# HG changeset patch
# User John Tsiombikas <nuclear@mutantstargoat.com>
# Date 1315459875 -10800
# Node ID fb4c9641059f97aa3ebc927924e94ebc5f581480
# Parent  c0ae8e66844774c6cf806e060442cd4365a8be06
added more forgotten files

diff -r c0ae8e668447 -r fb4c9641059f libs/vmath/matrix.inl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libs/vmath/matrix.inl	Thu Sep 08 08:31:15 2011 +0300
@@ -0,0 +1,147 @@
+#include <string.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif	/* __cplusplus */
+
+/* C matrix 3x3 functions */
+static inline void m3_identity(mat3_t m)
+{
+	static const mat3_t id = {{1, 0, 0}, {0, 1, 0}, {0, 0, 1}};
+	memcpy(m, id, sizeof id);
+}
+
+static inline void m3_cons(mat3_t m,
+		scalar_t m11, scalar_t m12, scalar_t m13,
+		scalar_t m21, scalar_t m22, scalar_t m23,
+		scalar_t m31, scalar_t m32, scalar_t m33)
+{
+	m[0][0] = m11; m[0][1] = m12; m[0][2] = m13;
+	m[1][0] = m21; m[1][1] = m22; m[1][2] = m23;
+	m[2][0] = m31; m[2][1] = m32; m[2][2] = m33;
+}
+
+static inline void m3_copy(mat3_t dest, mat3_t src)
+{
+	memcpy(dest, src, sizeof(mat3_t));
+}
+
+
+/* C matrix 4x4 functions */
+static inline void m4_identity(mat4_t m)
+{
+	static const mat4_t id = {{1, 0, 0, 0}, {0, 1, 0, 0}, {0, 0, 1, 0}, {0, 0, 0, 1}};
+	memcpy(m, id, sizeof id);
+}
+
+static inline void m4_cons(mat4_t m,
+		scalar_t m11, scalar_t m12, scalar_t m13, scalar_t m14,
+		scalar_t m21, scalar_t m22, scalar_t m23, scalar_t m24,
+		scalar_t m31, scalar_t m32, scalar_t m33, scalar_t m34,
+		scalar_t m41, scalar_t m42, scalar_t m43, scalar_t m44)
+{
+	m[0][0] = m11; m[0][1] = m12; m[0][2] = m13; m[0][3] = m14;
+	m[1][0] = m21; m[1][1] = m22; m[1][2] = m23; m[1][3] = m24;
+	m[2][0] = m31; m[2][1] = m32; m[2][2] = m33; m[2][3] = m34;
+	m[3][0] = m41; m[3][1] = m42; m[3][2] = m43; m[3][3] = m44;
+}
+
+static inline void m4_copy(mat4_t dest, mat4_t src)
+{
+	memcpy(dest, src, sizeof(mat4_t));
+}
+
+static inline void m4_mult(mat4_t res, mat4_t m1, mat4_t m2)
+{
+	res[0][0] = m1[0][0] * m2[0][0] + m1[0][1] * m2[1][0] + m1[0][2] * m2[2][0] + m1[0][3] * m2[3][0];
+	res[0][1] = m1[0][0] * m2[0][1] + m1[0][1] * m2[1][1] + m1[0][2] * m2[2][1] + m1[0][3] * m2[3][1];
+	res[0][2] = m1[0][0] * m2[0][2] + m1[0][1] * m2[1][2] + m1[0][2] * m2[2][2] + m1[0][3] * m2[3][2];
+	res[0][3] = m1[0][0] * m2[0][3] + m1[0][1] * m2[1][3] + m1[0][2] * m2[2][3] + m1[0][3] * m2[3][3];
+
+	res[1][0] = m1[1][0] * m2[0][0] + m1[1][1] * m2[1][0] + m1[1][2] * m2[2][0] + m1[1][3] * m2[3][0];
+	res[1][1] = m1[1][0] * m2[0][1] + m1[1][1] * m2[1][1] + m1[1][2] * m2[2][1] + m1[1][3] * m2[3][1];
+	res[1][2] = m1[1][0] * m2[0][2] + m1[1][1] * m2[1][2] + m1[1][2] * m2[2][2] + m1[1][3] * m2[3][2];
+	res[1][3] = m1[1][0] * m2[0][3] + m1[1][1] * m2[1][3] + m1[1][2] * m2[2][3] + m1[1][3] * m2[3][3];
+
+	res[2][0] = m1[2][0] * m2[0][0] + m1[2][1] * m2[1][0] + m1[2][2] * m2[2][0] + m1[2][3] * m2[3][0];
+	res[2][1] = m1[2][0] * m2[0][1] + m1[2][1] * m2[1][1] + m1[2][2] * m2[2][1] + m1[2][3] * m2[3][1];
+	res[2][2] = m1[2][0] * m2[0][2] + m1[2][1] * m2[1][2] + m1[2][2] * m2[2][2] + m1[2][3] * m2[3][2];
+	res[2][3] = m1[2][0] * m2[0][3] + m1[2][1] * m2[1][3] + m1[2][2] * m2[2][3] + m1[2][3] * m2[3][3];
+
+	res[3][0] = m1[3][0] * m2[0][0] + m1[3][1] * m2[1][0] + m1[3][2] * m2[2][0] + m1[3][3] * m2[3][0];
+	res[3][1] = m1[3][0] * m2[0][1] + m1[3][1] * m2[1][1] + m1[3][2] * m2[2][1] + m1[3][3] * m2[3][1];
+	res[3][2] = m1[3][0] * m2[0][2] + m1[3][1] * m2[1][2] + m1[3][2] * m2[2][2] + m1[3][3] * m2[3][2];
+	res[3][3] = m1[3][0] * m2[0][3] + m1[3][1] * m2[1][3] + m1[3][2] * m2[2][3] + m1[3][3] * m2[3][3];
+}
+
+static inline void m4_set_column(mat4_t m, vec4_t v, int idx)
+{
+	m[0][idx] = v.x;
+	m[1][idx] = v.y;
+	m[2][idx] = v.z;
+	m[3][idx] = v.w;
+}
+
+static inline void m4_set_row(mat4_t m, vec4_t v, int idx)
+{
+	m[idx][0] = v.x;
+	m[idx][1] = v.y;
+	m[idx][2] = v.z;
+	m[idx][3] = v.w;
+}
+
+#ifdef __cplusplus
+}	/* extern "C" */
+
+
+/* unrolled to hell and inline */
+inline Matrix4x4 operator *(const Matrix4x4 &m1, const Matrix4x4 &m2) {
