diff --git a/src/editor/level_editor.jai b/src/editor/level_editor.jai
index 374a291..faa8e4d 100644
--- a/src/editor/level_editor.jai
+++ b/src/editor/level_editor.jai
@@ -155,6 +155,7 @@ draw_level_editor :: () {
 	bindings : sg_bindings;
 	bindings.vertex_buffers[0] = trilegfx.vertex_buffer;
 	bindings.vertex_buffers[1] = trilegfx.normal_buffer;
+	bindings.vertex_buffers[2] = trilegfx.centre_buffer;
     bindings.samplers[0]       = gPipelines.trile.bind.samplers[0];
 	bindings.images[0]         = trilegfx.trixel_colors;
 	
diff --git a/src/meshgen.jai b/src/meshgen.jai
index d167e9a..0aa121c 100644
--- a/src/meshgen.jai
+++ b/src/meshgen.jai
@@ -411,10 +411,10 @@ generate_optimized_quad_mesh :: (trilept: *Trile, vecs: *[..]float, normals: *[.
 }
 
 Pool        :: #import "Pool";
+meshgenpool :  Pool.Pool;
 
 generate_trile_gfx_matias :: (trileptr : *Trile) -> Trile_GFX {
-    meshgenpool :  Pool.Pool;
-    Pool.set_allocators(*meshgenpool);
+    Pool.set_allocators(*meshgenpool); // @ToDo: Only do this if we haven't yet done it.
     new_context := context;
     new_context.allocator = .{Pool.pool_allocator_proc, *meshgenpool};
     push_context new_context {
@@ -433,10 +433,38 @@ generate_trile_gfx_matias :: (trileptr : *Trile) -> Trile_GFX {
         trile_normal_buffer_info := sg_buffer_desc.{ data = .{ ptr = triangleNorms.data, size = xx (triangleNorms.count * 4) } };
         trile_normal_buffer      := sg_make_buffer(*trile_normal_buffer_info);
         
-        Pool.reset(*meshgenpool);
-
         print("Successfully generated mesh for trile with % triangles.\n", triangleVecs.count / 3 / 3);
 
+        centres : [..]float;
+
+        // Generate triangle centers.
+        for 0..(triangleVecs.count/3/3)-1 {
+            x1 := triangleVecs[it * 9 + 0];
+            x2 := triangleVecs[it * 9 + 3];
+            x3 := triangleVecs[it * 9 + 6];
+            xr := (x1+x2+x3) / 3.0;
+            
+            y1 := triangleVecs[it * 9 + 1];
+            y2 := triangleVecs[it * 9 + 4];
+            y3 := triangleVecs[it * 9 + 7];
+            yr := (y1+y2+y3) / 3.0;
+
+            z1 := triangleVecs[it * 9 + 2];
+            z2 := triangleVecs[it * 9 + 5];
+            z3 := triangleVecs[it * 9 + 8];
+            zr := (z1+z2+z3) / 3.0;
+
+            for 0..2 {
+                array_add(*centres, xr);
+                array_add(*centres, yr);
+                array_add(*centres, zr);
+            }
+        }
+
+        trile_centre_buffer_info := sg_buffer_desc.{ data = .{ ptr = centres.data, size = xx (centres.count * 4) } };
+        trile_centre_buffer      := sg_make_buffer(*trile_centre_buffer_info);
+
+        Pool.reset(*meshgenpool);
         // Create the texture for the trile, from which it gets it's colors for trixels.
 
         materialdata : [16*16*16*4]u8;
@@ -481,6 +509,6 @@ generate_trile_gfx_matias :: (trileptr : *Trile) -> Trile_GFX {
         state := sg_query_image_state(img);
         print("IMG: %\n", state);
         
-        return .{ img, trile_vert_buffer, trile_normal_buffer, triangleVecs.count / 3 };
+        return .{ img, trile_vert_buffer, trile_normal_buffer, trile_centre_buffer, triangleVecs.count / 3 };
     }
 }
diff --git a/src/pipelines.jai b/src/pipelines.jai
index d86fe0b..22467ff 100644
--- a/src/pipelines.jai
+++ b/src/pipelines.jai
@@ -163,9 +163,11 @@ create_trile_pipeline :: () {
     pipeline.shader = sg_make_shader(*shader_desc);
     pipeline.layout.buffers[0].stride = 4*3;
     pipeline.layout.buffers[1].stride = 4*3;
+    pipeline.layout.buffers[1].stride = 4*3;
     
