Add matrices

src/shaders/shader.slang

@@ -3,16 +3,20 @@ struct VSInput {
 	float3 Color;
 };
 
+struct ShaderData {
+	float4x4 mvp;
+};
+
 struct VertexOutput {
 	float3 Color;
 	float4 sv_position : SV_Position;
 };
 
 [shader("vertex")]
-VertexOutput vertMain(VSInput input, uint vid : SV_VertexID) {
+VertexOutput vertMain(VSInput input, uniform ShaderData *data, uint vid : SV_VertexID) {
 	VertexOutput output;
 	output.Color       = input.Color;
-	output.sv_position = float4(input.Pos, 1.0);
+	output.sv_position = mul(data->mvp, float4(input.Pos, 1.0));
 	return output;
 }