+	Matrix4x4 res;
+
+	res.m[0][0] = m1.m[0][0] * m2.m[0][0] + m1.m[0][1] * m2.m[1][0] + m1.m[0][2] * m2.m[2][0] + m1.m[0][3] * m2.m[3][0];
+	res.m[0][1] = m1.m[0][0] * m2.m[0][1] + m1.m[0][1] * m2.m[1][1] + m1.m[0][2] * m2.m[2][1] + m1.m[0][3] * m2.m[3][1];
+	res.m[0][2] = m1.m[0][0] * m2.m[0][2] + m1.m[0][1] * m2.m[1][2] + m1.m[0][2] * m2.m[2][2] + m1.m[0][3] * m2.m[3][2];
+	res.m[0][3] = m1.m[0][0] * m2.m[0][3] + m1.m[0][1] * m2.m[1][3] + m1.m[0][2] * m2.m[2][3] + m1.m[0][3] * m2.m[3][3];
+
+	res.m[1][0] = m1.m[1][0] * m2.m[0][0] + m1.m[1][1] * m2.m[1][0] + m1.m[1][2] * m2.m[2][0] + m1.m[1][3] * m2.m[3][0];
+	res.m[1][1] = m1.m[1][0] * m2.m[0][1] + m1.m[1][1] * m2.m[1][1] + m1.m[1][2] * m2.m[2][1] + m1.m[1][3] * m2.m[3][1];
+	res.m[1][2] = m1.m[1][0] * m2.m[0][2] + m1.m[1][1] * m2.m[1][2] + m1.m[1][2] * m2.m[2][2] + m1.m[1][3] * m2.m[3][2];
+	res.m[1][3] = m1.m[1][0] * m2.m[0][3] + m1.m[1][1] * m2.m[1][3] + m1.m[1][2] * m2.m[2][3] + m1.m[1][3] * m2.m[3][3];
+
+	res.m[2][0] = m1.m[2][0] * m2.m[0][0] + m1.m[2][1] * m2.m[1][0] + m1.m[2][2] * m2.m[2][0] + m1.m[2][3] * m2.m[3][0];
+	res.m[2][1] = m1.m[2][0] * m2.m[0][1] + m1.m[2][1] * m2.m[1][1] + m1.m[2][2] * m2.m[2][1] + m1.m[2][3] * m2.m[3][1];
+	res.m[2][2] = m1.m[2][0] * m2.m[0][2] + m1.m[2][1] * m2.m[1][2] + m1.m[2][2] * m2.m[2][2] + m1.m[2][3] * m2.m[3][2];
+	res.m[2][3] = m1.m[2][0] * m2.m[0][3] + m1.m[2][1] * m2.m[1][3] + m1.m[2][2] * m2.m[2][3] + m1.m[2][3] * m2.m[3][3];
+
+	res.m[3][0] = m1.m[3][0] * m2.m[0][0] + m1.m[3][1] * m2.m[1][0] + m1.m[3][2] * m2.m[2][0] + m1.m[3][3] * m2.m[3][0];
+	res.m[3][1] = m1.m[3][0] * m2.m[0][1] + m1.m[3][1] * m2.m[1][1] + m1.m[3][2] * m2.m[2][1] + m1.m[3][3] * m2.m[3][1];
+	res.m[3][2] = m1.m[3][0] * m2.m[0][2] + m1.m[3][1] * m2.m[1][2] + m1.m[3][2] * m2.m[2][2] + m1.m[3][3] * m2.m[3][2];
+	res.m[3][3] = m1.m[3][0] * m2.m[0][3] + m1.m[3][1] * m2.m[1][3] + m1.m[3][2] * m2.m[2][3] + m1.m[3][3] * m2.m[3][3];
+
+	return res;
+}
+
+inline scalar_t *Matrix3x3::operator [](int index) {
+	return m[index];
+}
+
+inline const scalar_t *Matrix3x3::operator [](int index) const {
+	return m[index];
+}
+
+inline void Matrix3x3::reset_identity() {
+	memcpy(this->m, identity.m, 9 * sizeof(scalar_t));
+}
+
+inline scalar_t *Matrix4x4::operator [](int index) {
+	return m[index];
+}
+
+inline const scalar_t *Matrix4x4::operator [](int index) const {
+	return m[index];
+}
+
+inline void Matrix4x4::reset_identity() {
+	memcpy(this->m, identity.m, 16 * sizeof(scalar_t));
+}
+#endif	/* __cplusplus */
diff -r c0ae8e668447 -r fb4c9641059f libs/vmath/quat.inl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libs/vmath/quat.inl	Thu Sep 08 08:31:15 2011 +0300
@@ -0,0 +1,63 @@
+#include "vector.h"
+#include "matrix.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif	/* __cplusplus */
+
+static inline quat_t quat_mul(quat_t q1, quat_t q2)
+{
+	quat_t res;
+	vec3_t v1 = quat_vec(q1);
+	vec3_t v2 = quat_vec(q2);
+
+	res.w = q1.w * q2.w - v3_dot(v1, v2);
+	/* resvec = v2 * q1 + v1 * q2 + cross(v1, v2) */
+	res.x = v2.x * q1.w + v1.x * q2.w + (v1.y * v2.z - v1.z * v2.y);
+	res.y = v2.y * q1.w + v1.y * q2.w + (v1.z * v2.x - v1.x * v2.z);
+	res.z = v2.z * q1.w + v1.z * q2.w + (v1.x * v2.y - v1.y * v2.x);
+	return res;
+}
+
+static inline quat_t quat_conjugate(quat_t q)
+{
+	q.x = -q.x;
+	q.y = -q.y;
+	q.z = -q.z;
+	return q;
+}
+
+static inline quat_t quat_inverse(quat_t q)
+{
+	scalar_t lensq = quat_length_sq(q);
+	q = quat_conjugate(q);
+	q.x /= lensq;
+	q.y /= lensq;
+	q.z /= lensq;
+	q.w /= lensq;
+	return q;
+}
+
+static inline void quat_to_mat3(mat3_t res, quat_t q)
+{
+	m3_cons(res, 1.0 - 2.0 * q.y*q.y - 2.0 * q.z*q.z, 2.0 * q.x * q.y + 2.0 * q.w * q.z,   2.0 * q.z * q.x - 2.0 * q.w * q.y,
+				 2.0 * q.x * q.y - 2.0 * q.w * q.z,   1.0 - 2.0 * q.x*q.x - 2.0 * q.z*q.z, 2.0 * q.y * q.z + 2.0 * q.w * q.x,
+				 2.0 * q.z * q.x + 2.0 * q.w * q.y,   2.0 * q.y * q.z - 2.0 * q.w * q.x,   1.0 - 2.0 * q.x*q.x - 2.0 * q.y*q.y);
+}
+
+static inline void quat_to_mat4(mat4_t res, quat_t q)
+{
