public virtual void Recompute(float t)
{
var p = position.Evaluate(t);
var s = scale.Evaluate(t);
var q = orientation.Evaluate(t);
WorldMatrix = mat4.Translate(p) * q.ToMat4 * mat4.Scale(s);
}
public void Recompute(float t)
{
colorField.Evaluate(t);
var p = positionField.Evaluate(t);
var s = scaleField.Evaluate(t);
var q = orientationField.Evaluate(t);
// By shifting the world matrix using the origin, all sprites using the same source rect and alignment
// (regardless of transform) can be rendered using the same quad in GPU memory. This is most applicable to
// 3D sprites that don't use a source rect at all (since they can all use the same unit square).
var v = new vec3(correction / PixelDivisor, 0);
WorldMatrix = mat4.Translate(p) * q.ToMat4 * mat4.Translate(v) * mat4.Scale(new vec3(s, 0));
}
