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RBR by night, working beta

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Giorgio262

Joined: 10 Oct 2006
Posts: 380

Posted: Fri Oct 27, 17:48

I'm yet to see a single picture that makes me want a night mod, and quite frankly I don't see why anybody would want it. As far as I could see, to drive, at best, you just see darkness and the close objects lightened pretty badly, without any decent shadow. That is not nice to look at at all. Just as much as I didn't like it in CMcR 1 and then in RC2000. Then, even replays are not nice to look at. So as long as night sim is this rudimental I don't see any use for it. You may get excited about the idea, but the thing itself is nothing to make RBR any better.

black f.

Joined: 10 Apr 2005
Posts: 901

Posted: Fri Oct 27, 17:53

is imposible to create dynamic shadows, the graphic engine needs to be rewrited for that, thats way beyond my knowledge. i'm sorry Giorgio262, i've tryed my best but don't worry it will not happen again. beside whats the point, there are alot of racing games around with night mod and dynamic shadows, feel free to choose

Jim B

Joined: 08 May 2005
Posts: 261

Posted: Fri Oct 27, 19:41

Thank you for that comment Giorgio262, very helpful, and constructive, I'm sure it really inspires Frank. If you've got nothing constructive to say, don't say anything at all. Its fantastic to have this mod in RBR. Are you still working on this mod Frank? Regards, Last edited by Jim B on Mon Oct 30, 12:05; edited 1 time in total

black f.

Joined: 10 Apr 2005
Posts: 901

Posted: Fri Oct 27, 20:19

thanks Jim, unfortunately is no easy. what pushed me to get this mod so far was the fact that it wasn't done b4, at least i didn't seen a shader mod for any other game yet, so it was some sort of "nerdy" ambition and i think it ended pretty well, much better then i expected, so no, childish remarks wil not spoil it, but there will be no update for it, i really don't see what can i do to make it better. what will make me really happy is to see somebody else getting involved in such modding, and if that will happen i'll be here to help, i hope

guybo

Joined: 01 Dec 2004
Posts: 480

Posted: Sat Oct 28, 00:12

Actually Giorgio, you are talking out your ass. It's not my habit to defend Black F. but this is a promising mod if it can be made so as to not kill the FPS and somehow be integrated into the game or perhaps RSRBR3 it will be a great additin to RBR. Have you ever tried the night mod, Giorgio? To play RBR at night (no shadows and all ) is like playing a totally new game but with the same awesome RBR physics and cars. Before you speak, try it out.

black f.

Joined: 10 Apr 2005
Posts: 901

Posted: Sat Oct 28, 14:05

what do you mean with integrated in game? detail that a little maybe there is something which can be done. about the RSRBR, this night thing is independent from content so it should work with that modpack.

szszp

Joined: 07 Oct 2003
Posts: 951

Posted: Sat Oct 28, 18:05

Night mode looks amazing, despite the performance drop. It makes me wonder why the original developers didn't include this feature...

stenyak

Joined: 04 May 2003
Posts: 883

Posted: Mon Oct 30, 00:56

szszp wrote:

Night mode looks amazing, despite the performance drop. It makes me wonder why the original developers didn't include this feature...

The problem is not being able to, but having the time and money. Of course they could have included this and many more things (like tire wear or wings for example).
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black f.

Joined: 10 Apr 2005
Posts: 901

Posted: Mon Oct 30, 09:11

the answer is in the question: performance drop on outdated video cards, at the time rbr was writted (don't it mix with the release date), almost all the cards available were outdated for speedy per pixel lightning.

