From cd12d88994e4f6be4898732682035f2a1b7d8e9a Mon Sep 17 00:00:00 2001
From: Samuliak <samuliak77@gmail.com>
Date: Tue, 2 Jul 2024 16:58:29 +0200
Subject: [PATCH] flip y positions
---
src/host_shaders/metal_shaders.metal | 3 +++
1 file changed, 3 insertions(+)
diff --git a/src/host_shaders/metal_shaders.metal b/src/host_shaders/metal_shaders.metal
index 580e9d9c..fcb28ddd 100644
--- a/src/host_shaders/metal_shaders.metal
+++ b/src/host_shaders/metal_shaders.metal
@@ -10,6 +10,7 @@ vertex DisplayVertexOut vertexDisplay(uint vid [[vertex_id]]) {
DisplayVertexOut out;
out.uv = float2((vid << 1) & 2, vid & 2);
out.position = float4(out.uv * 2.0f + -1.0f, 0.0f, 1.0f);
+ out.position.y = -out.position.y;
return out;
}
@@ -86,6 +87,8 @@ vertex DrawVertexOut vertexDraw(DrawVertexIn in [[stage_in]], constant PicaRegs&
out.position = in.position;
// HACK: rotate the position
out.position.xy = -out.position.yx;
+ // Flip the y position
+ out.position.y = -out.position.y;
// in.position.z is in range of [-1 ... 1], convert it to [0 ... 1]
out.position.z = (in.position.z + 1.0) * 0.5;