source: trunk/vizservers/nanovis/shaders/pointsvp.cg @ 827

void main(in float4 posin : POSITION,
                in float4 colin : COLOR0,
                out float psize : PSIZE,
                out float4 posout : POSITION,
                out float4 colout : COLOR0,
                uniform float atten,
                /*uniform sampler2D normal,*/
                uniform float4 posoffset,
                uniform float4 basepos,
                uniform float4 scale,           
        uniform float4x4 modelview,
        uniform float4x4 projection)
{

        float4 vec, homeye, eye;
        vec.xyz = posin.xyz;
        vec.w = 1.0;
        homeye = mul(modelview, vec);
        posout = mul(projection, homeye);
        
        float4 p = mul(modelview, vec);
        //psize = scale.x   *(p.w / -p.z) * 10;
        
        //psize = 5 * scale.x;
        //psize = 2 * p.w / -p.z;
        //colout = float4(colin.xyz,0.1);
        
        
//      float tmp = posin.w * rsqrt(dot(eye.xyz, eye.xyz));
//      psize = scale.x * max(tmp, 1.0);
        psize = 10 * p.w / -p.z;
        
        colout = float4(colin.xyz, colin.w * 0.25);
/*
        float4 vec, homeye, eye;
        float tmp;
        
        vec.xyz = posin.xyz;//(posin.xyz + posoffset.www) * basepos.www + basepos.xyz;
        vec.w = 1.0;
        
        homeye = mul(modelview, vec);
        posout = mul(projection, homeye);
        
        //eye = homeye / homeye.w;
        
        //tmp = posin.w * basepos.w * scale.w * rsqrt(atten * dot(eye.xyz, eye.xyz));
        
        //psize = scale.x * max(tmp, 1.0);
        //tmp = min(tmp, 1.0);
        //colout = colin;
        //tmp = colin.w * scale.z * tmp * tmp;
        //colout.w = max(tmp, 4.0/256);
        
        psize = 5.0;

        
        colout = float4(0.0, 0.0, 1.0, 0.1);
*/      
}