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5232552aa4598f9f28fefdd2e1f1012b1c0b5852
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15 Commits

Author SHA1 Message Date
tolelom
5232552aa4 feat(renderer): add normal mapping and procedural IBL to PBR shader 
- Add tangent input (location 3) and TBN computation in vertex shader
- Add normal map sampling (group 1, bindings 2-3) for tangent-space normal mapping
- Add BRDF LUT binding (group 4, bindings 0-1) for specular IBL
- Add procedural sky environment function for diffuse/specular IBL
- Replace flat ambient with split-sum IBL approximation
- Add pbr_texture_bind_group_layout (4 entries: albedo + normal)
- Add create_pbr_texture_bind_group helper and flat_normal_1x1 texture
- Update create_pbr_pipeline to accept ibl_layout parameter (group 4)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-03-24 21:28:32 +09:00
tolelom
ea8af38263 feat(renderer): add BRDF LUT generator and IBL resources 
Implements CPU-based BRDF LUT generation using the split-sum IBL
approximation (Hammersley sampling, GGX importance sampling, Smith
geometry with IBL k=a²/2). Wraps the 256×256 Rgba8Unorm LUT in
IblResources for GPU upload via wgpu 28.0 API.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
 2026-03-24 21:19:09 +09:00
tolelom
4d7ff5a122 feat(renderer): add tangent to MeshVertex with computation in OBJ parser and sphere generator 
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
 2026-03-24 21:18:26 +09:00
tolelom
8f962368e9 feat(renderer): integrate shadow map sampling with 3x3 PCF into PBR shader 
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
 2026-03-24 21:03:31 +09:00
tolelom
b5a6159526 feat(renderer): add ShadowMap, shadow depth shader, and shadow pipeline 
Implements ShadowMap (2048x2048 Depth32Float texture with comparison sampler),
shadow_shader.wgsl (depth-only vertex shader), shadow_pipeline (front-face
culling, depth bias constant=2/slope=2.0), and associated uniform types.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
 2026-03-24 21:01:51 +09:00
tolelom
62f505c838 fix(renderer): align LightsUniform to match WGSL vec3 padding (1056 bytes) 
WGSL vec3<f32> requires 16-byte alignment, causing the shader to expect
1056 bytes while Rust struct was 1040. Added padding fields to match.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-03-24 20:57:10 +09:00
tolelom
b0934970b9 feat(renderer): add multi-light system with LightsUniform and updated PBR shader 
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
 2026-03-24 20:50:13 +09:00
tolelom
b09e1df878 feat(renderer): add PBR material, sphere generator, Cook-Torrance shader, and PBR pipeline 
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-03-24 20:41:02 +09:00
tolelom
71f6081dc9 feat(renderer): add BMP texture loader and GPU texture upload 
Implements parse_bmp (24/32-bit uncompressed BMP to RGBA), GpuTexture with
wgpu 28.0 write_texture API (TexelCopyTextureInfo/TexelCopyBufferLayout),
bind_group_layout, white_1x1 fallback, and 3 BMP parser unit tests.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
 2026-03-24 19:52:35 +09:00
tolelom
04ca5df062 feat(renderer): add Blinn-Phong shader, light uniforms, mesh pipeline 
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
 2026-03-24 19:50:51 +09:00
tolelom
ffd6d3786b feat(renderer): add Camera and FpsController 
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
 2026-03-24 19:49:23 +09:00
tolelom
c7d089d970 feat(renderer): implement OBJ parser with triangle/quad support 
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
 2026-03-24 19:49:23 +09:00
tolelom
78dcc30258 feat(renderer): add MeshVertex, Mesh, and depth buffer support 
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
 2026-03-24 19:47:59 +09:00
tolelom
81ba6f7e5d feat: implement Phase 1 foundation - triangle rendering 
- voltex_math: Vec3 with arithmetic ops, dot, cross, length, normalize
- voltex_platform: VoltexWindow (winit wrapper), InputState (keyboard/mouse),
  GameTimer (fixed timestep + variable render loop)
- voltex_renderer: GpuContext (wgpu init), Vertex + buffer layout,
  WGSL shader, render pipeline
- triangle example: colored triangle with ESC to exit

All 13 tests passing. Window renders RGB triangle on dark background.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-03-24 19:34:39 +09:00
tolelom
c5b71b32b7 feat: initialize cargo workspace with voltex_math, voltex_platform, voltex_renderer 
Phase 1 Task 1 - workspace scaffolding with stub crates

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-03-24 17:47:02 +09:00