LE2:: Camera control tutorial code anomaly

[Juggernaut]

Hi,

 

I am following the camera control tutorial of LE 2 as shown here -

 

http://www.leadwerks.com/werkspace/page/Documentation/le2/_/tutorials/camera-controls-r385

 

When I move my mouse sideways I find a slight frosted glass or watery wave along surface of the brick columns and a bit jittery on the edges of the brick columns.

 

What is causing this ? How can I fix it so that it does not happen in my game ?

 

Thanks,

[cassius]

Can you provide a bit more info? Such as a picture or some code.or video.

 

EDIT: Sounds like a graphics problem.

[Juggernaut]

Well the problem is that it happens only when I am moving the camera using the mouse. So I do not think a picture will tell the what I mean. You might be able to see it in the tutorial video if you are viewing it in high quality. It is more like a subtle heat-haze effect on the

edges and surface of the brick columns - happens only when the camera is moved. No such effect noticed on the concrete floor

though.

[cassius]

I watched the tutorial but could see nothing wrong.

[Juggernaut]

ok. But I think activating anti-aliasing can fix my issue. I found the function SetAntialias();

But when I call it after Graphics(), though the program builds but it does not run - throws run-time error. "Unhandled exception at 0x777015de in Game_3.exe: 0xC0000005: Access violation reading location 0x00000000."

 

When should I call SetAntialias(1) ? Before Graphics() or after Graphics() or somewhere else ?

[cassius]

Are you using framework? That does a lot for you. No need for buffers etc.

 

EDIT: The tutorial is somewhat dated.

[Juggernaut]

No. I am just trying to set up anti-aliasing working in that camera tutorial.

[cassius]

TFramework framework=CreateFramework();

if (!framework) {

MessageBoxA(0,"Error","Failed to create framework.",0);

return Terminate();

}

TLayer layer = GetFrameworkLayer(0);

TCamera cam=GetLayerCamera(layer);

//Set Lua variable

BP L=GetLuaState();

lua_pushobject(L,framework);

lua_setglobal(L,"fw");

lua_pop(L,1);

//DebugPhysics(true);

// Post Processing FX

SetGodRays(0);

SetHDR(0);

 

Framework creates a world for you.

[Juggernaut]

All right, I will try to look at that "Framework" thing first ..... if that is a wonder wand for us ( new comers ).

 

It seems your code is in LUA and I am using C++ ...... so I guess I look for the C++ version of the framework.

[cassius]

Heres some code that sets up a third person camera. Easily changed to first person.

NOTE: I have removed my own gameplay code and this may cause a syntax error. If so it will be something to do with curly brackets.

 

#include "engine.h"

 

TEntity scene;

　

int

 

 

main(int argc, char** argv)

{

　

Initialize();

RegisterAbstractPath(

 

"c:/mygame");

Graphics(1100,800);

AFilter(4) ;

TFilter(1) ;

　

TFramework framework=CreateFramework();

 

 

if (!framework) {

MessageBoxA(0,

 

"Error","Failed to create framework.",0);

 

 

return Terminate();

}

TLayer layer = GetFrameworkLayer(0);

TCamera cam=GetLayerCamera(layer);

 

 

//Set Lua variable

BP L=GetLuaState();

lua_pushobject(L,framework);

lua_setglobal(L,

 

"fw");

lua_pop(L,1);

DebugPhysics(

 

false);

 

 

// Post Processing FX

SetGodRays(0);

SetHDR(0);

SetSSAO(0);

SetBloom(0);

SetAntialias(0);

SetStats(1);

SetReflectionElements(ENTITY_RENDERABLE);

 

 

 

 

// Skybox

SetSkybox(LoadMaterial(

 

"abstract::NiceSky.mat"));

 

 

//SetBackgroundColor(Vec4(1.0f, 1.0f, 1.0f, 1));

SetBackgroundColor(Vec4(1.12f, 0.82f, 0.82f, 1));

// Movement vars

 

 

float move=0.0, strafe=0.0;

TVec3 camrotation=Vec3(0);

 

 

float mx=0, my=0;

　

　

HideMouse();

MoveMouse(GraphicsWidth()/2,GraphicsHeight()/2);

AmbientLight(Vec3(1.0));

　

 

// ************************* main loop ******************

while

 

 

( !KeyHit(KEY_ESCAPE ))

 

UpdateAppTime();

UpdateWorld(AppSpeed());

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(cam,camrotation);

move = 3.5 * (KeyDown(KEY_W) - KeyDown(KEY_S));

strafe = 3 * (KeyDown(KEY_D) - KeyDown(KEY_A));

　

 

 

float jump=0.0;

 

 

if (KeyHit(KEY_SPACE)) {

 

 

if (!ControllerAirborne(player)) {

jump=8.0;

}

}

 

 

// move faster

 

 

if(KeyDown(KEY_E) ){

 

 

if (!ControllerAirborne(player)) {

move*=3.0;

strafe*=2.0;

}

　

}

　

　

}

 

 

//Position camera and 3rd person main character

TVec3 playerpos=EntityPosition(player);

TVec3 camerapos=EntityPosition(cam);

camerapos.Y=Curve(playerpos.Y+ 0.80,camerapos.Y,2.0);

camerapos=Vec3(playerpos.X,camerapos.Y,playerpos.Z);

camerapos=Vec3(playerpos.X,camerapos.Y,playerpos.Z);

PositionEntity(cam,camerapos);

MoveEntity(cam,Vec3(0.3,0,-2.3));

UpdateController(player, camrotation.Y, move, strafe, jump, 500.0f);

 

UpdateFramework();

RenderFramework() Flip(0) ;

}

}

　

}

 

// main

[Juggernaut]

@cassius : Many thanks.

[cassius]

its c code. Sorry it looks a bit messy. It was late and I was tired.

[Juggernaut]

No problem