiplied by the size of the float to check against the buffer size. This was only an error in the error-checking itself and not the functionality. There was also an error where the proper notification was not emitted whenever the buffer for the multimesh is recreated to invalidate the previous references the renderer might've created to it. This fixes CPU Particles getting corrupted when they're created without emission being enabled.
Direct buffer copies are required to perform certain operations more efficiently, as the only current alternative is to download the buffer to the CPU and upload it again. As the first use case, the new function is used when enabling motion vectors on multimeshes.
Fixes#67287. There was a subtle error where due to how enabling motion vectors for multi-meshes was handled, only the first instance would have a valid transforms buffer and the rest would point to an invalid buffer. This change moves over the responsibility of enabling motion vectors only when changes happen to the individual 3D transforms or the entire buffer itself. It also fixes an unnecessary download of the existing buffer that'd get overwritten by the current cache if it exists. Another fix is handling the case where the buffer was not set, and enabling motion vectors would not cause the buffer to be recreated correctly.
This is needed to allow 2D to fully make use of 3D effects (e.g. glow), and can be used to substantially improve quality of 2D rendering at the cost of performance
Additionally, the 2D rendering pipeline is done in linear space (we skip linear_to_srgb conversion in 3D tonemapping) so the entire Viewport can be kept linear.
This is necessary for proper HDR screen support in the future.
The code wanted to divide and round up:
- 0 / 64 = 0
- 63 / 64 = 1
- 64 / 64 = 1
- 65 / 64 = 2
However when the dividend was exactly 0 it would underflow and produce
67108864 instead.
This caused TDRs on empty scenes or extremely slow performance
Fix#80286
See Issue #69528. When building with precision=double, the TAA pass would break due to the motion vectors being corrupted. It was apparent the origin of the camera itself was corrupted in the UBO for the previous frame because the camera origin was only being split correctly for the current block but not for the previous block (to effectively support the double precision float on the shader).
- Add compatibility methods for `RenderingDevice::shader_create_from_bytecode`
and `CodeEdit::get_text_for_symbol_loopup`.
- Silence errors which now have compatibility methods.
- Acknowledge GraphEdit/GraphNode compat breakage, intended and WIP.
The first time a shader is compiled Godot performs the following:
```cpp
for (uint32_t i = 0; i < SHADER_STAGE_MAX; i++) {
if
(spirv_data.push_constant_stages_mask.has_flag((ShaderStage)(1 << i))) {
binary_data.push_constant_vk_stages_mask |=
shader_stage_masks[i];
}
}
```
However binary_data.push_constant_vk_stages_mask is never initialized to
0 and thus contains garbage data or'ed with the good data.
This value is used by push constants (and many other things) thus it can
be a big deal.
Fortunately because the relevant flags are always guaranteed to be set
(but not guaranteed to be unset), the damage is restricted to:
1. Performance (unnecessary flushing & over-excessive barriers)
2. Overwriting push descriptors already set (this would be serious,
doesn't seem to be an issue)
3. Driver implementations going crazy when they see bits set they don't
expect (unknown if this is an issue)
This uninitialized value is later saved into the binary cache.
Valgrind is able to detect this bug on the first run, but not on the
subsequent ones because they data comes from a file.
cache_file_version has been bumped to force rebuild of all cached
shaders. Because the ones generated so far are compromised.
As more users use compute in Godot 4, the way they do is most likely incompatible when running
on separate threads and will start erroring soon as we improve the thread safety of the render thread.
To properly run code on the render thread, this function was added. Use like this:
```GDScript
func initialize_compute_code():
....
func update_compute_code(custom_data):
...
func _ready():
RenderingServer.call_on_render_thread( initialize_compute_code )
func _process():
RenderingServer.call_on_render_thread( update_compute_code.bind(with_data) )
```
discard was being included in all shaders set to depth pass opaque, which is the majority of shaders
Instead it should only be used with alpha prepass materials
This allows us to specify a subset of variants to compile at load time and conditionally other variants later.
This works seamlessly with shader caching.
Needed to ensure that users only pay the cost for variants they use
Commit 2c000cb72f changed the interpolation limits from (0.04, 1.0) to (0.04, 0.37). This is incorrect, as we want to have an F0 of 0.04 for dielectrics (materials with metalness of 0.0) and an F0 of 1.0 for metals.
The Schlick approximation uses an F0 of 0.04 for all dielectrics and it's good enough.
Having it lower than 1.0 leads to an incorrect application of the Fresnel effect for metals and leads to bugs like #79549
