init

shaders/shader_debugprintf/hlsl/scene.frag.hlsl

@@ -0,0 +1,64 @@
+/* Copyright (c) 2024, Sascha Willems
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 the "License";
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+Texture2D textureEnvMap : register(t1);
+SamplerState samplerEnvMap : register(s1);
+
+struct VSOutput
+{
+    float4 Pos : SV_POSITION;
+    [[vk::location(0)]] float2 UV : TEXCOORD0;
+    [[vk::location(1)]] float3 Normal : NORMAL0;
+    [[vk::location(2)]] float3 ViewVec : TEXCOORD1;
+    [[vk::location(3)]] float3 LightVec : TEXCOORD2;
+};
+
+struct PushConstants
+{
+    float4 offset;
+    float4 color;
+    int object_type;
+};
+[[vk::push_constant]] PushConstants push_constants;
+
+float4 main(VSOutput input) : SV_TARGET
+{
+	float4 color;
+
+	switch (push_constants.object_type) {
+		case 0: // Skysphere			
+			{
+                color = textureEnvMap.Sample(samplerEnvMap, float2(input.UV.x, 1.0 - input.UV.y));
+            }
+			break;
+		
+		case 1: // Phong shaded objects
+			{
+				float3 ambient = push_constants.color.rgb * (0.5).xxx;
+                float3 N = normalize(input.Normal);
+                float3 L = normalize(input.LightVec);
+                float3 V = normalize(input.ViewVec);
+                float3 R = reflect(-L, N);
+                float3 diffuse = max(dot(N, L), 0.0) * push_constants.color.rgb;
+                float3 specular = (pow(max(dot(R, V), 0.0), 8.0)).xxx;
+				color = float4(ambient + diffuse + specular, 1.0);	
+			}
+			break;
+	}
+
+	return float4(color.rgb, 1.0);
+}