internal DensityVolumeEngineData ConvertToEngineData()
{
DensityVolumeEngineData data = new DensityVolumeEngineData();
data.extinction = VolumeRenderingUtils.ExtinctionFromMeanFreePath(meanFreePath);
data.scattering = VolumeRenderingUtils.ScatteringFromExtinctionAndAlbedo(data.extinction, (Vector3)(Vector4)albedo);
data.textureIndex = textureIndex;
data.textureScroll = textureOffset;
data.textureTiling = textureTiling;
// Clamp to avoid NaNs.
Vector3 positiveFade = this.positiveFade;
Vector3 negativeFade = this.negativeFade;
data.rcpPosFaceFade.x = Mathf.Min(1.0f / positiveFade.x, float.MaxValue);
data.rcpPosFaceFade.y = Mathf.Min(1.0f / positiveFade.y, float.MaxValue);
data.rcpPosFaceFade.z = Mathf.Min(1.0f / positiveFade.z, float.MaxValue);
data.rcpNegFaceFade.y = Mathf.Min(1.0f / negativeFade.y, float.MaxValue);
data.rcpNegFaceFade.x = Mathf.Min(1.0f / negativeFade.x, float.MaxValue);
data.rcpNegFaceFade.z = Mathf.Min(1.0f / negativeFade.z, float.MaxValue);
data.invertFade = invertFade ? 1 : 0;
float distFadeLen = Mathf.Max(distanceFadeEnd - distanceFadeStart, 0.00001526f);
data.rcpDistFadeLen = 1.0f / distFadeLen;
data.endTimesRcpDistFadeLen = distanceFadeEnd * data.rcpDistFadeLen;
return(data);
}
internal LocalVolumetricFogEngineData ConvertToEngineData()
{
LocalVolumetricFogEngineData data = new LocalVolumetricFogEngineData();
data.extinction = VolumeRenderingUtils.ExtinctionFromMeanFreePath(meanFreePath);
data.scattering = VolumeRenderingUtils.ScatteringFromExtinctionAndAlbedo(data.extinction, (Vector4)albedo);
var atlas = LocalVolumetricFogManager.manager.volumeAtlas.GetAtlas();
data.atlasOffset = LocalVolumetricFogManager.manager.volumeAtlas.GetTextureOffset(volumeMask);
data.atlasOffset.x /= (float)atlas.width;
data.atlasOffset.y /= (float)atlas.height;
data.atlasOffset.z /= (float)atlas.volumeDepth;
data.useVolumeMask = volumeMask != null ? 1 : 0;
float volumeMaskSize = volumeMask != null ? (float)volumeMask.width : 0.0f; // Volume Mask Textures are always cubic
data.maskSize = new Vector4(volumeMaskSize / atlas.width, volumeMaskSize / atlas.height, volumeMaskSize / atlas.volumeDepth, volumeMaskSize);
data.textureScroll = textureOffset;
data.textureTiling = textureTiling;
// Clamp to avoid NaNs.
Vector3 positiveFade = this.positiveFade;
Vector3 negativeFade = this.negativeFade;
data.rcpPosFaceFade.x = Mathf.Min(1.0f / positiveFade.x, float.MaxValue);
data.rcpPosFaceFade.y = Mathf.Min(1.0f / positiveFade.y, float.MaxValue);
data.rcpPosFaceFade.z = Mathf.Min(1.0f / positiveFade.z, float.MaxValue);
data.rcpNegFaceFade.y = Mathf.Min(1.0f / negativeFade.y, float.MaxValue);
data.rcpNegFaceFade.x = Mathf.Min(1.0f / negativeFade.x, float.MaxValue);
data.rcpNegFaceFade.z = Mathf.Min(1.0f / negativeFade.z, float.MaxValue);
data.invertFade = invertFade ? 1 : 0;
data.falloffMode = falloffMode;
float distFadeLen = Mathf.Max(distanceFadeEnd - distanceFadeStart, 0.00001526f);
data.rcpDistFadeLen = 1.0f / distFadeLen;
data.endTimesRcpDistFadeLen = distanceFadeEnd * data.rcpDistFadeLen;
return(data);
}
