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virtualx-engine/servers/rendering/renderer_rd/shader_rd.h

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One Copyright Update to rule them all As many open source projects have started doing it, we're removing the current year from the copyright notice, so that we don't need to bump it every year. It seems like only the first year of publication is technically relevant for copyright notices, and even that seems to be something that many companies stopped listing altogether (in a version controlled codebase, the commits are a much better source of date of publication than a hardcoded copyright statement). We also now list Godot Engine contributors first as we're collectively the current maintainers of the project, and we clarify that the "exclusive" copyright of the co-founders covers the timespan before opensourcing (their further contributions are included as part of Godot Engine contributors). Also fixed "cf." Frenchism - it's meant as "refer to / see".
2023-01-05 13:25:55 +01:00
/**************************************************************************/
/* shader_rd.h */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
A lot of progress with canvas rendering, still far from working.
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#ifndef SHADER_RD_H
#define SHADER_RD_H
Reimplement Mutex with C++'s <mutex> Main: - It's now implemented thanks to `<mutex>`. No more platform-specific implementations. - `BinaryMutex` (non-recursive) is added, as an alternative for special cases. - Doesn't need allocation/deallocation anymore. It can live in the stack and be part of other classes. - Because of that, it's methods are now `const` and the inner mutex is `mutable` so it can be easily used in `const` contexts. - A no-op implementation is provided if `NO_THREADS` is defined. No more need to add `#ifdef NO_THREADS` just for this. - `MutexLock` now takes a reference. At this point the cases of null `Mutex`es are rare. If you ever need that, just don't use `MutexLock`. - Thread-safe utilities are therefore simpler now. Misc.: - `ScopedMutexLock` is dropped and replaced by `MutexLock`, because they were pretty much the same. - Every case of lock, do-something, unlock is replaced by `MutexLock` (complex cases where it's not straightfoward are kept as as explicit lock and unlock). - `ShaderRD` contained an `std::mutex`, which has been replaced by `Mutex`.
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#include "core/os/mutex.h"
Refactor GLSL shader compilation -Used a more consistent set of keywords for the shader -Remove all harcoded entry points -Re-wrote the GLSL shader parser, new system is more flexible. Allows any entry point organization. -Entry point for sky shaders is now sky(). -Entry point for particle shaders is now process().
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#include "core/string/string_builder.h"
Reorganized core/ directory, it was too fatty already -Removed FuncRef, since Callable makes it obsolete -Removed int_types.h as its obsolete in c++11+ -Changed color names code
2020-11-07 23:33:38 +01:00
#include "core/templates/hash_map.h"
Refactor GLSL shader compilation -Used a more consistent set of keywords for the shader -Remove all harcoded entry points -Re-wrote the GLSL shader parser, new system is more flexible. Allows any entry point organization. -Entry point for sky shaders is now sky(). -Entry point for particle shaders is now process().
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#include "core/templates/local_vector.h"
Replace most uses of Map by HashMap * Map is unnecessary and inefficient in almost every case. * Replaced by the new HashMap. * Renamed Map to RBMap and Set to RBSet for cases that still make sense (order matters) but use is discouraged. There were very few cases where replacing by HashMap was undesired because keeping the key order was intended. I tried to keep those (as RBMap) as much as possible, but might have missed some. Review appreciated!
2022-05-13 15:04:37 +02:00
#include "core/templates/rb_map.h"
Reorganized core/ directory, it was too fatty already -Removed FuncRef, since Callable makes it obsolete -Removed int_types.h as its obsolete in c++11+ -Changed color names code
2020-11-07 23:33:38 +01:00
#include "core/templates/rid_owner.h"
#include "core/variant/variant.h"
Added ability to visualize native shaders
2021-01-06 00:01:50 +01:00
#include "servers/rendering_server.h"
Fix compilation warnings and re-enable werror=yes on Travis Fix -Wunused-variable, -Wunused-but-set-variable and -Wswitch warnings raised by GCC 8 and 9. Fix -Wunused-function, -Wunused-private-field and -Wtautological-constant-out-of-range-compare raised by Clang. Fix MSVC 2019 warning C4804 (unsafe use of type 'bool' in comparison operation). GCC -Wcpp warnings/Clang -W#warnings (`#warning`) are no longer raising errors and will thus not abort compilation with `werror=yes`. Treat glslang headers are system headers to avoid raising warnings. Re-enables us to build with `werror=yes` on Linux and macOS, thus catching warnings that would be introduced by new code. Fixes #36132.
