vertex_shader
	"varying vec2 texcoord;
	varying vec3 shadowcoord;
	varying vec3 normal;
	varying vec3 cam_dir;

	void main()
	{
		gl_Position = ftransform();
		texcoord = gl_MultiTexCoord0.xy;
		vec4 eye_pos = gl_ModelViewMatrix*gl_Vertex;
		shadowcoord = vec3(dot(gl_EyePlaneS[3], eye_pos), dot(gl_EyePlaneT[3], eye_pos), dot(gl_EyePlaneR[3], eye_pos));
		normal = normalize(gl_NormalMatrix*gl_Normal);
		cam_dir = -normalize((gl_ModelViewMatrix*gl_Vertex).xyz);
	}";

fragment_shader
	"uniform sampler2D texture;
	uniform sampler2D texattr;
	uniform sampler2DShadow shadow;
	varying vec2 texcoord;
	varying vec3 shadowcoord;
	varying vec3 normal;
	varying vec3 cam_dir;

	void main()
	{
		vec3 color = texture2D(texture, texcoord).rgb;
		vec3 attr = texture2D(texattr, texcoord).rgb*vec3(4.0, 128.0, 64.0);
		vec3 nnorm = normalize(normal);
		float shade = shadow2D(shadow, shadowcoord).r;
		float diffuse = 0.3+max(dot(gl_LightSource[0].position.xyz, nnorm), 0.0)*0.7*shade;
		vec3 half_vec = normalize(cam_dir+gl_LightSource[0].position.xyz);
		float specular = pow(max(dot(nnorm, half_vec), 0.0), attr.g)*shade;
		gl_FragColor = vec4((diffuse+specular*attr.r+attr.b)*color, 1.0);
	}";