source: opengl-game/shaders/ship.frag@ 683dd55

feature/imgui-sdl points-test
Last change on this file since 683dd55 was 1908591, checked in by Dmitry Portnoy <dmp1488@…>, 5 years ago

Update the OpenGLReference project to include the shaders that were moved to the gl-shaders folder, and update the VulkanGame project to include the ship shader copied from the original OpenGL game

  • Property mode set to 100644
File size: 1.8 KB
Line 
1#version 450
2#extension GL_ARB_separate_shader_objects : enable
3
4//in vec3 position_eye, normal_eye, color, light_position_eye, light2_position_eye;
5layout(location = 0) in vec3 position_eye;
6layout(location = 1) in vec3 color;
7
8layout(location = 0) out vec4 outColor;
9
10/*
11// fixed point light properties
12vec3 Ls = vec3(1.0, 1.0, 1.0);
13vec3 Ld = vec3(1.0, 1.0, 1.0);
14vec3 La = vec3(0.2, 0.2, 0.2);
15
16// surface reflectance
17vec3 Ks = vec3(1.0, 1.0, 1.0);
18vec3 Kd = vec3(1.0, 1.5, 1.0);
19vec3 Ka = vec3(0.2, 0.2, 0.2);
20float specular_exponent = 100.0; // specular 'power'
21*/
22
23void main() {
24 /*
25 // ambient intensity
26 vec3 Ia = La * Ka;
27
28 // ambient intensity
29 vec3 Ia2 = La * Ka;
30
31 vec3 direction_to_light_eye = normalize(light_position_eye - position_eye);
32 float dot_prod = max(dot(direction_to_light_eye, normal_eye), 0.0);
33
34 // diffuse intensity
35 vec3 Id = Ld * color * dot_prod;
36
37 vec3 direction_to_light2_eye = normalize(light2_position_eye - position_eye);
38 float dot_prod2 = max(dot(direction_to_light2_eye, normal_eye), 0.0);
39
40 // diffuse intensity
41 vec3 Id2 = Ld * color * dot_prod2;
42
43 vec3 surface_to_viewer_eye = normalize(-position_eye);
44
45 vec3 reflection_eye = reflect(-direction_to_light_eye, normal_eye);
46 float dot_prod_specular = max(dot(reflection_eye, surface_to_viewer_eye), 0.0);
47 float specular_factor = pow(dot_prod_specular, specular_exponent);
48
49 vec3 reflection_eye2 = reflect(-direction_to_light2_eye, normal_eye);
50 float dot_prod_specular2 = max(dot(reflection_eye2, surface_to_viewer_eye), 0.0);
51 float specular_factor2 = pow(dot_prod_specular2, specular_exponent);
52
53 // specular intensity
54 vec3 Is = Ls * Ks * specular_factor;
55 vec3 Is2 = Ls * Ks * specular_factor2;
56
57 outColor = vec4((Is + Id + Ia + Is2 + Id2 + Ia2)/2, 1.0);
58 */
59 outColor = vec4(color, 1.0);
60}
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