X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Fshadowmap.cpp;h=921a1747875b4bf0b349042dac6aab26095cff84;hp=5f66d8984279ce55f9cfc98fcf2298d34fa31337;hb=HEAD;hpb=98c810b6d2256aa65986bbde12c38917678121bb

diff --git a/source/shadowmap.cpp b/source/shadowmap.cpp
deleted file mode 100644
index 5f66d898..00000000
--- a/source/shadowmap.cpp
+++ /dev/null
@@ -1,148 +0,0 @@
-/* $Id$
-
-This file is part of libmspgl
-Copyright © 2009  Mikko Rasa, Mikkosoft Productions
-Distributed under the LGPL
-*/
-
-#include <cmath>
-#include <cstdlib>
-#include "light.h"
-#include "matrix.h"
-#include "misc.h"
-#include "projection.h"
-#include "scene.h"
-#include "shadowmap.h"
-#include "texunit.h"
-
-using namespace std;
-
-namespace Msp {
-namespace GL {
-
-ShadowMap::ShadowMap(unsigned s, const Scene &c, const Light &l):
-	size(s),
-	scene(c),
-	light(l),
-	unit(3),
-	radius(1)
-{
-	depth_buf.set_min_filter(LINEAR);
-	depth_buf.storage(DEPTH_COMPONENT, size, size, 0);
-	depth_buf.image(0, DEPTH_COMPONENT, UNSIGNED_BYTE, 0);
-	depth_buf.parameter(GL_DEPTH_TEXTURE_MODE, GL_LUMINANCE);
-	depth_buf.parameter(GL_TEXTURE_COMPARE_MODE, GL_COMPARE_R_TO_TEXTURE);
-	depth_buf.parameter(GL_TEXTURE_COMPARE_FUNC, GL_LEQUAL);
-	depth_buf.parameter(GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
-	depth_buf.parameter(GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
-	fbo.attach(DEPTH_ATTACHMENT, depth_buf, 0);
-	draw_buffer(NO_BUFFER);
-	Framebuffer::unbind();
-	Texture::unbind();
-}
-
-void ShadowMap::set_target(const Vector3 &t, float r)
-{
-	target=t;
-	radius=r;
-}
-
-void ShadowMap::set_texture_unit(unsigned u)
-{
-	unit=u;
-}
-
-void ShadowMap::prepare()
-{
-	const Vector4 &lpos=light.get_position();
-	if(lpos.w)
-		throw Exception("Non-directional lights not supported at the moment");
-
-	float matrix[16];
-	if(abs(lpos.z)>=abs(lpos.x) && abs(lpos.z)>=abs(lpos.y))
-	{
-		float d=sqrt(lpos.x*lpos.x+lpos.z*lpos.z);
-		matrix[0]=lpos.z/d;
-		matrix[4]=0;
-		matrix[8]=-lpos.x/d;
-		matrix[1]=-lpos.x*lpos.y/d;
-		matrix[5]=d;
-		matrix[9]=-lpos.z*lpos.y/d;
-	}
-	else
-	{
-		float d=sqrt(lpos.x*lpos.x+lpos.y*lpos.y);
-		matrix[0]=-lpos.y/d;
-		matrix[4]=lpos.x/d;
-		matrix[8]=0;
-		matrix[1]=-lpos.x*lpos.z/d;
-		matrix[5]=-lpos.y*lpos.z/d;
-		matrix[9]=d;
-	}
-
-	matrix[2]=lpos.x;
-	matrix[6]=lpos.y;
-	matrix[10]=lpos.z;
-
-	matrix[12]=-(target.x*matrix[0]+target.y*matrix[4]+target.z*matrix[8]);
-	matrix[13]=-(target.x*matrix[1]+target.y*matrix[5]+target.z*matrix[9]);
-	matrix[14]=-(target.x*matrix[2]+target.y*matrix[6]+target.z*matrix[10]);
-	matrix[3]=0;
-	matrix[7]=0;
-	matrix[11]=0;
-	matrix[15]=1;
-
-	{
-		matrix_mode(PROJECTION);
-		push_matrix();
-		load_identity();
-		ortho(-radius, radius, -radius, radius, -radius, radius);
-		matrix_mode(MODELVIEW);
-		push_matrix();
-		load_matrix(matrix);
-
-		const Framebuffer *old_fbo=Framebuffer::current();
-		fbo.bind();
-		clear(DEPTH_BUFFER_BIT);
-		scene.render("shadow");
-
-		matrix_mode(PROJECTION);
-		pop_matrix();
-		matrix_mode(MODELVIEW);
-		pop_matrix();
-		if(old_fbo)
-			old_fbo->bind();
-		else
-			Framebuffer::unbind();
-	}
-
-	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+0.5 };
-	float t_eq[4]={ matrix[1]/diam, matrix[5]/diam, matrix[9]/diam, matrix[13]/diam+0.5 };
-	float r_eq[4]={ -matrix[2]/diam, -matrix[6]/diam, -matrix[10]/diam, 0.5-matrix[14]/diam-4.0/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);
-
-	TexUnit::activate(0);
-}
-
-void ShadowMap::cleanup()
-{
-	TexUnit::activate(unit);
-	Texture::unbind();
-	disable(GL_TEXTURE_GEN_S);
-	disable(GL_TEXTURE_GEN_T);
-	disable(GL_TEXTURE_GEN_R);
-	TexUnit::activate(0);
-}
-
-} // namespace GL
-} // namespace Msp