Pass the color screen to shader

[Gilmer]

Hi, Im trying use my own post process shader. But the strange is that when I use: "texture2D( texture3....." to get the blurred bloom, it get, but if I use "texture2D( texture0...." to get the color, appears only a black screen, like if dont have color.

 

I think that is something with the way that I'm using the buffers in code. I never did some like this. And the only topic that I found, is this:

http://www.leadwerks.com/werkspace/topic/2969-cartoon-shaders/

 

But the link dont's working :/

 

Here the code:

 

main.cpp

 

gaussianRally = LoadShader("abstract::postfilter.vert","abstract::postfilter_blurRally.frag");
SetBloom(1);

.......

//Main Loop
UpdateFramework();
RenderFramework();


SetShader(gaussianRally);

SetBlend(0);
DrawImage(GetColorBuffer(shaderBuffer,0),0,0,1024,768);

Flip();

// end Loop

 

 

postfilter_blurRally.frag

 

#define LW_BLURRALLY

Include "abstract::postfilter.frag"

 

 

 

blurrally.frag (getting the "texture3")

#define gaussiansamplerange 1.0


for(int i=0;i<8;i++){
outputcolor += texture2D( texture3, texcoord + vec2(0.0,pixelsize.y*gaussiansamplerange	) );
outputcolor += texture2D( texture3, texcoord + vec2(0.0,pixelsize.y*gaussiansamplerange*0.2*i) );
outputcolor += texture2D( texture3, texcoord - vec2(0.0,pixelsize.y*gaussiansamplerange	) );
outputcolor += texture2D( texture3, texcoord - vec2(0.0,pixelsize.y*gaussiansamplerange*0.2*i	) );
outputcolor += texture2D( texture3, texcoord + vec2(pixelsize.x*gaussiansamplerange,0.0	) );
outputcolor += texture2D( texture3, texcoord + vec2(pixelsize.x*gaussiansamplerange*0.2*i,0.0	) );
outputcolor += texture2D( texture3, texcoord - vec2(pixelsize.x*gaussiansamplerange,0.0	) );
outputcolor += texture2D( texture3, texcoord - vec2(pixelsize.x*gaussiansamplerange*0.2*i,0.0	) );
outputcolor /= 9.0;	
}

 

result:

 

 

blurrally.frag (getting the "texture0")

#define gaussiansamplerange 1.0


for(int i=0;i<8;i++){
outputcolor += texture2D( texture0, texcoord + vec2(0.0,pixelsize.y*gaussiansamplerange	) );
outputcolor += texture2D( texture0, texcoord + vec2(0.0,pixelsize.y*gaussiansamplerange*0.2*i) );
outputcolor += texture2D( texture0, texcoord - vec2(0.0,pixelsize.y*gaussiansamplerange	) );
outputcolor += texture2D( texture0, texcoord - vec2(0.0,pixelsize.y*gaussiansamplerange*0.2*i	) );
outputcolor += texture2D( texture0, texcoord + vec2(pixelsize.x*gaussiansamplerange,0.0	) );
outputcolor += texture2D( texture0, texcoord + vec2(pixelsize.x*gaussiansamplerange*0.2*i,0.0	) );
outputcolor += texture2D( texture0, texcoord - vec2(pixelsize.x*gaussiansamplerange,0.0	) );
outputcolor += texture2D( texture0, texcoord - vec2(pixelsize.x*gaussiansamplerange*0.2*i,0.0	) );
outputcolor /= 9.0;	
}

 

result:

 

 

Why I cant get the texture0? Whats I need to do?

[Canardia]

Works fine for me:

#include "engine.h"
int main()
{
Initialize();
Graphics();
CreateFramework();
TCamera cam=GetLayerCamera(GetFrameworkLayer(0));
TMesh cube=CreateCube();
MoveEntity(cam,Vec3(0,0,-5));
AmbientLight(Vec3(0));
CreateDirectionalLight();
EntityColor(cube,Vec4(1,0,0,1));
TShader gaussianrally = LoadShader("abstract::postfilter.vert","abstract::postfilter_blurrally.frag");
TBuffer shaderbuffer = CreateBuffer(640,480,BUFFER_COLOR);
SetBloom(1);
while(!KeyHit())
{
	UpdateFramework();
	TurnEntity(cube,Vec3(AppSpeed()));
	SetBuffer(shaderbuffer);
	RenderFramework();
	SetBuffer(BackBuffer());
	SetShader(gaussianrally);
	DrawImage(GetColorBuffer(shaderbuffer,0),0,0,640,480);
	SetShader(NULL);
	Flip(0);
}
return Terminate();
}

[Gilmer]

hehe...now it's working for me. I dont know work very good with buffers..

thx Lumooja