Vulcan Nightmare

Experimentally bringing up vulcan support

assets/shaders/celestial.vert.glsl

@@ -0,0 +1,34 @@
+#version 450
+
+layout(set = 0, binding = 0) uniform PerFrame {
+    mat4 view;
+    mat4 projection;
+    mat4 lightSpaceMatrix;
+    vec4 lightDir;
+    vec4 lightColor;
+    vec4 ambientColor;
+    vec4 viewPos;
+    vec4 fogColor;
+    vec4 fogParams;
+    vec4 shadowParams;
+};
+
+layout(push_constant) uniform Push {
+    mat4 model;
+    vec4 celestialColor; // xyz = color, w = unused
+    float intensity;
+    float moonPhase;
+    float animTime;
+} push;
+
+layout(location = 0) in vec3 aPos;
+layout(location = 1) in vec2 aTexCoord;
+
+layout(location = 0) out vec2 TexCoord;
+
+void main() {
+    TexCoord = aTexCoord;
+    // Sky object: remove camera translation so celestial bodies are at infinite distance
+    mat4 rotView = mat4(mat3(view));
+    gl_Position = projection * rotView * push.model * vec4(aPos, 1.0);
+}