X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Fenvironmentmap.cpp;h=9c4df092481789d270669450b18f21b6ff71f1e4;hp=8cda8cbae63b7e7505dd26a1c73d17dfc4ee4db0;hb=40e1eba6c489e11a4c9b8865ddcd3ec3d9f83818;hpb=44d6110bb0f1bf92c6d749c2fb5345141d681c03

diff --git a/source/environmentmap.cpp b/source/environmentmap.cpp
index 8cda8cba..9c4df092 100644
--- a/source/environmentmap.cpp
+++ b/source/environmentmap.cpp
@@ -1,8 +1,11 @@
+#include <algorithm>
 #include <cmath>
 #include "environmentmap.h"
 #include "renderer.h"
 #include "texunit.h"
 
+using namespace std;
+
 namespace Msp {
 namespace GL {
 
@@ -10,7 +13,9 @@ EnvironmentMap::EnvironmentMap(unsigned s, Renderable &r, Renderable &e):
 	Effect(r),
 	size(s),
 	environment(e),
-	rendered(false)
+	rendered(false),
+	update_interval(1),
+	update_delay(0)
 {
 	env_tex.storage(RGB, size);
 	env_tex.set_wrap(CLAMP_TO_EDGE);
@@ -20,28 +25,59 @@ EnvironmentMap::EnvironmentMap(unsigned s, Renderable &r, Renderable &e):
 	{
 		fbo[i].attach(COLOR_ATTACHMENT0, env_tex, TextureCube::enumerate_faces(i), 0);
 		fbo[i].attach(DEPTH_ATTACHMENT, depth_buf);
+		fbo[i].require_complete();
 	}
 
-	// XXX Make the depth range configurable
-	camera.set_field_of_view(M_PI/2);
-	camera.set_aspect(1);
+	camera.set_field_of_view(Geometry::Angle<float>::right());
+	camera.set_aspect_ratio(1);
 	camera.set_depth_clip(0.1, 100);
 
-	shdata.uniform("environment", 4);
 }
 
-void EnvironmentMap::setup_frame() const
+void EnvironmentMap::set_depth_clip(float n, float f)
+{
+	camera.set_depth_clip(n, f);
+}
+
+void EnvironmentMap::set_update_interval(unsigned i)
+{
+	update_interval = i;
+	update_delay = min(update_delay, update_interval-1);
+}
+
+void EnvironmentMap::queue_update()
+{
+	update_delay = 0;
+}
+
+void EnvironmentMap::setup_frame(Renderer &renderer)
 {
 	if(rendered)
 		return;
 
 	rendered = true;
-	renderable.setup_frame();
-	environment.setup_frame();
+	renderable.setup_frame(renderer);
+
+	if(update_delay)
+	{
+		if(update_interval)
+			--update_delay;
+		return;
+	}
+	update_delay = update_interval-1;
+	environment.setup_frame(renderer);
 
 	const Matrix *matrix = renderable.get_matrix();
-	Vector3 position = (*matrix)*Vector3();
-	camera.set_position(position);
+	if(!matrix)
+		return;
+
+	Renderer::Push push(renderer);
+	Renderer::Exclude exclude1(renderer, renderable);
+	Renderer::Exclude exclude2(renderer, *this);
+
+	camera.set_position(matrix->column(3).slice<3>(0));
+
+	BindRestore bind_fbo(fbo[0]);
 	for(unsigned i=0; i<6; ++i)
 	{
 		TextureCubeFace face = TextureCube::enumerate_faces(i);
@@ -49,14 +85,12 @@ void EnvironmentMap::setup_frame() const
 		fbo[i].clear(COLOR_BUFFER_BIT|DEPTH_BUFFER_BIT);
 		camera.set_look_direction(env_tex.get_face_direction(face));
 		camera.set_up_direction(env_tex.get_t_direction(face));
-		Renderer env_renderer(&camera);
-		env_renderer.exclude(renderable);
-		env_renderer.render(environment);
+		renderer.set_camera(camera);
+		renderer.render(environment);
 	}
-	Framebuffer::unbind();
 }
 
-void EnvironmentMap::finish_frame() const
+void EnvironmentMap::finish_frame()
 {
 	if(rendered)
 	{
@@ -71,29 +105,17 @@ void EnvironmentMap::render(Renderer &renderer, const Tag &tag) const
 	if(!enabled_passes.count(tag))
 		return renderer.render(renderable, tag);
 
-	const Matrix &view_matrix = renderer.get_camera()->get_matrix();
-	// XXX The camera should maybe have store its own object matrix
-	float env_mdata[9];
-	env_mdata[0] = view_matrix[0];
-	env_mdata[1] = view_matrix[4];
-	env_mdata[2] = view_matrix[8];
-	env_mdata[3] = view_matrix[1];
-	env_mdata[4] = view_matrix[5];
-	env_mdata[5] = view_matrix[9];
-	env_mdata[6] = view_matrix[2];
-	env_mdata[7] = view_matrix[6];
-	env_mdata[8] = view_matrix[10];
-	shdata.uniform_matrix3("env_eye_matrix", env_mdata);
-
-	env_tex.bind_to(4);
-	TexUnit::activate(0);
-
 	Renderer::Push _push_rend(renderer);
+
+	unsigned unit = renderer.allocate_effect_texunit();
+	shdata.uniform("environment", static_cast<int>(unit));
+	Bind _bind_env(env_tex, unit);
+
+	const Matrix &camera_matrix = renderer.get_camera()->get_object_matrix();
+	shdata.uniform("env_eye_matrix", camera_matrix.block<3, 3>(0, 0));
+
 	renderer.add_shader_data(shdata);
 	renderer.render(renderable, tag);
-
-	env_tex.unbind_from(4);
-	TexUnit::activate(0);
 }
 
 } // namespace GL