2020-02-18 14:57:11 +01:00
A lot of progress with canvas rendering, still far from working.
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class ShaderRD {
Add Shader compile groups to RD Shader system 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
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public:
struct VariantDefine {
int group = 0;
CharString text;
bool default_enabled = true;
VariantDefine(){};
VariantDefine(int p_group, const String &p_text, bool p_default_enabled) {
group = p_group;
default_enabled = p_default_enabled;
text = p_text.utf8();
}
};
private:
A lot of progress with canvas rendering, still far from working.
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//versions
Modified light rendering to make it more compatible. Modified polygon management to make it more compatible with MoltenVK
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CharString general_defines;
Add Shader compile groups to RD Shader system 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
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Vector<VariantDefine> variant_defines;
Add support for low-end 3D rendering. -Reduce number of uniform sets from 6 to 4. -Remove features in low end mode, in order to reduce the number of texture units fit to 16.
2020-12-07 22:27:38 +01:00
Vector<bool> variants_enabled;
Add Shader compile groups to RD Shader system 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
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HashMap<int, LocalVector<int>> group_to_variant_map;
Vector<bool> group_enabled;
A lot of progress with canvas rendering, still far from working.
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struct Version {
CharString uniforms;
CharString vertex_globals;
Untested support for compute shaders
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CharString compute_globals;
A lot of progress with canvas rendering, still far from working.
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CharString fragment_globals;
Replace most uses of Map by HashMap * Map is unnecessary and inefficient in almost every case. * Replaced by the new HashMap. * Renamed Map to RBMap and Set to RBSet for cases that still make sense (order matters) but use is discouraged. There were very few cases where replacing by HashMap was undesired because keeping the key order was intended. I tried to keep those (as RBMap) as much as possible, but might have missed some. Review appreciated!
2022-05-13 15:04:37 +02:00
HashMap<StringName, CharString> code_sections;
A lot of progress with canvas rendering, still far from working.
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Vector<CharString> custom_defines;
Implement Binary Shader Compilation * Added an extra stage before compiling shader, which is generating a binary blob. * On Vulkan, this allows caching the SPIRV reflection information, which is expensive to parse. * On other (future) RenderingDevices, it allows caching converted binary data, such as DXIL or MSL. This PR makes the shader cache include the reflection information, hence editor startup times are significantly improved. I tested this well and it appears to work, and I added a lot of consistency checks, but because it includes writing and reading binary information, rare bugs may pop up, so be aware. There was not much of a choice for storing the reflection information, given shaders can be a lot, take a lot of space and take time to parse.
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Vector<uint8_t> *variant_data = nullptr;
Add Shader compile groups to RD Shader system 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
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RID *variants = nullptr; // Same size as variant defines.
A lot of progress with canvas rendering, still far from working.
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bool valid;
bool dirty;
bool initialize_needed;
};
Reimplement Mutex with C++'s <mutex> Main: - It's now implemented thanks to `<mutex>`. No more platform-specific implementations. - `BinaryMutex` (non-recursive) is added, as an alternative for special cases. - Doesn't need allocation/deallocation anymore. It can live in the stack and be part of other classes. - Because of that, it's methods are now `const` and the inner mutex is `mutable` so it can be easily used in `const` contexts. - A no-op implementation is provided if `NO_THREADS` is defined. No more need to add `#ifdef NO_THREADS` just for this. - `MutexLock` now takes a reference. At this point the cases of null `Mutex`es are rare. If you ever need that, just don't use `MutexLock`. - Thread-safe utilities are therefore simpler now. Misc.: - `ScopedMutexLock` is dropped and replaced by `MutexLock`, because they were pretty much the same. - Every case of lock, do-something, unlock is replaced by `MutexLock` (complex cases where it's not straightfoward are kept as as explicit lock and unlock). - `ShaderRD` contained an `std::mutex`, which has been replaced by `Mutex`.
