#include "/lib/settings.glsl"
#include "/lib/res_params.glsl"

/*
!! DO NOT REMOVE !!
This code is from Chocapic13' shaders
Read the terms of modification and sharing before changing something below please !
!! DO NOT REMOVE !!
*/

varying vec4 color;
varying vec2 texcoord;

uniform vec2 texelSize;
uniform int framemod8;
const vec2[8] offsets = vec2[8](vec2(1./8.,-3./8.),
							vec2(-1.,3.)/8.,
							vec2(5.0,1.)/8.,
							vec2(-3,-5.)/8.,
							vec2(-5.,5.)/8.,
							vec2(-7.,-1.)/8.,
							vec2(3,7.)/8.,
							vec2(7.,-7.)/8.);
						
//////////////////////////////VOID MAIN//////////////////////////////
//////////////////////////////VOID MAIN//////////////////////////////
//////////////////////////////VOID MAIN//////////////////////////////
//////////////////////////////VOID MAIN//////////////////////////////
//////////////////////////////VOID MAIN//////////////////////////////

void main() {

	gl_Position = ftransform();

	texcoord = (gl_MultiTexCoord0).xy;
	#ifdef ENCHANT_GLINT
		texcoord = (gl_TextureMatrix[0] * gl_MultiTexCoord0).st;
		// float exposure = texelFetch2D(colortex4, ivec2(10,37),0).r;
	#endif
	
	color = gl_Color;
	#ifdef BEACON_BEAM
		if(gl_Color.a < 1.0) gl_Position = vec4(10,10,10,0);
	#endif



	#ifdef TAA_UPSCALING
		gl_Position.xy = gl_Position.xy * RENDER_SCALE + RENDER_SCALE * gl_Position.w - gl_Position.w;
	#endif
	#ifdef TAA
	    gl_Position.xy += offsets[framemod8] * gl_Position.w*texelSize;
	#endif
}