     pipeline.layout.attrs[ATTR_trile_position] = .{ format = .FLOAT3, buffer_index = 0 };
     pipeline.layout.attrs[ATTR_trile_normal]   = .{ format = .FLOAT3, buffer_index = 1 };
+    pipeline.layout.attrs[ATTR_trile_centre]   = .{ format = .FLOAT3, buffer_index = 2 };
     pipeline.depth = .{
             write_enabled = true,
             compare = .LESS_EQUAL,
diff --git a/src/shaders/jai/shader_trile.jai b/src/shaders/jai/shader_trile.jai
index 51c7787..146971e 100644
--- a/src/shaders/jai/shader_trile.jai
+++ b/src/shaders/jai/shader_trile.jai
@@ -15,6 +15,7 @@
         Attributes:
             ATTR_trile_position => 0
             ATTR_trile_normal => 1
+            ATTR_trile_centre => 2
     Bindings:
         Uniform block 'trile_vs_params':
             Jai struct: Trile_Vs_Params
@@ -30,6 +31,7 @@
 */
 ATTR_trile_position :: 0;
 ATTR_trile_normal :: 1;
+ATTR_trile_centre :: 2;
 UB_trile_vs_params :: 0;
 IMG_triletex :: 0;
 SMP_trilesmp :: 0;
@@ -41,13 +43,18 @@ Trile_Vs_Params :: struct {
 
     uniform vec4 trile_vs_params[4];
     layout(location = 0) in vec4 position;
-    layout(location = 0) out vec4 fnormal;
+    layout(location = 2) out vec4 fnormal;
     layout(location = 1) in vec4 normal;
+    layout(location = 0) out vec3 to_center;
+    layout(location = 2) in vec4 centre;
+    layout(location = 1) out vec3 vpos;
 
     void main()
     {
         gl_Position = mat4(trile_vs_params[0], trile_vs_params[1], trile_vs_params[2], trile_vs_params[3]) * vec4(position.xyz, 1.0);
         fnormal = normal;
+        to_center = centre.xyz - position.xyz;
+        vpos = position.xyz;
     }
 
 */
@@ -58,33 +65,51 @@ vs_trile_source_glsl430 := u8.[
     0x61,0x79,0x6f,0x75,0x74,0x28,0x6c,0x6f,0x63,0x61,0x74,0x69,0x6f,0x6e,0x20,0x3d,
     0x20,0x30,0x29,0x20,0x69,0x6e,0x20,0x76,0x65,0x63,0x34,0x20,0x70,0x6f,0x73,0x69,
     0x74,0x69,0x6f,0x6e,0x3b,0x0a,0x6c,0x61,0x79,0x6f,0x75,0x74,0x28,0x6c,0x6f,0x63,
-    0x61,0x74,0x69,0x6f,0x6e,0x20,0x3d,0x20,0x30,0x29,0x20,0x6f,0x75,0x74,0x20,0x76,
+    0x61,0x74,0x69,0x6f,0x6e,0x20,0x3d,0x20,0x32,0x29,0x20,0x6f,0x75,0x74,0x20,0x76,
     0x65,0x63,0x34,0x20,0x66,0x6e,0x6f,0x72,0x6d,0x61,0x6c,0x3b,0x0a,0x6c,0x61,0x79,
     0x6f,0x75,0x74,0x28,0x6c,0x6f,0x63,0x61,0x74,0x69,0x6f,0x6e,0x20,0x3d,0x20,0x31,
     0x29,0x20,0x69,0x6e,0x20,0x76,0x65,0x63,0x34,0x20,0x6e,0x6f,0x72,0x6d,0x61,0x6c,
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+    0x0a,0x0a,0x00,
 ];
 /*
     #version 430
 
     layout(binding = 16) uniform sampler2D triletex_trilesmp;
 
