pre double pipeline commit. The following will attempt to add another rendering stage for textured cuboids.

shaders/compile.bat

@@ -1,3 +1,7 @@
-C:/VulkanSDK/1.3.280.0/Bin/glslc.exe shaders/shader.vert -o shaders/vert.spv
-C:/VulkanSDK/1.3.280.0/Bin/glslc.exe shaders/shader.frag -o shaders/frag.spv
-C:/VulkanSDK/1.3.280.0/Bin/glslc.exe shaders/shader.geom -o shaders/geo.spv
+C:/VulkanSDK/1.3.280.0/Bin/glslc.exe shaders/cube.vert -o shaders/vert_cube.spv
+C:/VulkanSDK/1.3.280.0/Bin/glslc.exe shaders/cube.frag -o shaders/frag_cube.spv
+C:/VulkanSDK/1.3.280.0/Bin/glslc.exe shaders/cube.geom -o shaders/geo_cube.spv
+
+C:/VulkanSDK/1.3.280.0/Bin/glslc.exe shaders/cuboid.vert -o shaders/vert_cuboid.spv
+C:/VulkanSDK/1.3.280.0/Bin/glslc.exe shaders/cuboid.frag -o shaders/frag_cuboid.spv
+C:/VulkanSDK/1.3.280.0/Bin/glslc.exe shaders/cuboid.geom -o shaders/geo_cuboid.spv

shaders/cuboid.frag

@@ -0,0 +1,11 @@
+#version 450
+
+layout(location = 0) in vec3 fragColor;
+layout(location = 1) in vec2 fragTexCoord;
+
+layout(location = 0) out vec4 outColor;
+layout(binding = 1) uniform sampler2D texSampler;
+
+void main() {
+    outColor = vec4(fragColor, 1); //texture(texSampler, fragTexCoord);
+}

