sebastienlagarde
7 年前
当前提交
7c5ace88
共有 5 个文件被更改,包括 3 次插入 和 151 次删除
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3ScriptableRenderPipeline/HDRenderPipeline/HDRP/Editor/Lighting/HDLightEditor.Styles.cs
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81ScriptableRenderPipeline/HDRenderPipeline/HDRP/Editor/Lighting/HDLightEditor.cs
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7ScriptableRenderPipeline/HDRenderPipeline/HDRP/Lighting/HDAdditionalLightData.cs
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52ScriptableRenderPipeline/HDRenderPipeline/HDRP/Lighting/LightUtils.cs
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11ScriptableRenderPipeline/HDRenderPipeline/HDRP/Lighting/LightUtils.cs.meta
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using System; |
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using System.Collections.Generic; |
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using System.Linq; |
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namespace UnityEngine.Experimental.Rendering.HDPipeline |
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{ |
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public class LightUtils |
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{ |
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// Physical light unit helper
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// All light unit are in lumen (Luminous power)
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// Punctual light (point, spot) are convert to candela (cd = lumens / steradian)
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// Area light are convert to luminance (cd/(m^2*steradian)) with the following formulation: Luminous Power / (Area * PI * steradian)
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// Ref: Moving Frostbite to PBR
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public static float ConvertPointLightIntensity(float intensity) |
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{ |
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return intensity / (4.0f * Mathf.PI); |
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} |
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// angle is the full angle, not the half angle in radiant
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public static float ConvertSpotLightIntensity(float intensity, float angle, bool exact) |
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{ |
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return exact ? intensity / (2.0f * (1.0f - Mathf.Cos(angle / 2.0f)) * Mathf.PI) : intensity / Mathf.PI; |
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} |
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// angleA and angleB are the full opening angle, not half angle
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public static float ConvertFrustrumLightIntensity(float intensity, float angleA, float angleB) |
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{ |
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return intensity / (4.0f * Mathf.Asin(Mathf.Sin(angleA / 2.0f) * Mathf.Sin(angleB / 2.0f))); |
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} |
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public static float ConvertSphereLightIntensity(float intensity, float sphereRadius) |
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{ |
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return intensity / (4.0f * Mathf.PI * sphereRadius * sphereRadius * Mathf.PI * Mathf.PI); |
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} |
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public static float ConvertDiscLightIntensity(float intensity, float discRadius) |
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{ |
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return intensity / (discRadius * discRadius * Mathf.PI * Mathf.PI); |
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} |
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public static float ConvertRectLightIntensity(float intensity, float width, float height) |
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{ |
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return intensity / (width * height * Mathf.PI); |
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} |
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public static float calculateLineLightArea(float intensity, float lineRadius, float lineWidth) |
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{ |
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return intensity / (2.0f * Mathf.PI * lineRadius * lineWidth * Mathf.PI); |
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} |
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} |
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} |
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fileFormatVersion: 2 |
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guid: 04acc467a6eef0b45b027f43ed25662b |
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MonoImporter: |
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externalObjects: {} |
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serializedVersion: 2 |
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defaultReferences: [] |
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executionOrder: 0 |
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icon: {instanceID: 0} |
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userData: |
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assetBundleName: |
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assetBundleVariant: |
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