Flagmo-T

Joined: 28 Nov 2005
Posts: 571

Posted: Sun Feb 18, 02:31

Wow Thanks.. Black_F You are a truly creative Coder, this is amazing what you have done here, so creative and visionary, and yet, it shouldn't have bin possible, but you found your way .. Applause.. BTW: I actually don't feel any drops in FPS, I've even recorded a nice quality AVi from The tanner stage with fps in size 800x500 , and with Tommi hervela behind the wheel.. It's smoking It's damn fast and it's quite real in the inside view, But on the full follow cam it's not all the time, so amazing in the view, But still workable in a Video post production, there is some amazing views in it, that would give a RBR Video some nice Car follow Cuts.. Ps. I'm Using Nhancer on a Asus A8N-sli_Premium. Amd +4200 Dual CPU. Club3D7950GTX. "split to 2 screens, only when side running RBR" 3 GB pc3200 Geil. Sata system. Monitors: Phillips brilliance 109p4 19". Sony Bravia 32" LCD. - - - - - - - When the Night mod is installed. Q. Have The tracksettings.ini any priority on the light/weather/car/particle/ settings of the map/stage ? ?. I Would like to have more control over the track settings, if possible .....(video) Q. Would it be possible to have a Moon that smoothly light's up the map, and wouldn't it fade out the black artifact around the light corn ? ?. To balance to light setting between the Mod and the overall landscape. .....(Video) Q. Where do i go, when i want to lower the inside car light, and the front hood ? ?. It would look even more real, from the inside view. .....(Video) Q. Would it be possible to have the rear lights giving same light effect, just smaller of course.. ?. (Video) Q. What about the staff, any controls over there light ? Q. Can i Have yellow light instead ? Q. Is adding a little fog possible ? (Sorry where else to ask these Questions.) I'm settling for a early Morning Video type, That i think would be the best view overall, when making a HQ Video with the mod installed, That is if! adjusting is possible. Otherwise i go for the second best.. No worries - - - - - - - I need to ad, that when having the Night mod installed, and Driving a Rainy stage inside view, the windshield is one amazing piece of work, I suddenly see it, i haven't seen it like that before .. Wow i say.. Thanks Black_f Amazing Work. Regards Flagmo-T _________________ Deep in my mind i believe everything is possible - https://www.flagmo-t.com/ Is my Richard Burns rally playground.

black f.

Joined: 10 Apr 2005
Posts: 901

Posted: Sun Feb 18, 04:32

whoa, thanks! actually i was looking for some input from you since you have a monster system there for quite a while Smile

the in game controls are as readme says, not much but you can do alot more customisation by editing the shader files which are txt.

in example the "spot.h"... this is a function shared by several shaders.

Code:

float spot( float3 vertPos,
      float3 lightPos,
      float3 lightDir,
      sampler attenuationMap,
      float range)
{
float3 v2l = vertPos - lightPos;
float distance = length(v2l);
float attenuation = 0.2;
float angle = dot(normalize(v2l), - lightDir);

if(angle < 0)
{
   attenuation = 0.2;
}
else
{
   float2 uv = float2(angle, distance/range);

   float4 intensity = tex2D(attenuationMap, uv);
   attenuation = intensity.x;
}
return attenuation;
}

basically :
starts with calculating 2 things:
1: the angle between the light's central ray (light direction) and the imaginary line between the "mesh point" and light position, this angle is used to determine if the point is inside cone of light or not.
2: the distance between the point and the light, this distance is used for linear atenuation calculation.

this 2 are done with:

Code:

float3 v2l = vertPos - lightPos;
float distance = length(v2l);
float attenuation = 0.2;
float angle = dot(normalize(v2l), - lightDir);

is not much to change here, but further you can change how angle and distance
are influencing the result.

there are atleast 2 ways to do a spot like attenuation, or better say lightning calculation:

one is pure mathematical which involves formulaes you can find on web or made up Smile

, the other is to use textures.

the texture way is used in that spot.h, more precisely, the angle and distance values are used to calculate a point (a pixel) location in the "test.dds".

with this position calculated by :

Code:

float2 uv = float2(angle, distance/range);

the color of the pixel from texture is readed

Code:

float4 intensity = tex2D(attenuationMap, uv);

"float4 intensity" is actually a color, 4 values in fasion RGBA, A being alpha, like:

intensity.x = RED
intensity.y = GREEN
intensity.z = BUE
intensity.w = ALPHA
worths mentioning tha you can use r,g,b,a instead of x,y,z,w.

all four values are in a 0.0 to 1.0 range, matching the 0 - 255 range as in photoshop color picker;

the

Code:

attenuation = intensity.x;

takes only the red component of the pixel from texture and returns it as the function ends.

i used this "texture lookup" aproach because is more easy for most of the moders to obtain different spot lights behaviours by simply changin a texture in photoshop instead of messing with code.
as a quick note, as readme says:
-test.dds controls the light intensity, so in case you want your own map:
horizontal - maps the intensity of light in raport with angle;
vertical - intensity map for distance;

on a higher lever there are the pixel shaders which are making use of this function.
in example the one from PS_16.h.

if you cant make a yellow light in spot.h because as it is it calculates a factor of attenuation wich is the same for all 3 channels, and for some reason you dont like to do it by changing the [COLOR] in "light.ini", then the shader is the place you can do it.