shaders/cuboid.geom

@@ -0,0 +1,181 @@
+#version 450
+
+layout(points) in;
+layout(triangle_strip, max_vertices=12) out;
+
+layout(binding = 0) uniform UniformBufferObject {
+    mat4 model;
+    mat4 geom_rot;
+    mat4 view;
+    mat4 proj;
+    bool[16] use_geom_shader;
+} ubo;
+
+layout(location = 0) in vec3 geoColor[];
+layout(location = 1) in vec2 geoTexCoord[];
+layout(location = 2) in vec3 geoSize[];
+
+layout(location = 0) out vec3 fragColor;
+layout(location = 1) out vec2 fragTexCoord;
+
+bool ignore_scalars = false;
+
+void main () {
+    mat4 geom_rotation = ubo.geom_rot;
+    //back
+    vec4 normal_back = geom_rotation * vec4(0, 0, -1, 0);
+    float scalar_back = dot(normal_back, vec4(1, 0, 0, 0));
+
+    if (scalar_back <= 0 || ignore_scalars){
+        gl_Position = ubo.proj * ubo.view * (gl_in[0].gl_Position + geom_rotation * vec4(geoSize[0].x, -geoSize[0].y, -geoSize[0].z, 0));
+        fragColor = geoColor[0];
+        fragTexCoord = geoTexCoord[0];
+        EmitVertex();
+    
+        gl_Position = ubo.proj * ubo.view * (gl_in[0].gl_Position + geom_rotation * vec4(-geoSize[0].x, -geoSize[0].y, -geoSize[0].z, 0));
+        fragColor = geoColor[0];
+        fragTexCoord = geoTexCoord[0];
+        EmitVertex();
+
+        gl_Position = ubo.proj * ubo.view * (gl_in[0].gl_Position + geom_rotation * vec4(geoSize[0].x, geoSize[0].y, -geoSize[0].z, 0));
+        fragColor = geoColor[0];
+        fragTexCoord = geoTexCoord[0];
+        EmitVertex();
+
+        gl_Position = ubo.proj * ubo.view * (gl_in[0].gl_Position + geom_rotation * vec4(-geoSize[0].x, geoSize[0].y, -geoSize[0].z, 0));
+        fragColor = geoColor[0];
+        fragTexCoord = geoTexCoord[0];
+        EmitVertex();
+        EndPrimitive();
+    }
+
+    //front
+    vec4 normal_front = geom_rotation * vec4(0, 0, 1, 0);
+    float scalar_front = dot(normal_front, vec4(1, 0, 0, 0));
+    if (scalar_front <= 0 || ignore_scalars) {
+        gl_Position = ubo.proj * ubo.view * (gl_in[0].gl_Position + geom_rotation * vec4(-geoSize[0].x, geoSize[0].y, geoSize[0].z, 0));
+        fragColor = geoColor[0];
+        fragTexCoord = geoTexCoord[0];
+        EmitVertex();
+
+        gl_Position = ubo.proj * ubo.view * (gl_in[0].gl_Position + geom_rotation * vec4(-geoSize[0].x, -geoSize[0].y, geoSize[0].z, 0));
+        fragColor = geoColor[0];
+        fragTexCoord = geoTexCoord[0];
+        EmitVertex();
+
+        gl_Position = ubo.proj * ubo.view * (gl_in[0].gl_Position + geom_rotation * vec4(geoSize[0].x, geoSize[0].y, geoSize[0].z, 0));
+        fragColor = geoColor[0];
+        fragTexCoord = geoTexCoord[0];
+        EmitVertex();
+
+        gl_Position = ubo.proj * ubo.view * (gl_in[0].gl_Position + geom_rotation * vec4(geoSize[0].x, -geoSize[0].y, geoSize[0].z, 0));
+        fragColor = geoColor[0];
+        fragTexCoord = geoTexCoord[0];
+        EmitVertex();
+        EndPrimitive();
+    }
+    //up
+    vec4 normal_up = geom_rotation * vec4(0, 1, 0, 0);
+    float scalar_up = dot(normal_up, vec4(1, 0, 0, 0));
+
+    if (scalar_up <= 0 || ignore_scalars) {
+        gl_Position = ubo.proj * ubo.view * (gl_in[0].gl_Position + geom_rotation * vec4(geoSize[0].x, geoSize[0].y, -geoSize[0].z, 0));
+        fragColor = geoColor[0];
+        fragTexCoord = geoTexCoord[0];
+        EmitVertex();
+
+        gl_Position = ubo.proj * ubo.view * (gl_in[0].gl_Position + geom_rotation * vec4(-geoSize[0].x, geoSize[0].y, -geoSize[0].z, 0));
+        fragColor = geoColor[0];
+        fragTexCoord = geoTexCoord[0];
+        EmitVertex();
+
+        gl_Position = ubo.proj * ubo.view * (gl_in[0].gl_Position + geom_rotation * vec4(geoSize[0].x, geoSize[0].y, geoSize[0].z, 0));
+        fragColor = geoColor[0];
+        fragTexCoord = geoTexCoord[0];
+        EmitVertex();
+
+        gl_Position = ubo.proj * ubo.view * (gl_in[0].gl_Position + geom_rotation * vec4(-geoSize[0].x, geoSize[0].y, geoSize[0].z, 0));
+        fragColor = geoColor[0];
+        fragTexCoord = geoTexCoord[0];
+        EmitVertex();
+        EndPrimitive();
+    }
+    //down
+    vec4 normal_down = geom_rotation * vec4(0, -1, 0, 0);
+    float scalar_down = dot(normal_down, vec4(1, 0, 0, 0));