+	m4_cons(res, 1.0 - 2.0 * q.y*q.y - 2.0 * q.z*q.z, 2.0 * q.x * q.y + 2.0 * q.w * q.z,   2.0 * q.z * q.x - 2.0 * q.w * q.y,   0,
+				 2.0 * q.x * q.y - 2.0 * q.w * q.z,   1.0 - 2.0 * q.x*q.x - 2.0 * q.z*q.z, 2.0 * q.y * q.z + 2.0 * q.w * q.x,   0,
+				 2.0 * q.z * q.x + 2.0 * q.w * q.y,   2.0 * q.y * q.z - 2.0 * q.w * q.x,   1.0 - 2.0 * q.x*q.x - 2.0 * q.y*q.y, 0,
+				 0, 0, 0, 1);
+}
+
+#ifdef __cplusplus
+}	/* extern "C" */
+
+inline Quaternion lerp(const Quaternion &a, const Quaternion &b, scalar_t t)
+{
+	return slerp(a, b, t);
+}
+#endif	/* __cplusplus */
diff -r c0ae8e668447 -r fb4c9641059f libs/vmath/ray.inl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libs/vmath/ray.inl	Thu Sep 08 08:31:15 2011 +0300
@@ -0,0 +1,52 @@
+#ifdef __cplusplus
+extern "C" {
+#endif	/* __cplusplus */
+
+static inline ray_t ray_cons(vec3_t origin, vec3_t dir)
+{
+	ray_t r;
+	r.origin = origin;
+	r.dir = dir;
+	return r;
+}
+
+#ifdef __cplusplus
+}
+
+inline Ray reflect_ray(const Ray &inray, const Vector3 &norm)
+{
+	Ray ray = inray;
+	ray.iter--;
+	ray.dir = ray.dir.reflection(norm);
+	return ray;
+}
+
+inline Ray refract_ray(const Ray &inray, const Vector3 &norm, scalar_t mat_ior, bool entering, scalar_t ray_mag)
+{
+	Ray ray = inray;
+	ray.iter--;
+
+	scalar_t ior = ray.calc_ior(entering, mat_ior);
+	
+	if(entering) {
+		ray.enter(mat_ior);
+	} else {
+		ray.leave();
+	}
+
+	if(ray_mag < 0.0) {
+		ray_mag = ray.dir.length();
+	}
+	ray.dir = (ray.dir / ray_mag).refraction(norm, ior) * ray_mag;
+
+	/* check TIR */
+	if(dot_product(ray.dir, norm) > 0.0) {
+		if(entering) {
+			ray.leave();
+		} else {
+			ray.enter(mat_ior);
+		}
+	}
+	return ray;
+}
+#endif	/* __cplusplus */
diff -r c0ae8e668447 -r fb4c9641059f libs/vmath/vector.inl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libs/vmath/vector.inl	Thu Sep 08 08:31:15 2011 +0300
@@ -0,0 +1,743 @@
+#include <math.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif	/* __cplusplus */
+
+/* C 2D vector functions */
+static inline vec2_t v2_cons(scalar_t x, scalar_t y)
+{
+	vec2_t v;
+	v.x = x;
+	v.y = y;
+	return v;
+}
+
+static inline void v2_print(FILE *fp, vec2_t v)
+{
+	fprintf(fp, "[ %.4f %.4f ]", v.x, v.y);
+}
+
+static inline vec2_t v2_add(vec2_t v1, vec2_t v2)
+{
+	vec2_t res;
+	res.x = v1.x + v2.x;
+	res.y = v1.y + v2.y;
+	return res;
+}
+
+static inline vec2_t v2_sub(vec2_t v1, vec2_t v2)
+{
+	vec2_t res;
+	res.x = v1.x - v2.x;
+	res.y = v1.y - v2.y;
+	return res;
+}
+
+static inline vec2_t v2_scale(vec2_t v, scalar_t s)
+{
+	vec2_t res;
+	res.x = v.x * s;
+	res.y = v.y * s;
+	return res;
+}
+
+static inline scalar_t v2_dot(vec2_t v1, vec2_t v2)
+{
+	return v1.x * v2.x + v1.y * v2.y;
+}
+
+static inline scalar_t v2_length(vec2_t v)
+{
+	return sqrt(v.x * v.x + v.y * v.y);
+}
+
+static inline scalar_t v2_length_sq(vec2_t v)
+{
+	return v.x * v.x + v.y * v.y;
+}
+
+static inline vec2_t v2_normalize(vec2_t v)
+{
+	scalar_t len = (scalar_t)sqrt(v.x * v.x + v.y * v.y);
+	v.x /= len;
+	v.y /= len;
+	return v;
+}
+
+static inline vec2_t v2_lerp(vec2_t v1, vec2_t v2, scalar_t t)
+{
+	vec2_t res;
+	res.x = v1.x + (v2.x - v1.x) * t;
+	res.y = v1.y + (v2.y - v1.y) * t;
+	return res;
+}
+
+
+/* C 3D vector functions */
+static inline vec3_t v3_cons(scalar_t x, scalar_t y, scalar_t z)
+{
+	vec3_t v;
+	v.x = x;
+	v.y = y;
+	v.z = z;
+	return v;
+}
+
+static inline void v3_print(FILE *fp, vec3_t v)
+{
+	fprintf(fp, "[ %.4f %.4f %.4f ]", v.x, v.y, v.z);
+}
+
+static inline vec3_t v3_add(vec3_t v1, vec3_t v2)
+{
+	v1.x += v2.x;
+	v1.y += v2.y;
+	v1.z += v2.z;
+	return v1;
+}
+
+static inline vec3_t v3_sub(vec3_t v1, vec3_t v2)
+{
+	v1.x -= v2.x;
+	v1.y -= v2.y;
+	v1.z -= v2.z;
+	return v1;
+}
+
+static inline vec3_t v3_neg(vec3_t v)
+{
+	v.x = -v.x;
+	v.y = -v.y;
+	v.z = -v.z;
+	return v;
+}
+
+static inline vec3_t v3_mul(vec3_t v1, vec3_t v2)
+{
+	v1.x *= v2.x;
+	v1.y *= v2.y;
+	v1.z *= v2.z;
+	return v1;
+}
+
+static inline vec3_t v3_scale(vec3_t v1, scalar_t s)
+{
+	v1.x *= s;
+	v1.y *= s;
+	v1.z *= s;
+	return v1;
+}
+
+static inline scalar_t v3_dot(vec3_t v1, vec3_t v2)
