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fix(renderer): merge IBL into group(3) to stay within max_bind_groups limit of 4

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wgpu's default max_bind_groups is 4 (groups 0-3), but the PBR shader was
using group(4) for BRDF LUT bindings. This merges IBL bindings into the
shadow bind group (group 3) at binding slots 3-4, removes the standalone
IBL bind group layout/creation, and updates all examples accordingly.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
tolelom
2026-03-24 21:38:45 +09:00
parent 9202bfadef
commit 080ac92fbb
8 changed files with 39 additions and 76 deletions
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3
crates/voltex_renderer/src/pbr_pipeline.rs
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@@ -8,7 +8,6 @@ pub fn create_pbr_pipeline(
texture_layout: &wgpu::BindGroupLayout,
material_layout: &wgpu::BindGroupLayout,
shadow_layout: &wgpu::BindGroupLayout,
ibl_layout: &wgpu::BindGroupLayout,
) -> wgpu::RenderPipeline {
let shader = device.create_shader_module(wgpu::ShaderModuleDescriptor {
label: Some("PBR Shader"),
@@ -17,7 +16,7 @@ pub fn create_pbr_pipeline(
let layout = device.create_pipeline_layout(&wgpu::PipelineLayoutDescriptor {
label: Some("PBR Pipeline Layout"),
bind_group_layouts: &[camera_light_layout, texture_layout, material_layout, shadow_layout, ibl_layout],
bind_group_layouts: &[camera_light_layout, texture_layout, material_layout, shadow_layout],
immediate_size: 0,
});