Changeset 9dd2eb7 in opengl-game for texture.vert

Timestamp:

Apr 28, 2018, 2:29:20 AM (6 years ago)

Author:

Dmitry Portnoy <dmp1488@…>

Branches:

feature/imgui-sdl, master, points-test

Children:

9f4986b

Parents:

d9f99b2

Message:

Implement Phong shading in the color and texture shaders

File:

• texture.vert (modified) (1 diff)

texture.vert

@@ -5 +5 @@
 layout(location = 0) in vec3 vertex_position;
 layout(location = 1) in vec2 vt;
+layout(location = 2) in vec3 vertex_normal;
 
 out vec2 texture_coordinates;
+out vec3 position_eye, normal_eye, light_position_eye;
+
+// fixed point light position
+vec3 light_position_world = vec3(0.0, 0.0, 2.0);
 
 void main() {
+  position_eye = vec3(view * model * vec4(vertex_position, 1.0));
+  normal_eye = vec3(view * model * vec4 (vertex_normal, 0.0));
   texture_coordinates = vt;
-  gl_Position = proj * view * model * vec4(vertex_position, 1.0);
+  light_position_eye = vec3(view * vec4(light_position_world, 1.0));
+
+  gl_Position = proj * vec4(position_eye, 1.0);
 }