Another Openrails Skydome texture #5.incorrect Read Me file with errors

[dreamcatcher1962]

Hallo fellow trainsimmers .

After playing around with one of the Monogame beta versions of OR, released on Elvas Tower, I discovered, that I made a gross mistake in the 'Read Me' file accompanying the OR Skydome texture #5.

In the 'Read Me' file, I'm giving directions on how to "turn off the Sun", but after using my own medicine, from the included "Read Me" file, in a OR Monogame install, the Sun suddenly appeared around 12:00 Noon. WTF .

From the included 'read me File'.

In order to "turn of" the OR Sun, You need to make the following changes to the SkyShader.fx, located in Openrails\Content folder.

From this:


// Sun glow
// Coefficients selected by the author to achieve the desired appearance - fot limits the effect
skyColor += angleRcp * Fog.y;


To this


// Sun glow
// Coefficients selected by the author to achieve the desired appearance - fot limits the effect
skyColor += angleRcp * 0.000 * Fog.y;


This is simply not correct.
Instead You have to change the text in the skyShader.fx from this:


// Sun glow
// Coefficients selected by the author to achieve the desired appearance - fot limits the effect
skyColor += angleRcp * Fog.y;

// increase orange at sunset - fog limits the effect
if (LightVector.x < 0)
{
skyColor.r += SkyColor.z * angleRcp * Fog.z;
skyColor.g += skyColor.r * Fog.w;
}


To this:


// Sun glow
// Coefficients selected by the author to achieve the desired appearance - fot limits the effect
skyColor.b += angleRcp * 0.000 * Fog.y;

// increase orange at sunset - fog limits the effect
if (LightVector.x < 0)
{
skyColor.b += SkyColor.z * angleRcp * 0.000 * Fog.z;
skyColor.b += skyColor.r * Fog.w;
}


After a back-up of the original SkyShader.fx, you can copy & paste the above text into the SkyShader.fx file.

This will remove the Sun, and it will change the Gamma shift, that happens around 12:00 Noon in OR. Around 12:00 Noon, the whole OR Skydome changes, and becomes greenish tinted. I personally never liked that greenish tint, but the above text will get rid of it.

Again, sorry for uploading an incomplete read me file / not testing me own files properly

The best regards Claus (cvo2010)

[ossie]

No need for apologies Claus. Your skydome textures have made a huge difference to the appearance of the sim and I'm sure a lot of people are grateful for your efforts. Thank you!

[qballbandit]

Ditto x10!

Never caught the issue, as I only used that one during dusk/dawm times of day.

One thing I do notice when using the original, is that I get an orange glow all throughout the dark hours of night on one section of the sky.
Maybe my edit was incorrect? Have you noticed this?

[advut]

Thanks for your sky textures. Personally I like the tint after 12:00. You seem knowledgeable on shader files, so can you help me to get a warmer colour temperature? OR is quite bluish IMO. Also, do you know how to change the fog colour? Some distant blue haze with a overall warmer appearance will look great.

[Don_SF]

I agree guys! Thank you Claus. I'm new to OR but I've downloaded some of the skydomes and the variety is great. Much appreciated.

[dreamcatcher1962]

Thank you Pete, Neil, advut and Don .

Neil, I can't say, that I noticed an orange glow, but then again, I haven't used my own faulty edits for more than a few minutes in a new OR install .

Advut, If you save a copy of the Skyshader.fx somewhere safe, you can edit the original OR SkyShader.fx to your heart's content.
That's how I do it, and with a back-up of the file, you can't ruin or mess up anything .

The best regards Claus