Point light working

HydraEngine/source/ShaderFiles/shadow_point_shader.frag

@@ -0,0 +1,84 @@
+//*PIXEL*
+#version 460
+
+#extension GL_ARB_bindless_texture : require
+
+const uint DIRECTIONAL_LIGHT = 1;
+const uint POINT_LIGHT = 2;
+const uint SPOT_LIGHT = 3;
+uint INVALID_HYDRA_ID = 4294967295;
+
+struct MaterialStore
+{
+	vec4 diffuse_colour;	
+	vec4 matalic_rough;	 
+    uint diffuse_texture_id;
+    uint metallic_rough_texture_id;
+    uint normal_texture_id;
+	uint padding[1];
+};
+
+struct PointShadowMapSet
+{
+    uint entity_id;
+    uint shadow_id;
+    uint shadow_texture_id;   
+    uint frame_buffer_id;
+    float near_plane;
+    float far_plane;
+    uint padding[2];
+    mat4 light_space_proj;
+    mat4 light_space_view[6];
+
+};
+
+layout(std430, binding = 2) readonly buffer material_buffer
+{
+	MaterialStore materials[1000];
+};
+
+layout(std430, binding = 3) readonly buffer texture_buffer 
+{
+    uvec2 textures[1000];
+};
+
+layout (std430, binding = 7) readonly buffer point_shadow_map_sets
+{
+	PointShadowMapSet point_shadows[];
+};
+
+layout (location=0) in GEOM_OUT
+{
+	vec2 vsUV;
+    flat uint vsMaterialID;
+	vec4 frag_pos;
+	flat uint shad_idx;
+	flat vec3 light_pos;
+}geom_out;
+
+layout (location=0) out vec4 output_colour;
+
+void main() 
+{
+    MaterialStore mat = materials[geom_out.vsMaterialID];
+	vec4 diffuse_val = mat.diffuse_colour;
+    if(mat.diffuse_texture_id != INVALID_HYDRA_ID)
+	{
+		uvec2 diffuse_handle = textures[mat.diffuse_texture_id];
+		diffuse_val = diffuse_val * texture(sampler2D(diffuse_handle), geom_out.vsUV.xy);	
+	}
+
+    if(diffuse_val[3] < 1.0)
+	{
+        discard;		
+	}
+
+	
+	float light_distance = length(geom_out.frag_pos.xyz - geom_out.light_pos);
+    
+    // map to [0;1] range by dividing by far_plane
+    light_distance = light_distance / point_shadows[geom_out.shad_idx].far_plane;
+    
+    // write this as modified depth
+    gl_FragDepth = light_distance;
+}