コード例 #1
0
ファイル: RotationMatrix.cs プロジェクト: Debug-/gtadotnet
        public static RotationMatrix Multiply(RotationMatrix left, RotationMatrix right)
        {
            RotationMatrix result = new RotationMatrix();
            result.M00 = (left.M00 * right.M00) + (left.M01 * right.M10) + (left.M02 * right.M20);
            result.M01 = (left.M00 * right.M01) + (left.M01 * right.M11) + (left.M02 * right.M21);
            result.M02 = (left.M00 * right.M02) + (left.M01 * right.M12) + (left.M02 * right.M22);

            result.M10 = (left.M10 * right.M00) + (left.M11 * right.M10) + (left.M12 * right.M20);
            result.M11 = (left.M10 * right.M01) + (left.M11 * right.M11) + (left.M12 * right.M21);
            result.M12 = (left.M10 * right.M02) + (left.M11 * right.M12) + (left.M12 * right.M22);

            result.M20 = (left.M20 * right.M00) + (left.M21 * right.M10) + (left.M22 * right.M20);
            result.M21 = (left.M20 * right.M01) + (left.M21 * right.M11) + (left.M22 * right.M21);
            result.M22 = (left.M20 * right.M02) + (left.M21 * right.M12) + (left.M22 * right.M22);

            return result;

            // this code was before I remembered matrix multiplication is hard.
            /*RotationMatrix m = new RotationMatrix();
            m.M00 = m1.M00 * m2.M00;
            m.M01 = m1.M01 * m2.M01;
            m.M02 = m1.M02 * m2.M02;

            m.M10 = m1.M10 * m2.M10;
            m.M11 = m1.M11 * m2.M11;
            m.M12 = m1.M12 * m2.M12;

            m.M20 = m1.M20 * m2.M20;
            m.M21 = m1.M21 * m2.M21;
            m.M22 = m1.M22 * m2.M22;

            return m;*/
        }
コード例 #2
0
        public static RotationMatrix Multiply(RotationMatrix left, RotationMatrix right)
        {
            RotationMatrix result = new RotationMatrix();

            result.M00 = (left.M00 * right.M00) + (left.M01 * right.M10) + (left.M02 * right.M20);
            result.M01 = (left.M00 * right.M01) + (left.M01 * right.M11) + (left.M02 * right.M21);
            result.M02 = (left.M00 * right.M02) + (left.M01 * right.M12) + (left.M02 * right.M22);

            result.M10 = (left.M10 * right.M00) + (left.M11 * right.M10) + (left.M12 * right.M20);
            result.M11 = (left.M10 * right.M01) + (left.M11 * right.M11) + (left.M12 * right.M21);
            result.M12 = (left.M10 * right.M02) + (left.M11 * right.M12) + (left.M12 * right.M22);

            result.M20 = (left.M20 * right.M00) + (left.M21 * right.M10) + (left.M22 * right.M20);
            result.M21 = (left.M20 * right.M01) + (left.M21 * right.M11) + (left.M22 * right.M21);
            result.M22 = (left.M20 * right.M02) + (left.M21 * right.M12) + (left.M22 * right.M22);

            return(result);

            // this code was before I remembered matrix multiplication is hard.

            /*RotationMatrix m = new RotationMatrix();
             * m.M00 = m1.M00 * m2.M00;
             * m.M01 = m1.M01 * m2.M01;
             * m.M02 = m1.M02 * m2.M02;
             *
             * m.M10 = m1.M10 * m2.M10;
             * m.M11 = m1.M11 * m2.M11;
             * m.M12 = m1.M12 * m2.M12;
             *
             * m.M20 = m1.M20 * m2.M20;
             * m.M21 = m1.M21 * m2.M21;
             * m.M22 = m1.M22 * m2.M22;
             *
             * return m;*/
        }
コード例 #3
0
        public static RotationMatrix RotateX(float degrees)
        {
            float radians = (float)(degrees * (Math.PI / 180));

            RotationMatrix matrix = new RotationMatrix();

            matrix.M00 = 1;
            matrix.M01 = 0;
            matrix.M02 = 0;

            matrix.M10 = 0;
            matrix.M11 = (float)Math.Cos(radians);
            matrix.M12 = -((float)Math.Sin(radians));

            matrix.M20 = 0;
            matrix.M21 = (float)Math.Sin(radians);
            matrix.M22 = (float)Math.Cos(radians);

            return(matrix);
        }
コード例 #4
0
ファイル: RotationMatrix.cs プロジェクト: Debug-/gtadotnet
        public static RotationMatrix RotateZ(float degrees)
        {
            float radians = (float)(degrees * (Math.PI / 180));

            RotationMatrix matrix = new RotationMatrix();
            matrix.M00 = (float)Math.Cos(radians);
            matrix.M01 = 0;
            matrix.M02 = (float)Math.Sin(radians);

            matrix.M10 = 0;
            matrix.M11 = 1;
            matrix.M12 = 0;

            matrix.M20 = -((float)Math.Sin(radians));
            matrix.M21 = 0;
            matrix.M22 = (float)Math.Cos(radians);

            return matrix;
        }
コード例 #5
0
 public static RotationMatrix Rotate(float x, float y, float z)
 {
     return(RotationMatrix.RotateX(x) * RotationMatrix.RotateY(y) * RotationMatrix.RotateZ(z));
 }