setting up 3d

assets/shaders/color3d.glsl

@@ -0,0 +1,93 @@
+#type vertex
+#version 450 core
+
+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;
+layout(location = 4) in int a_EntityID;
+
+layout(std140, binding = 0) uniform Camera
+{
+	mat4 u_ViewProjection;
+    vec3 u_ViewPosition;
+};
+
+layout(std140, binding = 1) uniform Transform
+{
+    mat4 u_Transform;
+};
+
+struct VertexOutput
+{
+	vec4 Color;
+	vec2 TexCoord;
+    vec3 Normal;
+    vec3 ViewPos;
+};
+
+layout (location = 0) out VertexOutput Output;
+layout (location = 4) out flat int v_EntityID;
+layout (location = 5) out vec4 v_Pos;
+
+void main()
+{
+	Output.Color = a_Color;
+	Output.TexCoord = a_TexCoord;
+    Output.Normal = mat3(transpose(inverse(u_Transform))) * a_Normal;
+    Output.ViewPos = u_ViewPosition;
+
+	v_EntityID = a_EntityID;
+
+    v_Pos = u_Transform * vec4(a_Position, 1.0);
+    gl_Position = u_ViewProjection * v_Pos;
+}
+
+#type fragment
+#version 450 core
+
+layout (location = 0) out vec4 color;
+layout (location = 1) out int color2;
+
+struct VertexOutput
+{
+	vec4 Color;
+	vec2 TexCoord;
+    vec3 Normal;
+    vec3 ViewPos;
+};
+
+layout (location = 0) in VertexOutput Input;
+layout (location = 4) in flat int v_EntityID;
+layout (location = 5) in vec4 v_Pos;
+
+void main()
+{
+    vec3 lightPos = vec3(0.0f, 1.0f, 0.0f);
+    vec3 lightColor = vec3(1.0f, 1.0f, 1.0f);
+
+    // Ambiant lighting
+    float ambientStrength = 0.8;
+    vec3 ambient = ambientStrength * lightColor;
+
+    // Diffuse lighting
+    vec3 norm = normalize(Input.Normal);
+    vec3 lightDir = normalize(lightPos - v_Pos.xyz);
+
+    float diff = max(dot(norm, lightDir), 0.0);
+    vec3 diffuse = diff * lightColor;
+
+    // Specular highlight
+    float specularStrength = 0.5;
+    vec3 viewDir = normalize(Input.ViewPos - v_Pos.xyz); // .xyz here too
+    vec3 reflectDir = reflect(-lightDir, norm);
+
+    float spec = pow(max(dot(viewDir, reflectDir), 0.0), 32);
+    vec3 specular = specularStrength * spec * lightColor;
+
+    vec3 result = (ambient + diffuse + specular) * Input.Color.rgb; // objectColor → Input.Color.rgb
+
+    // Output
+    color = vec4(result, 1.0); // vec3 → vec4
+	color2 = v_EntityID;
+}