feat: Implement 3D system and procedural texture manager

- Extended mini_math.h with mat4 multiplication and affine transforms.
- Implemented TextureManager for runtime procedural texture generation and GPU upload.
- Added 3D system components: Camera, Object, Scene, and Renderer3D.
- Created test_3d_render mini-demo for interactive 3D verification.
- Fixed WebGPU validation errors regarding depthSlice and unimplemented WaitAny.

1 files changed, 0 insertions, 8 deletions

diff --git a/src/gpu/gpu.cc b/src/gpu/gpu.cc
index a097efa..3cdf9aa 100644
--- a/src/gpu/gpu.cc
+++ b/src/gpu/gpu.cc
@@ -131,14 +131,6 @@ RenderPass gpu_create_render_pass(WGPUDevice device, WGPUTextureFormat format,
   color_target.blend = nullptr;
 
   // Add additive blending for particles
-  WGPUBlendState blend = {};
-  blend.color.srcFactor = WGPUBlendFactor_SrcAlpha;
-  blend.color.dstFactor = WGPUBlendFactor_One;
-  blend.color.operation = WGPUBlendOperation_Add;
-  blend.alpha.srcFactor = WGPUBlendFactor_SrcAlpha;
-  blend.alpha.dstFactor = WGPUBlendFactor_One;
-  blend.alpha.operation = WGPUBlendOperation_Add;
-  color_target.blend = &blend;
 
   WGPUFragmentState fragment_state = {};
   fragment_state.module = shader_module;