public static void DrawCone(Matrix4F xform, Color color)
{
Matrix4F transposeOfInverse = new Matrix4F(xform);
transposeOfInverse.Transpose(transposeOfInverse);
transposeOfInverse.Invert(transposeOfInverse);
GameEngine.DrawIndexedPrimitive(PrimitiveType.TriangleList,
s_coneVertId,
s_coneIndexId,
0,
s_coneIndexCount,
0,
color,
xform,
RenderFlag);
}
public void SetProjection(float fov, float aspect, float hither, float yon, int width, int height)
{
nearClip = hither;
farClip = yon;
// compute projectionMatrix
float s = 1.0f / (float)System.Math.Tan(fov / 2.0f);
float fracHeight = 1.0f - (float)height / (float)height;
projection.M11 = s;
projection.M22 = (1.0f - fracHeight) * s * (float)width / (float)height;
projection.M31 = 0.0f;
projection.M32 = -fracHeight;
projection.M33 = -(yon + hither) / (yon - hither);
projection.M34 = -1.0f;
projection.M41 = 0.0f;
projection.M43 = -2.0f * yon * hither / (yon - hither);
projection.M44 = 0.0f;
projection.Transpose();
BuildFrustum();
}
/// <summary>
/// Transforms this frustum by the given matrix</summary>
/// <param name="m">Transformation matrix. Can be a nearly-general transform and include non-uniform
/// scaling and shearing.</param>
public void Transform(Matrix4F m)
{
Matrix4F transposeOfInverse = new Matrix4F(m);
transposeOfInverse.Invert(transposeOfInverse);
transposeOfInverse.Transpose(transposeOfInverse);
for (int i = 0; i < 6; i++)
{
m.Transform(m_planes[i], transposeOfInverse, out m_planes[i]);
}
}
//public static void Convert( ref OgreMatrix4 mat, out Mat4 result )
//{
// result = new Mat4( mat.mat0, mat.mat1, mat.mat2, mat.mat3 );
// result.Transpose();
//}
public static unsafe void Convert(OgreMatrix4 *mat, out Matrix4F result)
{
result = new Matrix4F(mat->mat0, mat->mat1, mat->mat2, mat->mat3);
result.Transpose();
}
public static void DrawCone(Matrix4F xform, Color color)
{
Matrix4F transposeOfInverse = new Matrix4F(xform);
transposeOfInverse.Transpose(transposeOfInverse);
transposeOfInverse.Invert(transposeOfInverse);
GameEngine.DrawIndexedPrimitive(PrimitiveType.TriangleList,
s_coneVertId,
s_coneIndexId,
0,
s_coneIndexCount,
0,
color,
xform,
RenderFlag);
}
