// This file contains declared uniform and part attributes
// needed for all MetarealObject things. It's the spatial, 3d part,
// so that multiple materials will align dimensionally.
//
// This is included by the Vertex Shaders.

uniform float yRatio; // height/width
uniform float eyePos;
uniform mat4 cameraMatrix;

uniform float zNear = 0.1;
uniform float zFar = 500.0;


in vec3 pos;

// part attrs
uniform sampler2D partValues;

uniform float partIndex_translate; // vec4 as x, y, z, scale
uniform float partIndex_rotate;    // quaternion

in float partSlot;

out vec3 modelPosV; // raw model coordinates, xyz as given
out vec3 worldPosV; // model coordinates after part transformation
out vec3 viewPosV; // model coordinates relative to camera


vec3 rotateByQuaternion(vec3 p, vec4 q)
{
    return p + 2.0 * cross(q.xyz, cross(q.xyz, p) + q.w * p);
}