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mattebb/pano.vex.c

Last active August 29, 2015 14:17
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Mantra stereo pano camera lens shader (wip)
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pano.vex.c
float theta = -$PI * x;
float phi = $PI * 0.5 * y;
float sin_theta = sin(theta);
float cos_theta = cos(theta);
float sin_phi = sin(phi);
float cos_phi = cos(phi);
i.z = sin_theta * cos_phi;
i.y = sin_phi;
i.x = cos_theta * cos_phi;
if (eye == 0) {
p.z = -0.5 * ipd * cos_theta * cos_phi;
p.x = -0.5 * ipd * sin_theta * cos_phi;
} else {
p.z = 0.5 * ipd * cos_theta * cos_phi;
p.x = 0.5 * ipd * sin_theta * cos_phi;
}
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mattebb commented Mar 26, 2015

Notes:
https://support.solidangle.com/display/mayatut/Creating+the+Stereoscopic+Panoramic+Camera
http://www.sidefx.com/docs/houdini14.0/props/mantra#lensshader

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