Laser Shader (with pictures)

[nathanf534]

It uses glsl, so its only for openGl, sorry.





Fragment Shader

Code: Select all

varying vec3 normal;
void main (void){
    vec3 n,lightDir;
    lightDir=vec3(0,0,1);
    float d;
    n = normalize(normal);
    d = abs(dot(n,normalize(lightDir)));
    d=d/270.0;
    gl_FragColor = vec4(d*d*65536.0,max(d*d*524288.0,50),d*d*65536.0,255);
}

Vertex Shader

Code: Select all

varying vec3 normal;
void main(void){
    normal = normalize(gl_NormalMatrix * gl_Normal);				
    gl_Position = ftransform();
}

Just make a cylinder mesh, and set this as the material.

example:

Code: Select all

laserMaterial=gpu->addHighLevelShaderMaterialFromFiles(vertexShader,"vertexMain",video::EVST_VS_1_1,pixelShader,"pixelMain", video::EPST_PS_1_1,sc,video::EMT_TRANSPARENT_ADD_COLOR);
ISceneNode* laser=smgr->addMeshSceneNode(mesh,0,0,vector3df(0,100,0),vector3df(0),vector3df(1,10,1),false);
	laser->setMaterialFlag(EMF_LIGHTING,false);
	laser->setMaterialType((E_MATERIAL_TYPE)laserMaterial);

[slavik262]

Screenshots for those of us who aren't sitting in front of our compiler?

[nathanf534]

The screenshots should be working now.

[ent1ty]

They work, but they take about 5 minutes to load
Edit: or maybe you already fixed them
Edit2: it looks quite nice, good work!