How can I adjust Shaders?

RetroArch Additions Shaders
#1

Hi friends!

Pls, I would like to know if there is possibility of adjust brightness or light to shader “gbc-2x.cgp” ?

This is the path: “shaders_cg\handheld\console-border\gbc-2x.cgp”

I wonder if I have to edit some files (?). I’m still a newbie. As you well know, the shader it has low backlight.

Pls, see the snapshot :

Appreciate any help …

Thank you in advance!

#2

You can put the misc/image-adjustment shader as a first pass by editing the gbc-2x cgp. That will let you boost the brightness of the image before the LCD effect gets applied.

#3

First of all, many thanks for replying, hunterk. I value your comment, but I also confess to not entirely understand respect what you say …

Pls, could you clarify this for me once more? Could show me how to do that ?

P.S. I’m just starting …

Many thanks in advance!

#4

The cgp files are just plaintext files that tell RetroArch how to combine different shaders. If you open the gbc-2x.cgp in a text editor (notepad++ is good and free), you’ll see a number of shaders (shaders = 2 or whatever) and then a bunch of lines labeled “whatever0” (shader0, filter_linear1, etc.). That number tells which shader pass it applies to.

So, to add in a new shader at the beginning, change shaders = 2 to shaders = 3, change all of the shader1 stuff to shader2, all of the shader0 stuff to shader1 and then add in a new shader0 = “…/…/misc/image-adjustment.cg”.

#5

Sorry for the delay, Mr. Hunterk!

Once again, thanks for your time. Pls, see the shader:

shaders = "2"


shader0 = "../lcd_cgwg/lcd-grid.cg"

filter_linear0 = "false"

wrap_mode0 = "clamp_to_border"

scale_type_x0 = "source"

scale_x0 = "4.000000"

scale_type_y0 = "source"

scale_y0 = "4.000000"


shader1 = "shader-files/gb-pass-5.cg"

filter_linear1 = "true"

wrap_mode1 = "clamp_to_border"


parameters = "SCALE;OUT_X;OUT_Y;GRID_STRENGTH"

GRID_STRENGTH = "0.150000"

SCALE = "0.5"

OUT_X = "1600.0"

OUT_Y = "800.0"


textures = "BORDER"

BORDER = "resources/gba-border-square-4x.png"

BORDER_linear = "true"

BORDER_wrap_mode = "clamp_to_border"

BORDER_mipmap = "false"

Pls, I wonder how it would change …(?)

I simply want to know how to adjust brightness or light of shader. I really cannot understand what he means with “misc/image-adjustment.cg” (?)

Thanks so much for everything.

#6

something like this:

shaders = "3"
shader0 = "../../misc/image-adjustment.cg"
filter_linear0 = false

shader1 = "../lcd_cgwg/lcd-grid.cg"

filter_linear1 = "false"

wrap_mode1 = "clamp_to_border"

scale_type_x1 = "source"

scale_x1 = "4.000000"

scale_type_y1 = "source"

scale_y1 = "4.000000"


shader2 = "shader-files/gb-pass-5.cg"

filter_linear2 = "true"

wrap_mode2 = "clamp_to_border"


parameters = "SCALE;OUT_X;OUT_Y;GRID_STRENGTH"

GRID_STRENGTH = "0.150000"

SCALE = "0.5"

OUT_X = "1600.0"

OUT_Y = "800.0"


textures = "BORDER"

BORDER = "resources/gba-border-square-4x.png"

BORDER_linear = "true"

BORDER_wrap_mode = "clamp_to_border"

BORDER_mipmap = "false"

Then you can go into the shader menu and mess with the parameters to make it brighter.

#7

Your help is greatly appreciated Hunterk!

All is OK!

Many thanks to you all for your support.