2020-02-26 11:28:13 +01:00
Mutex variant_set_mutex;
Added a spinlock template as well as a thread work pool class. Also, optimized shader compilation to happen on threads.
2019-07-29 17:59:18 +02:00
Add Shader compile groups to RD Shader system 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
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struct CompileData {
Version *version;
int group = 0;
};
void _compile_variant(uint32_t p_variant, const CompileData *p_data);
Added a spinlock template as well as a thread work pool class. Also, optimized shader compilation to happen on threads.
2019-07-29 17:59:18 +02:00
Add Shader compile groups to RD Shader system 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
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void _initialize_version(Version *p_version);
A lot of progress with canvas rendering, still far from working.
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void _clear_version(Version *p_version);
Add Shader compile groups to RD Shader system 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
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void _compile_version(Version *p_version, int p_group);
void _allocate_placeholders(Version *p_version, int p_group);
A lot of progress with canvas rendering, still far from working.
2019-06-16 04:45:24 +02:00
RID_Owner<Version> version_owner;
Refactor GLSL shader compilation -Used a more consistent set of keywords for the shader -Remove all harcoded entry points -Re-wrote the GLSL shader parser, new system is more flexible. Allows any entry point organization. -Entry point for sky shaders is now sky(). -Entry point for particle shaders is now process().
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struct StageTemplate {
struct Chunk {
enum Type {
TYPE_VERSION_DEFINES,
TYPE_MATERIAL_UNIFORMS,
TYPE_VERTEX_GLOBALS,
TYPE_FRAGMENT_GLOBALS,
TYPE_COMPUTE_GLOBALS,
TYPE_CODE,
TYPE_TEXT
};
Type type;
StringName code;
CharString text;
};
LocalVector<Chunk> chunks;
};
A lot of progress with canvas rendering, still far from working.
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Untested support for compute shaders
2019-09-25 21:44:44 +02:00
bool is_compute = false;
Implement shader caching * Shader compilation is now cached. Subsequent loads take less than a millisecond. * Improved game, editor and project manager startup time. * Editor uses .godot/shader_cache to store shaders. * Game uses user://shader_cache * Project manager uses $config_dir/shader_cache * Options to tweak shader caching in project settings. * Editor path configuration moved from EditorSettings to new class, EditorPaths, so it can be available early on (before shaders are compiled). * Reworked ShaderCompilerRD to ensure deterministic shader code creation (else shader may change and cache will be invalidated). * Added shader compression with SMOLV: https://github.com/aras-p/smol-v
2021-05-25 02:25:11 +02:00
String name;
A lot of progress with canvas rendering, still far from working.
2019-06-16 04:45:24 +02:00
Rewrote how barriers work for faster rendering -Added more finegrained control in RenderingDevice API -Optimized barriers (use less ones for thee same) -General optimizations -Shadows render all together unbarriered -GI can render together with shadows. -SDFGI can render together with depth-preoass. -General fixes -Added GPU detection
2021-02-02 20:51:36 +01:00
CharString base_compute_defines;
Implement shader caching * Shader compilation is now cached. Subsequent loads take less than a millisecond. * Improved game, editor and project manager startup time. * Editor uses .godot/shader_cache to store shaders. * Game uses user://shader_cache * Project manager uses $config_dir/shader_cache * Options to tweak shader caching in project settings. * Editor path configuration moved from EditorSettings to new class, EditorPaths, so it can be available early on (before shaders are compiled). * Reworked ShaderCompilerRD to ensure deterministic shader code creation (else shader may change and cache will be invalidated). * Added shader compression with SMOLV: https://github.com/aras-p/smol-v
2021-05-25 02:25:11 +02:00
String base_sha256;
Add Shader compile groups to RD Shader system 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
2023-07-18 11:21:27 +02:00
LocalVector<String> group_sha256;
Implement shader caching * Shader compilation is now cached. Subsequent loads take less than a millisecond. * Improved game, editor and project manager startup time. * Editor uses .godot/shader_cache to store shaders. * Game uses user://shader_cache * Project manager uses $config_dir/shader_cache * Options to tweak shader caching in project settings. * Editor path configuration moved from EditorSettings to new class, EditorPaths, so it can be available early on (before shaders are compiled). * Reworked ShaderCompilerRD to ensure deterministic shader code creation (else shader may change and cache will be invalidated). * Added shader compression with SMOLV: https://github.com/aras-p/smol-v
2021-05-25 02:25:11 +02:00
static String shader_cache_dir;
static bool shader_cache_cleanup_on_start;
static bool shader_cache_save_compressed;
static bool shader_cache_save_compressed_zstd;
static bool shader_cache_save_debug;
bool shader_cache_dir_valid = false;
Refactor GLSL shader compilation -Used a more consistent set of keywords for the shader -Remove all harcoded entry points -Re-wrote the GLSL shader parser, new system is more flexible. Allows any entry point organization. -Entry point for sky shaders is now sky(). -Entry point for particle shaders is now process().
