Changeset 25b47d7 in opengl-game for asteroid.vert

Timestamp:

Oct 17, 2018, 1:47:23 AM (6 years ago)

Author:

Dmitry Portnoy <dmp1488@…>

Branches:

feature/imgui-sdl, master, points-test

Children:

1e3dddf, 8e8aed6

Parents:

0e0f851

Message:

Correctly send the hp of each asteroid to the shader using a uniform array and allow the player to damage and destroy the asteroids with lasers.

File:

• asteroid.vert (modified) (2 diffs)

asteroid.vert

@@ -3 +3 @@
 #define MAX_NUM_OBJECTS 1024
 
-uniform mat4 view, proj, hp;
+uniform mat4 view, proj;
+uniform float hp[1016];
 
 layout (std140) uniform models {
   mat4 model_mats[MAX_NUM_OBJECTS];
 };
-
-/*
-layout (std140) uniform hp_uniform {
-  mat4 hp[MAX_NUM_OBJECTS];
-};
-*/
 
 layout(location = 0) in vec3 vertex_position;
@@ -29 +24 @@
   position_eye = vec3(view * model_mats[ubo_index] * vec4(vertex_position, 1.0));
   normal_eye = normalize(vec3(view * model_mats[ubo_index] * vec4(vertex_normal, 0.0)));
-  //color = vertex_color * (hp[ubo_index][0][0] * 10.0); //(hp[ubo_index*4] / 10.0);
-  color = vertex_color * (hp[0][0] * 2.0 / 10.0);
+
+  float hp_percent = hp[ubo_index] / 10.0;
+  vec3 damage_color = vec3(1.0, 0.0, 0.0);
+  color = (vertex_color * hp_percent) + (damage_color * (1.0 - hp_percent));
+
   light_position_eye = vec3(view * vec4(light_position_world, 1.0));
   light2_position_eye = vec3(view * vec4(light2_position_world, 1.0));