Shadows

Editor/CMakeLists.txt

@@ -66,13 +66,24 @@ add_custom_command(TARGET Editor POST_BUILD COMMAND ${CMAKE_COMMAND} -E copy ${C
 file(GLOB_RECURSE ASSETS
 	${CMAKE_CURRENT_SOURCE_DIR}/assets/*
 )
-add_custom_command(
-	OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/_Assets
-	COMMAND ${CMAKE_COMMAND} -E copy_directory ${CMAKE_CURRENT_SOURCE_DIR}/assets/ $<TARGET_FILE_DIR:Editor>/assets
-	COMMAND ${CMAKE_COMMAND} -E touch ${CMAKE_CURRENT_BINARY_DIR}/_Assets
-	DEPENDS ${ASSETS}
-	COMMENT "Copying assets to executable directory"
-)
+
+if (CMAKE_GENERATOR MATCHES "Visual Studio")
+	add_custom_command(
+		OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/_Assets
+		COMMAND ${CMAKE_COMMAND} -E copy_directory ${CMAKE_CURRENT_SOURCE_DIR}/assets/ $<TARGET_FILE_DIR:Editor>/../assets
+		COMMAND ${CMAKE_COMMAND} -E touch ${CMAKE_CURRENT_BINARY_DIR}/_Assets
+		DEPENDS ${ASSETS}
+		COMMENT "Copying assets to executable directory"
+	)
+else ()
+	add_custom_command(
+		OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/_Assets
+		COMMAND ${CMAKE_COMMAND} -E copy_directory ${CMAKE_CURRENT_SOURCE_DIR}/assets/ $<TARGET_FILE_DIR:Editor>/assets
+		COMMAND ${CMAKE_COMMAND} -E touch ${CMAKE_CURRENT_BINARY_DIR}/_Assets
+		DEPENDS ${ASSETS}
+		COMMENT "Copying assets to executable directory"
+	)
+endif ()
 
 add_custom_target(CopyAssets DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/_Assets)
 add_dependencies(Editor CopyAssets)

Editor/assets/shaders/depth.glsl

@@ -0,0 +1,24 @@
+#type vertex
+#version 330 core
+// depth.glsl
+layout(location = 0) in vec3 a_Position;
+layout(location = 1) in vec4 a_Color;
+layout(location = 2) in vec3 a_Normal;
+layout(location = 3) in vec2 a_Texcoord;
+
+uniform mat4 u_lightSpaceMatrix;
+uniform mat4 u_transform;
+
+void main()
+{
+	gl_Position = u_lightSpaceMatrix * u_transform * vec4(a_Position, 1.0);
+}
+
+#type fragment
+#version 330 core
+//depth.glsl
+
+void main()
+{	
+	// gl_FragDepth = gl_FragCoord.z;
+}

Editor/assets/shaders/depthCube.glsl

@@ -0,0 +1,56 @@
+#type vertex
+#version 330 core
+// depth.glsl
+layout(location = 0) in vec3 a_Position;
+layout(location = 1) in vec4 a_Color;
+layout(location = 2) in vec3 a_Normal;
+layout(location = 3) in vec2 a_Texcoord;
+
+uniform mat4 u_transform;
+
+void main()
+{
+	gl_Position = u_transform * vec4(a_Position, 1.0);
+}
+
+#type fragment
+#version 330 core
+in vec4 FragPos;
+
+uniform vec3 lightPos;
+uniform float far_plane;
+
+void main()
+{
+    float lightDistance = length(FragPos.xyz - lightPos);
+
+    // map to [0;1] range by dividing by far_plane
+    lightDistance = lightDistance / far_plane;
+
+    // write this as modified depth
+    gl_FragDepth = lightDistance;
+}
+
+#type geometry
+#version 330 core
+layout (triangles) in;
+layout (triangle_strip, max_vertices=18) out;
+
+uniform mat4 shadowMatrices[6];
+
+out vec4 FragPos; // FragPos from GS (output per emitvertex)
+
+void main()
+{
+    for(int face = 0; face < 6; ++face)
+    {
+        gl_Layer = face; // built-in variable that specifies to which face we render.
+        for(int i = 0; i < 3; ++i) // for each triangle's vertices
+        {
+            FragPos = gl_in[i].gl_Position;
+            gl_Position = shadowMatrices[face] * FragPos;
+            EmitVertex();
+        }    
+        EndPrimitive();
+    }
+}