feat: migrate ambient env from RGBM to half-float

hhhhkrx · hhhhkrx · commit 023f2f201b2b · 2026-03-10T17:51:58.000+08:00
diff --git a/e2e/case/.initPostProcessEnv.ts b/e2e/case/.initPostProcessEnv.ts
@@ -38,7 +38,7 @@ export async function initPostProcessEnv(
       engine.resourceManager
         .load<AmbientLight>({
           type: AssetType.Env,
-          url: "https://gw.alipayobjects.com/os/bmw-prod/89c54544-1184-45a1-b0f5-c0b17e5c3e68.bin"
+          url: "https://mdn.alipayobjects.com/oasis_be/afts/file/A*KabxT4d8GHcAAAAAgEAAAAgAekp5AQ/Internal/Bake/ambient.env"
         })
         .then((ambientLight) => {
           scene.ambientLight = ambientLight;
@@ -49,7 +49,6 @@ export async function initPostProcessEnv(
           sky.material = skyMaterial;
           sky.mesh = PrimitiveMesh.createCuboid(engine, 1, 1, 1);
           skyMaterial.texture = ambientLight.specularTexture;
-          skyMaterial.textureDecodeRGBM = true;
           return ambientLight;
         }),
       engine.resourceManager.load<Texture2D>({
diff --git a/e2e/case/camera-ssao.ts b/e2e/case/camera-ssao.ts
@@ -114,12 +114,11 @@ WebGLEngine.create({
   engine.resourceManager
     .load<AmbientLight>({
       type: AssetType.Env,
-      url: "https://gw.alipayobjects.com/os/bmw-prod/89c54544-1184-45a1-b0f5-c0b17e5c3e68.bin"
+      url: "https://mdn.alipayobjects.com/oasis_be/afts/file/A*KabxT4d8GHcAAAAAgEAAAAgAekp5AQ/Internal/Bake/ambient.env"
     })
     .then((ambientLight) => {
       scene.ambientLight = ambientLight;
       skyMaterial.texture = ambientLight.specularTexture;
-      skyMaterial.textureDecodeRGBM = true;
       ambientLight.diffuseIntensity = 1;
       ambientLight.specularIntensity = 1;
     })
diff --git a/e2e/case/material-pbr-clearcoat.ts b/e2e/case/material-pbr-clearcoat.ts
@@ -45,7 +45,7 @@ WebGLEngine.create({ canvas: "canvas" }).then((engine) => {
     engine.resourceManager
       .load<AmbientLight>({
         type: AssetType.Env,
-        url: "https://gw.alipayobjects.com/os/bmw-prod/89c54544-1184-45a1-b0f5-c0b17e5c3e68.bin"
+        url: "https://mdn.alipayobjects.com/oasis_be/afts/file/A*KabxT4d8GHcAAAAAgEAAAAgAekp5AQ/Internal/Bake/ambient.env"
       })
       .then((ambientLight) => {
         scene.ambientLight = ambientLight;
diff --git a/e2e/case/material-pbr-specular.ts b/e2e/case/material-pbr-specular.ts
@@ -56,7 +56,7 @@ WebGLEngine.create({ canvas: "canvas", shaderLab: new ShaderLab() }).then((engin
     engine.resourceManager
       .load<AmbientLight>({
         type: AssetType.Env,
-        url: "https://gw.alipayobjects.com/os/bmw-prod/89c54544-1184-45a1-b0f5-c0b17e5c3e68.bin"
+        url: "https://mdn.alipayobjects.com/oasis_be/afts/file/A*KabxT4d8GHcAAAAAgEAAAAgAekp5AQ/Internal/Bake/ambient.env"
       })
       .then((ambientLight) => {
         scene.ambientLight = ambientLight;
diff --git a/e2e/case/material-pbr.ts b/e2e/case/material-pbr.ts
@@ -42,7 +42,7 @@ WebGLEngine.create({ canvas: "canvas" }).then((engine) => {
     engine.resourceManager
       .load<AmbientLight>({
         type: AssetType.Env,
-        url: "https://gw.alipayobjects.com/os/bmw-prod/89c54544-1184-45a1-b0f5-c0b17e5c3e68.bin"
