minimize opengl transformation matrix by doing eye-location in software

1 files changed, 9 insertions, 9 deletions

diff --git a/src/render/draw.cc b/src/render/draw.cc
index 4399c60..13f9ee6 100644
--- a/src/render/draw.cc
+++ b/src/render/draw.cc
@@ -527,7 +527,7 @@ void draw_pass_default()
 		// draw entities without model
 		if (!entity->model()) {
 			gl::push();
-			gl::translate(entity->state()->location());
+			gl::translate(entity->state()->location() - Camera::eye());
 			gl::multmatrix(entity->state()->axis());
 
 			if (flag_is_set(entity->flags(), core::Entity::Bright)) {
@@ -568,7 +568,7 @@ void draw_pass_default()
 			gl::color(entity->color());
 
 			gl::push();
-			gl::translate(entity->state()->location());
+			gl::translate(entity->state()->location() - Camera::eye());
 			gl::multmatrix(entity->state()->axis());
 			
 			// top
@@ -612,7 +612,7 @@ void draw_pass_model_fragments()
 
 		if (entity->model() && entity->state()->visible()) {
 			gl::push();
-			gl::translate(entity->state()->location());
+			gl::translate(entity->state()->location()  - Camera::eye());
 			gl::multmatrix(entity->state()->axis());
 
 			draw_model_fragments(entity);
@@ -661,7 +661,7 @@ void draw_pass_model_fx(float elapsed)
 					t = (core::application()->time() + entity->state()->fuzz() - light->offset()) * light->frequency();
 
 				if ((!light->strobe()) || (( t - floorf(t)) <= light->time())) {
-					location.assign(entity->state()->location() + (entity->state()->axis() * light->location()));
+					location.assign(entity->state()->location()  - Camera::eye() + (entity->state()->axis() * light->location()));
 					light_size = 0.0625 * light->radius();
 	
 					if (flare_texture != light->texture()) {
@@ -708,7 +708,7 @@ void draw_pass_model_fx(float elapsed)
 					if (flare->angle())
 						flare_axis.change_direction(flare->angle());
 
-					location.assign(entity->state()->location() + (entity->state()->axis() * flare->location()));
+					location.assign(entity->state()->location()  - Camera::eye() + (entity->state()->axis() * flare->location()));
 					light_size = 0.0625 * flare->radius();
 	
 					if (flare_texture != flare->texture()) {
@@ -762,7 +762,7 @@ void draw_pass_model_fx(float elapsed)
 	
 						model::Engine *engine = (*eit);
 	
-						location.assign(entity->state()->location() + (entity->state()->axis() * engine->location()));
+						location.assign(entity->state()->location()  - Camera::eye() + (entity->state()->axis() * engine->location()));
 						engine_size = 0.0625 * engine->radius();
 						color.assign(engine->color());
 						color.a = 0.9f * u;
@@ -849,7 +849,7 @@ void draw_pass_model_corona()
 
 		if (entity->model() && entity->state()->visible()) {
 			gl::push();
-			gl::translate(entity->state()->location());
+			gl::translate(entity->state()->location()  - Camera::eye());
 			math::Color color = entity->color();
 			color.a = 0.25f;
 			draw_sphere(color, entity->model()->radius());
@@ -883,7 +883,7 @@ void draw_pass_sky()
 	gl::enable(GL_TEXTURE_2D);
 	gl::push();
 
-	gl::translate(Camera::eye());	
+	//gl::translate(Camera::eye());	
 	draw_sphere_inside(math::Color(), 128);
 
 	gl::pop();
@@ -903,7 +903,7 @@ void draw_pass_spacegrid()
 	float dy =  Camera::target().y - floorf(Camera::target().y);
 
 	gl::push();
-	gl::translate(Camera::target());
+	gl::translate(Camera::target() - Camera::eye());
 	gl::color(0,0, 1.0f);
 	gl::normal(0, 0, 1.0f);