2021-04-13 22:01:43 +02:00
enum StageType {
STAGE_TYPE_VERTEX,
STAGE_TYPE_FRAGMENT,
STAGE_TYPE_COMPUTE,
STAGE_TYPE_MAX,
};
StageTemplate stage_templates[STAGE_TYPE_MAX];
void _build_variant_code(StringBuilder &p_builder, uint32_t p_variant, const Version *p_version, const StageTemplate &p_template);
void _add_stage(const char *p_code, StageType p_stage_type);
Implement shader caching * Shader compilation is now cached. Subsequent loads take less than a millisecond. * Improved game, editor and project manager startup time. * Editor uses .godot/shader_cache to store shaders. * Game uses user://shader_cache * Project manager uses $config_dir/shader_cache * Options to tweak shader caching in project settings. * Editor path configuration moved from EditorSettings to new class, EditorPaths, so it can be available early on (before shaders are compiled). * Reworked ShaderCompilerRD to ensure deterministic shader code creation (else shader may change and cache will be invalidated). * Added shader compression with SMOLV: https://github.com/aras-p/smol-v
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String _version_get_sha1(Version *p_version) const;
Add Shader compile groups to RD Shader system 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
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bool _load_from_cache(Version *p_version, int p_group);
void _save_to_cache(Version *p_version, int p_group);
void _initialize_cache();
Implement shader caching * Shader compilation is now cached. Subsequent loads take less than a millisecond. * Improved game, editor and project manager startup time. * Editor uses .godot/shader_cache to store shaders. * Game uses user://shader_cache * Project manager uses $config_dir/shader_cache * Options to tweak shader caching in project settings. * Editor path configuration moved from EditorSettings to new class, EditorPaths, so it can be available early on (before shaders are compiled). * Reworked ShaderCompilerRD to ensure deterministic shader code creation (else shader may change and cache will be invalidated). * Added shader compression with SMOLV: https://github.com/aras-p/smol-v
2021-05-25 02:25:11 +02:00
A lot of progress with canvas rendering, still far from working.
2019-06-16 04:45:24 +02:00
protected:
Rewrote how barriers work for faster rendering -Added more finegrained control in RenderingDevice API -Optimized barriers (use less ones for thee same) -General optimizations -Shadows render all together unbarriered -GI can render together with shadows. -SDFGI can render together with depth-preoass. -General fixes -Added GPU detection
2021-02-02 20:51:36 +01:00
ShaderRD();
Untested support for compute shaders
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void setup(const char *p_vertex_code, const char *p_fragment_code, const char *p_compute_code, const char *p_name);
A lot of progress with canvas rendering, still far from working.
2019-06-16 04:45:24 +02:00
public:
RID version_create();
Replace most uses of Map by HashMap * Map is unnecessary and inefficient in almost every case. * Replaced by the new HashMap. * Renamed Map to RBMap and Set to RBSet for cases that still make sense (order matters) but use is discouraged. There were very few cases where replacing by HashMap was undesired because keeping the key order was intended. I tried to keep those (as RBMap) as much as possible, but might have missed some. Review appreciated!
2022-05-13 15:04:37 +02:00
void version_set_code(RID p_version, const HashMap<String, String> &p_code, const String &p_uniforms, const String &p_vertex_globals, const String &p_fragment_globals, const Vector<String> &p_custom_defines);
void version_set_compute_code(RID p_version, const HashMap<String, String> &p_code, const String &p_uniforms, const String &p_compute_globals, const Vector<String> &p_custom_defines);
A lot of progress with canvas rendering, still far from working.
