feat(vulkan): add alpha test shader path

3 files changed, 8 insertions, 1 deletions

diff --git a/adapters/fparkan-render-vulkan/shaders/manifest.json b/adapters/fparkan-render-vulkan/shaders/manifest.json
index 40ec615..d187cdb 100644
--- a/adapters/fparkan-render-vulkan/shaders/manifest.json
+++ b/adapters/fparkan-render-vulkan/shaders/manifest.json
@@ -1 +1 @@
-{"schema":2,"target_env":"vulkan1.1","compiler":{"name":"glslangValidator","version":"11:16.3.0","binary_sha256":"9bcd69d830b350aaa6e2254915ff74e46070e217b67f38daad27c1fc1f22910f"},"validator":{"name":"spirv-val","version":"SPIRV-Tools v2026.2 unknown hash, 2026-04-29T17:02:58+00:00","binary_sha256":"f6d5b96ff19f073f3af0c0bcfa0c18702d288d3ec598efc242d01cd104d8354f"},"modules":[{"name":"triangle.vert","stage":"vertex","entry_point":"main","source_path":"adapters/fparkan-render-vulkan/shaders/triangle.vert","source_sha256":"82f9ee39a30b094203041205954576ca820d75771421bb27ddd300359e4e9043","spirv_path":"adapters/fparkan-render-vulkan/shaders/triangle.vert.spv","word_count":290,"sha256":"1984662f78873b70135ec444ccd86d86fa66dfca3f615d19ddaf0cda1587d4cf","descriptor_sets":0,"push_constant_bytes":0,"compile_command":"glslangValidator -V --target-env vulkan1.1 -S vert -e main adapters/fparkan-render-vulkan/shaders/triangle.vert -o adapters/fparkan-render-vulkan/shaders/triangle.vert.spv","validate_command":"spirv-val --target-env vulkan1.1 adapters/fparkan-render-vulkan/shaders/triangle.vert.spv","interface_hash":"23e1d3d9d32e7f7ec0b9ca87f8b86be8f8363c7eb5d745fc5a157cb8433eb138"},{"name":"triangle.frag","stage":"fragment","entry_point":"main","source_path":"adapters/fparkan-render-vulkan/shaders/triangle.frag","source_sha256":"70b600a0c79b6cdee1747a47caf7854bbe0bb9a693b3fe29345e659df549d96f","spirv_path":"adapters/fparkan-render-vulkan/shaders/triangle.frag.spv","word_count":197,"sha256":"49dae3e1c46d5d23cccf3b161c36ea0b3a606e89c2289dbfed3e4fe991eb8556","descriptor_sets":1,"push_constant_bytes":0,"compile_command":"glslangValidator -V --target-env vulkan1.1 -S frag -e main adapters/fparkan-render-vulkan/shaders/triangle.frag -o adapters/fparkan-render-vulkan/shaders/triangle.frag.spv","validate_command":"spirv-val --target-env vulkan1.1 adapters/fparkan-render-vulkan/shaders/triangle.frag.spv","interface_hash":"446615153811b02f05622dc3cdeae998461a6a225a3d2098bba0e0d158a21027"}],"manifest_hash":"038ecdb57832ac2d45a1ca6da5ec058b34f4f31b7170aa68fa612ac9d0ae7565"}
+{"schema":2,"target_env":"vulkan1.1","compiler":{"name":"glslangValidator","version":"11:16.3.0","binary_sha256":"9bcd69d830b350aaa6e2254915ff74e46070e217b67f38daad27c1fc1f22910f"},"validator":{"name":"spirv-val","version":"SPIRV-Tools v2026.2 unknown hash, 2026-04-29T17:02:58+00:00","binary_sha256":"f6d5b96ff19f073f3af0c0bcfa0c18702d288d3ec598efc242d01cd104d8354f"},"modules":[{"name":"triangle.vert","stage":"vertex","entry_point":"main","source_path":"adapters/fparkan-render-vulkan/shaders/triangle.vert","source_sha256":"82f9ee39a30b094203041205954576ca820d75771421bb27ddd300359e4e9043","spirv_path":"adapters/fparkan-render-vulkan/shaders/triangle.vert.spv","word_count":290,"sha256":"1984662f78873b70135ec444ccd86d86fa66dfca3f615d19ddaf0cda1587d4cf","descriptor_sets":0,"push_constant_bytes":0,"compile_command":"glslangValidator -V --target-env vulkan1.1 -S vert -e main adapters/fparkan-render-vulkan/shaders/triangle.vert -o adapters/fparkan-render-vulkan/shaders/triangle.vert.spv","validate_command":"spirv-val --target-env vulkan1.1 adapters/fparkan-render-vulkan/shaders/triangle.vert.spv","interface_hash":"23e1d3d9d32e7f7ec0b9ca87f8b86be8f8363c7eb5d745fc5a157cb8433eb138"},{"name":"triangle.frag","stage":"fragment","entry_point":"main","source_path":"adapters/fparkan-render-vulkan/shaders/triangle.frag","source_sha256":"f9162fccce56111e85fdf0f58251798393c37aa23f9f3d979ba404bf6773c27b","spirv_path":"adapters/fparkan-render-vulkan/shaders/triangle.frag.spv","word_count":296,"sha256":"536a5c9a4389f9d34ca11a25f20d0acbc53d3eb0782c18375326647319336a85","descriptor_sets":1,"push_constant_bytes":4,"compile_command":"glslangValidator -V --target-env vulkan1.1 -S frag -e main adapters/fparkan-render-vulkan/shaders/triangle.frag -o adapters/fparkan-render-vulkan/shaders/triangle.frag.spv","validate_command":"spirv-val --target-env vulkan1.1 adapters/fparkan-render-vulkan/shaders/triangle.frag.spv","interface_hash":"7692547c3195074fefc2321e1f4d4a09a3d83c65465cefd2237c8bae1df58d88"}],"manifest_hash":"5a16fb791e86bb790cd2d85151627e0d39193c5c073a9294130f149d4ff5ba58"}
diff --git a/adapters/fparkan-render-vulkan/shaders/triangle.frag b/adapters/fparkan-render-vulkan/shaders/triangle.frag
index 3200d46..22bdef0 100644
--- a/adapters/fparkan-render-vulkan/shaders/triangle.frag
+++ b/adapters/fparkan-render-vulkan/shaders/triangle.frag
@@ -6,6 +6,13 @@ layout(location = 0) out vec4 out_color;
 
 layout(set = 0, binding = 0) uniform sampler2D base_color;
 
+layout(push_constant) uniform AlphaTestConstants {
+    float alpha_cutoff;
+} alpha_test;
+
 void main() {
     out_color = texture(base_color, in_uv) * vec4(in_color, 1.0);
+    if (out_color.a < alpha_test.alpha_cutoff) {
+        discard;
+    }
 }
diff --git a/adapters/fparkan-render-vulkan/shaders/triangle.frag.spv b/adapters/fparkan-render-vulkan/shaders/triangle.frag.spv
index 3f26869..9fa123b 100644
--- a/adapters/fparkan-render-vulkan/shaders/triangle.frag.spv
+++ b/adapters/fparkan-render-vulkan/shaders/triangle.frag.spv