merge branch

Author: ZzzhHe

libopenage/presenter/presenter.cpp

@@ -319,6 +319,31 @@ void Presenter::init_final_render_pass() {
 	});
 }
 
+void Presenter::init_stencil_test() {
+	glEnable(GL_STENCIL_TEST);
+	glStencilOp(GL_KEEP, GL_KEEP, GL_REPLACE);
+	glClear(GL_STENCIL_BUFFER_BIT);
+}
+
+void Presenter::enable_stencil_for_gui_mask() {
+	// Replace stencil value with 1 when depth test passes
+	glStencilFunc(GL_ALWAYS, 1, 0xFF);
+	glStencilMask(0xFF);
+	glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
+}
+
+void Presenter::enable_stencil_for_world() {
+	// Only pass if stencil value is not 1
+	glStencilFunc(GL_NOTEQUAL, 1, 0xFF);
+	glStencilMask(0x00);
+	glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
+}
+
+void Presenter::disable_stencil() {
+	glDisable(GL_STENCIL_TEST);
+	glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
+}
+
 void Presenter::render() {
 	// TODO: Pass current time to update() instead of fetching it in renderer
 	this->camera_manager->update();