OSL

Octane Cubemap

Using octane + houdini.

Wip this is just shit I stole from the octane forums to give me a start because OSL is a little confusing, and Houdini implementation even worse.

shader OslCamera(
    float roomWidth = 1 [[ float min = 0.0, float max = 100.0 ]],
    float roomHeight = 1.0 [[ float min = 0.0, float max = 100.0 ]],
    float roomDepth = 1.0 [[ float min = 0.0, float max = 100.0 ]],
    float ceilingOffset = 0,
    float leftOffset = 0.5,
    float frontOffset = 0.5,
    float rightOffset = 0.5,
    float floorOffset = 0,
    output point  pos  = P,
    output vector dir  = 0,
    output float  tMax = 1.0/0.0)
{
    float pa;
    int res[2];
    float r = 8.0;
    float col = floor(u*3);
    float row = floor(v*3);
    float nu = (u*3) - floor(u*3)-0.5;
    float nv = (v*3) - floor(v*3)-0.5;
    vector forward = vector(0,0,1);
    vector up = vector(0,0,0);
    vector right = vector(0,0,0);
    float width = 1;
    float height = 1;
    vector pN = vector(0,0,0); 
        
if(col==1 && row==2) {
//ceiling
        forward = vector(0,1,0);
        right = vector(roomWidth,0,0); 
        up = vector(0,0,roomDepth);
        pN = vector(0,roomHeight-ceilingOffset,0);
        }
if(col==0 && row==1) {
//left
        forward = vector(-1,0,0);
        up = vector(0,roomHeight,0);
        right = vector (0,0,-roomDepth);
        pN = vector(leftOffset-roomWidth/2,roomHeight/2,0);
        }
if(col==1 && row==1) {
//forward
        forward = vector(0,0,-1);
        up = vector(0,roomHeight,0);
        right = vector(roomWidth,0,0);
        pN = vector(0,roomHeight/2,-(frontOffset-(roomDepth/2.0)));
}
if(col==2 && row==1) {
//right
        forward = vector(1,0,0);
        up = vector(0,roomHeight,0);
        right = vector(0,0,roomDepth);
        pN = vector(roomWidth/2-rightOffset,roomHeight/2,0);
}
if(col==1 && row==0) {
//floor
        forward = vector(0,-1,0);
        up = vector(0,0,-roomDepth);
        right = vector(roomWidth,0,0);
        pN = vector(0,floorOffset,0);
}
if(col==0 && row==2) {
//curtains
        forward = vector(0,0,-1);
        up = vector(0,roomHeight,0);
        right = vector(roomWidth,0,0);
        pN = vector(roomWidth*2.0,0.5,roomDepth);
}
if(col==0 && row==0) {
//curtains
        forward = vector(0,0,-1);
        up = vector(0,roomHeight,0);
        right = vector(roomWidth,0,0);
        pN = vector(roomWidth,0.5,roomDepth);
}
        
        

    //getattribute("camera:pixelaspect", pa);
    //getattribute("camera:resolution", res);
    //float aspect = pa * res[1] / res[0] * n;

    dir = forward;
    pos = pN+(nu*right)+(nv*up);
}