Changeset 67527a5 in opengl-game for shaders/explosion.vert

Timestamp:

Jun 21, 2021, 4:12:08 PM (3 years ago)

Author:

Dmitry Portnoy <dportnoy@…>

Branches:

feature/imgui-sdl

Children:

27e580e

Parents:

b01b50c

git-author:

Dmitry Portnoy <dportnoy@…> (06/21/21 15:13:03)

git-committer:

Dmitry Portnoy <dportnoy@…> (06/21/21 16:12:08)

Message:

Switch all per-object buffers to be dynamic uniform buffers instead of shader storage buffers

File:

• shaders/explosion.vert (modified) (3 diffs)

shaders/explosion.vert

@@ -9 +9 @@
 };
 
-layout (binding = 0) uniform UniformBufferObject {
+layout (binding = 0) uniform camera_block {
    mat4 view;
    mat4 proj;
    float cur_time;
+} camera;
+
+layout(binding = 1) uniform ubo_block {
+   Object objects[1024];
 } ubo;
-
-layout(binding = 1) readonly buffer StorageBufferObject {
-   Object objects[];
-} sbo;
 
 layout(location = 0) in vec3 particle_start_velocity;
@@ -26 +26 @@
 
 void main() {
-   mat4 model = sbo.objects[obj_index].model;
-   float explosion_start_time = sbo.objects[obj_index].explosion_start_time;
-   float explosion_duration = sbo.objects[obj_index].explosion_duration;
-   bool deleted = sbo.objects[obj_index].deleted;
+   mat4 model = ubo.objects[obj_index].model;
+   float explosion_start_time = ubo.objects[obj_index].explosion_start_time;
+   float explosion_duration = ubo.objects[obj_index].explosion_duration;
+   bool deleted = ubo.objects[obj_index].deleted;
 
-   float t = ubo.cur_time - explosion_start_time - particle_start_time;
+   float t = camera.cur_time - explosion_start_time - particle_start_time;
 
    if (t < 0.0) {
@@ -56 +56 @@
       p += normalize(particle_start_velocity) * mod(t, explosion_duration) / explosion_duration * 0.3;
 
-      gl_Position = ubo.proj * ubo.view * model * vec4(p, 1.0);
+      gl_Position = camera.proj * camera.view * model * vec4(p, 1.0);
    }
    gl_PointSize = 10.0; // size in pixels