protected void ResizeViewTo(GLTextuer2D inc, GLTextuer2D o, int owidth, int oheight, int nwidth, int nheight)
{
float wp = (float)nwidth / (float)owidth;
float hp = (float)nheight / (float)oheight;
float fp = wp < hp ? wp : hp;
Matrix4 proj = Matrix4.CreateOrthographic(nwidth, nheight, 0.03f, 1000f);
Matrix4 translation = Matrix4.CreateTranslation(0, 0, 0);
//half width/height for scale as it is centered based
Matrix4 sm = Matrix4.CreateScale(fp * (float)(owidth * 0.5f), -fp * (float)(oheight * 0.5f), 1);
Matrix4 model = sm * translation;
Matrix4 view = Matrix4.LookAt(new Vector3(0, 0, 1), Vector3.Zero, Vector3.UnitY);
resizeProcessor.Model = model;
resizeProcessor.View = view;
resizeProcessor.Projection = proj;
resizeProcessor.Bind(inc);
if (renderQuad != null)
{
renderQuad.Draw();
}
resizeProcessor.Unbind();
o.Bind();
o.CopyFromFrameBuffer(nwidth, nheight);
GLTextuer2D.Unbind();
}
protected void ApplyTransformNoAuto(GLTextuer2D inc, GLTextuer2D o, int owidth, int oheight, MVector translation, MVector scale, float angle, MVector pivot)
{
Matrix4 proj = Matrix4.CreateOrthographic(owidth, oheight, 0.03f, 1000f);
Matrix4 pTrans = Matrix4.CreateTranslation(-pivot.X, -pivot.Y, 0);
Matrix4 iPTrans = Matrix4.CreateTranslation(pivot.X, pivot.Y, 0);
Matrix4 trans = Matrix4.CreateTranslation(translation.X, translation.Y, 0);
Matrix4 sm = Matrix4.CreateScale(scale.X, scale.Y, 1);
Matrix4 rot = Matrix4.CreateRotationZ(angle);
Matrix4 model = pTrans * sm * rot * iPTrans * trans;
Matrix4 view = Matrix4.LookAt(new Vector3(0, 0, 1), Vector3.Zero, Vector3.UnitY);
IGL.Primary.Viewport(0, 0, owidth, oheight);
resizeProcessor.Model = model;
resizeProcessor.View = view;
resizeProcessor.Projection = proj;
resizeProcessor.Luminosity = Luminosity;
resizeProcessor.Bind(inc);
inc.ClampToEdge();
if (renderQuad != null)
{
renderQuad.Draw();
}
inc.Repeat();
resizeProcessor.Unbind();
o.Bind();
o.Repeat();
GLTextuer2D.Unbind();
Blit(o, owidth, oheight);
/*o.Bind();
* o.Repeat();
* o.CopyFromFrameBuffer(owidth, oheight);
* GLTextuer2D.Unbind();*/
}