+        url: "https://mdn.alipayobjects.com/oasis_be/afts/file/A*KabxT4d8GHcAAAAAgEAAAAgAekp5AQ/Internal/Bake/ambient.env"
       })
       .then((ambientLight) => {
         scene.ambientLight = ambientLight;
diff --git a/e2e/case/material-shaderReplacement.ts b/e2e/case/material-shaderReplacement.ts
@@ -49,7 +49,7 @@ async function main() {
     .load([
       {
         type: AssetType.Env,
-        url: "https://gw.alipayobjects.com/os/bmw-prod/f369110c-0e33-47eb-8296-756e9c80f254.bin"
+        url: "https://mdn.alipayobjects.com/oasis_be/afts/file/A*KabxT4d8GHcAAAAAgEAAAAgAekp5AQ/Internal/Bake/ambient.env"
       },
       {
         url: "https://gw.alipayobjects.com/os/bmw-prod/150e44f6-7810-4c45-8029-3575d36aff30.gltf",
diff --git a/e2e/case/physx-collision.ts b/e2e/case/physx-collision.ts
@@ -146,7 +146,7 @@ WebGLEngine.create({ canvas: "canvas", physics: new PhysXPhysics() }).then((engi
   engine.resourceManager
     .load<AmbientLight>({
       type: AssetType.Env,
-      url: "https://gw.alipayobjects.com/os/bmw-prod/89c54544-1184-45a1-b0f5-c0b17e5c3e68.bin"
+      url: "https://mdn.alipayobjects.com/oasis_be/afts/file/A*KabxT4d8GHcAAAAAgEAAAAgAekp5AQ/Internal/Bake/ambient.env"
     })
     .then((ambientLight) => {
       scene.ambientLight = ambientLight;
diff --git a/e2e/case/physx-customUrl.ts b/e2e/case/physx-customUrl.ts
@@ -151,7 +151,7 @@ WebGLEngine.create({
   engine.resourceManager
     .load<AmbientLight>({
       type: AssetType.Env,
-      url: "https://gw.alipayobjects.com/os/bmw-prod/89c54544-1184-45a1-b0f5-c0b17e5c3e68.bin"
+      url: "https://mdn.alipayobjects.com/oasis_be/afts/file/A*KabxT4d8GHcAAAAAgEAAAAgAekp5AQ/Internal/Bake/ambient.env"
     })
     .then((ambientLight) => {
       scene.ambientLight = ambientLight;
diff --git a/e2e/case/physx-mesh-collider-data.ts b/e2e/case/physx-mesh-collider-data.ts
@@ -266,7 +266,7 @@ WebGLEngine.create({ canvas: "canvas", physics: new PhysXPhysics() }).then((engi
   engine.resourceManager
     .load<AmbientLight>({
       type: AssetType.Env,
-      url: "https://gw.alipayobjects.com/os/bmw-prod/89c54544-1184-45a1-b0f5-c0b17e5c3e68.bin"
+      url: "https://mdn.alipayobjects.com/oasis_be/afts/file/A*KabxT4d8GHcAAAAAgEAAAAgAekp5AQ/Internal/Bake/ambient.env"
     })
     .then((ambientLight) => {
       scene.ambientLight = ambientLight;
diff --git a/e2e/case/physx-mesh-collider.ts b/e2e/case/physx-mesh-collider.ts
@@ -85,7 +85,7 @@ WebGLEngine.create({ canvas: "canvas", physics }).then((engine) => {
     }),
     engine.resourceManager.load<AmbientLight>({
       type: AssetType.Env,
-      url: "https://gw.alipayobjects.com/os/bmw-prod/89c54544-1184-45a1-b0f5-c0b17e5c3e68.bin"
+      url: "https://mdn.alipayobjects.com/oasis_be/afts/file/A*KabxT4d8GHcAAAAAgEAAAAgAekp5AQ/Internal/Bake/ambient.env"
     })
   ]).then(([gltf, ambientLight]) => {
     scene.ambientLight = ambientLight;
diff --git a/e2e/case/project-loader.ts b/e2e/case/project-loader.ts
@@ -17,7 +17,7 @@ WebGLEngine.create({ canvas: "canvas", shaderLab }).then((engine) => {
   engine.resourceManager
     .load({
       type: AssetType.Project,
