Add channel blending

components/streams/src/renderers/openvr_render.cpp

@@ -206,6 +206,9 @@ bool OpenVRRender::retrieve(ftl::data::Frame &frame_out) {
 			left = ftl::rgbd::Camera::from(intrinsics_);
 			right = ftl::rgbd::Camera::from(intrinsics_);
 
+			left.baseline = baseline_;
+			right.baseline = baseline_;
+			
 			unsigned int size_x, size_y;
 			HMD->GetRecommendedRenderTargetSize(&size_x, &size_y);
 			left.width = size_x;

components/streams/src/renderers/screen_render.cpp

@@ -138,6 +138,12 @@ bool ScreenRender::retrieve(ftl::data::Frame &frame_out) {
 
 			if (!data_only) renderer_->render();
 
+			// Blend another channel
+			int blend_channel = host_->value("blend_channel",0);
+			if (blend_channel > 0) {
+				if (!data_only) renderer_->blend(static_cast<Channel>(blend_channel));
+			}
+
 			// Now do CPU-based render jobs
 			for (auto &s : sets) {
 				if (s->frameset() == my_id_) continue;  // Skip self