in example, in PS_16.h:
after

Code:

outColorA.xyz *= lightParameters.w;

you can add

Code:

outColorA.z *= 0.5;

this takes the blue component of the calculated color at that moment, whatever it may be and cuts half of it, this should make the result way more yellowish Smile

there are more tweaks you can do by adding some constant factors in some places like that 0.5 used for blue above;

and sure, there is always the "hard" way to recode the whole shader.

it is posible to add more lights too, as it is the mod handles only to

Code:

outColor.xyz *= (spot(vertPos,light_R,lightDir,attenuationMap,lightParameters.x) +
spot(vertPos,light_L,lightDir,attenuationMap,lightParameters.x));

as you can see, the "spot" attenuation is evaluated 2 times, the only difference being the light position, light_L and light_R;

to add red back lights some basic code must be added;

first the lightDir, should be mirrored, then the brake light positions which are already available at the top of the shader can be used:

Code:

   float3 brakeLightDirection = - lightDir;

   //set initial brake light as red
   float3 brakeLightContribution = float3(1,0.2,0.2);

   //calculate the amount of red
   brakeLightContribution.x = (spot(vertPos,brake_L,brakeLightDirection,attenuationMap,lightParameters.x) +
                        spot(vertPos,brake_R,brakeLightDirection,attenuationMap,lightParameters.x));

   //add the brake light to the final color
   outColorA.xyz += outColorA.xyz*brakeLightContribution;

so in PS_16.h you will end with something like:

Code:

.................
float distance = length(vertPos - light_R);
if(distance > lightParameters.x)
{
   outColorA.xyz *= 0.2;
}
else
{
   outColorA.xyz *= (spot(vertPos,light_R,lightDir,attenuationMap,lightParameters.x) +
                  spot(vertPos,light_L,lightDir,attenuationMap,lightParameters.x));

   float3 brakeLightDirection = - lightDir;

   //set initial brake light as red
   float3 brakeLightContribution = float3(1,0.2,0.2);

   //calculate the amount of red
   brakeLightContribution.x = (spot(vertPos,brake_L,brakeLightDirection,attenuationMap,lightParameters.x) +
                        spot(vertPos,brake_R,brakeLightDirection,attenuationMap,lightParameters.x));

   //add the brake light to the final color
   outColorA.xyz += outColorA.xyz*brakeLightContribution;
}
outColorA.xyz *= lightParameters.w;

return outColorA;
}

please note i didnt tested this last part because my rbr is set up for another project at this moment, quite a mess actually but anyway it should work, and if so, the only big problem will be the fact the brake lights are not spots but kinda omnidirectional so to say, not counting a even bigger FPS drop caused by 2 extra lights Smile

which should not be a problem for your system.

i didnt changed the sky so the moon is the sun actually, but this may change with the project i'm curently working on, we'll see.

i know math sucks but the math used here is quite basic actually, nothing to be afraid of, also, to make some tweaks you dont really need to understand every bit of code, sure you may need to know what a "float" means and that "float4" means actually "4 floats"... Smile

enough i guess, have fun!

Flagmo-T

Joined: 28 Nov 2005
Posts: 571

Posted: Sun Feb 18, 19:25

Thanks Black... Nice feed back to my reply, I will get into it as soon as possible.. and of course show you results along the way.. Regards Flag mo-T ps. while I'm ad it. Can i Open a (rar) LBS-file ?, and How ? the sky boxes are in a LBS file, I have tried with Winrar, But No!!.. _________________ Deep in my mind i believe everything is possible - https://www.flagmo-t.com/ Is my Richard Burns rally playground.

Rallymec

Joined: 13 Dec 2006
Posts: 128

Posted: Tue Feb 27, 18:05

Super mod that's sure ! But tell me, Is it possible the car don't shine ? because (we're agree)we can the Subaru in the dark, the blue the yellow etc... Sorry for my bad english, have you understand me _________________ FAN DE RALLYE, HOMME DE FOLIE !!!

subaru555rally

Joined: 30 Sep 2007
Posts: 2

Posted: Mon Mar 17, 08:53

This is an outstanding mod!! I never thought this would even be possible for use in RBR. I've been trying it out and I am very impressed. I was wondering if there is an easy way to make the shine on the car not as bright without editing the TrackSettings.ini file? Car_Ambient_Lighting = 1.000000 Car_Deep_Shadow_Alpha = 1.000000 Car_Diffuse_Lighting = 1.000000 Car_Lighting = 1.000000 I found by lowering these numbers you can make the car darker but there may be an easier way instead of editing every track in the file? Also if someone knows how to take off the shadow from the sun on the ground from the car that can still be seen when using the night mod please let me know.

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