+
+    if (scalar_down <= 0 || ignore_scalars) {
+        gl_Position = ubo.proj * ubo.view * (gl_in[0].gl_Position + geom_rotation * vec4(-geoSize[0].x, -geoSize[0].y, geoSize[0].z, 0));
+        fragColor = geoColor[0];
+        fragTexCoord = geoTexCoord[0];
+        EmitVertex();
+
+        gl_Position = ubo.proj * ubo.view * (gl_in[0].gl_Position + geom_rotation * vec4(-geoSize[0].x, -geoSize[0].y, -geoSize[0].z, 0));
+        fragColor = geoColor[0];
+        fragTexCoord = geoTexCoord[0];
+        EmitVertex();
+
+        gl_Position = ubo.proj * ubo.view * (gl_in[0].gl_Position + geom_rotation * vec4(geoSize[0].x, -geoSize[0].y, geoSize[0].z, 0));
+        fragColor = geoColor[0];
+        fragTexCoord = geoTexCoord[0];
+        EmitVertex();
+
+        gl_Position = ubo.proj * ubo.view * (gl_in[0].gl_Position + geom_rotation * vec4(geoSize[0].x, -geoSize[0].y, -geoSize[0].z, 0));
+        fragColor = geoColor[0];
+        fragTexCoord = geoTexCoord[0];
+        EmitVertex();
+        EndPrimitive();
+    }
+    //left
+    vec4 normal_left = geom_rotation * vec4(-1, 0, 0, 0);
+    float scalar_left = dot(normal_left, vec4(1, 0, 0, 0));
+
+    if (scalar_left <= 0 || ignore_scalars) {
+        gl_Position = ubo.proj * ubo.view * (gl_in[0].gl_Position + geom_rotation * vec4(-geoSize[0].x, geoSize[0].y, -geoSize[0].z, 0));
+        fragColor = geoColor[0];
+        fragTexCoord = geoTexCoord[0];
+        EmitVertex();
+
+        gl_Position = ubo.proj * ubo.view * (gl_in[0].gl_Position + geom_rotation * vec4(-geoSize[0].x, -geoSize[0].y, -geoSize[0].z, 0));
+        fragColor = geoColor[0];
+        fragTexCoord = geoTexCoord[0];
+        EmitVertex();
+
+        gl_Position = ubo.proj * ubo.view * (gl_in[0].gl_Position + geom_rotation * vec4(-geoSize[0].x, geoSize[0].y, geoSize[0].z, 0));
+        fragColor = geoColor[0];
+        fragTexCoord = geoTexCoord[0];
+        EmitVertex();
+
+        gl_Position = ubo.proj * ubo.view * (gl_in[0].gl_Position + geom_rotation * vec4(-geoSize[0].x, -geoSize[0].y, geoSize[0].z, 0));
+        fragColor = geoColor[0];
+        fragTexCoord = geoTexCoord[0];
+        EmitVertex();
+        EndPrimitive();
+    }
+    //right
+    vec4 normal_right = geom_rotation * vec4(1, 0, 0, 0);
+    float scalar_right = dot(normal_right, vec4(1, 0, 0, 0));
+
+    if (scalar_right <= 0 || ignore_scalars) {
+        gl_Position = ubo.proj * ubo.view * (gl_in[0].gl_Position + geom_rotation * vec4(geoSize[0].x, -geoSize[0].y, geoSize[0].z, 0));
+        fragColor = geoColor[0];
+        fragTexCoord = geoTexCoord[0];
+        EmitVertex();
+
+        gl_Position = ubo.proj * ubo.view * (gl_in[0].gl_Position + geom_rotation * vec4(geoSize[0].x, -geoSize[0].y, -geoSize[0].z, 0));
+        fragColor = geoColor[0];
+        fragTexCoord = geoTexCoord[0];
+        EmitVertex();
+
+        gl_Position = ubo.proj * ubo.view * (gl_in[0].gl_Position + geom_rotation * vec4(geoSize[0].x, geoSize[0].y, geoSize[0].z, 0));
+        fragColor = geoColor[0];
+        fragTexCoord = geoTexCoord[0];
+        EmitVertex();
+
+        gl_Position = ubo.proj * ubo.view * (gl_in[0].gl_Position + geom_rotation * vec4(geoSize[0].x, geoSize[0].y, -geoSize[0].z, 0));
+        fragColor = geoColor[0];
+        fragTexCoord = geoTexCoord[0];
+        EmitVertex();
+        EndPrimitive();
+    }
+}

shaders/cuboid.vert

@@ -0,0 +1,30 @@
+#version 450
+
+layout(binding = 0) uniform UniformBufferObject {
+    mat4 model;
+    mat4 geom_rot;
+    mat4 view;
+    mat4 proj;
+    bool[16] use_geom_shader;
+} ubo;
+
+
+layout(location = 0) in vec3 inPosition;
+layout(location = 1) in vec3 inColor;
+layout(location = 2) in vec2 inTexCoord;
+layout(location = 3) in vec3 inSize;
+
+layout(location = 0) out vec3 geoColor;
+layout(location = 1) out vec2 geoTexCoord;
+layout(location = 2) out vec3 geoSize;
+
+void main() {
+    if (ubo.use_geom_shader[0]) {
+        gl_Position = ubo.geom_rot * ubo.model *  vec4(inPosition, 1.0);
+    } else {
+        gl_Position = ubo.proj * ubo.view * ubo.geom_rot * ubo.model *  vec4(inPosition, 1.0);
+    }
+    geoColor = inColor;
+    geoTexCoord = inTexCoord;
+    geoSize = inSize;
+}