world_aligned.gdshader

// by Mason "Belmondo"
// based off of Mohsen Zare's implementation

shader_type spatial;

render_mode cull_back, depth_draw_always, specular_disabled;

uniform sampler2D albedo_texture : filter_nearest, repeat_enable, source_color;
uniform vec2 uv1_offset;

varying vec3 pos;
varying vec3 normal;
varying vec2 uv;

void vertex() {
	pos = (MODEL_MATRIX * vec4(VERTEX, 1.0)).xyz;
	normal = abs(normalize(MODEL_NORMAL_MATRIX * NORMAL));

	uv  = mix(pos.xy, pos.zy, round(normal.x));
	uv = mix(uv, pos.xz, round(normal.y));
	uv.x *= sign(dot(NORMAL, vec3(-1, 1, 1)));
	uv.y *= sign(dot(normal, vec3(-1, 1, -1)));
	uv += uv1_offset;
}

void fragment() {
	vec4 color = texture(albedo_texture, uv);

	ALBEDO = color.rgb;

	if (color.a < 1.0) {
		ALPHA = color.a;
	}
}

//void light() {
//	// Called for every pixel for every light affecting the material.
//	// Uncomment to replace the default light processing function with this one.
//}