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chainsawkitten

Member Since 27 Mar 2007
Offline Last Active Mar 06 2016 01:58 PM

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Community Stats

Group GMC Member
Active Posts 1409
Profile Views 9358
Member Title GMC Member
Age Age Unknown
Birthday Birthday Unknown
Gender
Male
Location
Sweden
Interests
Music, Film, Art
Version
GM:Studio

Contact Information

Website URL http://chainsawkitten.net

122 Lover of Cheese!

Latest Visitors

boxyman_16
12 Dec 2015 - 10:33
Chaosmore
03 Jul 2015 - 14:59
Shamanovitch
01 Jun 2015 - 22:37
MrMcMelonLord
31 May 2015 - 16:01
Alice
19 May 2015 - 15:42

Topics I've Started

Photoshop And Gimp Layer / Blend Modes

10 January 2014 - 03:59 PM

GMZ: https://dl.dropboxus...Layer Modes.gmz

I remember there were quite a few instances where I wanted to paint an overlay over my game using the grain merge blend mode from GIMP. Now, with shaders, it's possible! (And even easy.) Here are a bunch of GIMP's blend modes as shaders. You can cycle through them with left and right arrow keys and increase / decrease alpha of the overlay image with up and down. All are fragment shaders.

Reference images
Image

Overlay

Grain extract

Spoiler

//
// Grain extract shader
//

varying vec2 v_vTexcoord;
varying vec4 v_vColour;

uniform sampler2D texScreen;

void main()
{
    vec4 Mask = v_vColour * texture2D(gm_BaseTexture, v_vTexcoord);;
    vec4 InColor = texture2D(texScreen, v_vTexcoord);
    vec4 OutColor = vec4(InColor.rgb - Mask.rgb + 0.5, InColor.a);
    
    gl_FragColor = mix(InColor, OutColor, Mask.a);
}

Grain merge

Spoiler

//
// Grain merge shader
//

varying vec2 v_vTexcoord;
varying vec4 v_vColour;

uniform sampler2D texScreen;

void main()
{
    vec4 Mask = v_vColour * texture2D(gm_BaseTexture, v_vTexcoord);;
    vec4 InColor = texture2D(texScreen, v_vTexcoord);
    vec4 OutColor = vec4(InColor.rgb + Mask.rgb - 0.5, InColor.a);
    
    gl_FragColor = mix(InColor, OutColor, Mask.a);
}

Difference

Spoiler

//
// Difference shader
//

varying vec2 v_vTexcoord;
varying vec4 v_vColour;

uniform sampler2D texScreen;

void main()
{
    vec4 Mask = v_vColour * texture2D(gm_BaseTexture, v_vTexcoord);;
    vec4 InColor = texture2D(texScreen, v_vTexcoord);
    vec4 OutColor = vec4(abs(InColor.rgb - Mask.rgb), InColor.a);
    
    gl_FragColor = mix(InColor, OutColor, Mask.a);
}

Addition

Spoiler

//
// Addition shader
//

varying vec2 v_vTexcoord;
varying vec4 v_vColour;

uniform sampler2D texScreen;

void main()
{
    vec4 Mask = v_vColour * texture2D(gm_BaseTexture, v_vTexcoord);;
    vec4 InColor = texture2D(texScreen, v_vTexcoord);
    vec4 OutColor = vec4(InColor.rgb + Mask.rgb, InColor.a);
    
    gl_FragColor = mix(InColor, OutColor, Mask.a);
}

Subtract

Spoiler

//
// Subtract shader
//

varying vec2 v_vTexcoord;
varying vec4 v_vColour;

uniform sampler2D texScreen;

void main()
{
    vec4 Mask = v_vColour * texture2D(gm_BaseTexture, v_vTexcoord);;
    vec4 InColor = texture2D(texScreen, v_vTexcoord);
    vec4 OutColor = vec4(InColor.rgb - Mask.rgb, InColor.a);
    
    gl_FragColor = mix(InColor, OutColor, Mask.a);
}

Lighten only

Spoiler

//
// Lighten only shader
//

varying vec2 v_vTexcoord;
varying vec4 v_vColour;

