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afb95c9fb1d9894a31aaf2e29cbc7fb41449063b
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25 Commits

Author SHA1 Message Date
tolelom
afb95c9fb1 feat(renderer): add forward transparency pass with alpha blending 
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-03-26 14:52:17 +09:00
tolelom
14fe532432 feat(editor): integrate 3D viewport into editor_demo 
Render actual 3D geometry (cubes + ground plane) in the Viewport panel
using the existing mesh_shader.wgsl Blinn-Phong pipeline with orbit
camera controls (left-drag to orbit, middle-drag to pan, scroll to zoom).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-03-26 10:40:41 +09:00
tolelom
1081fb472f feat(renderer): improve IBL with Hosek-Wilkie sky, SH irradiance, GPU BRDF LUT 
- Hosek-Wilkie inspired procedural sky (Rayleigh/Mie scattering, sun disk)
- L2 Spherical Harmonics irradiance (9 coefficients, CPU computation)
- SH evaluation in shader replaces sample_environment for diffuse IBL
- GPU compute BRDF LUT (Rg16Float, higher precision than CPU Rgba8Unorm)
- SkyParams (sun_direction, turbidity) in ShadowUniform

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-03-25 20:58:28 +09:00
tolelom
1b0e12e824 feat(renderer): add CSM, point/spot shadows, and frustum light culling 
- CascadedShadowMap: 2-cascade directional shadows with frustum-based splits
- PointShadowMap: cube depth texture with 6-face rendering
- SpotShadowMap: perspective shadow map from spot light cone
- Frustum light culling: Gribb-Hartmann plane extraction + sphere tests
- Mat4::inverse() for frustum corner computation

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-03-25 20:55:43 +09:00
tolelom
6bc77cb777 feat(renderer): add ORM and emissive texture map support to PBR pipeline 
- Extended bind group 1: albedo + normal + ORM + emissive (8 bindings)
- pbr_shader.wgsl: ORM sampling (R=AO, G=roughness, B=metallic) + emissive
- deferred_gbuffer.wgsl: ORM + emissive luminance in material_data.w
- deferred_lighting.wgsl: emissive contribution from G-Buffer
- All 5 PBR examples updated with default ORM/emissive textures
- Backward compatible: old 4-binding layout preserved

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-03-25 20:41:30 +09:00
tolelom
a9f5b11f69 feat(renderer): add glTF 2.0 / GLB parser with self-contained JSON parser 
- Mini JSON parser (no external deps) for glTF support
- GLB binary format: header, JSON chunk, BIN chunk
- Embedded base64 buffer URI support
- Accessor/BufferView extraction (position, normal, uv, tangent, indices)
- PBR material extraction (baseColor, metallic, roughness)
- Auto compute_tangents when not provided

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-03-25 20:14:04 +09:00
tolelom
2d80a218c5 feat(renderer): add Baseline JPEG decoder 
Self-contained Huffman/IDCT/MCU/YCbCr decoder.
Supports SOF0, 4:4:4/4:2:2/4:2:0 subsampling, grayscale,
restart markers. API matches parse_png pattern.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-03-25 20:06:07 +09:00
tolelom
803df19305 feat(renderer): add PNG decoder with filter reconstruction 
Parse PNG files (RGB and RGBA, 8-bit) with full filter reconstruction
(None, Sub, Up, Average, Paeth). Uses the self-contained deflate
decompressor for IDAT chunk decompression.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-03-25 18:18:12 +09:00
tolelom
4debec43e7 feat(renderer): add bloom/tonemap pipelines and convert lighting to HDR output 
- deferred_pipeline.rs: add bloom_bind_group_layout, create_bloom_downsample_pipeline (NO blend),
  create_bloom_upsample_pipeline (additive One+One blend), tonemap_bind_group_layout, create_tonemap_pipeline
- deferred_lighting.wgsl: remove Reinhard tonemap + gamma correction; output raw HDR linear colour
- lib.rs: export new pipeline functions

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
 2026-03-25 13:49:32 +09:00
tolelom
6c938999e4 feat(renderer): add HDR target, Bloom resources, and ACES tonemap 
- Add hdr.rs with HdrTarget (Rgba16Float render target) and HDR_FORMAT constant
- Add bloom.rs with BloomResources (5-level mip chain), BloomUniform, and mip_sizes()
- Add tonemap.rs with TonemapUniform and CPU-side aces_tonemap() for testing
- Export all new types from lib.rs
- 33 tests passing (26 existing + 3 bloom + 4 tonemap)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
 2026-03-25 13:47:19 +09:00
tolelom
a5c0179793 feat(renderer): add hardware RT shadows to deferred_demo 
Integrate BLAS/TLAS acceleration structures and RT shadow compute pass
into the deferred rendering demo. Adds GpuContext::new_with_features()
for requesting EXPERIMENTAL_RAY_QUERY, Mesh::new_with_usage() for
BLAS_INPUT buffer flags, and extends the lighting shadow bind group
to 9 entries (shadow map + IBL + SSGI + RT shadow).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-03-25 13:23:34 +09:00
tolelom
b556cdd768 feat(renderer): add RT shadow compute pipeline and integrate into lighting pass 
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
 2026-03-25 13:14:28 +09:00
tolelom
3d0657885b feat(renderer): add SSGI resources with hemisphere kernel and noise texture 
Adds ssgi.rs with SsgiUniform (repr C, Pod), SsgiResources (output texture,
kernel buffer, 4x4 noise texture, uniform buffer), hemisphere kernel generator
(64 samples, z>=0, center-biased), deterministic noise data (16 rotation
vectors), and 3 unit tests. Exports SsgiResources, SsgiUniform,
SSGI_OUTPUT_FORMAT from lib.rs.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
 2026-03-25 12:04:56 +09:00
tolelom
03b1419b17 feat(renderer): add GBuffer and fullscreen triangle for deferred rendering 
Introduces GBuffer struct with 4 render target TextureViews (position/
normal/albedo/material) plus depth, and a fullscreen oversized triangle
for screen-space passes. Exports format constants and create helpers.
Updates lib.rs with new module declarations and re-exports.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
 2026-03-25 11:49:27 +09:00
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
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
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
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