-      url: "https://mdn.alipayobjects.com/oasis_be/afts/file/A*HHq7Tb8zf5oAAAAAQJAAAAgAekp5AQ/project.json"
+      url: "https://mdn.alipayobjects.com/oasis_be/afts/file/A*FxCdTZFHcGMAAAAAQMAAAAgAekp5AQ/project.json"
     })
     .then(() => {
       const cameraEntity = engine.sceneManager.activeScene.findEntityByName("Camera");
diff --git a/e2e/case/shaderlab-pbr.ts b/e2e/case/shaderlab-pbr.ts
@@ -364,7 +364,7 @@ WebGLEngine.create({ canvas: "canvas", shaderLab }).then((engine) => {
     engine.resourceManager
       .load<AmbientLight>({
         type: AssetType.Env,
-        url: "https://gw.alipayobjects.com/os/bmw-prod/89c54544-1184-45a1-b0f5-c0b17e5c3e68.bin"
+        url: "https://mdn.alipayobjects.com/oasis_be/afts/file/A*KabxT4d8GHcAAAAAgEAAAAgAekp5AQ/Internal/Bake/ambient.env"
       })
       .then((ambientLight) => {
         scene.ambientLight = ambientLight;
@@ -375,7 +375,6 @@ WebGLEngine.create({ canvas: "canvas", shaderLab }).then((engine) => {
         sky.material = skyMaterial;
         sky.mesh = PrimitiveMesh.createCuboid(engine, 1, 1, 1);
         skyMaterial.texture = ambientLight.specularTexture;
-        skyMaterial.textureDecodeRGBM = true;
         return ambientLight;
       }),
     engine.resourceManager.load<Texture2D>({
diff --git a/e2e/fixtures/originImage/Advance_project-loader.jpg b/e2e/fixtures/originImage/Advance_project-loader.jpg
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:46f0382e8519b67a5ba00296c31c1cd21c22c2ad0955688fe3ea2ac0573b8df3
-size 575499
+oid sha256:0bf7d2f47ddb379bb7d232634f7ff912efcbbc644d48cd0d4ecc3c62934289b6
+size 486563
diff --git a/e2e/fixtures/originImage/Camera_camera-fxaa.jpg b/e2e/fixtures/originImage/Camera_camera-fxaa.jpg
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:e6dc1d5e3512f08c46eeea40e62f2d803b07e3c4b4941ffbe7e96addcdab4251
-size 383726
+oid sha256:36c556290c43651db02f5669df63ae2e1f57615a78721855e2e72dd64fd0366c
+size 398553
diff --git a/e2e/fixtures/originImage/Camera_camera-ssao.jpg b/e2e/fixtures/originImage/Camera_camera-ssao.jpg
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:d73cf130129d1b0c1c03a8f797ebac52c88a274683d6c2c7111dfd2803b934af
-size 340695
+oid sha256:dd4eb74670171579a1a90e6ea861e44420c27bf30bbeaee59502ee93498c060f
+size 315233
diff --git a/e2e/fixtures/originImage/Material_material-pbr-clearcoat.jpg b/e2e/fixtures/originImage/Material_material-pbr-clearcoat.jpg
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:1ba17fbd17e08c3c57143a053d85e3f1c0127cffb5cb346e67f86e99ae13e1c2
-size 297473
+oid sha256:f35e71bebd9874d58976c811c5aa5b38a76b52b69c53b1827d7feb4d75138d3f
+size 331389
diff --git a/e2e/fixtures/originImage/Material_material-pbr-specular.jpg b/e2e/fixtures/originImage/Material_material-pbr-specular.jpg
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:3707baa6f9260d349299491a94f5398b2c4c75ee436724b5bfb70c37106c1d87
-size 286856
+oid sha256:48b1c72d6502e5f30c2611f27ba1656cd98263dfc8ccdf7bd7ac6bc21b844cc7
+size 323432
diff --git a/e2e/fixtures/originImage/Material_material-pbr.jpg b/e2e/fixtures/originImage/Material_material-pbr.jpg
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:b67d0b94e1a74f7ca61c047db781701cfa76ac82b8ba381e2a36bda7a45ed1b4