uniform sampler2D texScreen;

void main()
{
    vec4 Mask = v_vColour * texture2D(gm_BaseTexture, v_vTexcoord);;
    vec4 InColor = texture2D(texScreen, v_vTexcoord);
    vec4 OutColor = vec4(max(InColor.rgb, Mask.rgb), InColor.a);
    
    gl_FragColor = mix(InColor, OutColor, Mask.a);
}

Darken only

Spoiler

//
// Darken only shader
//

varying vec2 v_vTexcoord;
varying vec4 v_vColour;

uniform sampler2D texScreen;

void main()
{
    vec4 Mask = v_vColour * texture2D(gm_BaseTexture, v_vTexcoord);;
    vec4 InColor = texture2D(texScreen, v_vTexcoord);
    vec4 OutColor = vec4(min(InColor.rgb, Mask.rgb), InColor.a);
    
    gl_FragColor = mix(InColor, OutColor, Mask.a);
}

N3QN also made bunch of shaders for some Photoshop / GIMP layer / blend modes that are available in his topic Photoshop Style Tools And Blend Mode Shaders. Check them out. If what you're looking for isn't here, he might have it.

[GMCJAM#8] ☢

28 October 2012 - 11:28 AM

You have one life. Stay alive.

Screens

Spoiler

Hints

Spoiler

Download
Version 0.9 - Final Jam version
Version 0.8
Version 0.7
Version 0.6
Version 0.5
Version 0.4
Version 0.3
Version 0.2
~~Version 0.1~~

The game will probably be rather surface-heavy so I'd appreciate it if people with low-end/old graphics cards would see if it works at all / how much lag you get. ~~Also adjusts itself to your screen resolution so people with screens other than 1980x1080, please test.~~ Nevermind, works just fine.

Day 2: 13:50
Version 0.2

Supersound integration
Enter cabin (bandages if bleeding)
Coughing fits
Icon
Wine rack
Wine
Drinking
Intoxication
FPS
Wrapper

The Lighthouse

20 February 2011 - 01:07 AM

A man tired of his commonday life heads for an autumn taking care of the lighthouse on the outmost island of the archipelago. But war breaks loose and, as he's afraid to return to the mainland, a single radio becomes his only connection with the outside world.

A tribute to Pappan och havet (Moominpappa at Sea) and Offret (The Sacrifice), in my opinion two of the greatest pieces of literature/cinema ever written/filmed.

Download (windows)

Made for the Rapid Development Contest.
If you think the screen is too small, you can press F4, but 2x mode isn't really working all that well...

Sox Interface

04 May 2010 - 06:17 PM

Sox Interface

Posted Image

Description
Sox Interface is a batch interface for SoX. It can be used to convert audio files from one format to another.
Simply select the input format, source, output format and directory and click on Convert.

The following formats are supported:
mp3, wav, ogg, aiff, au, 8svx, avr, cdda, gsm, htk, hcom, maud, pcm, snd, voc, wve, xa

Download

Aren't there like thousand freeware programs like this already?
Yes, but when I tried them on my computer either:
1. They didn't support batch processing. Just one file at a time.
2. The output file was either completely silent or filled with static noise.
Probably a problem with my computer but still pretty damn annoying.

So you made this yourself?
Not exactly. This program uses SoX (Sound eXchange), an excellent library for audio conversion and effects. This just makes converting many files at once easier.
Why don't you check out SoX? It's awesome!

Why doesn't it work?
Make sure you've unzipped it before using. It probably won't work if you don't.

Why does it freeze?
It doesn't. It's converting the audio and it may take a while (you know, like audio conversion does...). Just do something else whilst waiting for it.

Judith

29 August 2009 - 03:01 PM

Judith
Posted Image

A game (for the GameCOG Explosion competition).

Controls
Arrow keys - Move
Z - Talk (while standing next to someone)

Download

chainsawkitten

Community Stats

Contact Information

Latest Visitors

Topics I've Started

Photoshop And Gimp Layer / Blend Modes

[GMCJAM#8] ☢

The Lighthouse

Sox Interface

Judith

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