embed shaders in binary

vis/shaders/CMakeLists.txt

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+add_embed_library(shaders
+    main-4d.vert.glsl
+    main.vert.glsl
+    main.frag.glsl)

vis/shaders/main-4d.vert.glsl

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+#version 440
+
+layout(location=1) uniform float time;
+layout(location=2) uniform mat4 proj;
+layout(location=3) uniform mat4 rot;
+
+layout(location=0) in vec4 pos;
+
+void main() {
+    vec4 pos = rot * pos;
+    gl_Position = proj * vec4(pos.xyz / (1 - pos.w), 1.0);
+}

vis/shaders/main.frag.glsl

@@ -0,0 +1,12 @@
+#version 440
+
+layout(location=0) uniform vec4 ucol;
+
+layout(location=0) out vec4 col;
+
+void main() {
+    float d = 1.0 - gl_FragCoord.z;
+    d = (d - 0.5) / 0.7 + 0.5;
+    col = ucol;
+    col.xyz *= d;
+}

vis/shaders/main.vert.glsl

@@ -0,0 +1,13 @@
+#version 440
+
+layout(location=1) uniform float time;
+layout(location=2) uniform mat4 proj;
+layout(location=3) uniform mat4 view;
+
+layout(location=0) in vec4 pos;
+
+void main() {
+    vec3 pos3 = (view * pos).xyz;
+    
+    gl_Position = proj * vec4(pos3, 1.0);
+}