protected override void OnTimerTick(object sender, EventArgs e)
{
if (!isGLInit)
{
return;
}
float dt = 0.5f;
mRotation = (float)fmod(mRotation + (dt * 40.0f), 360.0f);
//Matrix4 perspectiveMatrix = Matrix4::perspective(60.0f, float(getWindow()->getWidth()) / getWindow()->getHeight(),
// 1.0f, 20.0f);
MyMat4 perspectiveMat = MyMat4.perspective(60.0f, (float)Width / (float)Height, 1.0f, 20.0f);
//Matrix4 modelMatrix = Matrix4::translate(Vector3(0.0f, 0.0f, -2.0f)) *
// Matrix4::rotate(mRotation, Vector3(1.0f, 0.0f, 1.0f));
MyMat4 modelMat = MyMat4.translate(new Vector3(0f, 0f, -2f)) *
MyMat4.rotate(mRotation, new Vector3(1, 0, 1));
MyMat4 viewMatrix = MyMat4.GetIdentityMat();
MyMat4 mvpMatrix = perspectiveMat * viewMatrix * modelMat;
//// Load the matrices
//glUniformMatrix4fv(mMVPMatrixLoc, 1, GL_FALSE, mvpMatrix.data);
GL.UniformMatrix4(mMVPMatrixLoc, 1, false, mvpMatrix.data);
}
public SimpleCanvas(int view_width, int view_height)
{
FillColor = Color.Black;
StrokeColor = Color.Black;
//dimension
_view_width = view_width;
_view_height = view_height;
_max = Math.Max(view_width, view_height);
//------------
//matrix
////square viewport
_orthoView = MyMat4.ortho(0, _max, 0, _max, 0, 1);
_flipVerticalView = MyMat4.scale(1, -1) * MyMat4.translate(new OpenTK.Vector3(0, -_max, 0));
_orthoAndFlip = _orthoView * _flipVerticalView;
//-----------------------------------------------------------------------
//shader
_shaderRes = new CanvasToShaderSharedResource();
_shaderRes.OrthoView = _orthoView;
//
_fillShader = new GlyphFillShader(_shaderRes);
//------------
//tools
Tesselate.Tesselator tt = new Tesselate.Tesselator();
_tessTool = new TessTool(tt);
_curveFlattener = new SimpleCurveFlattener();
ClearColor = Color.White;
//--------
//set blend mode
GL.Enable(EnableCap.Blend);
GL.BlendFunc(BlendingFactorSrc.SrcAlpha, BlendingFactorDest.OneMinusSrcAlpha);
}