Added support for rendering multiple lights, standardized shaders to use snake case for variables and camel case for functions, stubbed PBR material shader include.

assets/shaders/vertex/lighting.glsl

@@ -1,17 +1,24 @@
 #version 330 core
 @include "light_struct"
 
-layout (location = 0) in vec3 inPosition;
-layout (location = 1) in vec2 inTexCoords;
+layout (location = 0) in vec3 in_position;
+layout (location = 1) in vec2 in_tex_coords;
 
 uniform sampler2D diffuse, position, texcoord, normal, depth;
-uniform Light light[1];
+uniform int light_count;
+uniform Light lights[7];
 
-out vec2 outTexCoords;
-flat out Light outLight[1];
+out vec2 out_tex_coords;
+flat out int out_light_count;
+flat out Light out_lights[7];
 
 void main() {
-  gl_Position = vec4(inPosition.x, inPosition.y, inPosition.z, 1.0);
-  outTexCoords = inTexCoords;
-  outLight = light;
-}
+  gl_Position = vec4(in_position.x, in_position.y, in_position.z, 1.0);
+  out_tex_coords = in_tex_coords;
+  out_light_count = light_count;
+
+  for(int i = 0; i < light_count; i++)
+  {
+    out_lights[i] = lights[i];
+  }
+}