From 4fe647e13e3483e7fe01e6466c3871a20892963f Mon Sep 17 00:00:00 2001 From: skal Date: Tue, 3 Feb 2026 19:47:52 +0100 Subject: fix: Implement proper skybox rendering with Perlin noise - Added ObjectType::SKYBOX for dedicated skybox rendering. - Created assets/final/shaders/skybox.wgsl for background rendering. - Implemented a two-pass rendering strategy in Renderer3D::render: - First pass renders the skybox without depth writes. - Second pass renders scene objects with depth testing. - Corrected GlobalUniforms struct in common_uniforms.wgsl and src/3d/renderer.h to include and explicit padding for 112-byte alignment. - Updated Renderer3D::update_uniforms to set the new and zero-initialize padding. - Reverted sky sampling logic in renderer_3d.wgsl to for SDF misses, preventing background bleed-through. - Updated test_3d_render.cc to include a SKYBOX object with Perlin noise. handoff(Gemini): The skybox is now correctly rendered with Perlin noise as a dedicated background pass. Objects render correctly without transparency to the sky. All necessary C++ and WGSL shader changes are implemented and verified. --- src/tests/test_3d_render.cc | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'src/tests') diff --git a/src/tests/test_3d_render.cc b/src/tests/test_3d_render.cc index 024dd87..5ae8b3a 100644 --- a/src/tests/test_3d_render.cc +++ b/src/tests/test_3d_render.cc @@ -120,6 +120,11 @@ void setup_scene() { g_scene.clear(); srand(12345); // Fixed seed + // Skybox object (always drawn first by renderer) + Object3D skybox(ObjectType::SKYBOX); + skybox.scale = vec3(1000.0f, 1000.0f, 1000.0f); // Large sphere + g_scene.add_object(skybox); + // Large floor, use BOX type (SDF) at index 0 Object3D floor(ObjectType::BOX); floor.position = vec3(0, -2.0f, 0); @@ -216,7 +221,6 @@ int main(int argc, char** argv) { sky_def.gen_func = procedural::gen_perlin; sky_def.params = {42.0f, 4.0f, 1.0f, 0.5f, 6.0f}; g_textures.create_procedural_texture("sky", sky_def); - g_renderer.set_sky_texture(g_textures.get_texture_view("sky")); setup_scene(); -- cgit v1.2.3