diff options
author | Jeroen Bakker <jbakker> | 2022-01-17 16:32:03 +0300 |
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committer | Jeroen Bakker <jeroen@blender.org> | 2022-01-17 16:32:28 +0300 |
commit | 8fb2ff458ba579dba08bfdf57d043ad158b5db07 (patch) | |
tree | e6324c08c69de3e8ed34c1f85d0b2982fa1d38ed /source/blender/gpu/shaders/gpu_shader_gpencil_stroke_frag.glsl | |
parent | 08822801acf648d23791fa308ec8c1c26f86963e (diff) |
GPUShaderCreateInfo for interface abstraction
This is a first part of the Shader Create Info system could be.
A shader create info provides a way to define shader structure, resources
and interfaces. This makes for a quick way to provide backend agnostic
binding informations while also making shader variations easy to declare.
- Clear source input (only one file). Cleans up the GPU api since we can create a
shader from one descriptor
- Resources and interfaces are generated by the backend (much simpler than parsing).
- Bindings are explicit from position in the array.
- GPUShaderInterface becomes a trivial translation of enums and string copy.
- No external dependency to third party lib.
- Cleaner code, less fragmentation of resources in several libs.
- Easy to modify / extend at runtime.
- no parser involve, very easy to code.
- Does not hold any data, can be static and kept on disc.
- Could hold precompiled bytecode for static shaders.
This also includes a new global dependency system.
GLSL shaders can include other sources by using #pragma BLENDER_REQUIRE(...).
This patch already migrated several builtin shaders. Other shaders should be migrated
one at a time, and could be done inside master.
There is a new compile directive `WITH_GPU_SHADER_BUILDER` this is an optional
directive for linting shaders to increase turn around time.
What is remaining:
- pyGPU API {T94975}
- Migration of other shaders. This could be a community effort.
Reviewed By: jbakker
Maniphest Tasks: T94975
Differential Revision: https://developer.blender.org/D13360
Diffstat (limited to 'source/blender/gpu/shaders/gpu_shader_gpencil_stroke_frag.glsl')
-rw-r--r-- | source/blender/gpu/shaders/gpu_shader_gpencil_stroke_frag.glsl | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/source/blender/gpu/shaders/gpu_shader_gpencil_stroke_frag.glsl b/source/blender/gpu/shaders/gpu_shader_gpencil_stroke_frag.glsl index fc3f47c0aaa..37541bb91f3 100644 --- a/source/blender/gpu/shaders/gpu_shader_gpencil_stroke_frag.glsl +++ b/source/blender/gpu/shaders/gpu_shader_gpencil_stroke_frag.glsl @@ -1,16 +1,18 @@ +#ifndef USE_GPU_SHADER_CREATE_INFO in vec4 mColor; in vec2 mTexCoord; out vec4 fragColor; +#endif void main() { const vec2 center = vec2(0, 0.5); - vec4 tColor = vec4(mColor); + vec4 tColor = vec4(geometry_out.mColor); /* if alpha < 0, then encap */ - if (mColor.a < 0) { + if (geometry_out.mColor.a < 0) { tColor.a = tColor.a * -1.0; - float dist = length(mTexCoord - center); + float dist = length(geometry_out.mTexCoord - center); if (dist > 0.25) { discard; } |