#version 150

in vec3 position;
in vec2 texCoord;
in vec3 normal;
in vec4 tangent;
in vec4 color;

uniform mat4 projectionTransform;
uniform mat4 viewTransform;
uniform mat4 modelTransform;
uniform mat3 normalMatrix;
uniform vec4 materialColor;

out vec3 vertPosition;
out vec2 vertTexCoord;
out mat3 vertTBNMatrix;
out vec4 vertColor;

void main() {
	vec4 modelPosition = modelTransform * vec4(position, 1.0);
	vertPosition = vec3(modelPosition);
	vertTexCoord = texCoord;
	vertColor = color * materialColor;
	
	vec3 orientedNormal = normalMatrix * normal;
	vec3 tangentXYZ = normalMatrix * tangent.xyz;
	vec3 bitangent = tangent.w * cross(normal, tangentXYZ);
	vertTBNMatrix = mat3(tangentXYZ, bitangent, orientedNormal);
	
	gl_Position = projectionTransform * viewTransform * modelPosition;
}