source: opengl-game/shaders/ship.vert@ 2d87297

feature/imgui-sdl points-test
Last change on this file since 2d87297 was a79be34, checked in by Dmitry Portnoy <dmitry.portnoy@…>, 5 years ago

Finish copying the ship pipeline to VulkanGame

  • Property mode set to 100644
File size: 1.4 KB
Line 
1#version 450
2#extension GL_ARB_separate_shader_objects : enable
3
4struct Object {
5 mat4 model;
6};
7
8layout (binding = 0) uniform UniformBufferObject {
9 mat4 view;
10 mat4 proj;
11} ubo;
12
13layout(binding = 1) readonly buffer StorageBufferObject {
14 Object objects[];
15} sbo;
16
17layout(location = 0) in vec3 vertex_position;
18layout(location = 1) in vec3 vertex_color;
19layout(location = 2) in vec3 vertex_normal;
20layout(location = 3) in uint obj_index;
21
22layout(location = 0) out vec3 position_eye;
23layout(location = 1) out vec3 color;
24layout(location = 2) out vec3 normal_eye;
25layout(location = 3) out vec3 light_position_eye;
26layout(location = 4) out vec3 light2_position_eye;
27
28// fixed point light positions
29vec3 light_position_world = vec3(0.0, 0.0, 2.0);
30vec3 light2_position_world = vec3(0.0, 1.5, -0.1);
31
32// TODO: This does not account for scaling in the model matrix
33// Check Anton's book to see how to fix this
34void main() {
35 position_eye = vec3(ubo.view * sbo.objects[obj_index].model * vec4(vertex_position, 1.0));
36
37 // Using 0.0 instead of 1.0 means translations won't effect the normal
38 normal_eye = normalize(vec3(ubo.view * sbo.objects[obj_index].model * vec4(vertex_normal, 0.0)));
39
40 color = vertex_color;
41
42 light_position_eye = vec3(ubo.view * vec4(light_position_world, 1.0));
43 light2_position_eye = vec3(ubo.view * vec4(light2_position_world, 1.0));
44
45 gl_Position = ubo.proj * vec4(position_eye, 1.0);
46}
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