Useful Community Shaders Project

Author

Message

janbo

15

Years of Service

User Offline

Joined: 10th Nov 2008

Location: Germany

Posted: 13th Feb 2017 00:37 Edited at: 15th Jul 2017 01:30

Link

SetObjectShaderConstantByName()
Oh wow how could I miss this command

I once made my own solution for that problem with drawobject()
Would love to know how Paul solved it !?

Thanks MikeMax
And I guess...yes there should be SetObjectMeshShaderConstantByName() and SetSpriteShaderConstantByName() then

For your problem...lets see
Hm there is no command for drawing the mesh or setting it invisible
Maybe you create a temporary mesh/object with your shader which you draw over the other object/mesh right before you render the scene

Using AGKv2 Tier1

Back to top

Profile PM Email Website

MadBit

VIP Member

Gold Codemaster

14

Years of Service

User Offline

Joined: 25th Jun 2009

Location: Germany

Posted: 13th Feb 2017 08:49 Edited at: 13th Feb 2017 08:50

Link

MikeMax wrote: "2. Fog activation make the shader to throw an error with the agk_CameraPos declaration (previously declared ? i don't see where)"

I have already answered this question here (some posts above).

MikeMax wrote: "1. with animated models, when the normal shader is applied, animations no longer works "

This is a similar problem to the fog. The animation is realized with a shader. If you use your own shader, then you override the automatically generated code.
A solution would be to write your own code for the bone animation. Or intigrate the existing code in the normalmapping shader.

Here is the standard code that agk generate.

attribute highp vec3 position;
attribute mediump vec3 normal;
varying highp vec3 posVarying;
varying mediump vec3 normalVarying;
varying mediump vec3 lightVarying;
mediump vec3 GetVSLighting( mediump vec3 normal, highp vec3 pos );

uniform highp mat4 agk_ViewProj;
attribute highp vec2 uv;
varying highp vec2 uvVarying;
uniform highp vec4 uvBounds0;

attribute highp vec4 boneweights;
attribute mediump vec4 boneindices;
uniform highp vec4 agk_bonequats1[30];
uniform highp vec4 agk_bonequats2[30];

highp vec3 transformDQ( highp vec3 p, highp vec4 q1, highp vec4 q2 )
{
    p += 2.0 * cross( q1.xyz, cross(q1.xyz, p) + q1.w*p );
    p += 2.0 * (q1.w*q2.xyz - q2.w*q1.xyz + cross(q1.xyz,q2.xyz));
    return p;
}

void main()
{ 
    uvVarying = uv * uvBounds0.xy + uvBounds0.zw;
    highp vec4 q1 = agk_bonequats1[ int(boneindices.x) ] * boneweights.x;
    q1 += agk_bonequats1[ int(boneindices.y) ] * boneweights.y;
    q1 += agk_bonequats1[ int(boneindices.z) ] * boneweights.z;
    q1 += agk_bonequats1[ int(boneindices.w) ] * boneweights.w;
    highp vec4 q2 = agk_bonequats2[ int(boneindices.x) ] * boneweights.x;
    q2 += agk_bonequats2[ int(boneindices.y) ] * boneweights.y;
    q2 += agk_bonequats2[ int(boneindices.z) ] * boneweights.z;
    q2 += agk_bonequats2[ int(boneindices.w) ] * boneweights.w;
    highp float len = 1.0/length(q1);
    q1 *= len;
    q2 = (q2 - q1*dot(q1,q2)) * len;
    highp vec4 pos = vec4( transformDQ(position,q1,q2), 1.0 );
    gl_Position = agk_ViewProj * pos;

normalVarying = normal + 2.0*cross( q1.xyz, cross(q1.xyz,normal) + q1.w*normal );
    posVarying = pos.xyz;
    lightVarying = GetVSLighting( normalVarying, posVarying );
}

+ Code Snippet

attribute highp vec3 position;
attribute mediump vec3 normal;
varying highp vec3 posVarying;
varying mediump vec3 normalVarying;
varying mediump vec3 lightVarying;
mediump vec3 GetVSLighting( mediump vec3 normal, highp vec3 pos );

uniform highp mat4 agk_ViewProj;
attribute highp vec2 uv;
varying highp vec2 uvVarying;
uniform highp vec4 uvBounds0;

attribute highp vec4 boneweights;
attribute mediump vec4 boneindices;
uniform highp vec4 agk_bonequats1[30];
uniform highp vec4 agk_bonequats2[30];

highp vec3 transformDQ( highp vec3 p, highp vec4 q1, highp vec4 q2 )
{
    p += 2.0 * cross( q1.xyz, cross(q1.xyz, p) + q1.w*p );
    p += 2.0 * (q1.w*q2.xyz - q2.w*q1.xyz + cross(q1.xyz,q2.xyz));
    return p;
}

void main()
{ 
    uvVarying = uv * uvBounds0.xy + uvBounds0.zw;
    highp vec4 q1 = agk_bonequats1[ int(boneindices.x) ] * boneweights.x;
    q1 += agk_bonequats1[ int(boneindices.y) ] * boneweights.y;
    q1 += agk_bonequats1[ int(boneindices.z) ] * boneweights.z;
    q1 += agk_bonequats1[ int(boneindices.w) ] * boneweights.w;
    highp vec4 q2 = agk_bonequats2[ int(boneindices.x) ] * boneweights.x;
    q2 += agk_bonequats2[ int(boneindices.y) ] * boneweights.y;
    q2 += agk_bonequats2[ int(boneindices.z) ] * boneweights.z;
    q2 += agk_bonequats2[ int(boneindices.w) ] * boneweights.w;
    highp float len = 1.0/length(q1);
    q1 *= len;
    q2 = (q2 - q1*dot(q1,q2)) * len;
    highp vec4 pos = vec4( transformDQ(position,q1,q2), 1.0 );
    gl_Position = agk_ViewProj * pos;

    normalVarying = normal + 2.0*cross( q1.xyz, cross(q1.xyz,normal) + q1.w*normal );
    posVarying = pos.xyz;
    lightVarying = GetVSLighting( normalVarying, posVarying );
}

I hope it helps.

Share your knowledge. It\'s a way to achieve immortality. (Tenzin Gyatso)
Pixie-Particle-Engine

Back to top

Profile PM Email

hoyoyo80

7

Years of Service

User Offline

Joined: 11th May 2016

Location:

Posted: 18th Feb 2017 07:09

Link

Really hope to get a 3d shadow system(free or paid)

Back to top

Profile PM

MikeMax

AGK Academic Backer

12

Years of Service

User Offline

Joined: 13th Dec 2011

Location: Paris

Posted: 18th Feb 2017 10:38

Link

Quote: "Really hope to get a 3d shadow system(free or paid)
"

Yes, it's a real need for me too !

The janbo's 3D shadow shader is a great good start but unstable and unusable actually in a "real" 3D environment for the moment.

And we need multiple pass shaders system to combine multiple shaders only when necessary (or an AppGameKit system to compile this "all-in-one shader" at project compilation according to object/mesh options (Bones animation + fog + 3D Shadow casting + normal/spec mapping + lightmapping... it's just an example of a real need !) .