-size 163679
+oid sha256:dfd5513abcb0bac799c6022f02b15591bdc55c5e71f62cea02bf75e136d93fbb
+size 180745
diff --git a/e2e/fixtures/originImage/Physics_physx-collision.jpg b/e2e/fixtures/originImage/Physics_physx-collision.jpg
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:78c59642a6353b6bf89fbd6b245654812447e821cceb9e6f94fdcaefc42b1e52
-size 39040
+oid sha256:5f22873f721a8064d0c985f9110f7a0122db62f84c970950131f4dfc7a76990b
+size 41058
diff --git a/e2e/fixtures/originImage/Physics_physx-customUrl.jpg b/e2e/fixtures/originImage/Physics_physx-customUrl.jpg
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:78c59642a6353b6bf89fbd6b245654812447e821cceb9e6f94fdcaefc42b1e52
-size 39040
+oid sha256:5f22873f721a8064d0c985f9110f7a0122db62f84c970950131f4dfc7a76990b
+size 41058
diff --git a/e2e/fixtures/originImage/Physics_physx-mesh-collider-data.jpg b/e2e/fixtures/originImage/Physics_physx-mesh-collider-data.jpg
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:3028a9ea38e358f69e599c5430fce36db14c3b0b7b33769dc1efd8e8fcc04c97
-size 130003
+oid sha256:734ff63ab58b2737dd456d056379eea674199d9b13dc3b63fcd804ad30385b3d
+size 142874
diff --git a/e2e/fixtures/originImage/Physics_physx-mesh-collider.jpg b/e2e/fixtures/originImage/Physics_physx-mesh-collider.jpg
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:78094591cd4d1fd8b4652a84473cc22c6c87b9d5f92d80b5aaf2aec149aee593
-size 314083
+oid sha256:e1f07c1ba3ce2126db607c66688164d0aafefa00e3a5dbd11e36861712d09e44
+size 346019
diff --git a/e2e/fixtures/originImage/PostProcess_postProcess-HDR-bloom-ACES.jpg b/e2e/fixtures/originImage/PostProcess_postProcess-HDR-bloom-ACES.jpg
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:ed321cb5ff8a851d5f53a756b2e660cb3d612d90a0ccf58eac445976ec05dfea
-size 407078
+oid sha256:8038747359b3e951580a46641d03d4304a7a4e8ce699774367d6e82bc077351e
+size 428227
diff --git a/e2e/fixtures/originImage/PostProcess_postProcess-HDR-bloom-neutral.jpg b/e2e/fixtures/originImage/PostProcess_postProcess-HDR-bloom-neutral.jpg
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:44ea2b918cf2078386faa5056fbf0068188eb11647eca35a55da7cd82b31fe35
-size 384248
+oid sha256:3094762c5a913536c58664671f542243e7cc1a4a19464d05a504dd4b4cf99f80
+size 452372
diff --git a/e2e/fixtures/originImage/PostProcess_postProcess-LDR-bloom-neutral.jpg b/e2e/fixtures/originImage/PostProcess_postProcess-LDR-bloom-neutral.jpg
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:01c5d6c59a5f067f3346d71b6dba13727655cedbb84019cfe314696e68703bc7
-size 398672
+oid sha256:630c053ce27f3794fd79474b00aa32357ffb4a2cf80d5362e0a84d3242992e26
+size 457139
diff --git a/e2e/fixtures/originImage/PostProcess_postProcess-customPass.jpg b/e2e/fixtures/originImage/PostProcess_postProcess-customPass.jpg
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:9532ca7a853348e3dbcf53995d397e867dbcbd4ae0adb77073f56e732eed0d4e
-size 170018
+oid sha256:6030a016b0a86852ca3180448598d903d915ebb736a6b21d211b0ccc2ed9acfb
+size 203747
diff --git a/examples/src/gltf-loader.ts b/examples/src/gltf-loader.ts
@@ -36,9 +36,9 @@ import * as dat from "dat.gui";
 Logger.enable();
 
