public override void OnRenderFrame(float deltaTime)
{
// if (msaa) Gl.Enable(EnableCap.Multisample);
// else Gl.Disable(EnableCap.Multisample);
// apply our camera view matrix to the shader view matrix (this can be used for all objects in the scene)
Gl.UseProgram(program);
program["view_matrix"].SetValue(TheCamera.ViewMatrix);
// program["model_matrix"].SetValue(Matrix4.Identity);
program["enable_lighting"].SetValue(theEnvironment.Lighting);
if (theEnvironment.LightMove)
{
theEnvironment.LightDirection = theEnvironment.LightDirection * Matrix4.CreateRotationY(deltaTime);
program["light_direction"].SetValue(theEnvironment.LightDirection);
}
if (thePathVector3 != null)
{
ObjPath tempObjPath = new ObjPath("Path", thePathVector3,
new Vector3[] { thePathVector3[0], thePathVector3.Last() })
{
LineMaterial = materialPoint,
MarkerMaterial = materialLineMarker
};
thePaths.AddObject(tempObjPath);
thePathVector3 = null;
}
// now draw the object file
// if (wireframe) Gl.PolygonMode(MaterialFace.FrontAndBack, PolygonMode.Line);
if (wireframe)
{
Gl.PolygonMode(MaterialFace.FrontAndBack, PolygonMode.Line);
}
if (objMeshs != null)
{
foreach (IObjGroup anObjMesh in objMeshs)
{
anObjMesh.Draw();
}
}
// Reset the model matrix
program["model_matrix"].SetValue(Matrix4.Identity);
if (true)
{
// Draw a small test grid
double delta = 5;
double z = 0.1;
Gl.PointSize(10);
// For some reason EnableCap.PointSmooth = ((int)0x0B10), was commented out in OpenGL4CSharp.
Gl.Enable(EnableCap.PointSmooth);
// shift the mouse point a bit toward the camera
Vector3 mousePoint = MouseWorld + ((TheCamera.Position - MouseWorld).Normalize()) * 0.01f;
Vector3[] vertexData = new[]
{
mousePoint, new Vector3(0, 0, z),
new Vector3(delta, z, delta), new Vector3(0, z, delta), new Vector3(delta, z, 0),
};
VBO <Vector3> vertices = new VBO <Vector3>(vertexData);
if (materialPoint != null)
{
materialPoint.Use();
}
Gl.BindBufferToShaderAttribute(vertices, program, "vertexPosition");
Gl.DrawElements(BeginMode.Points, vertices.Count, DrawElementsType.UnsignedInt, IntPtr.Zero);
vertices.Dispose();
vertices = null;
}
// if (theRenderGameObjects != null)
// {
// foreach (ObjGameObject renderGameObject in theRenderGameObjects)
// {
// renderGameObject.Draw(program);
// }
// Gl.BindBuffer(BufferTarget.ElementArrayBuffer, 0);
// Gl.BindBuffer(BufferTarget.ArrayBuffer, 0);
// Gl.UseProgram(0);
// }
if (UseObjMap)
{
objTileMap.Draw();
}
}
