X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fmaterials%2Flight.cpp;h=3d3cba0a87127116068aa85900e24656e1f83841;hb=a275d25eccad43716c5dcf91f8bc4af2a53c0445;hp=d84be2ac8dcc1a8542212df87c6f8063aebbaed2;hpb=615f1717f32064a7adb2b848e8646c2c3cf11f61;p=libs%2Fgl.git

diff --git a/source/materials/light.cpp b/source/materials/light.cpp
index d84be2ac..3d3cba0a 100644
--- a/source/materials/light.cpp
+++ b/source/materials/light.cpp
@@ -12,10 +12,12 @@ namespace GL {
 
 Light::Light():
 	color(1),
+	transmittance(1),
 	position(0, 0, 1, 0),
 	spot_dir(0, 0, -1),
 	spot_exp(0),
-	spot_cutoff(Geometry::Angle<float>::straight())
+	spot_cutoff(Geometry::Angle<float>::straight()),
+	generation(0)
 {
 	attenuation[0] = 1;
 	attenuation[1] = 0;
@@ -42,6 +44,13 @@ void Light::update_matrix()
 void Light::set_color(const Color &c)
 {
 	color = c;
+	++generation;
+}
+
+void Light::set_transmittance(const Color &t)
+{
+	transmittance = t;
+	++generation;
 }
 
 void Light::set_matrix(const Matrix &m)
@@ -51,6 +60,7 @@ void Light::set_matrix(const Matrix &m)
 	spot_dir = normalize(-matrix.column(2).slice<3>(0));
 	direction = (position.w ? spot_dir : normalize(-position.slice<3>(0)));
 	update_matrix();
+	++generation;
 }
 
 void Light::set_position(const Vector4 &p)
@@ -59,6 +69,7 @@ void Light::set_position(const Vector4 &p)
 	if(!position.w)
 		direction = normalize(-position.slice<3>(0));
 	update_matrix();
+	++generation;
 }
 
 void Light::set_spot_direction(const Vector3 &d)
@@ -67,6 +78,7 @@ void Light::set_spot_direction(const Vector3 &d)
 	if(position.w)
 		direction = spot_dir;
 	update_matrix();
+	++generation;
 }
 
 void Light::set_spot_exponent(float e)
@@ -75,6 +87,7 @@ void Light::set_spot_exponent(float e)
 		throw invalid_argument("Light::set_spot_exponent");
 
 	spot_exp = e;
+	++generation;
 }
 
 void Light::set_spot_cutoff(const Geometry::Angle<float> &c)
@@ -83,11 +96,13 @@ void Light::set_spot_cutoff(const Geometry::Angle<float> &c)
 		throw invalid_argument("Light::set_spot_cutoff");
 
 	spot_cutoff = c;
+	++generation;
 }
 
 void Light::disable_spot_cutoff()
 {
 	set_spot_cutoff(Geometry::Angle<float>::straight());
+	++generation;
 }
 
 void Light::set_attenuation(float c, float l, float q)
@@ -95,13 +110,15 @@ void Light::set_attenuation(float c, float l, float q)
 	attenuation[0] = c;
 	attenuation[1] = l;
 	attenuation[2] = q;
+	++generation;
 }
 
-void Light::update_shader_data(ProgramData &shdata, const Matrix &view_matrix, unsigned i) const
+void Light::update_shader_data(ProgramData &shdata, unsigned i) const
 {
 	string base = format("light_sources[%d]", i);
-	shdata.uniform(base+".position", view_matrix*position);
-	shdata.uniform(base+".color", color.r, color.g, color.b);
+	shdata.uniform(base+".position", position);
+	shdata.uniform(base+".color", color.r*transmittance.r, color.g*transmittance.g, color.b*transmittance.b);
+	shdata.uniform(base+".enabled", 1);
 }