1 files changed, 34 insertions, 2 deletions

diff --git a/renderer.cpp b/renderer.cpp
index cc7cc6d..d8c4895 100644
--- a/renderer.cpp
+++ b/renderer.cpp
@@ -9,6 +9,12 @@ struct VP_Cbuffer {
 	m4f view_projection;
 };
 
+struct Global_Cbuffer {
+	v3f camera_pos;
+	int light_count;
+	int frame;
+};
+
 void init_drawlist(
 	Drawlist* l,
 	Device* d,
@@ -40,12 +46,20 @@ void Renderer::init(Arena* arena, Device* d) {
 		id(i, 512);
 	camera_count = 1;
 	cameras.init();
+	globals.init(
+		d,
+		"Renderer globals",
+		sizeof(Global_Cbuffer),
+		Buffer_Flags::constant_buffer
+	);
+	frame = 0;
 }
 
 void Renderer::destroy(Device* d) {
 	int i;
 	for (i = 0; i < drawlist_count; i++)
 		drawlists[i].vp.destroy(d);
+	globals.destroy(d);
 }
 
 void Renderer::set_camera(Camera_Id cam, int drawlist) {
@@ -70,22 +84,39 @@ void Drawlist::render(
 	res.sampler = r.clamped_linear;
 	res.env_cubemap = r.env_cubemap;
 	res.vp = vp.gpuonly;
+	res.globals = r.globals.gpuonly;
 	res.overrider = overrider;
 	for (i = 0; i < c; i++) {
 		models[i]->render(dev, a, pass, l, res);
 	}
 }
 
+void Renderer::update_globals(
+	const Lighting* l,
+	Device* d,
+	Context& ctx
+) {
+	void* ptr = globals.map(d);
+	Global_Cbuffer* cb = (Global_Cbuffer*)ptr;
+	v3f& cp = get_camera(drawlists[FORWARD].camera).position;
+	cb->camera_pos = cp;
+	cb->frame = frame;
+	cb->light_count = l->light_count;
+	globals.unmap(d);
+	globals.update(ctx);
+}
+
 void Renderer::render(
 	Device* dev,
-	Arena* a,
-	Texture_Id hdr_target,
+	Arena* a, Texture_Id hdr_target,
 	const Lighting* l
 ) {
 	int i, j;
 	Pipeline_Builder pb(a, dev);
 	Context& ctx = dev->get_ctx();
 
+	update_globals(l, dev, ctx);
+
 	Render_Pass& depth_prepass = pb
 		.begin_rp()
 		.rp_depth_target(dev->get_depth_target(), 1.0f)
@@ -126,6 +157,7 @@ void Renderer::render(
 	ctx.debug_push("forward");
 	drawlists[FORWARD].render(*this, dev, a, l, forward_pass, 0);
 	ctx.debug_pop();
+	frame++;
 }
 
 void Renderer::add_model(int drawlist, Model_Instance* m) {