meemknight.ourCraft/resources/shaders/blockEntity.vert

#version 430 core


layout(location = 0) in vec3 shape;
layout(location = 1) in vec3 normal;
layout(location = 2) in vec2 uv;


uniform ivec3 u_entityPositionInt;
uniform vec3 u_entityPositionFloat;


uniform mat4 u_viewProjection;
uniform mat4 u_modelMatrix;
uniform ivec3 u_cameraPositionInt;
uniform vec3 u_cameraPositionFloat;
uniform int u_lightValue;

out vec2 v_uv;
flat out int v_id;
out vec3 v_vertexPosition;
out vec3 v_normals;

flat out float v_ambient;


void main()
{

	vec3 diffI = u_entityPositionInt - u_cameraPositionInt;
	vec3 diffF = diffI - u_cameraPositionFloat + u_entityPositionFloat;
	

	vec4 posViewSemi = vec4(diffF + vec3(u_modelMatrix * vec4(shape, 1)), 1);

	vec4 posProjection = u_viewProjection * posViewSemi;
	
	gl_Position = posProjection;
	v_uv = uv;
	v_id = gl_VertexID;

	v_vertexPosition = posViewSemi.xyz;

	v_normals = normalize((transpose(inverse(u_modelMatrix)) * vec4(normal, 0.0)).xyz);


	const float baseAmbient = 0.25;
	const float multiplier = 0.6;
	v_ambient = pow((u_lightValue/15.f) *  multiplier * (1.f-baseAmbient) + baseAmbient, 2.2);


}