private void DoRender(vec3 lineColor)
{
polygonModeState.On();
GL.Instance.Begin((uint)DrawMode.Quads);
GL.Instance.Color3f(lineColor.x, lineColor.y, lineColor.z);
for (int i = 0; i < indexes.Length; i++)
{
vec3 position = positions[indexes[i]];
GL.Instance.Vertex3f(position.x, position.y, position.z);
}
GL.Instance.End();
polygonModeState.Off();
}
public void RenderBeforeChildren(RenderEventArgs arg)
{
if (!this.IsInitialized)
{
this.Initialize();
}
this.RotationAngle += this.RotateSpeed;
ICamera camera = arg.Camera;
mat4 projection = camera.GetProjectionMatrix();
mat4 view = camera.GetViewMatrix();
mat4 model = this.GetModelMatrix();
var method = this.RenderUnit.Methods[0]; // the only render unit in this node.
ShaderProgram program = method.Program;
program.SetUniform(projectionMatrix, projection);
program.SetUniform(viewMatrix, view);
program.SetUniform(modelMatrix, model);
if (this.RenderWireframe)
{
// render wireframe.
program.SetUniform("renderWireframe", true);
polygonMode.On();
polygonOffsetState.On();
method.Render();
polygonOffsetState.Off();
polygonMode.Off();
}
if (this.RenderBody)
{
// render solid body.
program.SetUniform("renderWireframe", false);
method.Render();
}
}