Probe the maximal number of OpenGL lights.

2 files changed, 9 insertions, 0 deletions

diff --git a/src/render/state.cc b/src/render/state.cc
index 06156a1..5f026f0 100644
--- a/src/render/state.cc
+++ b/src/render/state.cc
@@ -22,6 +22,7 @@ float	State::state_aspect = 0;
 bool	State::state_has_generate_mipmaps = false;
 bool	State::state_has_vbo = false;
 GLuint	State::state_vbo = 0;
+int	State::state_maxlights;
 
 	
 math::Color	State::state_color_primary;
@@ -95,6 +96,10 @@ void State::init(int width, int height)
 	else
 		con_print << "disabled" << std::endl;
 
+	// probe maximal number of lights
+	glGetIntegerv(GL_MAX_LIGHTS, &state_maxlights);
+	con_debug << "  maximum number of OpenGL lights is " << state_maxlights << std::endl;
+	
 	// Generate VBO
 	if (state_has_vbo)
 		gl::genbuffers(1, &state_vbo);
diff --git a/src/render/state.h b/src/render/state.h
index 2ba7c32..cda64d5 100644
--- a/src/render/state.h
+++ b/src/render/state.h
@@ -101,6 +101,9 @@ public:
 	inline static GLuint vbo() {
 		return state_vbo;
 	}
+	inline static int max_lights() {
+		return state_maxlights;
+	}
 
 	static void set_normalize(const bool enable=true);
 	
@@ -112,6 +115,7 @@ private:
 	static bool	state_has_generate_mipmaps;
 	static bool	state_has_vbo;
 	static GLuint	state_vbo;
+	static int	state_maxlights;
 	
 	static math::Color	state_color_primary;	// current primary color
 	static math::Color	state_color_secondary;	// current secondary color