public void RenderAmbientColor(BlinnPhongAmbientEventArgs arg)
{
ICamera camera = arg.Camera;
mat4 projection = camera.GetProjectionMatrix();
mat4 view = camera.GetViewMatrix();
mat4 model = this.GetModelMatrix();
RenderMethod method = this.RenderUnit.Methods[0];
ShaderProgram program = method.Program;
program.SetUniform("mvpMat", projection * view * model);
program.SetUniform("ambientColor", arg.Ambient);
method.Render();
}
/// <summary>
///
/// </summary>
/// <param name="arg"></param>
public void RenderBeforeChildren(RenderEventArgs arg)
{
GL.Instance.ClearStencil(0x0);
GL.Instance.Clear(GL.GL_STENCIL_BUFFER_BIT); // this seems not working. I don't know why.(2017-12-13)
GL.Instance.Enable(GL.GL_STENCIL_TEST);
GL.Instance.StencilFunc(GL.GL_ALWAYS, 0, 0xFF);
GL.Instance.StencilOp(GL.GL_REPLACE, GL.GL_REPLACE, GL.GL_REPLACE);
GL.Instance.StencilMask(0xFF);
//GL.Instance.DepthMask(false);
//GL.Instance.ColorMask(false, false, false, false);
RenderMethod method = this.RenderUnit.Methods[0];
method.Render();
//GL.Instance.ColorMask(true, true, true, true);
//GL.Instance.DepthMask(true);
}
public void RenderBeforeChildren(RenderEventArgs arg)
{
// gets mvpMat.
ICamera camera = arg.Camera;
mat4 projectionMat = camera.GetProjectionMatrix();
mat4 viewMat = camera.GetViewMatrix();
mat4 modelMat = this.GetModelMatrix();
mat4 mvpMat = projectionMat * viewMat * modelMat;
// a render uint wraps everything(model data, shaders, glswitches, etc.) for rendering.
ModernRenderUnit unit = this.RenderUnit;
// gets render method.
// There could be more than 1 method(vertex shader + fragment shader) to render the same model data. Thus we need an method array.
RenderMethod method = unit.Methods[0];
// shader program wraps vertex shader and fragment shader.
ShaderProgram program = method.Program;
//set value for 'uniform mat4 mvpMat'; in shader.
program.SetUniform("mvpMat", mvpMat);
// render the cube model via OpenGL.
method.Render();
}