--------------------------------
Join us on dedicated AppGameKit WeeKChat :

https://week.chat/room/AppGameKit

Back to top

Profile PM Email

hoyoyo80

7

Years of Service

User Offline

Joined: 11th May 2016

Location:

Posted: 19th Feb 2017 04:56

Link

+1. I dont mind if the community is selling plugin those features. But if it is support officially, agk features advertisement will look great

Back to top

Profile PM

haliop_New

User Banned

Posted: 19th Feb 2017 17:00

Link

yeah I think AppGameKit should at least include the default tested on all platform shaders.
so we get a head start and adjust and create extras but the default is a must.

Back to top

Profile

GolWofael

8

Years of Service

User Offline

Joined: 15th Mar 2016

Location:

Posted: 1st Mar 2017 09:10

Link

@Ched80
Thanks for your DOF shader ....
But could you put a small 3d example please ... sorry .. I'm very noob

Back to top

Profile PM

Ched80

13

Years of Service

User Offline

Joined: 18th Sep 2010

Location: Peterborough, UK

Posted: 3rd Mar 2017 06:36

Link

@GolWofael the shader is really a simple tilt shift shader applying blur to the full screen, but increasing the magnitude of the blur the further away from the middle of the screen (in the y axis) the pixel is.

It's not a true DOF shader.

Back to top

Profile PM Email

blink0k

Moderator

11

Years of Service

User Offline

Joined: 22nd Feb 2013

Location: the land of oz

Posted: 7th Mar 2017 04:51

Link

i just noticed this in the documentation;
https://www.appgamekit.com/documentation/guides/13_shaders.htm

Back to top

Profile PM

Jack

19

Years of Service

User Offline

Joined: 4th Oct 2004

Location: [Germany]

Posted: 24th Mar 2017 06:55

Link

2d realistic snow shader with example code:
(shader will be created by the code)

// Project: AGKSnow 
// Created: 24.03.2017

// show all errors
SetErrorMode(2)

// set window properties
SetWindowTitle( "AGKSnow" )
SetWindowSize( 1024, 768, 0 )

// set display properties
SetVirtualResolution( 1024, 768 )
SetOrientationAllowed( 1, 1, 1, 1 )

UseNewDefaultFonts( 1 ) // since version 2.0.22 we can use nicer default fonts
SetVSync(1)

CreateSnowShader()

shader = LoadSpriteShader("snow.ps")

// set shader to simple
SetShaderConstantByName(shader,"Settings",20.0,0.5,0.3,0.6) // LAYERS, DEPTH, WIDTH, SPEED

img = CreateImageColor(255,255,255,255)
spr=CreateSprite(img)
SetSpriteShader(spr,shader)
setspritesize(spr,1024,768)
do
	
	Print( ScreenFPS() )
	print(" SNOW shader Demo AGK Tier 1 - press 1-5 to change effect")
	
	
	
			if GetRawKeyPressed(49)=1 then SetShaderConstantByName(shader,"Settings",20.0,0.5,0.3,0.6) // simple
			if GetRawKeyPressed(50)=1 then SetShaderConstantByName(shader,"Settings",50.0,0.5,0.3,0.6) // simple, more layers
			if GetRawKeyPressed(51)=1 then SetShaderConstantByName(shader,"Settings",200.0,0.1,0.8,1.5) // heavy
			if GetRawKeyPressed(52)=1 then SetShaderConstantByName(shader,"Settings",20.0,0.5,0.3,2.6) // fast
			if GetRawKeyPressed(53)=1 then SetShaderConstantByName(shader,"Settings",200.0,0.5,0.3,0.2) // slow

Sync()
loop

function CreateSnowShader()

file = OpenToWrite("snow.ps")
	WriteLine(file,"varying mediump vec2 uvVarying;")
	WriteLine(file,"uniform float agk_time;")
	WriteLine(file,"uniform vec4 Settings;")
	WriteLine(file,"void main(  )")
	WriteLine(file,"{")
	WriteLine(file,"const mat3 p = mat3(13.323122,23.5112,21.71123,21.1212,28.7312,11.9312,21.8112,14.7212,61.3934);")
	WriteLine(file,"vec2 uv = uvVarying;")
	WriteLine(file,"vec3 acc = vec3(0.0);")
	WriteLine(file,"float dof = 5.*sin(agk_time*.1);")
	WriteLine(file,"for (int i=0;i<int(Settings.r);i++) {")
	WriteLine(file,"float fi = float(i);")
	WriteLine(file,"vec2 q = uv*(1.+fi*Settings.g);")
	WriteLine(file,"q += vec2(q.y*(Settings.b*mod(fi*7.238917,1.)-Settings.b*.5),Settings.a*-agk_time/(1.+fi*Settings.g*.03));")
	WriteLine(file,"vec3 n = vec3(floor(q),31.189+fi);")
	WriteLine(file,"vec3 m = floor(n)*.00001 + fract(n);")
	WriteLine(file,"vec3 mp = (31415.9+m)/fract(p*m);")
	WriteLine(file,"vec3 r = fract(mp);")
	WriteLine(file,"vec2 s = abs(mod(q,1.)-.5+.9*r.xy-.45);")
	WriteLine(file,"s += .01*abs(2.*fract(10.*q.yx)-1.);")
	WriteLine(file,"float d = .6*max(s.x-s.y,s.x+s.y)+max(s.x,s.y)-.01;")
	WriteLine(file,"float edge = .005+.05*min(.5*abs(fi-5.-dof),1.);")
	WriteLine(file,"acc += vec3(smoothstep(edge,-edge,d)*(r.x/(1.+.02*fi*Settings.g)));")
	WriteLine(file,"}")
	WriteLine(file,"gl_FragColor = vec4(vec3(acc),1.0);")
	WriteLine(file,"}")
CloseFile(file)

endfunction

+ Code Snippet



// Project: AGKSnow 
// Created: 24.03.2017

// show all errors
SetErrorMode(2)

// set window properties
SetWindowTitle( "AGKSnow" )
SetWindowSize( 1024, 768, 0 )

// set display properties
SetVirtualResolution( 1024, 768 )
SetOrientationAllowed( 1, 1, 1, 1 )

UseNewDefaultFonts( 1 ) // since version 2.0.22 we can use nicer default fonts
SetVSync(1)

CreateSnowShader()



shader = LoadSpriteShader("snow.ps")

// set shader to simple
SetShaderConstantByName(shader,"Settings",20.0,0.5,0.3,0.6) // LAYERS, DEPTH, WIDTH, SPEED

img = CreateImageColor(255,255,255,255)
spr=CreateSprite(img)
SetSpriteShader(spr,shader)
setspritesize(spr,1024,768)
do
	
	Print( ScreenFPS() )
	print(" SNOW shader Demo AGK Tier 1 - press 1-5 to change effect")
	
	
	
			if GetRawKeyPressed(49)=1 then SetShaderConstantByName(shader,"Settings",20.0,0.5,0.3,0.6) // simple
			if GetRawKeyPressed(50)=1 then SetShaderConstantByName(shader,"Settings",50.0,0.5,0.3,0.6) // simple, more layers
			if GetRawKeyPressed(51)=1 then SetShaderConstantByName(shader,"Settings",200.0,0.1,0.8,1.5) // heavy
			if GetRawKeyPressed(52)=1 then SetShaderConstantByName(shader,"Settings",20.0,0.5,0.3,2.6) // fast
			if GetRawKeyPressed(53)=1 then SetShaderConstantByName(shader,"Settings",200.0,0.5,0.3,0.2) // slow


