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Rob Ainscough

Bloom adjustments for P3D V2.5 (12945)

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I've avoided making any Bloom adjustments since I installed P3D V2.5 on my new main sim PC, but decided I'd try out a few changes and post my results:

 

Location ...\Lockheed Martin\Prepar3D v2\ShadersHLSL\PostProcess

 

Backup these two files before proceeding to change them. 

 

File ... NVGBloom.hlsl

Line 13
static const float BloomMagnitude = 2.0f;
Line 15
static const float BlurSigma = 4.0f;
 
File ... HDR.hlsl

Line 12

static const float BloomBlurSigma = 2.4;

 

Make sure P3D is NOT running when you make these changes.  Also, delete your shaders folder after any file edits BEFORE you start P3D.

 

Shaders folder location (example):

C:\Users\YourUserName\AppData\Local\Lockheed Martin\Prepar3D v2\Shaders

 

These are some images (warning large size 3840 x 2160) comparing the difference:

 

Before

489548f178b6e9d6be493064c14711c6.jpg

 

After

49b34296788258e8c87bd4f2459f96a5.jpg

 

Before

b51c24691518dc8a48321743f7770ddf.jpg

 

After

65921c77814b8e1425baf5158305939f.jpg

 

Cheers, Rob.

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Hi Rob,

 

Thanks for the info.

 

Already since v2.3 I have 2 HDR batch files : nighttime flying / daytime flying

Before flying I choose the appropriate one and it installs the HDR + Bloom settings for that flight.   

Shortly said : nighttime flying has less effect than daytime flying, like what you suggest above.

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Hi Rob,

 

can you attach a comparison at 12 AM?

 

Thanks

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I am a little confused. Since when is there an NVGBloom.hlsl file as well? Is there a separate bloom effect now?

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can you attach a comparison at 12 AM?

 

The first shot at Split with PMDG 737 was at 12 AM.

 

But here is another 12 AM with RealAir TDuke 2 ... notice the gauges 

 

BEFORE

93fd87349d565f81a6a5f73545ec1af5.jpg

 

AFTER

3ad8b96138b40a4b2b4178491b7cf30c.jpg

 

 

 


Since when is there an NVGBloom.hlsl file as well? Is there a separate bloom effect now?

 

There are several bloom files that can be adjusted.

 

These adjustments are just about bloom ... they are not about making HDR less dark or making clouds more dark at night.

 

Cheers, Rob.

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Much superior to the original.

 

Thanks

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Tested, very good at any time of day or night.

 

Thanks

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Hi Rob,

 

Thanks for the info.

 

Already since v2.3 I have 2 HDR batch files : nighttime flying / daytime flying

Before flying I choose the appropriate one and it installs the HDR + Bloom settings for that flight.   

Shortly said : nighttime flying has less effect than daytime flying, like what you suggest above.

 

Hi Gerard. Care to share your files? I've been trying to create two distinct HDR files, each for either day-or night time flying but with modest results. 

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Hi Gerard. Care to share your files? I've been trying to create two distinct HDR files, each for either day-or night time flying but with modest results. 

 

Sent me a pm with your email adress and I will upload it to WeTransfer..

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Superb, thanks a lot!

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Works great.  Thanks Rob

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