Start the lighting chapters

shaders/frag.glsl

@@ -1,13 +1,10 @@
 #version 330 core
 
-in vec2 tex_coords;
-
 out vec4 color;
 
-uniform float     mix_factor;
-uniform sampler2D texture0;
-uniform sampler2D texture1;
+uniform vec3 object_color;
+uniform vec3 light_color;
 
 void main() {
-  color = mix(texture(texture0, tex_coords), texture(texture1, tex_coords), mix_factor);
+  color = vec4(object_color * light_color, 1.0);
 };

shaders/light_frag.glsl

@@ -0,0 +1,7 @@
+#version 330 core
+
+out vec4 color;
+
+void main() {
+  color = vec4(1.0);
+}

shaders/vert.glsl

@@ -1,15 +1,11 @@
 #version 330 core
 
 layout(location=0) in vec3 position;
-layout(location=1) in vec2 uv;
 
 uniform mat4 model;
 uniform mat4 view;
 uniform mat4 projection;
 
-out vec2 tex_coords;
-
 void main() {
-  tex_coords  = uv;
   gl_Position = projection * view * model * vec4(position, 1.0);
 };