[Post-Processing Problem]

I've made this simple program based on the Post-Processing tutorial which works fine until I set a shader which causes the end result to be a solid grey image. I'm positive it's a problem somewhere when setting the shader because it all rendered fine before I added that code. I've tried 'abstract' file system as well as loading each file directly.

Can anyone help? Here's the code :

 

#include "engine.h"


int main(int argc,char** argv)
{

Initialize();
Graphics(640,480);

TWorld world=CreateWorld();


TEntity MainCam=CreateCamera();
       MoveEntity(MainCam,Vec3(0,5,-20));
CameraClearMode(MainCam,BUFFER_DEPTH);

//creat a render buffer for lighting
TBuffer gbuffer=CreateBuffer(640,480,BUFFER_COLOR|BUFFER_DEPTH|BUFFER_NORMAL);
//create a buffer for post processing effects
TBuffer postbuffer=CreateBuffer(640,480,BUFFER_COLOR);

//creat a directional light, e.g. the sun
TLight light=CreateDirectionalLight();
RotateEntity(light,Vec3(45,45,0));


//create the skybox
TWorld background=CreateWorld();
TMesh skybox=CreateCube();
TCamera skycam=CreateCamera();
FlipMesh(skybox);
PaintEntity(skybox,LoadMaterial("FullskiesBlueClear0016_2_L.mat"));
SetWorld(world);



TTerrain terrain=CreateTerrain(64);
ScaleEntity(terrain,Vec3(5,5,5));


TEntity Oak=LoadModel("Oak/Oak.gmf");
PositionEntity(Oak,Vec3(-40,0,-30));


TShader postfilter=LoadShader("abstract::postfilter.vert","abstract::postfilter_desaturate.frag");



TTexture grass1=LoadTexture("terrain_forest_grass.dds");
SetTerrainTexture(terrain,grass1,0,0);
SetTerrainTextureScale(terrain,6,0);

   TVec3 camrotation=Vec3(0);
   float mx=0;
   float my=0;
   HideMouse();
   MoveMouse(GraphicsWidth()/2,GraphicsHeight()/2);


while(!KeyHit(KEY_ESCAPE))
{

  mx=Curve(MouseX()-GraphicsWidth()/2,mx,6);
  my=Curve(MouseY()-GraphicsHeight()/2,my,6);
  MoveMouse(GraphicsWidth()/2,GraphicsHeight()/2);

  camrotation.X=camrotation.X+my/10.0;
  camrotation.Y=camrotation.Y-mx/10.0;
  RotateEntity(MainCam,camrotation);

  if(KeyDown(KEY_W))
  {
	  MoveEntity(MainCam,Vec3(0.0,0.0,0.2));
  };
  if(KeyDown(KEY_S))
  {
	  MoveEntity(MainCam,Vec3(0.0,0.0,-0.2));
  };




  UpdateAppTime();
  UpdateWorld();

         SetBuffer(gbuffer);

  //render the background
  RotateEntity(skycam,EntityRotation(MainCam));
  SetWorld(background);
  RenderWorld();

  SetWorld(world);
  RenderWorld();

  SetBuffer(postbuffer);
  RenderLights(gbuffer);

  SetBuffer(BackBuffer());

  SetShader(postfilter);
  DrawImage(GetColorBuffer(postbuffer),0,GraphicsHeight(),GraphicsWidth(),-GraphicsHeight());




  Flip();

}

Terminate();
return 0;


}

[OpenGL collision with Leadwerks commands?]

Hmmm, thanks Masterxilo,

I had a feeling lighting would be a pain...I'll have to give it more thought=]

maybe the surface commands are the best shot, though they're awfully slow when changeing a vertexs postion..

I'll do reasearch

thanks,

[OpenGL collision with Leadwerks commands?]

I want to make my own terrain generator/editor with LOD levels, and the built in surface commands are two slow for me..so I'm going to use OpenGL. But before I go any further with it...would it be possible to set up the terrain model some how to accept leadwerks collision commands, with vehicles and controllers? Everything..?

 

I havn't gone far with this project yet...jsut want to see if its all possible..=]

 

Thanks=]

[...jumpy shadows and objects...]

I'm useing both a directional light and several points - they all have the same problem.

 

Thanks for your thoughts Flexman, I was thinking along similar lines.

Floating point errors? So they're a game engine thing? Not a C++ thing? Hasn't anyone tried fixing them?

 

Thanks for the replys..=]

[...jumpy shadows and objects...]

Hey everyone,

 

I'm fairly new to Leadwerks, so go easy on me =]

I'm not sure if I'm doing something wrong or not...but I had a building, and lights with the centre at : (0,0,0)

Everything was fine until I moved it a huge distance away : (10000,0,10000) - because I have a huge island...

 

Every time The camera moves the shadows are very jumpy, and even some of the objects seem to have the jitters...

but when the camera stops so do the jitters...it seems to be less jittery the closer I move everything to the worlds centre..

 

Any Ideas? or is the answer stareing me in the face?? =]

Thanks

[Global Entitys?]