+{
+	return v1.x * v2.x + v1.y * v2.y + v1.z * v2.z;
+}
+
+static inline vec3_t v3_cross(vec3_t v1, vec3_t v2)
+{
+	vec3_t v;
+	v.x = v1.y * v2.z - v1.z * v2.y;
+	v.y = v1.z * v2.x - v1.x * v2.z;
+	v.z = v1.x * v2.y - v1.y * v2.x;
+	return v;
+}
+
+static inline scalar_t v3_length(vec3_t v)
+{
+	return sqrt(v.x * v.x + v.y * v.y + v.z * v.z);
+}
+
+static inline scalar_t v3_length_sq(vec3_t v)
+{
+	return v.x * v.x + v.y * v.y + v.z * v.z;
+}
+
+static inline vec3_t v3_normalize(vec3_t v)
+{
+	scalar_t len = sqrt(v.x * v.x + v.y * v.y + v.z * v.z);
+	v.x /= len;
+	v.y /= len;
+	v.z /= len;
+	return v;
+}
+
+static inline vec3_t v3_transform(vec3_t v, mat4_t m)
+{
+	vec3_t res;
+	res.x = m[0][0] * v.x + m[0][1] * v.y + m[0][2] * v.z + m[0][3];
+	res.y = m[1][0] * v.x + m[1][1] * v.y + m[1][2] * v.z + m[1][3];
+	res.z = m[2][0] * v.x + m[2][1] * v.y + m[2][2] * v.z + m[2][3];
+	return res;
+}
+
+static inline vec3_t v3_rotate(vec3_t v, scalar_t x, scalar_t y, scalar_t z)
+{
+	void m4_rotate(mat4_t, scalar_t, scalar_t, scalar_t);
+
+	mat4_t m = {{1, 0, 0, 0}, {0, 1, 0, 0}, {0, 0, 1, 0}, {0, 0, 0, 1}};
+	m4_rotate(m, x, y, z);
+	return v3_transform(v, m);
+}
+
+static inline vec3_t v3_rotate_axis(vec3_t v, scalar_t angle, scalar_t x, scalar_t y, scalar_t z)
+{
+	void m4_rotate_axis(mat4_t, scalar_t, scalar_t, scalar_t, scalar_t);
+
+	mat4_t m = {{1, 0, 0, 0}, {0, 1, 0, 0}, {0, 0, 1, 0}, {0, 0, 0, 1}};
+	m4_rotate_axis(m, angle, x, y, z);
+	return v3_transform(v, m);
+}
+
+static inline vec3_t v3_rotate_quat(vec3_t v, quat_t q)
+{
+	quat_t quat_rotate_quat(quat_t, quat_t);
+
+	quat_t vq = v4_cons(v.x, v.y, v.z, 0.0);
+	quat_t res = quat_rotate_quat(vq, q);
+	return v3_cons(res.x, res.y, res.z);
+}
+
+static inline vec3_t v3_reflect(vec3_t v, vec3_t n)
+{
+	scalar_t dot = v3_dot(v, n);
+	return v3_sub(v3_scale(n, dot * 2.0), v);
+}
+
+static inline vec3_t v3_lerp(vec3_t v1, vec3_t v2, scalar_t t)
+{
+	v1.x += (v2.x - v1.x) * t;
+	v1.y += (v2.y - v1.y) * t;
+	v1.z += (v2.z - v1.z) * t;
+	return v1;
+}
+
+/* C 4D vector functions */
+static inline vec4_t v4_cons(scalar_t x, scalar_t y, scalar_t z, scalar_t w)
+{
+	vec4_t v;
+	v.x = x;
+	v.y = y;
+	v.z = z;
+	v.w = w;
+	return v;
+}
+
+static inline void v4_print(FILE *fp, vec4_t v)
+{
+	fprintf(fp, "[ %.4f %.4f %.4f %.4f ]", v.x, v.y, v.z, v.w);
+}
+
+static inline vec4_t v4_add(vec4_t v1, vec4_t v2)
+{
+	v1.x += v2.x;
+	v1.y += v2.y;
+	v1.z += v2.z;
+	v1.w += v2.w;
+	return v1;
+}
+
+static inline vec4_t v4_sub(vec4_t v1, vec4_t v2)
+{
+	v1.x -= v2.x;
+	v1.y -= v2.y;
+	v1.z -= v2.z;
+	v1.w -= v2.w;
+	return v1;
+}
+
+static inline vec4_t v4_neg(vec4_t v)
+{
+	v.x = -v.x;
+	v.y = -v.y;
+	v.z = -v.z;
+	v.w = -v.w;
+	return v;
+}
+
+static inline vec4_t v4_mul(vec4_t v1, vec4_t v2)
+{
+	v1.x *= v2.x;
+	v1.y *= v2.y;
+	v1.z *= v2.z;
+	v1.w *= v2.w;
+	return v1;
+}
+
+static inline vec4_t v4_scale(vec4_t v, scalar_t s)
+{
+	v.x *= s;
+	v.y *= s;
+	v.z *= s;
+	v.w *= s;
+	return v;
+}
+
+static inline scalar_t v4_dot(vec4_t v1, vec4_t v2)
+{
+	return v1.x * v2.x + v1.y * v2.y + v1.z * v2.z + v1.w * v2.w;
+}
+
+static inline scalar_t v4_length(vec4_t v)
+{
+	return sqrt(v.x * v.x + v.y * v.y + v.z * v.z + v.w * v.w);
+}
+
+static inline scalar_t v4_length_sq(vec4_t v)
+{
+	return v.x * v.x + v.y * v.y + v.z * v.z + v.w * v.w;
+}
+
+static inline vec4_t v4_normalize(vec4_t v)
+{
+	scalar_t len = sqrt(v.x * v.x + v.y * v.y + v.z * v.z + v.w * v.w);
+	v.x /= len;
+	v.y /= len;
+	v.z /= len;
+	v.w /= len;
+	return v;
+}
+
+static inline vec4_t v4_transform(vec4_t v, mat4_t m)
+{
+	vec4_t res;
+	res.x = m[0][0] * v.x + m[0][1] * v.y + m[0][2] * v.z + m[0][3] * v.w;
+	res.y = m[1][0] * v.x + m[1][1] * v.y + m[1][2] * v.z + m[1][3] * v.w;
+	res.z = m[2][0] * v.x + m[2][1] * v.y + m[2][2] * v.z + m[2][3] * v.w;
+	res.w = m[3][0] * v.x + m[3][1] * v.y + m[3][2] * v.z + m[3][3] * v.w;
+	return res;
+}
+
+#ifdef __cplusplus
+}	/* extern "C" */
+
+
+/* --------------- C++ part -------------- */
+
+inline scalar_t &Vector2::operator [](int elem) {
