Vertex and index buffers

shaders/18_shader_vertexbuffer.slang

@@ -0,0 +1,22 @@
+struct VSInput {
+  float2 inPosition;
+  float3 inColor;
+};
+
+struct VSOutput {
+  float4 pos : SV_Position;
+  float3 color;
+};
+
+[shader("vertex")]
+VSOutput vertMain(VSInput input) {
+  VSOutput output;
+  output.color = input.inColor;
+  output.pos   = float4(input.inPosition, 0.0, 1.0);
+  return output;
+}
+
+[shader("fragment")]
+float4 fragMain(VSOutput vertIn) : SV_Target {
+  return float4(vertIn.color, 1.0);
+}