Example #1
0
        public override Color32 Value(Vector3 dir)
        {
            float theta       = Mathf.Atan2(dir.z, dir.x);
            float phi         = Mathf.Acos(dir.y);
            var   m_direction = 0;

            theta += m_direction * Mathf.PI / 180.0f;
            while (theta < -Mathf.PI)
            {
                theta += Mathf.PI + Mathf.PI;
            }
            while (theta > Mathf.PI)
            {
                theta -= Mathf.PI + Mathf.PI;
            }

            float dx = theta / Mathf.PI;
            float dy = phi / Mathf.PI;

            dx = dx * 0.5f + 0.5f;
            int px = (int)(dx * src.w);

            if (px < 0)
            {
                px = 0;
            }
            if (px >= src.w)
            {
                px = src.w - 1;
            }
            int py = (int)(dy * src.w);

            if (py < 0)
            {
                py = 0;
            }
            if (py >= src.w)
            {
                py = src.w - 1;
            }

            Color32 col = src.Value(px, src.w - py - 1, Vector3.zero);

            return(col);
        }
Example #2
0
 public override Color32 Shade(Vertex p) => texture.Value(p.uv.X, p.uv.Y, Vector3.One);