4sides quad

src/primitives/quad.rs

@@ -0,0 +1,55 @@
+use vulkanalia::prelude::v1_0::*;
+use cgmath::vec3;
+use crate::vertex;
+use crate::scene::Scene;
+use crate::primitives::drawable::Drawable;
+
+#[derive(Clone, Debug, PartialEq)]
+pub struct Quad{
+    pub pos1: vertex::Vec3,
+    pub pos2: vertex::Vec3,
+    pub pos3: vertex::Vec3,
+    pub pos4: vertex::Vec3,
+    pub raster_pos: cgmath::Vector2<u32>,
+    pub volume_index: u32,
+}
+
+impl Drawable for Quad {
+    fn draw(& self, topology: &vk::PrimitiveTopology, start_index: usize, scene: &mut Scene) {
+        if *topology == vk::PrimitiveTopology::TRIANGLE_LIST {
+            // 0 top left far
+            scene.rt_vertices.push(vertex::RTVertex::new(
+                vec3(self.pos1.x as f32, self.pos1.y as f32, self.pos1.z as f32),
+                self.raster_pos,
+                self.volume_index
+            ));
+            // 1 top right far
+            scene.rt_vertices.push(vertex::RTVertex::new(
+                vec3(self.pos2.x as f32, self.pos2.y as f32, self.pos2.z as f32),
+                self.raster_pos,
+                self.volume_index
+            ));
+            // 2 top left near
+            scene.rt_vertices.push(vertex::RTVertex::new(
+                vec3(self.pos3.x as f32, self.pos3.y as f32, self.pos3.z as f32),
+                self.raster_pos,
+                self.volume_index
+            ));
+            // 3 top right near
+            scene.rt_vertices.push(vertex::RTVertex::new(
+                vec3(self.pos4.x as f32, self.pos4.y as f32, self.pos4.z as f32),
+                self.raster_pos,
+                self.volume_index
+            ));
+            
+            // top
+            scene.indices_rt.push(start_index as u32 + 2);
+            scene.indices_rt.push(start_index as u32 + 1);
+            scene.indices_rt.push(start_index as u32 + 0);
+
+            scene.indices_rt.push(start_index as u32 + 0);
+            scene.indices_rt.push(start_index as u32 + 3);
+            scene.indices_rt.push(start_index as u32 + 2);       
+        }
+    }
+}