+    layout(location = 1) in vec3 vpos;
+    layout(location = 2) in vec4 fnormal;
+    layout(location = 0) in vec3 to_center;
     layout(location = 0) out vec4 frag_color;
-    layout(location = 0) in vec4 fnormal;
 
     void main()
     {
-        frag_color = texture(triletex_trilesmp, vec2(0.0));
+        vec3 _20 = vpos - (fnormal.xyz * 0.00999999977648258209228515625);
+        vec3 _23 = normalize(to_center);
+        vec3 _25 = _20 + (_23 * 0.00999999977648258209228515625);
+        vec3 _36 = _20 + (_23 * 0.100000001490116119384765625);
+        frag_color = vec4(max(texelFetch(triletex_trilesmp, ivec2(int(clamp(_25.z, 9.9999997473787516355514526367188e-05, 0.999989986419677734375) * 16.0), int(clamp(_25.y, 9.9999997473787516355514526367188e-05, 0.999989986419677734375) * 16.0) + (int(clamp(_25.x, 9.9999997473787516355514526367188e-05, 0.999989986419677734375) * 16.0) * 16)), 0).xyz, texelFetch(triletex_trilesmp, ivec2(int(clamp(_36.z, 9.9999997473787516355514526367188e-05, 0.999989986419677734375) * 16.0), int(clamp(_36.y, 9.9999997473787516355514526367188e-05, 0.999989986419677734375) * 16.0) + (int(clamp(_36.x, 9.9999997473787516355514526367188e-05, 0.999989986419677734375) * 16.0) * 16)), 0).xyz), 1.0);
     }
 
 */
@@ -94,15 +119,73 @@ fs_trile_source_glsl430 := u8.[
     0x36,0x29,0x20,0x75,0x6e,0x69,0x66,0x6f,0x72,0x6d,0x20,0x73,0x61,0x6d,0x70,0x6c,
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+    0x20,0x2a,0x20,0x31,0x36,0x2e,0x30,0x29,0x20,0x2a,0x20,0x31,0x36,0x29,0x29,0x2c,
+    0x20,0x30,0x29,0x2e,0x78,0x79,0x7a,0x29,0x2c,0x20,0x31,0x2e,0x30,0x29,0x3b,0x0a,
     0x7d,0x0a,0x0a,0x00,
 ];
 /*
@@ -112,11 +195,16 @@ fs_trile_source_glsl430 := u8.[
     layout(location = 0) in vec4 position;
     out vec4 fnormal;
     layout(location = 1) in vec4 normal;
+    out vec3 to_center;
+    layout(location = 2) in vec4 centre;
+    out vec3 vpos;
 
     void main()
     {
         gl_Position = mat4(trile_vs_params[0], trile_vs_params[1], trile_vs_params[2], trile_vs_params[3]) * vec4(position.xyz, 1.0);
         fnormal = normal;
+        to_center = centre.xyz - position.xyz;
+        vpos = position.xyz;
     }
 
