X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Frenderer.cpp;h=c744ac5a825009f588c305657f7938daf97b7178;hb=0807680edd94a7f14560831db4dd52e4e48d0d19;hp=e57967d9c46b227c5a9bad4da50c7af1320b1864;hpb=d4c9b1ef7ba7a60874ffa7ab2ac4b427a83910e5;p=libs%2Fgl.git

diff --git a/source/renderer.cpp b/source/renderer.cpp
index e57967d9..c744ac5a 100644
--- a/source/renderer.cpp
+++ b/source/renderer.cpp
@@ -33,6 +33,8 @@ Renderer::Renderer(const Camera *c):
 
 	if(c)
 		set_camera(*c);
+	else
+		standard_shdata.uniform("projection_matrix", Matrix());
 }
 
 Renderer::~Renderer()
@@ -166,12 +168,19 @@ void Renderer::pop_state()
 	}
 	shdata_applied = min<unsigned>(shdata_applied, shdata_stack.size());
 	changed |= MATRIX;
-	if(state->camera!=old_camera)
+	bool camera_changed = (state->camera!=old_camera);
+	if(camera_changed)
 	{
-		standard_shdata.uniform("projection_matrix", state->camera->get_projection_matrix());
+		if(state->camera)
+			standard_shdata.uniform("projection_matrix", state->camera->get_projection_matrix());
+		else
+			standard_shdata.uniform("projection_matrix", Matrix());
 		changed |= STANDARD_SHDATA|LEGACY_PROJECTION;
 	}
-	if(state->lighting!=old_lighting)
+	/* This actually should compare the relevant matrices rather than check for
+	camera, but in practice lighting and clipping is set right after the camera
+	and a boolean check is much faster than matrix comparison. */
+	if(state->lighting!=old_lighting || camera_changed)
 	{
 		if(state->lighting)
 		{
@@ -180,7 +189,7 @@ void Renderer::pop_state()
 		}
 		changed |= LEGACY_LIGHTING;
 	}
-	if(state->clipping!=old_clipping)
+	if(state->clipping!=old_clipping || camera_changed)
 	{
 		if(state->clipping)
 		{