Changeset 60578ce in opengl-game for vulkan-game.hpp

Timestamp:

Dec 18, 2019, 2:48:28 AM (5 years ago)

Author:

Dmitry Portnoy <dmp1488@…>

Branches:

feature/imgui-sdl, master, points-test

Children:

a79be34

Parents:

7c929fc

Message:

In VulkanGame, make lighting work correctly in the ship shader with the model, view, and projection matrices all being applied

File:

• vulkan-game.hpp (modified) (3 diffs)

vulkan-game.hpp

@@ -1 +1 @@
 #ifndef _VULKAN_GAME_H
 #define _VULKAN_GAME_H
+
+#define GLM_FORCE_RADIANS
+#define GLM_FORCE_DEPTH_ZERO_TO_ONE // Since, in Vulkan, the depth range is 0 to 1 instead of -1 to 1
+#define GLM_FORCE_LEFT_HANDED
 
 #include <glm/glm.hpp>
@@ -57 +61 @@
       const float NEAR_CLIP = 0.1f;
       const float FAR_CLIP = 100.0f;
-      const float FOV_ANGLE = 67.0f;
+      const float FOV_ANGLE = 67.0f; // means the camera lens goes from -33 deg to 33 def
 
       vec3 cam_pos;
@@ -203 +207 @@
       vec3 p3 = vertices[i+2].pos;
 
-      vec3 normal = normalize(cross(p2 - p1, p3 - p1));
-      //normal.z = -normal.z;
+      // flip the y axis so that +y points up
+      vec3 normal = -normalize(cross(p2 - p1, p3 - p1));
 
       // Add the same normal for all 3 vertices