    
    Sync()
loop


function CreateSnowShader()
 


file = OpenToWrite("snow.ps")
	WriteLine(file,"varying mediump vec2 uvVarying;")
	WriteLine(file,"uniform float agk_time;")
	WriteLine(file,"uniform vec4 Settings;")
	WriteLine(file,"void main(  )")
	WriteLine(file,"{")
	WriteLine(file,"const mat3 p = mat3(13.323122,23.5112,21.71123,21.1212,28.7312,11.9312,21.8112,14.7212,61.3934);")
	WriteLine(file,"vec2 uv = uvVarying;")
	WriteLine(file,"vec3 acc = vec3(0.0);")
	WriteLine(file,"float dof = 5.*sin(agk_time*.1);")
	WriteLine(file,"for (int i=0;i<int(Settings.r);i++) {")
	WriteLine(file,"float fi = float(i);")
	WriteLine(file,"vec2 q = uv*(1.+fi*Settings.g);")
	WriteLine(file,"q += vec2(q.y*(Settings.b*mod(fi*7.238917,1.)-Settings.b*.5),Settings.a*-agk_time/(1.+fi*Settings.g*.03));")
	WriteLine(file,"vec3 n = vec3(floor(q),31.189+fi);")
	WriteLine(file,"vec3 m = floor(n)*.00001 + fract(n);")
	WriteLine(file,"vec3 mp = (31415.9+m)/fract(p*m);")
	WriteLine(file,"vec3 r = fract(mp);")
	WriteLine(file,"vec2 s = abs(mod(q,1.)-.5+.9*r.xy-.45);")
	WriteLine(file,"s += .01*abs(2.*fract(10.*q.yx)-1.);")
	WriteLine(file,"float d = .6*max(s.x-s.y,s.x+s.y)+max(s.x,s.y)-.01;")
	WriteLine(file,"float edge = .005+.05*min(.5*abs(fi-5.-dof),1.);")
	WriteLine(file,"acc += vec3(smoothstep(edge,-edge,d)*(r.x/(1.+.02*fi*Settings.g)));")
	WriteLine(file,"}")
	WriteLine(file,"gl_FragColor = vec4(vec3(acc),1.0);")
	WriteLine(file,"}")
CloseFile(file)

endfunction

[/url]

Back to top

Profile PM Email Website

PSY

Developer

7

Years of Service

User Offline

Joined: 3rd Jul 2016

Location: Laniakea Supercluster

Posted: 24th Mar 2017 15:15

Link

Woah,

nice snow shader.

Man, I really need to learn how these shaders work

PSY LABS Games
Coders don't die, they just gosub without return

Back to top

Profile PM Website

Richard_6

7

Years of Service

User Offline

Joined: 3rd Feb 2017

Location:

Posted: 25th Mar 2017 04:56

Link

Really niice!!

Back to top

Profile PM

SpecTre

Developer

21

Years of Service

User Offline

Joined: 24th Feb 2003

Location: UK

Posted: 29th Mar 2017 17:11

Link

Anyone wanting to learn shaders, I have found a great online book which has links to editors etc:

http://thebookofshaders.com/

Might be useful

The Amiga and Amos were great!

Back to top

Profile PM Email Website

Jack

19

Years of Service

User Offline

Joined: 4th Oct 2004

Location: [Germany]

Posted: 1st Apr 2017 22:32 Edited at: 1st Apr 2017 22:40

Link

Text string, Image Buffer, Sprite Effect:

With different settings in the shader, you can get a lot of variations

// This one builds a starfield:
const float maskStr = 0.0125; // 0.0 - 1.0
const float vignetteStr = 0.0002; // 0.0 - 1.0
const float crtBend = 20.8;
const float crtOverscan = 0.21; // 0.0 - 1.0

Image:

Download:
https://forum.thegamecreators.com/attachment/79074

[/url]

Attachments

Login to view attachments

Back to top

Profile PM Email Website

Jack

19

Years of Service

User Offline

Joined: 4th Oct 2004

Location: [Germany]

Posted: 1st Apr 2017 23:51 Edited at: 1st Apr 2017 23:52

Link

CRT Shader

Can also be modified in the .ps shader...

Image:

Download:
https://forum.thegamecreators.com/attachment/79076

[/url]

Attachments

Login to view attachments

Back to top

Profile PM Email Website

Jack

19

Years of Service

User Offline

Joined: 4th Oct 2004

Location: [Germany]

Posted: 5th Apr 2017 07:14 Edited at: 5th Apr 2017 07:17

Link

Lensflare

Position of the sun can be set in screen coordinates.

Image:

Download:
https://forum.thegamecreators.com/attachment/79115

Can become handy sometimes.

[/url]

Attachments

Login to view attachments

Back to top

Profile PM Email Website

baxslash

Valued Member

Bronze Codemaster

17

Years of Service

User Offline

Joined: 26th Dec 2006

Location: Duffield

Posted: 5th Apr 2017 12:14

Link

Looks nice Jack!

Using AppGameKit V2 Tier 1

Back to top

Profile PM Email

fubarpk

Retired Moderator

19

Years of Service

User Offline

Joined: 11th Jan 2005

Playing: AGK is my friend

Posted: 26th Apr 2017 02:28 Edited at: 12th Apr 2018 22:19

Link

Excellent Shaders Jack

And I believe baxslash 2d for the additive code

I modified the Lensflare and snow shaders by jack and added an additive blend of the background image rather than just use the noise this created
a background that could have a sun scroll down in the background adding a colour blend to the background sprite. Great for what I wanted a sunset
in 2d without the use of a quad image. I didn't change all that much to baxslashes awesome lensflare but now it does what I wanted and I have
commented the changes.

The summer.png that I use can be any 2d background image

The following allows you to switch between sun(lensflare) or snow

// Project: AGK_Lensflare_Shader 
// Created: 05.04.2017

// show all errors
SetErrorMode(2)
#constant xMax=1024
#constant yMax=600
//#constant snowImg=1002:rem		The snow image used with the snowShader sprite
//#constant snowSpr=1002:rem		The sprite used for the snow snowShader image
#constant seasonBg=999:rem 		the season background sprite
#constant seasonAlpha=200:rem	Sets the alpha level for the season image		
#constant spring=991:rem		Spring image	
#constant snowShader=1:rem		The sprite snowShader used for snow 
#constant sunLense=2:rem		The sprite snowShader used for sun 	
// set window properties
SetWindowTitle( "AGK_Lensflare_Shader" )
SetWindowSize( xMax, yMax, 0 )

// set display properties
SetVirtualResolution( xMax, yMax )
SetOrientationAllowed( 1, 1, 1, 1 )
UseNewDefaultFonts( 1 ) // since version 2.0.22 we can use nicer default fonts
SetVSync(1)

//the snow to be used for winter
CreateSnowShader()
LoadSpriteShader(snowShader,"snow.ps")
noise = LoadImage("Summer.png"):rem changed the noise to my background image
SetShaderConstantByName(snowShader,"Settings",50.0,0.1,0.8,.5) // LAYERS, DEPTH, WIDTH, SPEED
//CreateImageColor(snowImg,255,255,255,255)
CreateSprite(seasonBg,noise)
SetSpriteShader(seasonBg,snowShader)
setspritesize(seasonBg,xMax,yMax)

//summer
CreateLenseFlare()
LoadSpriteShader(sunLense,"lensflare.ps")
//SetSpriteShader(seasonBg,sunLense)
SetShaderConstantByName(sunLense,"Position",1024.0,600.0,0.0,0.0)