 const envList = {
-  sunset: "https://gw.alipayobjects.com/os/bmw-prod/89c54544-1184-45a1-b0f5-c0b17e5c3e68.bin",
-  pisa: "https://gw.alipayobjects.com/os/bmw-prod/6470ea5e-094b-4a77-a05f-4945bf81e318.bin",
-  foot_2K: "https://gw.alipayobjects.com/os/bmw-prod/23c1893a-fe29-4e91-bd6a-bb1c4201a876.bin"
+  sunset: "https://mdn.alipayobjects.com/oasis_be/afts/file/A*KabxT4d8GHcAAAAAgEAAAAgAekp5AQ/Internal/Bake/ambient.env",
+  pisa: "https://mdn.alipayobjects.com/oasis_be/afts/file/A*KabxT4d8GHcAAAAAgEAAAAgAekp5AQ/Internal/Bake/ambient.env",
+  foot_2K: "https://mdn.alipayobjects.com/oasis_be/afts/file/A*KabxT4d8GHcAAAAAgEAAAAgAekp5AQ/Internal/Bake/ambient.env"
 };
 
 class Oasis {
@@ -180,7 +180,6 @@ class Oasis {
 
           this.scene.ambientLight = env;
           this.skyMaterial.texture = env.specularTexture;
-          this.skyMaterial.textureDecodeRGBM = true;
           resolve(true);
         });
     });
diff --git a/examples/src/screenshot.ts b/examples/src/screenshot.ts
@@ -46,7 +46,7 @@ WebGLEngine.create({ canvas: "canvas" }).then((engine) => {
   engine.resourceManager
     .load<AmbientLight>({
       type: AssetType.Env,
-      url: "https://gw.alipayobjects.com/os/bmw-prod/89c54544-1184-45a1-b0f5-c0b17e5c3e68.bin"
+      url: "https://mdn.alipayobjects.com/oasis_be/afts/file/A*KabxT4d8GHcAAAAAgEAAAAgAekp5AQ/Internal/Bake/ambient.env"
     })
     .then((ambientLight) => {
       scene.ambientLight = ambientLight;
diff --git a/packages/core/src/lighting/AmbientLight.ts b/packages/core/src/lighting/AmbientLight.ts
@@ -8,13 +8,13 @@ import { ShaderProperty } from "../shader/ShaderProperty";
 import { TextureCube } from "../texture";
 import { DiffuseMode } from "./enums/DiffuseMode";
 