+	return elem ? y : x;
+}
+
+inline const scalar_t &Vector2::operator [](int elem) const {
+	return elem ? y : x;
+}
+
+inline Vector2 operator -(const Vector2 &vec) {
+	return Vector2(-vec.x, -vec.y);
+}
+
+inline scalar_t dot_product(const Vector2 &v1, const Vector2 &v2) {
+	return v1.x * v2.x + v1.y * v2.y;
+}
+
+inline Vector2 operator +(const Vector2 &v1, const Vector2 &v2) {
+	return Vector2(v1.x + v2.x, v1.y + v2.y);
+}
+
+inline Vector2 operator -(const Vector2 &v1, const Vector2 &v2) {
+	return Vector2(v1.x - v2.x, v1.y - v2.y);
+}
+
+inline Vector2 operator *(const Vector2 &v1, const Vector2 &v2) {
+	return Vector2(v1.x * v2.x, v1.y * v2.y);
+}
+
+inline Vector2 operator /(const Vector2 &v1, const Vector2 &v2) {
+	return Vector2(v1.x / v2.x, v1.y / v2.y);
+}
+
+inline bool operator ==(const Vector2 &v1, const Vector2 &v2) {
+	return (fabs(v1.x - v2.x) < XSMALL_NUMBER) && (fabs(v1.y - v2.x) < XSMALL_NUMBER);
+}
+
+inline void operator +=(Vector2 &v1, const Vector2 &v2) {
+	v1.x += v2.x;
+	v1.y += v2.y;
+}
+
+inline void operator -=(Vector2 &v1, const Vector2 &v2) {
+	v1.x -= v2.x;
+	v1.y -= v2.y;
+}
+
+inline void operator *=(Vector2 &v1, const Vector2 &v2) {
+	v1.x *= v2.x;
+	v1.y *= v2.y;
+}
+
+inline void operator /=(Vector2 &v1, const Vector2 &v2) {
+	v1.x /= v2.x;
+	v1.y /= v2.y;
+}
+
+inline Vector2 operator +(const Vector2 &vec, scalar_t scalar) {
+	return Vector2(vec.x + scalar, vec.y + scalar);
+}
+
+inline Vector2 operator +(scalar_t scalar, const Vector2 &vec) {
+	return Vector2(vec.x + scalar, vec.y + scalar);
+}
+
+inline Vector2 operator -(scalar_t scalar, const Vector2 &vec) {
+	return Vector2(vec.x - scalar, vec.y - scalar);
+}
+
+inline Vector2 operator *(const Vector2 &vec, scalar_t scalar) {
+	return Vector2(vec.x * scalar, vec.y * scalar);
+}
+
+inline Vector2 operator *(scalar_t scalar, const Vector2 &vec) {
+	return Vector2(vec.x * scalar, vec.y * scalar);
+}
+
+inline Vector2 operator /(const Vector2 &vec, scalar_t scalar) {
+	return Vector2(vec.x / scalar, vec.y / scalar);
+}
+
+inline void operator +=(Vector2 &vec, scalar_t scalar) {
+	vec.x += scalar;
+	vec.y += scalar;
+}
+
+inline void operator -=(Vector2 &vec, scalar_t scalar) {
+	vec.x -= scalar;
+	vec.y -= scalar;
+}
+
+inline void operator *=(Vector2 &vec, scalar_t scalar) {
+	vec.x *= scalar;
+	vec.y *= scalar;
+}
+
+inline void operator /=(Vector2 &vec, scalar_t scalar) {
+	vec.x /= scalar;
+	vec.y /= scalar;
+}
+
+inline scalar_t Vector2::length() const {
+	return sqrt(x*x + y*y);
+}
+
+inline scalar_t Vector2::length_sq() const {
+	return x*x + y*y;
+}
+
+inline Vector2 lerp(const Vector2 &a, const Vector2 &b, scalar_t t)
+{
+	return a + (b - a) * t;
+}
+
+inline Vector2 catmull_rom_spline(const Vector2 &v0, const Vector2 &v1,
+		const Vector2 &v2, const Vector2 &v3, scalar_t t)
+{
+	scalar_t spline(scalar_t, scalar_t, scalar_t, scalar_t, scalar_t);
+	scalar_t x = spline(v0.x, v1.x, v2.x, v3.x, t);
+	scalar_t y = spline(v0.y, v1.y, v2.y, v3.y, t);
+	return Vector2(x, y);
+}
+
+
+/* ------------- Vector3 -------------- */
+
+inline scalar_t &Vector3::operator [](int elem) {
+	return elem ? (elem == 1 ? y : z) : x;
+}
+
+inline const scalar_t &Vector3::operator [](int elem) const {
+	return elem ? (elem == 1 ? y : z) : x;
+}
+
+/* unary operations */
+inline Vector3 operator -(const Vector3 &vec) {
+	return Vector3(-vec.x, -vec.y, -vec.z);
+}
+
+/* binary vector (op) vector operations */
+inline scalar_t dot_product(const Vector3 &v1, const Vector3 &v2) {
+	return v1.x * v2.x + v1.y * v2.y + v1.z * v2.z;
+}
+
+inline Vector3 cross_product(const Vector3 &v1, const Vector3 &v2) {
+	return Vector3(v1.y * v2.z - v1.z * v2.y,  v1.z * v2.x - v1.x * v2.z,  v1.x * v2.y - v1.y * v2.x);
+}
+
+
+inline Vector3 operator +(const Vector3 &v1, const Vector3 &v2) {
+	return Vector3(v1.x + v2.x, v1.y + v2.y, v1.z + v2.z);
+}
+
+inline Vector3 operator -(const Vector3 &v1, const Vector3 &v2) {
+	return Vector3(v1.x - v2.x, v1.y - v2.y, v1.z - v2.z);
+}
+