ResetTimer()
do
	print(" Season shader Demo press 1 for sun 2 for snow")  
    X# = sin(timer())*xMax
    Y# = sin(timer())*yMax
    if GetRawKeyPressed(49)=1 then SetSpriteShader(seasonBg,sunLense) 
	if GetRawKeyPressed(50)=1 then SetSpriteShader(seasonBg,snowShader) 
	SetShaderConstantByName(sunLense,"Position",X#,Y#,0.0,0.0)
    Print( "FPS: "+str(ScreenFPS())+"   Lensflare Position X: "+str(X#)+" Y: "+str(Y#) )

Sync()
loop

+ Code Snippet

// Project: AGK_Lensflare_Shader 
// Created: 05.04.2017

// show all errors
SetErrorMode(2)
#constant xMax=1024
#constant yMax=600
//#constant snowImg=1002:rem		The snow image used with the snowShader sprite
//#constant snowSpr=1002:rem		The sprite used for the snow snowShader image
#constant seasonBg=999:rem 		the season background sprite
#constant seasonAlpha=200:rem	Sets the alpha level for the season image		
#constant spring=991:rem		Spring image	
#constant snowShader=1:rem		The sprite snowShader used for snow 
#constant sunLense=2:rem		The sprite snowShader used for sun 	
// set window properties
SetWindowTitle( "AGK_Lensflare_Shader" )
SetWindowSize( xMax, yMax, 0 )

// set display properties
SetVirtualResolution( xMax, yMax )
SetOrientationAllowed( 1, 1, 1, 1 )
UseNewDefaultFonts( 1 ) // since version 2.0.22 we can use nicer default fonts
SetVSync(1)


//the snow to be used for winter
CreateSnowShader()
LoadSpriteShader(snowShader,"snow.ps")
noise = LoadImage("Summer.png"):rem changed the noise to my background image
SetShaderConstantByName(snowShader,"Settings",50.0,0.1,0.8,.5) // LAYERS, DEPTH, WIDTH, SPEED
//CreateImageColor(snowImg,255,255,255,255)
CreateSprite(seasonBg,noise)
SetSpriteShader(seasonBg,snowShader)
setspritesize(seasonBg,xMax,yMax)

//summer
CreateLenseFlare()
LoadSpriteShader(sunLense,"lensflare.ps")
//SetSpriteShader(seasonBg,sunLense)
SetShaderConstantByName(sunLense,"Position",1024.0,600.0,0.0,0.0)

ResetTimer()
do
	print(" Season shader Demo press 1 for sun 2 for snow")  
    X# = sin(timer())*xMax
    Y# = sin(timer())*yMax
    if GetRawKeyPressed(49)=1 then SetSpriteShader(seasonBg,sunLense) 
	if GetRawKeyPressed(50)=1 then SetSpriteShader(seasonBg,snowShader) 
	SetShaderConstantByName(sunLense,"Position",X#,Y#,0.0,0.0)
    Print( "FPS: "+str(ScreenFPS())+"   Lensflare Position X: "+str(X#)+" Y: "+str(Y#) )

    Sync()
loop

function CreateSnowShader()
file = OpenToWrite("snow.ps")
    WriteLine(file,"varying mediump vec2 uvVarying;")
    WriteLine(file,"uniform float agk_time;")
    WriteLine(file,"uniform vec4 Settings;")
    WriteLine(file,"uniform sampler2D texture0;")   //Added this for colouring
    WriteLine(file,"varying vec4 colorVarying;//")  //Added this colour varying variable so as it will blend with background
    WriteLine(file,"void main(  )")
    WriteLine(file,"{")
    WriteLine(file,"const mat3 p = mat3(13.323122,23.5112,21.71123,21.1212,28.7312,11.9312,21.8112,14.7212,61.3934);")
    WriteLine(file,"vec2 uv = uvVarying;")
    WriteLine(file,"vec3 acc = vec3(0.0);")
    WriteLine(file,"float dof = 5.*sin(agk_time*.1);")
    WriteLine(file,"for (int i=0;i<int(Settings.r);i++) {")
    WriteLine(file,"float fi = float(i);")
    WriteLine(file,"vec2 q = uv*(1.+fi*Settings.g);")
    WriteLine(file,"q += vec2(q.y*(Settings.b*mod(fi*7.238917,1.)-Settings.b*.5),Settings.a*-agk_time/(1.+fi*Settings.g*.03));")
    WriteLine(file,"vec3 n = vec3(floor(q),31.189+fi);")
    WriteLine(file,"vec3 m = floor(n)*.00001 + fract(n);")
    WriteLine(file,"vec3 mp = (31415.9+m)/fract(p*m);")
    WriteLine(file,"vec3 r = fract(mp);")
    WriteLine(file,"vec2 s = abs(mod(q,1.)-.5+.9*r.xy-.45);")
    WriteLine(file,"s += .01*abs(2.*fract(10.*q.yx)-1.);")
    WriteLine(file,"float d = .6*max(s.x-s.y,s.x+s.y)+max(s.x,s.y)-.01;")
    WriteLine(file,"float edge = .005+.05*min(.5*abs(fi-5.-dof),1.);")
    WriteLine(file,"acc += vec3(smoothstep(edge,-edge,d)*(r.x/(.25+.02*fi*Settings.g)));")
    WriteLine(file,"}")
    WriteLine(file,"gl_FragColor = vec4(vec3(acc),1.0);")
    //added an additive colour blend 
    WriteLine(file,"gl_FragColor = texture2D(texture0, uvVarying) + gl_FragColor;")
    //change for a subtractive colour blend 
    //WriteLine(file,"gl_FragColor = texture2D(texture0, uvVarying) - gl_FragColor;")
    //change for a multiply color blend
    //WriteLine(file,"gl_FragColor = texture2D(texture0, uvVarying) * gl_FragColor;")
    WriteLine(file,"}")
CloseFile(file)
 
