X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fshadowmap.cpp;h=b930315f626140d43c461910a8c8bfc01fdfd580;hb=7398ee7ebbd8b7e56c721a85cbe721b79758d09a;hp=11403c6dfb8cb1d48225cd619f01153eec263956;hpb=48fc090a59a5ff5c3f06ffe1acfe77b06dad2a86;p=libs%2Fgl.git

diff --git a/source/shadowmap.cpp b/source/shadowmap.cpp
index 11403c6d..b930315f 100644
--- a/source/shadowmap.cpp
+++ b/source/shadowmap.cpp
@@ -3,8 +3,10 @@
 #include "light.h"
 #include "matrix.h"
 #include "misc.h"
+#include "renderer.h"
 #include "scene.h"
 #include "shadowmap.h"
+#include "texgen.h"
 #include "texunit.h"
 
 using namespace std;
@@ -12,12 +14,12 @@ using namespace std;
 namespace Msp {
 namespace GL {
 
-ShadowMap::ShadowMap(unsigned s, const Scene &c, const Light &l):
+ShadowMap::ShadowMap(unsigned s, const Renderable &r, const Light &l):
+	Effect(r),
 	size(s),
-	scene(c),
 	light(l),
-	unit(3),
-	radius(1)
+	radius(1),
+	depth_bias(4)
 {
 	depth_buf.set_min_filter(LINEAR);
 	depth_buf.set_compare_enabled(true);
@@ -25,6 +27,9 @@ ShadowMap::ShadowMap(unsigned s, const Scene &c, const Light &l):
 	depth_buf.set_wrap(CLAMP_TO_EDGE);
 	depth_buf.storage(DEPTH_COMPONENT, size, size);
 	fbo.attach(DEPTH_ATTACHMENT, depth_buf, 0);
+
+	set_darkness(0.7);
+	set_texture_unit(3);
 }
 
 void ShadowMap::set_target(const Vector3 &t, float r)
@@ -33,13 +38,36 @@ void ShadowMap::set_target(const Vector3 &t, float r)
 	radius = r;
 }
 
+void ShadowMap::set_darkness(float d)
+{
+	if(d<0.0f || d>1.0f)
+		throw invalid_argument("ShadowMap::set_darkness");
+
+	shdata.uniform("shadow_darkness", d);
+}
+
+void ShadowMap::set_depth_bias(float b)
+{
+	if(b<0.0f)
+		throw invalid_argument("ShadowMap::set_depth_bias");
+
+	depth_bias = b;
+}
+
 void ShadowMap::set_texture_unit(unsigned u)
 {
 	unit = u;
+
+	int i = unit;
+	shdata.uniform("shadow", i);
+	shdata.uniform("shadow_unit", i);
 }
 
-void ShadowMap::prepare()
+void ShadowMap::render(Renderer &renderer, const Tag &tag) const
 {
+	if(!enabled_passes.count(tag))
+		return renderer.render(renderable, tag);
+
 	Vector4 lpos = light.get_position();
 	if(lpos.w)
 	{
@@ -88,6 +116,8 @@ void ShadowMap::prepare()
 	matrix[11] = 0;
 	matrix[15] = 1;
 
+	renderer.escape();
+
 	{
 		MatrixStack::Push push_mv(MatrixStack::modelview());
 		MatrixStack::Push push_proj(MatrixStack::projection());
@@ -97,33 +127,29 @@ void ShadowMap::prepare()
 
 		Bind bind_fbo(fbo, true);
 		fbo.clear(DEPTH_BUFFER_BIT);
-		scene.render("shadow");
+		renderable.render("shadow");
 	}
 
+	// Has side effect of changing the current unit
 	depth_buf.bind_to(unit);
 	float diam = radius*2;
-	float s_eq[4] = { matrix[0]/diam, matrix[4]/diam, matrix[8]/diam, matrix[12]/diam+0.5f };
-	float t_eq[4] = { matrix[1]/diam, matrix[5]/diam, matrix[9]/diam, matrix[13]/diam+0.5f };
-	float r_eq[4] = { -matrix[2]/diam, -matrix[6]/diam, -matrix[10]/diam, 0.5f-matrix[14]/diam-4.0f/size };
-	glTexGeni(GL_S, GL_TEXTURE_GEN_MODE, GL_EYE_LINEAR);
-	glTexGenfv(GL_S, GL_EYE_PLANE, s_eq);
-	enable(GL_TEXTURE_GEN_S);
-	glTexGeni(GL_T, GL_TEXTURE_GEN_MODE, GL_EYE_LINEAR);
-	glTexGenfv(GL_T, GL_EYE_PLANE, t_eq);
-	enable(GL_TEXTURE_GEN_T);
-	glTexGeni(GL_R, GL_TEXTURE_GEN_MODE, GL_EYE_LINEAR);
-	glTexGenfv(GL_R, GL_EYE_PLANE, r_eq);
-	enable(GL_TEXTURE_GEN_R);
-
+	TexGen tg_s, tg_t, tg_r;
+	tg_s.set_plane(Vector4(matrix[0]/diam, matrix[4]/diam, matrix[8]/diam, matrix[12]/diam+0.5f));
+	tg_t.set_plane(Vector4(matrix[1]/diam, matrix[5]/diam, matrix[9]/diam, matrix[13]/diam+0.5f));
+	tg_r.set_plane(Vector4(-matrix[2]/diam, -matrix[6]/diam, -matrix[10]/diam, 0.5f-matrix[14]/diam-depth_bias/size));
+	tg_s.bind_to(SCOORD);
+	tg_t.bind_to(TCOORD);
+	tg_r.bind_to(RCOORD);
 	TexUnit::activate(0);
-}
 
-void ShadowMap::cleanup()
-{
+	Renderer::Push _push_rend(renderer);
+	renderer.add_shader_data(shdata);
+	renderer.render(renderable, tag);
+
 	Texture::unbind_from(unit);
-	disable(GL_TEXTURE_GEN_S);
-	disable(GL_TEXTURE_GEN_T);
-	disable(GL_TEXTURE_GEN_R);
+	TexGen::unbind_from(SCOORD);
+	TexGen::unbind_from(TCOORD);
+	TexGen::unbind_from(RCOORD);
 	TexUnit::activate(0);
 }