+
 /**
  * Ambient light.
  */
 export class AmbientLight extends ReferResource {
   private static _shMacro: ShaderMacro = ShaderMacro.getByName("SCENE_USE_SH");
   private static _specularMacro: ShaderMacro = ShaderMacro.getByName("SCENE_USE_SPECULAR_ENV");
-  private static _decodeRGBMMacro: ShaderMacro = ShaderMacro.getByName("SCENE_IS_DECODE_ENV_RGBM");
 
   private static _diffuseColorProperty: ShaderProperty = ShaderProperty.getByName("scene_EnvMapLight.diffuse");
   private static _diffuseSHProperty: ShaderProperty = ShaderProperty.getByName("scene_EnvSH");
@@ -35,23 +35,6 @@ export class AmbientLight extends ReferResource {
   private _diffuseMode: DiffuseMode = DiffuseMode.SolidColor;
   private _shArray: Float32Array = new Float32Array(27);
   private _scenes: Scene[] = [];
-  private _specularTextureDecodeRGBM: boolean = false;
-
-  /**
-   * Whether to decode from specularTexture with RGBM format.
-   */
-  get specularTextureDecodeRGBM(): boolean {
-    return this._specularTextureDecodeRGBM;
-  }
-
-  set specularTextureDecodeRGBM(value: boolean) {
-    this._specularTextureDecodeRGBM = value;
-
-    const scenes = this._scenes;
-    for (let i = 0, n = scenes.length; i < n; i++) {
-      this._setSpecularTextureDecodeRGBM(scenes[i].shaderData);
-    }
-  }
 
   /**
    * Diffuse mode of ambient light.
@@ -162,7 +145,6 @@ export class AmbientLight extends ReferResource {
     shaderData.setFloatArray(AmbientLight._diffuseSHProperty, this._shArray);
 
     this._setDiffuseMode(shaderData);
-    this._setSpecularTextureDecodeRGBM(shaderData);
     this._setSpecularTexture(shaderData);
   }
 
@@ -201,14 +183,6 @@ export class AmbientLight extends ReferResource {
     }
   }
 
-  private _setSpecularTextureDecodeRGBM(sceneShaderData: ShaderData): void {
-    if (this._specularTextureDecodeRGBM) {
-      sceneShaderData.enableMacro(AmbientLight._decodeRGBMMacro);
-    } else {
-      sceneShaderData.disableMacro(AmbientLight._decodeRGBMMacro);
-    }
-  }
-
   private _preComputeSH(sh: SphericalHarmonics3, out: Float32Array): void {
     /**
      * Basis constants
diff --git a/packages/core/src/shaderlib/common.glsl b/packages/core/src/shaderlib/common.glsl
@@ -11,10 +11,6 @@ float pow2(float x ) {
     return x * x;
 }
 
-vec4 RGBMToLinear(vec4 value, float maxRange ) {
-    return vec4( value.rgb * value.a * maxRange, 1.0 );
-}
-
 vec4 gammaToLinear(vec4 value){
     return vec4( pow(value.rgb, vec3(2.2)), value.a);
 }
diff --git a/packages/core/src/shaderlib/extra/skybox.fs.glsl b/packages/core/src/shaderlib/extra/skybox.fs.glsl
@@ -8,9 +8,7 @@ uniform vec4 material_TintColor;
 void main() {
     vec4 textureColor = textureCube( material_CubeTexture, v_cubeUV );
 
-    #ifdef MATERIAL_IS_DECODE_SKY_RGBM
-        textureColor = RGBMToLinear(textureColor, 5.0);
-    #elif defined(ENGINE_NO_SRGB)
+    #ifdef ENGINE_NO_SRGB
         textureColor = sRGBToLinear(textureColor);
     #endif
 
diff --git a/packages/core/src/shaderlib/pbr/ibl_frag_define.glsl b/packages/core/src/shaderlib/pbr/ibl_frag_define.glsl
@@ -67,9 +67,7 @@ vec3 getLightProbeRadiance(Geometry geometry, vec3 normal, float roughness, int
             vec4 envMapColor = textureCube( scene_EnvSpecularSampler, reflectVec, specularMIPLevel );
         #endif
 