endfunction
function CreateLenseFlare()
file = OpenToWrite("lensflare.ps")
    WriteLine(file,"uniform float agk_time;")
    WriteLine(file,"uniform sampler2D texture0;") //added this for colouring
    WriteLine(file,"varying mediump vec2 uvVarying;")
    WriteLine(file,"uniform vec2 agk_resolution;")
    WriteLine(file,"uniform mediump vec2 Position;") 
    WriteLine(file,"varying vec4 colorVarying;//")  //Added this colour varying variable so as it will blend with background
    WriteLine(file,"float noise(float t)")
    WriteLine(file,"{")
    WriteLine(file,"return texture2D(texture0,vec2(t, 0.0) / agk_resolution.xy).x;")
    WriteLine(file,"}")
    WriteLine(file,"float noise(vec2 t)")
    WriteLine(file,"{")
    WriteLine(file,"return texture2D(texture0,(t + vec2(agk_time)) / agk_resolution.xy).x;")
    WriteLine(file,"}")
    WriteLine(file,"vec3 lensflare(vec2 uv,vec2 pos)")
    WriteLine(file,"{")
    WriteLine(file,"vec2 main = uv-pos;")
    WriteLine(file,"vec2 uvd = uv*(length(uv));")
    WriteLine(file,"float ang = atan(main.y, main.x);")
    WriteLine(file,"float dist=length(main); dist = pow(dist,.1);")
    WriteLine(file,"float n = noise(vec2((ang-agk_time/9.0)*16.0,dist*32.0));")
    WriteLine(file,"float f0 = 1.0/(length(uv-pos)*16.0+1.0);")
    WriteLine(file,"f0 = f0+f0*(sin((ang+agk_time/18.0 + noise(abs(ang)+n/2.0)*2.0)*12.0)*.1+dist*.1+.8);")
    WriteLine(file,"float f2 = max(1.0/(1.0+32.0*pow(length(uvd+0.8*pos),2.0)),.0)*00.25;")
    WriteLine(file,"float f22 = max(1.0/(1.0+32.0*pow(length(uvd+0.85*pos),2.0)),.0)*00.23;")
    WriteLine(file,"float f23 = max(1.0/(1.0+32.0*pow(length(uvd+0.9*pos),2.0)),.0)*00.21;")
    WriteLine(file,"vec2 uvx = mix(uv,uvd,-0.5);")
    WriteLine(file,"float f4 = max(0.01-pow(length(uvx+0.4*pos),2.4),.0)*6.0;")
    WriteLine(file,"float f42 = max(0.01-pow(length(uvx+0.45*pos),2.4),.0)*5.0;")
    WriteLine(file,"float f43 = max(0.01-pow(length(uvx+0.5*pos),2.4),.0)*3.0;")
    WriteLine(file,"uvx = mix(uv,uvd,-.2);")
    WriteLine(file,"float f5 = max(0.01-pow(length(uvx+0.2*pos),5.5),.0)*2.0;")
    WriteLine(file,"float f52 = max(0.01-pow(length(uvx+0.4*pos),5.5),.0)*2.0;")
    WriteLine(file,"float f53 = max(0.01-pow(length(uvx+0.6*pos),5.5),.0)*2.0;")
    WriteLine(file,"uvx = mix(uv,uvd,-0.5);")
    WriteLine(file,"float f6 = max(0.01-pow(length(uvx-0.3*pos),1.6),.0)*6.0;")
    WriteLine(file,"float f62 = max(0.01-pow(length(uvx-0.325*pos),1.6),.0)*3.0;")
    WriteLine(file,"float f63 = max(0.01-pow(length(uvx-0.35*pos),1.6),.0)*5.0;")
    WriteLine(file,"vec3 c = vec3(.0);")
    WriteLine(file,"c.r+=f2+f4+f5+f6; c.g+=f22+f42+f52+f62; c.b+=f23+f43+f53+f63;")
    WriteLine(file,"c+=vec3(f0);")
    WriteLine(file,"return c;")
    WriteLine(file,"}")
    WriteLine(file,"vec3 cc(vec3 color, float factor,float factor2) // color modifier")
    WriteLine(file,"{")
    WriteLine(file,"float w = color.x+color.y+color.z;")
    WriteLine(file,"return mix(color,vec3(w)*factor,w*factor2);")
    WriteLine(file,"}")  
    WriteLine(file,"void main( )")
    WriteLine(file,"{")
    WriteLine(file,"vec2 uv = uvVarying*2.0;")
    WriteLine(file,"uv.x = uv.x - 1.0;")
    WriteLine(file,"uv.y = uv.y - 1.0;")
    WriteLine(file,"vec3 color = vec3(1.4,1.2,1.0)*lensflare(uv,(vec2((Position.xy/agk_resolution)*2.0)-1.0));")
    WriteLine(file,"color = cc(color,.5,.1);")
    WriteLine(file,"gl_FragColor = vec4(color,2.0);")
    //added an additive colour blend 
    WriteLine(file,"gl_FragColor = texture2D(texture0, uvVarying) + gl_FragColor;")
    //change for a subtractive colour blend 
    //WriteLine(file,"gl_FragColor = texture2D(texture0, uvVarying) - gl_FragColor;")
    //change for a multiply color blend
    //WriteLine(file,"gl_FragColor = texture2D(texture0, uvVarying) * gl_FragColor;")
    
    WriteLine(file,"}")
CloseFile(file)
endfunction

fubar

Back to top

Profile PM Email Website

fubarpk

Retired Moderator

19

Years of Service

User Offline

Joined: 11th Jan 2005

Playing: AGK is my friend

Posted: 22nd May 2017 10:32 Edited at: 12th Apr 2018 22:20

Link

Ive been playing around with Blendmans texture blending code as I was hoping with modifications the gl_FragColor could be used to output a morphed texture

+ Code Snippet

gl_FragColor = (texture2D(texture0, uvVarying) + texture2D(texture1, uvVarying))/2.0;

I believe averages the color between texture0 and texture1
so I end up with an image 50percent texture0 and 50 percent texture1.(correct me if I'm wrong but that's what I think I'm seeing)
my question is how could I add and averaging factor in the following so that it might morph 10percent if chosen 20percent or even 100 percent and totally replace
with the second texture

test code

+ Code Snippet

SetWindowSize( 1024, 768, 0 )
SetVirtualResolution( 1024, 768 )
// create a sphere to see the texture
CreateObjectSphere(1,20,40,60)
//CreateObjectplane(1,1024,768)

// position and orientate the camera
SetCameraPosition(1,0,100,-200)
SetCameraLookAt(1,0,0,0,0)
SetGenerateMipmaps(1)

LoadImage(1,"texture.jpg") // no need for alpha with this one
LoadImage(2,"texture2.png") // with alpha ;)

CreatePointLight(1,-5,5,5,500,200,200,200)

// initial rotation values
angle_x# = 0.0

// main loop
SetObjectRotation(1,-60,-60,0.0)
SetObjectScale(1,4,2,2)
createShader()
LoadShader(3, "vertex.vs", "fragment.ps")
SetObjectShader(1,3)
SetObjectImage(1,1,0)
SetObjectImage(1,2,1)

do

	angle_x# = angle_x# + 1 
	SetObjectRotation(1,0, angle_x#,0.0)
	sync()

loop

shaders

+ Code Snippet


function createShader()
file = OpenToWrite("vertex.vs")
WriteLine(file,"attribute vec3 position;")
WriteLine(file,"attribute vec2 uv;")
WriteLine(file,"varying vec2 uvVarying;")
WriteLine(file,"uniform vec4 uvBounds0;")
WriteLine(file,"uniform mat4 agk_World;")
WriteLine(file,"uniform mat4 agk_ViewProj;")
WriteLine(file,"void main()")
WriteLine(file,"{")
WriteLine(file,"vec4 pos = agk_World * vec4(position,1);")
WriteLine(file,"gl_Position = agk_ViewProj * pos;")
WriteLine(file,"uvVarying = uv * uvBounds0.xy + uvBounds0.zw;")
WriteLine(file,"}")
CloseFile(file)

file = OpenToWrite("fragment.ps")
WriteLine(file,"uniform sampler2D texture0;")
WriteLine(file,"uniform sampler2D texture1;")
WriteLine(file,"varying vec2 uvVarying;")
WriteLine(file,"void main()")
WriteLine(file,"{")
WriteLine(file,"gl_FragColor = (texture2D(texture0, uvVarying) + texture2D(texture1, uvVarying))/2.0;")
WriteLine(file,"}")
CloseFile(file)
endfunction

fubar

Back to top

Profile PM Email Website

Mobiius

Valued Member

21

Years of Service

User Offline

Joined: 27th Feb 2003

Location: The Cold North

Posted: 22nd May 2017 11:28

Link

you could alter this line

Quote: "WriteLine(file,"gl_FragColor = (texture2D(texture0, uvVarying) + texture2D(texture1, uvVarying))/2.0;")"

This is where it's sets the 50% blend between each pixel colour.

