#version 330 core

#include <constants.glsl>

#define LIGHTING_TYPE LIGHTING_TYPE_TRANSMISSION

#define LIGHTING_REFLECTION_KIND LIGHTING_REFLECTION_KIND_SPECULAR

#if (FLUID_MODE == FLUID_MODE_CHEAP)
#define LIGHTING_TRANSPORT_MODE LIGHTING_TRANSPORT_MODE_IMPORTANCE
#elif (FLUID_MODE == FLUID_MODE_SHINY)
#define LIGHTING_TRANSPORT_MODE LIGHTING_TRANSPORT_MODE_RADIANCE
#endif

#define LIGHTING_DISTRIBUTION_SCHEME LIGHTING_DISTRIBUTION_SCHEME_MICROFACET

#define LIGHTING_DISTRIBUTION LIGHTING_DISTRIBUTION_BECKMANN

#include <globals.glsl>

in vec3 v_pos;

layout (std140)
uniform u_locals {
	vec4 nul;
};

out vec3 f_pos;

void main() {
	f_pos = v_pos;

	// TODO: Make this position-independent to avoid rounding error jittering
	gl_Position =
		proj_mat *
		view_mat *
		vec4(v_pos * 100000.0 + cam_pos.xyz, 1);
	gl_Position.z = 0.0;
}