X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Fshadowmap.cpp;h=921a1747875b4bf0b349042dac6aab26095cff84;hp=96539f1d4d70c2241e0699e60dc5da757595a961;hb=HEAD;hpb=656b4577fccfb02bea747871e5ab10148f002443

diff --git a/source/shadowmap.cpp b/source/shadowmap.cpp
deleted file mode 100644
index 96539f1d..00000000
--- a/source/shadowmap.cpp
+++ /dev/null
@@ -1,138 +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 "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.set_compare_enabled(true);
-	depth_buf.set_compare_func(LEQUAL);
-	depth_buf.set_wrap(CLAMP_TO_EDGE);
-	depth_buf.storage(DEPTH_COMPONENT, size, size);
-	fbo.attach(DEPTH_ATTACHMENT, depth_buf, 0);
-}
-
-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()
-{
-	Vector4 lpos = light.get_position();
-	if(lpos.w)
-	{
-		/* XXX Not really proper way to support positional lights, but good
-		enough when the light source is far away */
-		lpos.x -= target.x;
-		lpos.y -= target.y;
-		lpos.z -= target.z;
-		float d = sqrt(lpos.x*lpos.x+lpos.y*lpos.y+lpos.z*lpos.z);
-		lpos.x /= d;
-		lpos.y /= d;
-		lpos.z /= d;
-	}
-
-	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;
-
-	{
-		MatrixStack::Push push_mv(MatrixStack::modelview());
-		MatrixStack::Push push_proj(MatrixStack::projection());
-
-		MatrixStack::projection() = Matrix::ortho(-radius, radius, -radius, radius, -radius, radius);
-		MatrixStack::modelview() = matrix;
-
-		Bind bind_fbo(fbo, true);
-		fbo.clear(DEPTH_BUFFER_BIT);
-		scene.render("shadow");
-	}
-
-	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()
-{
-	Texture::unbind_from(unit);
-	disable(GL_TEXTURE_GEN_S);
-	disable(GL_TEXTURE_GEN_T);
-	disable(GL_TEXTURE_GEN_R);
-	TexUnit::activate(0);
-}
-
-} // namespace GL
-} // namespace Msp