+inline Vector3 operator *(const Vector3 &v1, const Vector3 &v2) {
+	return Vector3(v1.x * v2.x, v1.y * v2.y, v1.z * v2.z);
+}
+
+inline Vector3 operator /(const Vector3 &v1, const Vector3 &v2) {
+	return Vector3(v1.x / v2.x, v1.y / v2.y, v1.z / v2.z);
+}
+
+inline bool operator ==(const Vector3 &v1, const Vector3 &v2) {
+	return (fabs(v1.x - v2.x) < XSMALL_NUMBER) && (fabs(v1.y - v2.y) < XSMALL_NUMBER) && (fabs(v1.z - v2.z) < XSMALL_NUMBER);
+}
+
+inline void operator +=(Vector3 &v1, const Vector3 &v2) {
+	v1.x += v2.x;
+	v1.y += v2.y;
+	v1.z += v2.z;
+}
+
+inline void operator -=(Vector3 &v1, const Vector3 &v2) {
+	v1.x -= v2.x;
+	v1.y -= v2.y;
+	v1.z -= v2.z;
+}
+
+inline void operator *=(Vector3 &v1, const Vector3 &v2) {
+	v1.x *= v2.x;
+	v1.y *= v2.y;
+	v1.z *= v2.z;
+}
+
+inline void operator /=(Vector3 &v1, const Vector3 &v2) {
+	v1.x /= v2.x;
+	v1.y /= v2.y;
+	v1.z /= v2.z;
+}
+/* binary vector (op) scalar and scalar (op) vector operations */
+inline Vector3 operator +(const Vector3 &vec, scalar_t scalar) {
+	return Vector3(vec.x + scalar, vec.y + scalar, vec.z + scalar);
+}
+
+inline Vector3 operator +(scalar_t scalar, const Vector3 &vec) {
+	return Vector3(vec.x + scalar, vec.y + scalar, vec.z + scalar);
+}
+
+inline Vector3 operator -(const Vector3 &vec, scalar_t scalar) {
+	return Vector3(vec.x - scalar, vec.y - scalar, vec.z - scalar);
+}
+
+inline Vector3 operator *(const Vector3 &vec, scalar_t scalar) {
+	return Vector3(vec.x * scalar, vec.y * scalar, vec.z * scalar);
+}
+
+inline Vector3 operator *(scalar_t scalar, const Vector3 &vec) {
+	return Vector3(vec.x * scalar, vec.y * scalar, vec.z * scalar);
+}
+
+inline Vector3 operator /(const Vector3 &vec, scalar_t scalar) {
+	return Vector3(vec.x / scalar, vec.y / scalar, vec.z / scalar);
+}
+
+inline void operator +=(Vector3 &vec, scalar_t scalar) {
+	vec.x += scalar;
+	vec.y += scalar;
+	vec.z += scalar;
+}
+
+inline void operator -=(Vector3 &vec, scalar_t scalar) {
+	vec.x -= scalar;
+	vec.y -= scalar;
+	vec.z -= scalar;
+}
+
+inline void operator *=(Vector3 &vec, scalar_t scalar) {
+	vec.x *= scalar;
+	vec.y *= scalar;
+	vec.z *= scalar;
+}
+
+inline void operator /=(Vector3 &vec, scalar_t scalar) {
+	vec.x /= scalar;
+	vec.y /= scalar;
+	vec.z /= scalar;
+}
+
+inline scalar_t Vector3::length() const {
+	return sqrt(x*x + y*y + z*z);
+}
+inline scalar_t Vector3::length_sq() const {
+	return x*x + y*y + z*z;
+}
+
+inline Vector3 lerp(const Vector3 &a, const Vector3 &b, scalar_t t) {
+	return a + (b - a) * t;
+}
+
+inline Vector3 catmull_rom_spline(const Vector3 &v0, const Vector3 &v1,
+		const Vector3 &v2, const Vector3 &v3, scalar_t t)
+{
+	scalar_t spline(scalar_t, scalar_t, scalar_t, scalar_t, scalar_t);
+	scalar_t x = spline(v0.x, v1.x, v2.x, v3.x, t);
+	scalar_t y = spline(v0.y, v1.y, v2.y, v3.y, t);
+	scalar_t z = spline(v0.z, v1.z, v2.z, v3.z, t);
+	return Vector3(x, y, z);
+}
+
+/* ----------- Vector4 ----------------- */
+
+inline scalar_t &Vector4::operator [](int elem) {
+	return elem ? (elem == 1 ? y : (elem == 2 ? z : w)) : x;
+}
+
+inline const scalar_t &Vector4::operator [](int elem) const {
+	return elem ? (elem == 1 ? y : (elem == 2 ? z : w)) : x;
+}
+
+inline Vector4 operator -(const Vector4 &vec) {
+	return Vector4(-vec.x, -vec.y, -vec.z, -vec.w);
+}
+
+inline scalar_t dot_product(const Vector4 &v1, const Vector4 &v2) {
+	return v1.x * v2.x + v1.y * v2.y + v1.z * v2.z + v1.w * v2.w;
+}
+
+inline Vector4 cross_product(const Vector4 &v1, const Vector4 &v2, const Vector4 &v3) {
+	scalar_t a, b, c, d, e, f;       /* Intermediate Values */
+    Vector4 result;
+
+    /* Calculate intermediate values. */
+    a = (v2.x * v3.y) - (v2.y * v3.x);
+    b = (v2.x * v3.z) - (v2.z * v3.x);
+    c = (v2.x * v3.w) - (v2.w * v3.x);
+    d = (v2.y * v3.z) - (v2.z * v3.y);
+    e = (v2.y * v3.w) - (v2.w * v3.y);
+    f = (v2.z * v3.w) - (v2.w * v3.z);
+
+    /* Calculate the result-vector components. */
+    result.x =   (v1.y * f) - (v1.z * e) + (v1.w * d);
+    result.y = - (v1.x * f) + (v1.z * c) - (v1.w * b);
