Add ray tracing test shaders

Slightly modified from https://www.khronos.org/registry/vulkan/specs/1.1-extensions/html/vkspec.html#_sample_code_2

3 files changed, 34 insertions, 0 deletions

diff --git a/shaders/vulkan/rchit/ray_tracing.vk.rchit b/shaders/vulkan/rchit/ray_tracing.vk.rchit
new file mode 100644
index 00000000..107f9751
--- /dev/null
+++ b/shaders/vulkan/rchit/ray_tracing.vk.rchit
@@ -0,0 +1,9 @@
+#version 460
+#extension GL_NV_ray_tracing : require
+
+layout(location = 0) rayPayloadInNV float payload;
+
+void main()
+{
+    payload = 1.0;
+}
diff --git a/shaders/vulkan/rgen/ray_tracing.vk.rgen b/shaders/vulkan/rgen/ray_tracing.vk.rgen
new file mode 100644
index 00000000..c3d8398b
--- /dev/null
+++ b/shaders/vulkan/rgen/ray_tracing.vk.rgen
@@ -0,0 +1,16 @@
+#version 460
+#extension GL_NV_ray_tracing : require
+
+layout(set = 0, binding = 0, rgba8) uniform image2D image;
+layout(set = 0, binding = 1) uniform accelerationStructureNV as;
+layout(location = 0) rayPayloadNV float payload;
+
+void main()
+{
+    vec4 col = vec4(0.0, 0.0, 0.0, 1.0);
+    vec3 origin = vec3(float(gl_LaunchIDNV.x) / float(gl_LaunchSizeNV.x), float(gl_LaunchIDNV.y) / float(gl_LaunchSizeNV.y), 1.0);
+    vec3 dir = vec3(0.0, 0.0, -1.0);
+    traceNV(as, 0u, 255u, 0u, 1u, 0u, origin, 0.0, dir, 1000.0, 0);
+    col.y = payload;
+    imageStore(image, ivec2(gl_LaunchIDNV.xy), col);
+}
diff --git a/shaders/vulkan/rmiss/ray_tracing.vk.rmiss b/shaders/vulkan/rmiss/ray_tracing.vk.rmiss
new file mode 100644
index 00000000..ff438ce7
--- /dev/null
+++ b/shaders/vulkan/rmiss/ray_tracing.vk.rmiss
@@ -0,0 +1,9 @@
+#version 460
+#extension GL_NV_ray_tracing : require
+
+layout(location = 0) rayPayloadInNV float payload;
+
+void main()
+{
+    payload = 0.0;
+}