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_FORCE_INLINE_ RID version_get_shader(RID p_version, int p_variant) {
ERR_FAIL_INDEX_V(p_variant, variant_defines.size(), RID());
Add support for low-end 3D rendering. -Reduce number of uniform sets from 6 to 4. -Remove features in low end mode, in order to reduce the number of texture units fit to 16.
2020-12-07 22:27:38 +01:00
ERR_FAIL_COND_V(!variants_enabled[p_variant], RID());
A lot of progress with canvas rendering, still far from working.
2019-06-16 04:45:24 +02:00
Rename RID's `getornull()` to `get_or_null()`
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Version *version = version_owner.get_or_null(p_version);
Makes a clear error message if shader compilation failed
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ERR_FAIL_COND_V(!version, RID());
A lot of progress with canvas rendering, still far from working.
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if (version->dirty) {
Add Shader compile groups to RD Shader system 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
2023-07-18 11:21:27 +02:00
_initialize_version(version);
for (int i = 0; i < group_enabled.size(); i++) {
if (!group_enabled[i]) {
_allocate_placeholders(version, i);
continue;
}
_compile_version(version, i);
}
A lot of progress with canvas rendering, still far from working.
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}
if (!version->valid) {
return RID();
}
return version->variants[p_variant];
}
Custom material support seems complete.
2019-07-27 15:23:24 +02:00
bool version_is_valid(RID p_version);
A lot of progress with canvas rendering, still far from working.
2019-06-16 04:45:24 +02:00
bool version_free(RID p_version);
Add Shader compile groups to RD Shader system 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
2023-07-18 11:21:27 +02:00
// Enable/disable variants for things that you know won't be used at engine initialization time .
Add support for low-end 3D rendering. -Reduce number of uniform sets from 6 to 4. -Remove features in low end mode, in order to reduce the number of texture units fit to 16.
2020-12-07 22:27:38 +01:00
void set_variant_enabled(int p_variant, bool p_enabled);
bool is_variant_enabled(int p_variant) const;
Add Shader compile groups to RD Shader system 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
2023-07-18 11:21:27 +02:00
// Enable/disable groups for things that might be enabled at run time.
void enable_group(int p_group);
bool is_group_enabled(int p_group) const;
Implement shader caching * Shader compilation is now cached. Subsequent loads take less than a millisecond. * Improved game, editor and project manager startup time. * Editor uses .godot/shader_cache to store shaders. * Game uses user://shader_cache * Project manager uses $config_dir/shader_cache * Options to tweak shader caching in project settings. * Editor path configuration moved from EditorSettings to new class, EditorPaths, so it can be available early on (before shaders are compiled). * Reworked ShaderCompilerRD to ensure deterministic shader code creation (else shader may change and cache will be invalidated). * Added shader compression with SMOLV: https://github.com/aras-p/smol-v
2021-05-25 02:25:11 +02:00
static void set_shader_cache_dir(const String &p_dir);
static void set_shader_cache_save_compressed(bool p_enable);
static void set_shader_cache_save_compressed_zstd(bool p_enable);
static void set_shader_cache_save_debug(bool p_enable);
Added ability to visualize native shaders
2021-01-06 00:01:50 +01:00
RS::ShaderNativeSourceCode version_get_native_source_code(RID p_version);
Modified light rendering to make it more compatible. Modified polygon management to make it more compatible with MoltenVK
2019-07-10 22:44:55 +02:00
void initialize(const Vector<String> &p_variant_defines, const String &p_general_defines = "");
Add Shader compile groups to RD Shader system 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
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void initialize(const Vector<VariantDefine> &p_variant_defines, const String &p_general_defines = "");
A lot of progress with canvas rendering, still far from working.
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virtual ~ShaderRD();
};
Style: Remove inconsistently used `@author` docstrings Each file in Godot has had multiple contributors who co-authored it over the years, and the information of who was the original person to create that file is not very relevant, especially when used so inconsistently. `git blame` is a much better way to know who initially authored or later modified a given chunk of code, and most IDEs now have good integration to show this information.
2022-01-04 20:26:22 +01:00
#endif // SHADER_RD_H
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