Ok, I'll declare them before the function, Thanks

[Global Entitys?]

You know, just as I posted that I thought, "I know how to fix that,"

At the beginning of the code (before 'main') i added : TEntity Tailgate;

 

Then when I load the model instead of TEntity TailGate=LoadModel("TailGate.gmf");

I just used : TailGate=LoadModel("TailGate.gmf");!!!!

And it works fine....(I feel stupid)

Thanks though!!

[Global Entitys?]

Here's The code I'm using,

Everything else works fine. It just doesn't know what 'TailGate' is,

 

#include "engine.h"

void UdateTailGate(void);
int TailGateAngle=0;
int TailGateStatus=0;

int main(int argc,char** argv)
{

Initialize();
Graphics(1024,768);
CreateWorld();


TEntity MainCam=CreateCamera();
PositionEntity(MainCam,Vec3(0,6,-7));
RotateEntity(MainCam,Vec3(30,0,0));


TLight MainLight=CreateSpotLight(20.0);
TLight MainLight2=CreateSpotLight(20.0);
PositionEntity(MainLight,Vec3(0,12,6));
PositionEntity(MainLight2,Vec3(0,12,-6));

SetShadowmapSize(MainLight,2000);
SetShadowmapSize(MainLight2,2000);
RotateEntity(MainLight,Vec3(90,0,0));
RotateEntity(MainLight2,Vec3(90,0,0));


TEntity Floor=CreatePlane();
ScaleEntity(Floor,Vec3(10,1,10));
TEntity Car=LoadModel("JeepMain.gmf");

TEntity Bonnet=LoadModel("Bonnet.gmf");
PositionEntity(Bonnet,Vec3(0.012,3.177,-1.297));
EntityParent(Bonnet,Car);

int BonnetAngle=0;
int BonnetStatus=0;//0-closed,1-open,2-opening,3-closeing



TEntity TailGate=LoadModel("TailGate.gmf");
PositionEntity(TailGate,Vec3(-1.105,2.249,4.578));
EntityParent(TailGate,Car);


TEntity SpareWheel=LoadModel("Wheel.gmf");
PositionEntity(SpareWheel,Vec3(0,2.293,5));
EntityParent(SpareWheel,TailGate);



TEntity LeftDoor=LoadModel("LeftDoor.gmf");
PositionEntity(LeftDoor,Vec3(1.975,2.669,-0.618));
EntityParent(LeftDoor,Car);





TBuffer Buffer=CreateBuffer(1024,768,BUFFER_COLOR|BUFFER_DEPTH|BUFFER_NORMAL);//buffer for teh lights
float CarAng=0.0;



while(!KeyHit(KEY_ESCAPE))
{

if(KeyHit(KEY_==1)
{
if(BonnetStatus==0)
{
BonnetStatus=2;
}
else
{
if(BonnetStatus==1)
{
BonnetStatus=3;
}
}



}

if(BonnetStatus==2)
{
if(BonnetAngle<60)
{
BonnetAngle++;
RotateEntity(Bonnet,Vec3(BonnetAngle,0,0));
}
else
{
BonnetStatus=1;//open
}
}

if(BonnetStatus==3)
{
if(BonnetAngle>0)
{
BonnetAngle--;
RotateEntity(Bonnet,Vec3(BonnetAngle,0,0));
}
else
{
BonnetStatus=0;//closed
}
}


UdateTailGate();



RotateEntity(Car,Vec3(0,CarAng,0));
CarAng=CarAng-0.2;

UpdateWorld(1);
SetBuffer(Buffer);


RenderWorld(RENDER_ALL);
SetBuffer(BackBuffer());
RenderLights(Buffer);
SetBuffer(BackBuffer());


Flip(1);

}

Terminate();
return 0;

}





void UdateTailGate(void)
{

if(KeyHit(KEY_T)==1)
{
if(TailGateStatus==0)
{
TailGateStatus=2;
}
else
{
if(TailGateStatus==1)
{
TailGateStatus=3;
}
}
}


if(TailGateStatus==2)
{
if(TailGateAngle<100)
{
TailGateAngle++;
RotateEntity(TailGate,Vec3(0,TailGateAngle,0));//Tailgate is an undeclared Identifier
}
else
{
TailGateStatus=1;//open
}
}

if(TailGateStatus==3)
{
if(TailGateAngle>0)
{
TailGateAngle--;
RotateEntity(TailGate,Vec3(0,TailGateAngle,0));
}
else
{
TailGateStatus=0;//closed
}
}
};

[Global Entitys?]

Ahhh, really?

That'd explain a few problems...

Thanks carlb!

 

So is this global Entity problem only with 2010 you think?

Or its got nothing to do with it?

[Global Entitys?]

I'm using C++ 2010, and I'm trying to make a function to rotate a car door, but the door model is loaded in the "main" function so that makes it local only to that function right?

How do I get other functions to recognize it too?

I've tried Initializing, setting up the graphics and loading the door before "main", but it doesn't work...

Any suggestions?

(I'm rather new to both C++ and LeadWerks)

 

Thanks