GRK-Projekt/grafika_projekt/shaders/terrainShader.vert

#version 400 core

layout(location = 3) in vec3 position;
layout(location = 4) in vec2 textureCoordinates;
layout(location = 5) in vec3 normal;

out vec2 pass_textureCoordinates;
out vec3 surfaceNormal;
out vec3 toLightVector;
out vec3 toCameraVector;

uniform mat4 transformationMatrix;
uniform mat4 projectionMatrix;
uniform mat4 viewMatrix;
uniform vec3 lightDir;

void main(void){

	vec4 worldPosition = transformationMatrix * vec4(position,1.0);
	gl_Position = projectionMatrix * viewMatrix * worldPosition;
	pass_textureCoordinates = textureCoordinates * 40.0;
	
	surfaceNormal = (transformationMatrix * vec4(normal,0.0)).xyz;
	toLightVector = lightDir - worldPosition.xyz;
	toCameraVector = (inverse(viewMatrix) * vec4(0.0,0.0,0.0,1.0)).xyz - worldPosition.xyz;
	
	
}