-        #ifdef SCENE_IS_DECODE_ENV_RGBM
-            envMapColor.rgb = RGBMToLinear(envMapColor, 5.0).rgb;
-        #elif defined(ENGINE_NO_SRGB)
+        #ifdef ENGINE_NO_SRGB
             envMapColor = sRGBToLinear(envMapColor);
         #endif
         
diff --git a/packages/core/src/sky/SkyBoxMaterial.ts b/packages/core/src/sky/SkyBoxMaterial.ts
@@ -2,7 +2,6 @@ import { Color } from "@galacean/engine-math";
 import { Engine } from "../Engine";
 import { Material } from "../material/Material";
 import { Shader } from "../shader/Shader";
-import { ShaderMacro } from "../shader/ShaderMacro";
 import { ShaderProperty } from "../shader/ShaderProperty";
 import { CompareFunction } from "../shader/enums/CompareFunction";
 import { CullMode } from "../shader/enums/CullMode";
@@ -16,27 +15,9 @@ export class SkyBoxMaterial extends Material {
   private static _textureCubeProp = ShaderProperty.getByName("material_CubeTexture");
   private static _rotationProp = ShaderProperty.getByName("material_Rotation");
   private static _exposureProp = ShaderProperty.getByName("material_Exposure");
-  private static _decodeSkyRGBMMacro = ShaderMacro.getByName("MATERIAL_IS_DECODE_SKY_RGBM");
 
-  private _textureDecodeRGBM: boolean = false;
   private _tintColor: Color = new Color(1, 1, 1, 1);
 
-  /**
-   * Whether to decode texture with RGBM format.
-   */
-  get textureDecodeRGBM(): boolean {
-    return this._textureDecodeRGBM;
-  }
-
-  set textureDecodeRGBM(value: boolean) {
-    this._textureDecodeRGBM = value;
-    if (value) {
-      this.shaderData.enableMacro(SkyBoxMaterial._decodeSkyRGBMMacro);
-    } else {
-      this.shaderData.disableMacro(SkyBoxMaterial._decodeSkyRGBMMacro);
-    }
-  }
-
   /**
    * Texture of the sky box material.
    */
diff --git a/packages/loader/src/EnvLoader.ts b/packages/loader/src/EnvLoader.ts
diff --git a/packages/loader/src/SceneLoader.ts b/packages/loader/src/SceneLoader.ts
diff --git a/packages/shader/src/shaders/Common.glsl b/packages/shader/src/shaders/Common.glsl
diff --git a/packages/shader/src/shaders/shadingPBR/LightIndirectFunctions.glsl b/packages/shader/src/shaders/shadingPBR/LightIndirectFunctions.glsl
diff --git a/tests/src/core/Light.test.ts b/tests/src/core/Light.test.ts
diff --git a/tests/src/core/model/ambientLight.ts b/tests/src/core/model/ambientLight.ts
diff --git a/tests/src/core/resource/ResourceManager.test.ts b/tests/src/core/resource/ResourceManager.test.ts
diff --git a/tests/src/loader/SceneParser.test.ts b/tests/src/loader/SceneParser.test.ts
diff --git a/tests/src/shader-lab/ShaderValidate.ts b/tests/src/shader-lab/ShaderValidate.ts

Original file line number	Diff line number	Diff line change
`@@ -49,7 +49,7 @@ async function main() {`
`49`	`49`	`.load([`
`50`	`50`	`{`
`51`	`51`	`type: AssetType.Env,`
`52`		`- url: "https://gw.alipayobjects.com/os/bmw-prod/f369110c-0e33-47eb-8296-756e9c80f254.bin"`
	`52`	`+ url: "https://mdn.alipayobjects.com/oasis_be/afts/file/A*KabxT4d8GHcAAAAAgEAAAAgAekp5AQ/Internal/Bake/ambient.env"`
`53`	`53`	`},`
`54`	`54`	`{`
`55`	`55`	`url: "https://gw.alipayobjects.com/os/bmw-prod/150e44f6-7810-4c45-8029-3575d36aff30.gltf",`