First work with vulkano

res/shaders/main.frag

@@ -1,8 +0,0 @@
-#version 450
-
-layout (location = 0) in vec3 fragColor;
-layout (location = 0) out vec4 outColor;
-
-void main() {
-    outColor = vec4(fragColor, 1.0);
-}

res/shaders/main.vert

@@ -1 +0,0 @@
-#version 450

out gl_PerVertex {
    vec4 gl_Position;
};

layout (location = 0) out vec3 fragColor;

vec2 positions[3] = vec2[](
vec2(0.0, -0.5),
vec2(0.5, 0.5),
vec2(-0.5, 0.5)
);

vec3 colors[3] = vec3[](
vec3(1.0, 0.0, 0.0),
vec3(0.0, 1.0, 0.0),
vec3(0.0, 0.0, 1.0)
);

void main() {
    gl_Position = vec4(positions[gl_VertexIndex], 0.0, 1.0);
    fragColor = colors[gl_VertexIndex];
}

res/shaders/vertex.frag

@@ -1,10 +1,9 @@
 #version 450
-#extension GL_ARB_separate_shader_objects: enable
 
-layout (location = 0) in vec3 fragColor;
+layout (location = 0) in vec3 color;
 
-layout (location = 0) out vec4 outColor;
+layout (location = 0) out vec4 f_color;
 
 void main() {
-    outColor = vec4(fragColor, 1.0);
+    f_color = vec4(color, 1.0);
 }

res/shaders/vertex.vert

@@ -1 +1 @@
-#version 450
#extension GL_ARB_separate_shader_objects: enable

// NOTE: names must match the `Vertex` struct in Rust
layout (location = 0) in vec2 pos;
layout (location = 1) in vec3 color;

layout (location = 0) out vec3 fragColor;

out gl_PerVertex {
    vec4 gl_Position;
};

void main() {
    gl_Position = vec4(pos, 0.0, 1.0);
    fragColor = color;
}
+#version 450

layout (location = 0) in vec2 position;
layout (location = 1) in vec3 color;

layout (location = 0) out vec3 fragColor;

void main() {
    gl_Position = vec4(position, 0.0, 1.0);
    fragColor = color;
}