SPDX license update

examples/RTVolume/aabbs.comp.glsl

@@ -1,3 +1,6 @@
+//SPDX-License-Identifier: MIT
+//SPDX-FileCopyrightText: Copyright (C) 2026 Catcrafts®
+
 #version 460
 #extension GL_EXT_buffer_reference : enable
 #extension GL_EXT_scalar_block_layout : enable

examples/RTVolume/aabbs.comp.wgsl

@@ -1,3 +1,6 @@
+//SPDX-License-Identifier: MIT
+//SPDX-FileCopyrightText: Copyright (C) 2026 Catcrafts®
+
 // Issue #37: GPU producer (WebGPU) for the procedural AABB build input.
 // Writes the per-box bounding boxes straight into a device storage buffer
 // that Mesh::BuildProcedural / RefitProcedural then consume by handle, with

examples/RTVolume/anyhit.glsl

@@ -1,3 +1,6 @@
+//SPDX-License-Identifier: MIT
+//SPDX-FileCopyrightText: Copyright (C) 2026 Catcrafts®
+
 #version 460
 #extension GL_EXT_ray_tracing : enable
 

examples/RTVolume/anyhit.wgsl

@@ -1,3 +1,6 @@
+//SPDX-License-Identifier: MIT
+//SPDX-FileCopyrightText: Copyright (C) 2026 Catcrafts®
+
 // RTVolume any-hit shader (runs in TRACE on every candidate sphere hit,
 // because the geometry is registered non-opaque). Punches a spherical
 // checkerboard of holes: for half the cells it returns RT_ANYHIT_IGNORE,

examples/RTVolume/closesthit.glsl

@@ -1,3 +1,6 @@
+//SPDX-License-Identifier: MIT
+//SPDX-FileCopyrightText: Copyright (C) 2026 Catcrafts®
+
 #version 460
 #extension GL_EXT_ray_tracing : enable
 

examples/RTVolume/closesthit.wgsl

@@ -1,3 +1,6 @@
+//SPDX-License-Identifier: MIT
+//SPDX-FileCopyrightText: Copyright (C) 2026 Catcrafts®
+
 // RTVolume closest-hit (runs in SHADE). Shades the procedural sphere by
 // its surface normal with a fixed sun + ambient, tinted per instance.
 //

examples/RTVolume/intersection.glsl

@@ -1,3 +1,6 @@
+//SPDX-License-Identifier: MIT
+//SPDX-FileCopyrightText: Copyright (C) 2026 Catcrafts®
+
 #version 460
 #extension GL_EXT_ray_tracing : enable
 

examples/RTVolume/intersection.wgsl

@@ -1,3 +1,6 @@
+//SPDX-License-Identifier: MIT
+//SPDX-FileCopyrightText: Copyright (C) 2026 Catcrafts®
+
 // RTVolume intersection shader (runs in TRACE, per AABB the ray enters).
 // Analytic ray-sphere test: the unit box [-1,1]^3 is treated as the
 // bounding volume of a sphere of radius 1 centred at the box centre. The

examples/RTVolume/main.cpp

@@ -1,3 +1,6 @@
+//SPDX-License-Identifier: MIT
+//SPDX-FileCopyrightText: Copyright (C) 2026 Catcrafts®
+
 // RTVolume — procedural (AABB) ray tracing on both backends. Demonstrates
 // the two features this example was written to exercise:
 //

examples/RTVolume/miss.glsl

@@ -1,3 +1,6 @@
+//SPDX-License-Identifier: MIT
+//SPDX-FileCopyrightText: Copyright (C) 2026 Catcrafts®
+
 #version 460
 #extension GL_EXT_ray_tracing : enable
 

examples/RTVolume/miss.wgsl

@@ -1,3 +1,6 @@
+//SPDX-License-Identifier: MIT
+//SPDX-FileCopyrightText: Copyright (C) 2026 Catcrafts®
+
 // RTVolume miss (runs in SHADE). Vertical sky gradient — also what shows
 // through the any-hit cut-out cells.
 fn miss_main(ray: RayDesc, payload: ptr<function, Payload>) {

examples/RTVolume/project.cpp

@@ -1,3 +1,6 @@
+//SPDX-License-Identifier: MIT
+//SPDX-FileCopyrightText: Copyright (C) 2026 Catcrafts®
+
 import std;
 import Crafter.Build;
 namespace fs = std::filesystem;

examples/RTVolume/raygen.glsl

@@ -1,3 +1,6 @@
+//SPDX-License-Identifier: MIT
+//SPDX-FileCopyrightText: Copyright (C) 2026 Catcrafts®
+
 #version 460
 #extension GL_EXT_ray_tracing : enable
 #extension GL_EXT_shader_image_load_formatted : enable

examples/RTVolume/raygen.wgsl

@@ -1,3 +1,6 @@
+//SPDX-License-Identifier: MIT
+//SPDX-FileCopyrightText: Copyright (C) 2026 Catcrafts®
+
 // RTVolume raygen (runs in GENERATE). Host-driven pinhole camera at
 // @group(3) (groups 0..2 are reserved by the wavefront pipeline:
 // 0 = WfParams, 1 = data heaps, 2 = indirect args).

examples/RTVolume/resolve.wgsl

@@ -1,3 +1,6 @@
+//SPDX-License-Identifier: MIT
+//SPDX-FileCopyrightText: Copyright (C) 2026 Catcrafts®
+
 // RTVolume RESOLVE-stage tonemap: Reinhard + gamma 2.2 over the linear
 // accumulator.
 fn resolve_main(coord: vec2<u32>, hdr: vec4<f32>) -> vec4<f32> {