#version 450

in vec3 in_vertex;
uniform mat4 mvp;
out vec4 fcolor;
out vec4 gl_Position;
out vec2 f_texcoord;

void main(void) {
	float pos_x = gl_InstanceID % 20;
	float pos_z = gl_InstanceID / 20;
	gl_Position = mvp * vec4(in_vertex.x + pos_x - 10, in_vertex.y - 1, in_vertex.z + pos_z - 10, 1.0);
	
 	fcolor = vec4(0.6, in_vertex.x / 10.0 + 0.4, in_vertex.z / 10.0 + 0.6, 1.0);
	f_texcoord = vec2(in_vertex.x, in_vertex.z);
}