port a few more math functions

1 files changed, 29 insertions, 0 deletions

diff --git a/assets/shaders/cube.metal b/assets/shaders/cube.metal
index e69de29..dc7ace1 100644
--- a/assets/shaders/cube.metal
+++ b/assets/shaders/cube.metal
@@ -0,0 +1,29 @@
+#include <metal_stdlib>
+using namespace metal;
+
+struct VertexData {
+    float4 position;
+    float4 normal;
+    float2 texCoords;
+};
+
+struct VertexOut {
+    float4 position [[position]];
+    float2 textureCoordinate;
+};
+
+struct TransformationData {
+    float4x4 modelMatrix;
+    float4x4 viewMatrix;
+    float4x4 perspectiveMatrix;
+};
+
+vertex VertexOut cubeVertexShader(uint vertexID [[vertex_id]],
+             constant VertexData* vertexData,
+             constant TransformationData* transformationData)
+{
+    VertexOut out;
+    out.position = transformationData->perspectiveMatrix * transformationData->viewMatrix * transformationData->modelMatrix * vertexData[vertexID].position;
+    out.textureCoordinate = vertexData[vertexID].texCoords;
+    return out;
+}
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