Signature removed by mod because it's larger than 600x120... please resize and try again.

Back to top

Profile PM Email Website

fubarpk

Retired Moderator

19

Years of Service

User Offline

Joined: 11th Jan 2005

Playing: AGK is my friend

Posted: 22nd May 2017 12:00 Edited at: 12th Apr 2018 22:21

Link

ive changed the line

Quote: "Quote: "WriteLine(file,"gl_FragColor = (texture2D(texture0, uvVarying) + texture2D(texture1, uvVarying))/2.0;")""

to
gl_FragColor = (texture2D(texture0, uvVarying) + (2.0*.5*texture2D(texture1, uvVarying)))/2.0;

where .5 is a percentage that seemed to work

the main problem I was having was setting the variable from the program but I fixed that thanks

with the following which converts one texture to another gradually on an object

SetWindowSize( 1024, 768, 0 )
SetVirtualResolution( 1024, 768 )
// create a sphere to see the texture
CreateObjectSphere(1,20,40,60)
//CreateObjectplane(1,1024,768)

// position and orientate the camera
SetCameraPosition(1,0,100,-200)
SetCameraLookAt(1,0,0,0,0)
SetGenerateMipmaps(1)

LoadImage(1,"texture.jpg") // no need for alpha with this one
LoadImage(2,"texture2.png") // with alpha ;)

CreatePointLight(1,-5,5,5,500,200,200,200)

// initial rotation values
angle_x# = 0.0

// main loop
SetObjectRotation(1,-60,-60,0.0)
SetObjectScale(1,4,2,2)
createShader()
LoadShader(3, "vertex.vs", "fragment.ps")
SetObjectShader(1,3)
SetObjectImage(1,1,0)
SetObjectImage(1,2,1)

perc#=.1:time#=Timer()
do
	angle_x# = angle_x# + 1 
	SetShaderConstantByName(3,"Percentage",perc#,0.0,0.0,0.0)
	SetObjectRotation(1,0, angle_x#,0.0)
	if perc#<=1 and time#>.1 
		perc#=perc#+.01
		ResetTimer()
	endif
	SetSpriteImage(1,2)
	time#=Timer()
	sync()
loop

function createShader()
file = OpenToWrite("vertex.vs")
WriteLine(file,"attribute vec3 position;")
WriteLine(file,"attribute vec2 uv;")
WriteLine(file,"varying vec2 uvVarying;")
WriteLine(file,"uniform vec4 uvBounds0;")
WriteLine(file,"uniform mat4 agk_World;")
WriteLine(file,"uniform mat4 agk_ViewProj;")
WriteLine(file,"void main()")
WriteLine(file,"{")
WriteLine(file,"vec4 pos = agk_World * vec4(position,1);")
WriteLine(file,"gl_Position = agk_ViewProj * pos;")
WriteLine(file,"uvVarying = uv * uvBounds0.xy + uvBounds0.zw;")
WriteLine(file,"}")
CloseFile(file)

file = OpenToWrite("fragment.ps")
WriteLine(file,"uniform sampler2D texture0;")
WriteLine(file,"uniform sampler2D texture1;")
WriteLine(file,"uniform float Percentage;")
WriteLine(file,"varying vec2 uvVarying;")
WriteLine(file,"void main()")
WriteLine(file,"{")
WriteLine(file,"gl_FragColor = (texture2D(texture0, uvVarying) + (4.0*Percentage*texture2D(texture1, uvVarying)))/2.0;")
//WriteLine(file,"gl_FragColor = gl_FragColor+(10.0/1.0*texture2D(texture1, uvVarying));")
WriteLine(file,"}")
CloseFile(file)
endfunction

+ Code Snippet

SetWindowSize( 1024, 768, 0 )
SetVirtualResolution( 1024, 768 )
// create a sphere to see the texture
CreateObjectSphere(1,20,40,60)
//CreateObjectplane(1,1024,768)

// position and orientate the camera
SetCameraPosition(1,0,100,-200)
SetCameraLookAt(1,0,0,0,0)
SetGenerateMipmaps(1)

LoadImage(1,"texture.jpg") // no need for alpha with this one
LoadImage(2,"texture2.png") // with alpha ;)

CreatePointLight(1,-5,5,5,500,200,200,200)

// initial rotation values
angle_x# = 0.0

// main loop
SetObjectRotation(1,-60,-60,0.0)
SetObjectScale(1,4,2,2)
createShader()
LoadShader(3, "vertex.vs", "fragment.ps")
SetObjectShader(1,3)
SetObjectImage(1,1,0)
SetObjectImage(1,2,1)

perc#=.1:time#=Timer()
do
	angle_x# = angle_x# + 1 
	SetShaderConstantByName(3,"Percentage",perc#,0.0,0.0,0.0)
	SetObjectRotation(1,0, angle_x#,0.0)
	if perc#<=1 and time#>.1 
		perc#=perc#+.01
		ResetTimer()
	endif
	SetSpriteImage(1,2)
	time#=Timer()
	sync()
loop

function createShader()
file = OpenToWrite("vertex.vs")
WriteLine(file,"attribute vec3 position;")
WriteLine(file,"attribute vec2 uv;")
WriteLine(file,"varying vec2 uvVarying;")
WriteLine(file,"uniform vec4 uvBounds0;")
WriteLine(file,"uniform mat4 agk_World;")
WriteLine(file,"uniform mat4 agk_ViewProj;")
WriteLine(file,"void main()")
WriteLine(file,"{")
WriteLine(file,"vec4 pos = agk_World * vec4(position,1);")
WriteLine(file,"gl_Position = agk_ViewProj * pos;")
WriteLine(file,"uvVarying = uv * uvBounds0.xy + uvBounds0.zw;")
WriteLine(file,"}")
CloseFile(file)

file = OpenToWrite("fragment.ps")
WriteLine(file,"uniform sampler2D texture0;")
WriteLine(file,"uniform sampler2D texture1;")
WriteLine(file,"uniform float Percentage;")
WriteLine(file,"varying vec2 uvVarying;")
WriteLine(file,"void main()")
WriteLine(file,"{")
WriteLine(file,"gl_FragColor = (texture2D(texture0, uvVarying) + (4.0*Percentage*texture2D(texture1, uvVarying)))/2.0;")
//WriteLine(file,"gl_FragColor = gl_FragColor+(10.0/1.0*texture2D(texture1, uvVarying));")
WriteLine(file,"}")
CloseFile(file)
endfunction

fubar

Back to top

Profile PM Email Website

Mobiius

Valued Member

21

Years of Service

User Offline

Joined: 27th Feb 2003

Location: The Cold North

Posted: 22nd May 2017 12:42

Link

Why I'm sure you don't need to multiply it by 2, then divide by 2 at the end?

+ Code Snippet

gl_FragColor = ( texture2D( texture0, uvVarying ) + ( .5 * texture2D( texture1, uvVarying ) ) )

Signature removed by mod because it's larger than 600x120... please resize and try again.

