imageStoreFast provides a variant of imageStore which does
not perform any bounds checking, reducing shader divergence,
register pressure and increasing performance through fewer
instructions.
However, this should only be used for cases where the writing
coordinate is guaranteed to fall within the texture.
Authored by Apple: Michael Parkin-White
Pull Request: https://projects.blender.org/blender/blender/pulls/111750
When GLSL sources were first included in Blender they were treated as
data (like blend files) and had no license header.
Since then GLSL has been used for more sophisticated features
(EEVEE & real-time compositing)
where it makes sense to include licensing information.
Add SPDX copyright headers to *.glsl files, matching headers used for
C/C++, also include GLSL files in the license checking script.
As leading C-comments are now stripped,
added binary size of comments is no longer a concern.
Ref !111247
Adds support for Storage buffers, including changes to the resource
binding model to ensure explicit resource bind locations are supported
for all resource types.
Storage buffer support also includes required changes for shader
source generation and SSBO wrapper support for other resource
types such as GPUVertBuf, GPUIndexBuf and GPUUniformBuf.
Authored by Apple: Michael Parkin-White
Pull Request: https://projects.blender.org/blender/blender/pulls/107175
Shader source requires explicit conversions and shader address
space qualifers in certain places in order to compile for Metal.
We also require constructors for a number of default struct types.
Authored by Apple: Michael Parkin-White
Pull Request: https://projects.blender.org/blender/blender/pulls/106219
A number of paths resulted in compilation errors after porting EEVEE to use Create-Info. Namely the fallback path for cubemap support. A number of other strict compilation failures regarding format comparison also required fixing when this mode is enabled.
Authored by Apple: Michael Parkin-White
Ref T96261
Reviewed By: fclem
Maniphest Tasks: T96261, T103313
Differential Revision: https://developer.blender.org/D16819
Explicit constructor for mat3 from a mat4 is not valid and cannot be overloaded.
Adding explicit texture resource type flags for depth textures. This is an explicit requirement for Metal Shading language. This is a temporary compatibility, as this path is already supported in GPU_SHADER_CREATE_INFO under ImageType::DEPTH_2D, though required in shader source for MSL shaders which do not have create info.
Authored by Apple: Michael Parkin-White
Ref T96261
Reviewed By: fclem
Maniphest Tasks: T96261
Differential Revision: https://developer.blender.org/D14418
Metal shading language follows the C++ 14 standard and in some cases requires a greater level of explicitness than GLSL. There are also some small language differences:
- Explicit type-casts (C++ requirements)
- Explicit constant values (C++ requirements, e.g. floating point values using 0.0 instead of 0).
- Metal/OpenGL compatibility paths
- GLSL Function prototypes
- Explicit accessors for vector types when sampling textures.
Authored by Apple: Michael Parkin-White
Ref T96261
Reviewed By: fclem
Maniphest Tasks: T96261
Differential Revision: https://developer.blender.org/D14378
