#version 330

// Matrices
uniform mat4 modelViewMatrix;
uniform mat4 MVP;
uniform mat4 normalMatrix;
uniform mat4 viewMatrix;

layout(location = 0)in vec3 inPosition;
layout(location = 1)in vec3 inNormal;
layout(location = 2)in vec4 inTexCoord;

out vec3 varNormal;
out vec2 varTexCoord;

/*void computeLightingVectorsInView(in vec3 posInView, in vec3 lightPosition, out vec3 lightDir, out vec3 halfVec){
	lightDir = vec3(viewMatrix*vec4(lightPosition, 1.0)) - posInView;
	halfVec = normalize(lightDir - posInView);
	lightDir = normalize(lightDir);
}*/

void main(void) {
	// normales corrigées (en fonction de la vue)
	varNormal = normalize(vec3(normalMatrix*vec4(inNormal,0)));

	// coordonnées de texture
	varTexCoord = inTexCoord.xy;

	// position du vertex
	gl_Position = MVP*vec4(inPosition, 1.0);
}