Back to top

Profile PM Email Website

janbo

15

Years of Service

User Offline

Joined: 10th Nov 2008

Location: Germany

Posted: 22nd May 2017 12:58 Edited at: 15th Jul 2017 01:31

Link

There is much going on with VR right now and I through I released my "Lens Correction shaders/Tiny VR Lib" month ago...I realized, I did not

So here it is:

Demo
You can use the magnet of the card board to switch the width of the lenses center.
VR Test v2

Image

Using AGKv2 Tier1

Attachments

Login to view attachments

Back to top

Profile PM Email Website

Stab in the Dark software

Valued Member

21

Years of Service

User Offline

Joined: 12th Dec 2002

Playing: Badges, I don't need no stinkin badges

Posted: 22nd May 2017 22:44 Edited at: 22nd May 2017 23:31

Link

janbo

Thanks for your contribution. I have a question on your VR shader.
How would I adjust it so it would completely fill the screen top to bottom and left to right
in it's half of the screen?

The coffee is lovely dark and deep,and I have code to write before I sleep.

Back to top

Profile PM Email Website

MikeMax

AGK Academic Backer

12

Years of Service

User Offline

Joined: 13th Dec 2011

Location: Paris

Posted: 22nd May 2017 23:59

Link

remove it ? :p

--------------------------------
Join us on dedicated AppGameKit WeeKChat :

https://week.chat/room/AppGameKit

Back to top

Profile PM Email

Stab in the Dark software

Valued Member

21

Years of Service

User Offline

Joined: 12th Dec 2002

Playing: Badges, I don't need no stinkin badges

Posted: 23rd May 2017 00:34

Link

I mean like this screen shot from Google cardboard app.

The coffee is lovely dark and deep,and I have code to write before I sleep.

Attachments

Login to view attachments

Back to top

Profile PM Email Website

MikeMax

AGK Academic Backer

12

Years of Service

User Offline

Joined: 13th Dec 2011

Location: Paris

Posted: 23rd May 2017 01:25 Edited at: 23rd May 2017 01:25

Link

This low lens correction is strange ... This headset has no lenses ? :p

for my FreeFly VR (which have the big FOV of 120°) i need this correction :

--------------------------------
Join us on dedicated AppGameKit WeeKChat :

https://week.chat/room/AppGameKit

Attachments

Login to view attachments

Back to top

Profile PM Email

janbo

15

Years of Service

User Offline

Joined: 10th Nov 2008

Location: Germany

Posted: 23rd May 2017 16:03 Edited at: 15th Jul 2017 01:31

Link

Stab in the Dark software

I think it's a different technique they use...or the lens curvature is so small that you could ignore it ^^
I think they are doing the correction on vertex level.
It's faster because you don't have to process every pixel on screen like I do, even if you have to add some vertices's to your models to make a good illusion.
I think its on vertex level because if you hold an ruler at an edge of the hill model, you can see that it is straight... that's why you don't notice the lens correction.
So it's not a perfect solution like the per fragment one, but in some cases a much faster one...ofc. you need a game art that fits well to that kind dependence...
Mobile VR apps tend to make it kind of polygon style with only face colors and no textures and so on.

[Edit]
You could probably zoom out, apply the shader and then take a smaller area from the resulting render image which you then stretch to fit the borders.
You need to increase the resolution of the render image so it fits the device resolution after the procedure...
I only tested my lib on my Honor 8 with a cheap copy the of Google cardboard, but it works perfectly and I can't see the borders nor I get ill...
[Edit]

Using AGKv2 Tier1

Back to top

Profile PM Email Website

Stab in the Dark software

Valued Member

21

Years of Service

User Offline

Joined: 12th Dec 2002

Playing: Badges, I don't need no stinkin badges

Posted: 24th May 2017 03:17 Edited at: 24th May 2017 03:18

Link

I changed this line in your shader to this value and just set the center to 0.0

+ Code Snippet

highp float alpha = 0.015; /* lens parameter */

It seems to be working well for my tzumi Dream Vision head set with my LG Stylo 3.
The screen resolution on the LG Stylo 3 is 1280 x 720.
Are the other shaders in your demo deprecated as part of the development process?

The coffee is lovely dark and deep,and I have code to write before I sleep.

Attachments

Login to view attachments

Back to top

Profile PM Email Website

janbo

15

Years of Service

User Offline

Joined: 10th Nov 2008

Location: Germany

Posted: 24th May 2017 15:15 Edited at: 15th Jul 2017 01:31

Link

Well,
Now you have nearly no lens correction.
You could probably remove the shader...
I have read that the lens of your Dream Vision does have a focal length of 42mm and the Cardboard lenses have 45mm, so you should have a higher curvature...
You should increase the alpha variable instead.

Quote: "Are the other shaders in your demo deprecated as part of the development process?"

sort of ...you can probably make them all work again... as they was working once ...

Using AGKv2 Tier1

Back to top

Profile PM Email Website

Stab in the Dark software

Valued Member

21

Years of Service

User Offline

Joined: 12th Dec 2002

Playing: Badges, I don't need no stinkin badges

Posted: 28th May 2017 22:06

Link

Quote: "I have read that the lens of your Dream Vision does have a focal length of 42mm and the Cardboard lenses have 45mm, so you should have a higher curvature...
You should increase the alpha variable instead."

You are correct, I still need the barrel distortion to compensate for the lenses.
0.2 seems to be correct for my lenses. I found that if I change this line in the shader
it keeps the barrel distortion but creates a larger image to fill the screen so I can not see
the edges in the viewer. I changed the 1.0 - alpha to 1.18 - alpha. Do you think this is correct
or have I made a mistake again?

+ Code Snippet

	/* Transform */
	highp vec2 p2 = p1 / (1.18 - alpha * length(p1));

The coffee is lovely dark and deep,and I have code to write before I sleep.

Back to top

Profile PM Email Website

janbo

15

Years of Service

User Offline

Joined: 10th Nov 2008

Location: Germany

Posted: 29th May 2017 12:19 Edited at: 15th Jul 2017 01:31

Link

@Stab in the Dark software
No you are right that should work, but the center will get shifted and you might want to increase the render target size.
Actually its a pretty good finding

You can use the "BarrelDistortion#" value in the "VR_Init" function to increase the render target..just set it to 1.18 then
[Edit]I updated my demo above[/Edit]

Using AGKv2 Tier1

Back to top

Profile PM Email Website

Xaron

9

Years of Service

User Offline

Joined: 3rd May 2014

Location: Germany

Posted: 30th May 2017 13:00 Edited at: 30th May 2017 13:01

Link

Hey there, I just looked at this 2D Normal Map Shader:
https://forum.thegamecreators.com/thread/212611

But using the latest AGKv2 version it looks like:

My blog - including app sales and download numbers

Attachments

Login to view attachments

Back to top

Profile PM Website

janbo

15

Years of Service

User Offline

Joined: 10th Nov 2008

Location: Germany

Posted: 30th May 2017 16:39 Edited at: 15th Jul 2017 01:31

Link

@Xaron
Hm try this

Using AGKv2 Tier1

Attachments

Login to view attachments

Back to top

Profile PM Email Website

Xaron

9

Years of Service

User Offline

Joined: 3rd May 2014

Location: Germany

Posted: 31st May 2017 07:30 Edited at: 31st May 2017 07:31

Link

Thanks, it has the same issue. Maybe it's because of my system then? I have quite an unusual graphics card, the NVidia Quadro K600.

Back to top

Profile PM Website

janbo

15

Years of Service

User Offline

Joined: 10th Nov 2008

Location: Germany

Posted: 31st May 2017 12:18 Edited at: 15th Jul 2017 01:31

Link

Even if its an unusual graphics card, the Quadro series is for rendering heavy stuff and I doubt that NVIDIA didn't got it right.
If you are a bit familiar with glsl you could remove/shrink the shader to it's bare-bones step by step and see if it gets any better and where it fails.