+    result.z =   (v1.x * e) - (v1.y * c) + (v1.w * a);
+    result.w = - (v1.x * d) + (v1.y * b) - (v1.z * a);
+    return result;
+}
+
+inline Vector4 operator +(const Vector4 &v1, const Vector4 &v2) {
+	return Vector4(v1.x + v2.x, v1.y + v2.y, v1.z + v2.z, v1.w + v2.w);
+}
+
+inline Vector4 operator -(const Vector4 &v1, const Vector4 &v2) {
+	return Vector4(v1.x - v2.x, v1.y - v2.y, v1.z - v2.z, v1.w - v2.w);
+}
+
+inline Vector4 operator *(const Vector4 &v1, const Vector4 &v2) {
+	return Vector4(v1.x * v2.x, v1.y * v2.y, v1.z * v2.z, v1.w * v2.w);
+}
+
+inline Vector4 operator /(const Vector4 &v1, const Vector4 &v2) {
+	return Vector4(v1.x / v2.x, v1.y / v2.y, v1.z / v2.z, v1.w / v2.w);
+}
+
+inline bool operator ==(const Vector4 &v1, const Vector4 &v2) {
+	return	(fabs(v1.x - v2.x) < XSMALL_NUMBER) &&
+			(fabs(v1.y - v2.y) < XSMALL_NUMBER) &&
+			(fabs(v1.z - v2.z) < XSMALL_NUMBER) &&
+			(fabs(v1.w - v2.w) < XSMALL_NUMBER);
+}
+
+inline void operator +=(Vector4 &v1, const Vector4 &v2) {
+	v1.x += v2.x;
+	v1.y += v2.y;
+	v1.z += v2.z;
+	v1.w += v2.w;
+}
+
+inline void operator -=(Vector4 &v1, const Vector4 &v2) {
+	v1.x -= v2.x;
+	v1.y -= v2.y;
+	v1.z -= v2.z;
+	v1.w -= v2.w;
+}
+
+inline void operator *=(Vector4 &v1, const Vector4 &v2) {
+	v1.x *= v2.x;
+	v1.y *= v2.y;
+	v1.z *= v2.z;
+	v1.w *= v2.w;
+}
+
+inline void operator /=(Vector4 &v1, const Vector4 &v2) {
+	v1.x /= v2.x;
+	v1.y /= v2.y;
+	v1.z /= v2.z;
+	v1.w /= v2.w;
+}
+
+/* binary vector (op) scalar and scalar (op) vector operations */
+inline Vector4 operator +(const Vector4 &vec, scalar_t scalar) {
+	return Vector4(vec.x + scalar, vec.y + scalar, vec.z + scalar, vec.w + scalar);
+}
+
+inline Vector4 operator +(scalar_t scalar, const Vector4 &vec) {
+	return Vector4(vec.x + scalar, vec.y + scalar, vec.z + scalar, vec.w + scalar);
+}
+
+inline Vector4 operator -(const Vector4 &vec, scalar_t scalar) {
+	return Vector4(vec.x - scalar, vec.y - scalar, vec.z - scalar, vec.w - scalar);
+}
+
+inline Vector4 operator *(const Vector4 &vec, scalar_t scalar) {
+	return Vector4(vec.x * scalar, vec.y * scalar, vec.z * scalar, vec.w * scalar);
+}
+
+inline Vector4 operator *(scalar_t scalar, const Vector4 &vec) {
+	return Vector4(vec.x * scalar, vec.y * scalar, vec.z * scalar, vec.w * scalar);
+}
+
+inline Vector4 operator /(const Vector4 &vec, scalar_t scalar) {
+	return Vector4(vec.x / scalar, vec.y / scalar, vec.z / scalar, vec.w / scalar);
+}
+
+inline void operator +=(Vector4 &vec, scalar_t scalar) {
+	vec.x += scalar;
+	vec.y += scalar;
+	vec.z += scalar;
+	vec.w += scalar;
+}
+
+inline void operator -=(Vector4 &vec, scalar_t scalar) {
+	vec.x -= scalar;
+	vec.y -= scalar;
+	vec.z -= scalar;
+	vec.w -= scalar;
+}
+
+inline void operator *=(Vector4 &vec, scalar_t scalar) {
+	vec.x *= scalar;
+	vec.y *= scalar;
+	vec.z *= scalar;
+	vec.w *= scalar;
+}
+
+inline void operator /=(Vector4 &vec, scalar_t scalar) {
+	vec.x /= scalar;
+	vec.y /= scalar;
+	vec.z /= scalar;
+	vec.w /= scalar;
+}
+
+inline scalar_t Vector4::length() const {
+	return sqrt(x*x + y*y + z*z + w*w);
+}
+inline scalar_t Vector4::length_sq() const {
+	return x*x + y*y + z*z + w*w;
+}
+
+inline Vector4 lerp(const Vector4 &v0, const Vector4 &v1, scalar_t t)
+{
+	return v0 + (v1 - v0) * t;
+}
+
+inline Vector4 catmull_rom_spline(const Vector4 &v0, const Vector4 &v1,
+		const Vector4 &v2, const Vector4 &v3, scalar_t t)
+{
+	scalar_t spline(scalar_t, scalar_t, scalar_t, scalar_t, scalar_t);
+	scalar_t x = spline(v0.x, v1.x, v2.x, v3.x, t);
+	scalar_t y = spline(v0.y, v1.y, v2.y, v3.y, t);
+	scalar_t z = spline(v0.z, v1.z, v2.z, v3.z, t);
+	scalar_t w = spline(v0.w, v1.w, v2.w, v3.w, t);
+	return Vector4(x, y, z, w);
+}
+
+#endif	/* __cplusplus */
diff -r c0ae8e668447 -r fb4c9641059f libs/vmath/vmath.inl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libs/vmath/vmath.inl	Thu Sep 08 08:31:15 2011 +0300
@@ -0,0 +1,29 @@
+#include <stdlib.h>
+
+/** Generates a random number in [0, range) */
+static inline scalar_t frand(scalar_t range)
+{
