void glCanvas1_OpenGLDraw(object sender, PaintEventArgs e)
{
GL.ClearColor(0x87 / 255.0f, 0xce / 255.0f, 0xeb / 255.0f, 0xff / 255.0f);
GL.Clear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);
var arg = new RenderEventArgs(RenderModes.Render, this.camera);
element.Render(arg);
}
void glCanvas1_OpenGLDraw(object sender, PaintEventArgs e)
{
GL.Clear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);
var arg = new RenderEventArgs(RenderModes.Render, this.camera);
mat4 projectionMatrix = camera.GetProjectionMat4();
mat4 viewMatrix = camera.GetViewMat4();
mat4 modelMatrix = mat4.identity();
mat4 mvp = projectionMatrix * viewMatrix * modelMatrix;
element.mvp = mvp;
element.Render(arg);
}