You can even see the vertices of the sprite...very unusual stuff...maybe it's the card though

What happens if you have no lights ?

Using AGKv2 Tier1

Back to top

Profile PM Email Website

Xaron

9

Years of Service

User Offline

Joined: 3rd May 2014

Location: Germany

Posted: 31st May 2017 12:20 Edited at: 31st May 2017 12:22

Link

Yeah I will try to strip it down. I have a bit of shader knowledge so it should be possible. Let's see. I'll try it on my other PCs as well but I guess it's a problem with the specific one here.

edit: Will try with no lights...
edit2: That's without lights:

Attachments

Login to view attachments

Back to top

Profile PM Website

Xaron

9

Years of Service

User Offline

Joined: 3rd May 2014

Location: Germany

Posted: 31st May 2017 12:40

Link

Ok fixed it. In your main shader there was the following:

+ Code Snippet

vec3 Light;
for(int i=0; i < int(LightCount); i++)
{
  Light = Light + light(LightPosition[i], LightColor[i]);
}

So you use a not initialized variable called Light. This might work on many platforms but obviously mine is NOT initialized correctly with 0,0,0. Doing that fixed it:

+ Code Snippet

vec3 Light = vec3( 0.0, 0.0, 0.0 );
for(int i=0; i < int(LightCount); i++)
{
  Light = Light + light(LightPosition[i], LightColor[i]);
}

Cheers!

Attachments

Login to view attachments

Back to top

Profile PM Website

janbo

15

Years of Service

User Offline

Joined: 10th Nov 2008

Location: Germany

Posted: 31st May 2017 12:59 Edited at: 15th Jul 2017 01:31

Link

@Xaron
Haha, I was about to say that you should try to initialize the Light variable, don't know why I did not

But I'm glad the problem is out of the way.
So why is it working for me...in other words: why is the Light variable zero and not pointing into nowhere ?

Using AGKv2 Tier1

Back to top

Profile PM Email Website

Xaron

9

Years of Service

User Offline

Joined: 3rd May 2014

Location: Germany

Posted: 31st May 2017 13:06

Link

Well that's the "magic" of different compilers on different systems. You see even C++ does quite funny things with not initialized variables on some systems but not all of them. It's just not clearly defined so always dangerous.

Back to top

Profile PM Website

Jack

19

Years of Service

User Offline

Joined: 4th Oct 2004

Location: [Germany]

Posted: 16th Jun 2017 22:00 Edited at: 16th Jun 2017 22:04

Link

2d Shader Primitives

Allows you to render 2d primitives without media.

This is a small lib to provide rendered, 2d primitives, even including a border.
You can also apply two images for the border/ fill aswell as a simple color.
You can also set the fill to transparent to only use the borders. It renders images in any size,
so it also should be pixel perfect.

Greetings, Jack

[/url]

Attachments

Login to view attachments

Back to top

Profile PM Email Website

GarBenjamin

AGK Developer

7

Years of Service

User Offline

Joined: 30th Nov 2016

Location: USA

Posted: 16th Jun 2017 23:32

Link

@Jack Thanks for sharing this. These actually work right "out of the box" so to speak. Awesome!

TI/994a (BASIC) -> C64 (BASIC/PASCAL/ASM/Others) -> Amiga (AMOS/BLITZ/ASM/C/Gamesmith) -> DOS (C/C++/Allegro) -> Windows (C++/C#/Monkey X/GL Basic/Unity/Others)

Back to top

Profile PM

Jack

19

Years of Service

User Offline

Joined: 4th Oct 2004

Location: [Germany]

Posted: 17th Jun 2017 00:15

Link

Thanks GarBenjamin,

there should be a better way to render the images, my current method brings some sync flickers as the images are rendered in the first frames with it.
I would be glad if you could create something based on this lib and post the image in your post

[/url]

Back to top

Profile PM Email Website

george++

AGK Tool Maker

16

Years of Service

User Offline

Joined: 13th May 2007

Location: Thessaloniki, Hellas

Posted: 17th Jun 2017 10:50

Link

@janbo: I have interest in normal mapping. I don't know if normal mapping is mobile friendly

Back to top

Profile PM Email

janbo

15

Years of Service

User Offline

Joined: 10th Nov 2008

Location: Germany

Posted: 18th Jun 2017 18:55 Edited at: 15th Jul 2017 01:31

Link

@ george++
Every intense calculation isn't mobile friendly

but it is very much possible
I plan on releasing a 3D shader pack of useful game shaders and create one or more demos around it.
I can/will add my normal-mapping shader but I don't know when I can release it.
If you need some special shaders you can post your ideas ofc please.
Preview

But first I have another free shader for you guys.
I saw this thread today and here is my solution for it.

Masked Progressbar
Note that you can create any silhouette, it just depends on your mask.
You set the color with SetSpriteColor()
Preview

Demo (not the best demo code of mine but it shows what you need)
Link

Using AGKv2 Tier1

Attachments

Login to view attachments

Back to top

Profile PM Email Website

hoyoyo80

7

Years of Service

User Offline

Joined: 11th May 2016

Location:

Posted: 18th Jun 2017 21:04

Link

Hi all, can i humbly request for outline(normally black) in 3d object? Thanks

Back to top

Profile PM

janbo

15

Years of Service

User Offline

Joined: 10th Nov 2008

Location: Germany

Posted: 18th Jun 2017 21:28 Edited at: 15th Jul 2017 01:31

Link

Like that one which often comes with a Toon shaders or like that in Borderlands ?
Just Added to my list

Also if Paul doesn't provide the possibility to pass tangents and bi-tangents to the shader attributes to create faster normal mapping for example
I may create a little lib for that also

Using AGKv2 Tier1

Back to top

Profile PM Email Website

hoyoyo80

7

Years of Service

User Offline

Joined: 11th May 2016

Location:

Posted: 18th Jun 2017 23:59

Link

Like the toon shader outline..yes.

Back to top

Profile PM

janbo

15

Years of Service

User Offline

Joined: 10th Nov 2008

Location: Germany

Posted: 19th Jun 2017 17:47 Edited at: 15th Jul 2017 01:31

Link

Did you try this:
paste it above your sync()
This works best for convex objects

+ Code Snippet

	SetObjectScale(ObjectID,1.03,1.03,1.03)
	SetObjectCullMode(ObjectID,2)
	SetObjectColor(ObjectID,0,0,0,255)
	DrawObject(ObjectID)
	SetObjectScale(ObjectID,1,1,1)
	SetObjectCullMode(ObjectID,1)
	SetObjectColor(ObjectID,100,80,64,255) // Reset to old object color

If you need something more advanced like glowing outline or something like in left 4 dead I might add it to the pack

Using AGKv2 Tier1

Back to top

Profile PM Email Website

hoyoyo80

7

Years of Service

User Offline

Joined: 11th May 2016

Location:

Posted: 19th Jun 2017 21:15

Link

Wow..maybe something like that.Is this like the toon shader effect? i try this first and report back. Thanks

Back to top

Profile PM

Sorry your browser is not supported!

AppGameKit Classic Chat / Useful Community Shaders Project

Attachments

Attachments

Attachments

Attachments

Attachments

Attachments

Attachments

Attachments

Attachments

Attachments

Attachments

Attachments

Attachments