Enhancement Shader API #286
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WalkthroughThe recent changes to the shader files primarily focus on enhancing the handling of indirect lighting through light probes. Several outdated functions related to specular calculations have been removed from Changes
Sequence Diagram(s)sequenceDiagram
participant User
participant Shader
participant LightProbe
User->>Shader: Request rendering
Shader->>LightProbe: Query light probe radiance
LightProbe->>Shader: Return radiance data
Shader->>User: Render output with lighting
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Review details
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Review profile: CHILL
Files selected for processing (3)
- packages/shaderlab/src/shaders/shadingPBR/LightIndirectPBR.glsl (2 hunks)
- packages/shaderlab/src/shaders/shadingPBR/LightProbe.glsl (1 hunks)
- packages/shaderlab/src/shaders/shadingPBR/index.ts (2 hunks)
Additional comments not posted (13)
packages/shaderlab/src/shaders/shadingPBR/index.ts (2)
3-3: LGTM! Import statement aligns with the modular approach.The import of
LightProbefrom./LightProbe.glslis appropriate and aligns with the modular approach to enhance maintainability.
21-21: LGTM! Export array entry correctly includes LightProbe.The addition of
{ source: LightProbe, includeKey: "LightProbe.glsl" }in the export array ensures that theLightProbemodule is included in the shader pipeline.packages/shaderlab/src/shaders/shadingPBR/LightProbe.glsl (5)
1-21: LGTM! Preprocessor directives and envBRDFApprox function are correct.The preprocessor directives ensure that the shader code is included only once. The
envBRDFApproxfunction correctly approximates the environment BRDF for GGX on mobile.
24-32: LGTM! getReflectedVector function is correct.The
getReflectedVectorfunction correctly handles anisotropy and returns the reflected vector.
34-36: LGTM! getSpecularMIPLevel function is correct.The
getSpecularMIPLevelfunction correctly calculates the MIP level for specular reflection.
38-69: LGTM! getLightProbeRadiance function is correct.The
getLightProbeRadiancefunction correctly retrieves radiance from light probes, handling various conditions such as specular environment, texture LOD, and color space.
71-71: LGTM! #endif directive is correct.The
#endifdirective correctly ends the preprocessor conditional started with#ifndef LIGHT_PROBE.packages/shaderlab/src/shaders/shadingPBR/LightIndirectPBR.glsl (6)
18-18: LGTM! Include directive is correct.The
#include "LightProbe.glsl"directive is necessary to incorporate the functionalities defined inLightProbe.glsl.
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22-35:
LGTM! getLightProbeIrradiance function is correct.The
getLightProbeIrradiancefunction correctly calculates irradiance using spherical harmonics, ensuring proper lighting effects.
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38-50:
LGTM! evaluateDiffuseIBL function is correct.The
evaluateDiffuseIBLfunction correctly evaluates diffuse image-based lighting (IBL), handling different conditions such as spherical harmonics and color space.
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52-62:
LGTM! evaluateClearCoatIBL function is correct.The
evaluateClearCoatIBLfunction correctly evaluates clear coat image-based lighting (IBL), ensuring proper lighting effects for materials with clear coat.
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64-72:
LGTM! evaluateSpecularIBL function is correct.The
evaluateSpecularIBLfunction correctly evaluates specular image-based lighting (IBL), ensuring proper lighting effects for materials with specular reflection.
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74-88:
LGTM! evaluateIBL function is correct.The
evaluateIBLfunction correctly evaluates image-based lighting (IBL) by combining diffuse, clear coat, and specular components, ensuring comprehensive lighting effects.
Please check if the PR fulfills these requirements
What kind of change does this PR introduce? (Bug fix, feature, docs update, ...)
What is the current behavior? (You can also link to an open issue here)
What is the new behavior (if this is a feature change)?
Does this PR introduce a breaking change? (What changes might users need to make in their application due to this PR?)
Other information:
Summary by CodeRabbit
New Features
Bug Fixes
Documentation