+	return range * (scalar_t)rand() / (scalar_t)RAND_MAX;
+}
+
+/** Generates a random vector on the surface of a sphere */
+static inline vec3_t sphrand(scalar_t rad)
+{
+	scalar_t u = (scalar_t)rand() / RAND_MAX;
+	scalar_t v = (scalar_t)rand() / RAND_MAX;
+
+	scalar_t theta = 2.0 * M_PI * u;
+	scalar_t phi = acos(2.0 * v - 1.0);
+
+	vec3_t res;
+	res.x = rad * cos(theta) * sin(phi);
+	res.y = rad * sin(theta) * sin(phi);
+	res.z = rad * cos(phi);
+	return res;
+}
+
+/** linear interpolation */
+static inline scalar_t lerp(scalar_t a, scalar_t b, scalar_t t)
+{
+	return a + (b - a) * t;
+}
diff -r c0ae8e668447 -r fb4c9641059f sdr/text.p.glsl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/sdr/text.p.glsl	Thu Sep 08 08:31:15 2011 +0300
@@ -0,0 +1,22 @@
+#ifdef GL_ES
+precision highp float;
+#endif
+
+uniform sampler2D tex;
+
+varying vec4 color;
+varying vec3 vpos;
+varying vec2 tc;
+
+void main()
+{
+	vec4 tcol = texture2D(tex, tc);
+
+	float fog = exp(-(0.2 * -vpos.z));
+
+	float alpha = fog * color.a;
+
+	vec4 color = vec4(1.0, 0.3, 0.2, tcol.x * alpha);
+
+	gl_FragColor = color;
+}
diff -r c0ae8e668447 -r fb4c9641059f sdr/text.v.glsl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/sdr/text.v.glsl	Thu Sep 08 08:31:15 2011 +0300
@@ -0,0 +1,21 @@
+attribute vec4 attr_vertex, attr_texcoord, attr_color;
+
+uniform mat4 matrix_modelview, matrix_projection;
+uniform float idx;
+
+varying vec4 color;
+varying vec3 vpos;
+varying vec2 tc;
+
+void main()
+{
+	mat4 mvp = matrix_projection * matrix_modelview;
+	gl_Position = mvp * attr_vertex;
+
+	vpos = (matrix_modelview * attr_vertex).xyz;
+
+	float sz = 1.0 / 17.0;
+	tc = vec2(attr_texcoord.x, (attr_texcoord.y + idx) * sz);
+
+	color = attr_color;
+}
diff -r c0ae8e668447 -r fb4c9641059f sdr/tunnel.p.glsl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/sdr/tunnel.p.glsl	Thu Sep 08 08:31:15 2011 +0300
@@ -0,0 +1,52 @@
+#ifdef GL_ES
+precision highp float;
+#endif
+
+uniform sampler2D tex, tex_norm;
+
+varying vec3 vpos, normal, tangent;
+varying vec4 color, tc;
+varying vec3 lpos;
+
+void main()
+{
+	vec4 fog_color = vec4(0.0, 0.0, 0.0, 1.0);
+	vec3 tcol = texture2D(tex, tc.xy * vec2(1.0, -1.0)).xyz;
+	vec3 tnorm = texture2D(tex_norm, tc.xy * vec2(1.0, -1.0)).xyz;
+
+	float fog = exp(-(0.2 * -vpos.z));
+	
+	vec3 ldir = lpos - vpos;
+	float ldist = length(ldir);
+
+	/* bring the light direction to tangent space */
+	vec3 norm = normalize(normal);
+	vec3 tang = normalize(tangent);
+	vec3 bitan = cross(norm, tang);
+
+	mat3 tbn_xform = mat3(tang.x, bitan.x, norm.x,
+			tang.y, bitan.y, norm.y,
+			tang.z, bitan.z, norm.z);
+
+	vec3 l = normalize(tbn_xform * ldir);
+
+	/* grab normal from the normalmap */
+	vec3 n = normalize(tnorm * 2.0 - 1.0);
+
+	float diffuse = max(dot(n, l), 0.0);
+
+	/* blinn-phong specular */
+	vec3 v = normalize(-vpos);
+	vec3 h = normalize(v + l);
+	float specular = pow(max(dot(n, h), 0.0), 60.0);
+
+	vec3 amb = vec3(0.02, 0.02, 0.02);
+
+	float att = clamp(1.0 / (0.5 * (ldist * ldist)), 0.0, 1.0);
+
+	vec3 dif = tcol * diffuse * att;
+	vec3 spec = vec3(0.6, 0.6, 0.6) * specular * att;
+
+	//gl_FragColor = 0.5 * tcol + 0.5 * tnorm;//mix(fog_color, tcol, fog);
+	gl_FragColor = vec4(fog * (amb + dif + spec), 1.0);
+}
diff -r c0ae8e668447 -r fb4c9641059f sdr/tunnel.v.glsl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/sdr/tunnel.v.glsl	Thu Sep 08 08:31:15 2011 +0300
@@ -0,0 +1,27 @@
+attribute vec4 attr_vertex, attr_color, attr_texcoord;
+attribute vec4 attr_tangent;
+attribute vec3 attr_normal;
+
+uniform mat4 matrix_modelview, matrix_projection, matrix_texture;
+uniform mat3 normmat;
+uniform float t;
+uniform vec4 light_pos;
+
+varying vec3 vpos, normal, tangent;
+varying vec4 tc;
+varying vec3 lpos;
+
+void main()
+{
+	mat4 mvp = matrix_projection * matrix_modelview;
+	gl_Position = mvp * attr_vertex;
+
+	vpos = (matrix_modelview * attr_vertex).xyz;
+
+	normal = normmat * attr_normal;
+	tangent = normmat * attr_tangent.xyz;
+
+	lpos = (matrix_modelview * light_pos).xyz;
+
+	tc = matrix_texture * attr_texcoord;
+}