Fading PostFX

#1 You can code your own postFx transition with a shader constant.
The postFx system is searching for a method called setShaderConsts()
If this method presents,then it is executed and your shader constants are added to constant's buffer.

For example:

function YourPostFX::setShaderConsts( %this )
{
   %this.setShaderConst( "$transition", evaluateTransition() );
}

where evaluateTransition() have to return a value in [0-1] range.
Then transition used in a shader:

uniform float transition;

now you can lerp the final color based on its value.
When the color fade out,you can turn off the fullscreen shader.

#2 Thanks Ivan - that's a great start. I'm new to shader programming - in fact I'm learning by taking your shaders apart (from the shader pack) and modifying them to see what results they give.

I'll have a play with your suggestion and see what I can come up with.

#3 Just complementing what Ivan said: setShaderConsts() is called every frame before rendering the post effect, so you can easily use it to change the values of shader constants over time.

#4 Perfect - thanks both! That's solved that one.

#5 @Eikon Games

I have just posted a resource about this:
www.torquepowered.com/community/resources/view/19429

#6 BTW, another method that doesn't rely on a PostFX is to place a GuiFadeinBitmapCtrl with an empty "bitmap" property over your GameTSCtrl and set it up such that it only does a fade-out. This will progressively cover the underlying rendered scene until it finally goes to full black.

Downside is that without a code modification, you can only fade to black and not to another color.

//BTW: I modified GuiFadeinBitmapCtrl to have a new "fadeColor" property that allows to specify a fade-from and fade-to color other than the default black. Change will be included in b2.