From 9134d2dc4022a1359ff50611e460aa7abc3c6a85 Mon Sep 17 00:00:00 2001
From: David Hackbarth <david@lyrebird-studio.com>
Date: Wed, 19 Nov 2025 09:20:20 +0100
Subject: [PATCH] activate specular highlights

---
 GDP/D3D9/Mesh.cpp | 6 +++---
 GDP/D3D9/main.cpp | 5 +++--
 2 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/GDP/D3D9/Mesh.cpp b/GDP/D3D9/Mesh.cpp
index 4e0577a..1e5bc6e 100644
--- a/GDP/D3D9/Mesh.cpp
+++ b/GDP/D3D9/Mesh.cpp
@@ -31,12 +31,12 @@ void Mesh::update(FLOAT dt)
     static FLOAT x = 0.0f;
     static FLOAT y = 0.0f;
     static FLOAT z = 0.0f;
-    static FLOAT pitch = 0.2f; // x axis
+    static FLOAT pitch = 0.0f; // x axis
     static FLOAT yaw = 0.0f; // y axis
-    static FLOAT roll = 0.4f; // z axis
+    static FLOAT roll = 0.0f; // z axis
     static FLOAT scale = 1.0f;
 
-    yaw += 1.0f * dt;
+    //yaw += 1.0f * dt;
     //scale += 0.001f * dt;
 
     FLOAT move = 1.0f * dt;
diff --git a/GDP/D3D9/main.cpp b/GDP/D3D9/main.cpp
index 9fb76cf..cde8c78 100644
--- a/GDP/D3D9/main.cpp
+++ b/GDP/D3D9/main.cpp
@@ -39,6 +39,7 @@ int WINAPI WinMain(
 	// set render states
 	d3d.getDevice()->SetRenderState(D3DRS_CULLMODE, D3DCULL_CCW);
 	d3d.getDevice()->SetRenderState(D3DRS_LIGHTING, TRUE);
+	d3d.getDevice()->SetRenderState(D3DRS_SPECULARENABLE, TRUE);
 	d3d.getDevice()->SetRenderState(D3DRS_DIFFUSEMATERIALSOURCE, D3DMCS_MATERIAL);
 	d3d.getDevice()->SetRenderState(D3DRS_SPECULARMATERIALSOURCE, D3DMCS_MATERIAL);
 	d3d.getDevice()->SetRenderState(D3DRS_AMBIENTMATERIALSOURCE, D3DMCS_MATERIAL);
@@ -68,9 +69,9 @@ int WINAPI WinMain(
 	D3DLIGHT9 data = {};
 	data.Type = D3DLIGHT_DIRECTIONAL;
 	data.Direction = { 0.0f, 0.0f, 1.0f };
-	data.Diffuse = { 0.0f, 0.0f, 0.0f, 1.0f };
+	data.Diffuse = { 0.5f, 0.5f, 0.5f, 1.0f };
 	data.Specular = { 1.0f, 1.0f, 1.0f, 1.0f };
-	data.Ambient = { 0.1f, 0.1f, 0.5f, 1.0f };
+	data.Ambient = { 0.1f, 0.1f, 0.1f, 1.0f };
 	error = light.init(data);
 	CheckError(error);