 */
@@ -130,17 +218,26 @@ vs_trile_source_glsl300es := u8.[
     0x34,0x20,0x66,0x6e,0x6f,0x72,0x6d,0x61,0x6c,0x3b,0x0a,0x6c,0x61,0x79,0x6f,0x75,
     0x74,0x28,0x6c,0x6f,0x63,0x61,0x74,0x69,0x6f,0x6e,0x20,0x3d,0x20,0x31,0x29,0x20,
     0x69,0x6e,0x20,0x76,0x65,0x63,0x34,0x20,0x6e,0x6f,0x72,0x6d,0x61,0x6c,0x3b,0x0a,
-    0x0a,0x76,0x6f,0x69,0x64,0x20,0x6d,0x61,0x69,0x6e,0x28,0x29,0x0a,0x7b,0x0a,0x20,
-    0x20,0x20,0x20,0x67,0x6c,0x5f,0x50,0x6f,0x73,0x69,0x74,0x69,0x6f,0x6e,0x20,0x3d,
-    0x20,0x6d,0x61,0x74,0x34,0x28,0x74,0x72,0x69,0x6c,0x65,0x5f,0x76,0x73,0x5f,0x70,
-    0x61,0x72,0x61,0x6d,0x73,0x5b,0x30,0x5d,0x2c,0x20,0x74,0x72,0x69,0x6c,0x65,0x5f,
-    0x76,0x73,0x5f,0x70,0x61,0x72,0x61,0x6d,0x73,0x5b,0x31,0x5d,0x2c,0x20,0x74,0x72,
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+    0x65,0x72,0x3b,0x0a,0x6c,0x61,0x79,0x6f,0x75,0x74,0x28,0x6c,0x6f,0x63,0x61,0x74,
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+    0x69,0x6e,0x28,0x29,0x0a,0x7b,0x0a,0x20,0x20,0x20,0x20,0x67,0x6c,0x5f,0x50,0x6f,
+    0x73,0x69,0x74,0x69,0x6f,0x6e,0x20,0x3d,0x20,0x6d,0x61,0x74,0x34,0x28,0x74,0x72,
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     0x2c,0x20,0x74,0x72,0x69,0x6c,0x65,0x5f,0x76,0x73,0x5f,0x70,0x61,0x72,0x61,0x6d,
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-    0x0a,0x20,0x20,0x20,0x20,0x66,0x6e,0x6f,0x72,0x6d,0x61,0x6c,0x20,0x3d,0x20,0x6e,
-    0x6f,0x72,0x6d,0x61,0x6c,0x3b,0x0a,0x7d,0x0a,0x0a,0x00,
+    0x73,0x5b,0x31,0x5d,0x2c,0x20,0x74,0x72,0x69,0x6c,0x65,0x5f,0x76,0x73,0x5f,0x70,
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+    0x76,0x73,0x5f,0x70,0x61,0x72,0x61,0x6d,0x73,0x5b,0x33,0x5d,0x29,0x20,0x2a,0x20,
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+    0x7a,0x2c,0x20,0x31,0x2e,0x30,0x29,0x3b,0x0a,0x20,0x20,0x20,0x20,0x66,0x6e,0x6f,
+    0x72,0x6d,0x61,0x6c,0x20,0x3d,0x20,0x6e,0x6f,0x72,0x6d,0x61,0x6c,0x3b,0x0a,0x20,
+    0x20,0x20,0x20,0x74,0x6f,0x5f,0x63,0x65,0x6e,0x74,0x65,0x72,0x20,0x3d,0x20,0x63,
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+    0x74,0x69,0x6f,0x6e,0x2e,0x78,0x79,0x7a,0x3b,0x0a,0x20,0x20,0x20,0x20,0x76,0x70,
+    0x6f,0x73,0x20,0x3d,0x20,0x70,0x6f,0x73,0x69,0x74,0x69,0x6f,0x6e,0x2e,0x78,0x79,
+    0x7a,0x3b,0x0a,0x7d,0x0a,0x0a,0x00,
 ];
 /*
     #version 300 es
@@ -149,12 +246,18 @@ vs_trile_source_glsl300es := u8.[
 
     uniform highp sampler2D triletex_trilesmp;
 
-    layout(location = 0) out highp vec4 frag_color;
+    in highp vec3 vpos;
     in highp vec4 fnormal;
+    in highp vec3 to_center;
+    layout(location = 0) out highp vec4 frag_color;
 
     void main()
     {
-        frag_color = texture(triletex_trilesmp, vec2(0.0));
+        highp vec3 _20 = vpos - (fnormal.xyz * 0.00999999977648258209228515625);
+        highp vec3 _23 = normalize(to_center);
+        highp vec3 _25 = _20 + (_23 * 0.00999999977648258209228515625);
+        highp vec3 _36 = _20 + (_23 * 0.100000001490116119384765625);
+        frag_color = vec4(max(texelFetch(triletex_trilesmp, ivec2(int(clamp(_25.z, 9.9999997473787516355514526367188e-05, 0.999989986419677734375) * 16.0), int(clamp(_25.y, 9.9999997473787516355514526367188e-05, 0.999989986419677734375) * 16.0) + (int(clamp(_25.x, 9.9999997473787516355514526367188e-05, 0.999989986419677734375) * 16.0) * 16)), 0).xyz, texelFetch(triletex_trilesmp, ivec2(int(clamp(_36.z, 9.9999997473787516355514526367188e-05, 0.999989986419677734375) * 16.0), int(clamp(_36.y, 9.9999997473787516355514526367188e-05, 0.999989986419677734375) * 16.0) + (int(clamp(_36.x, 9.9999997473787516355514526367188e-05, 0.999989986419677734375) * 16.0) * 16)), 0).xyz), 1.0);
     }
 
 */
@@ -165,16 +268,74 @@ fs_trile_source_glsl300es := u8.[
     0x6f,0x6e,0x20,0x68,0x69,0x67,0x68,0x70,0x20,0x69,0x6e,0x74,0x3b,0x0a,0x0a,0x75,
     0x6e,0x69,0x66,0x6f,0x72,0x6d,0x20,0x68,0x69,0x67,0x68,0x70,0x20,0x73,0x61,0x6d,
     0x70,0x6c,0x65,0x72,0x32,0x44,0x20,0x74,0x72,0x69,0x6c,0x65,0x74,0x65,0x78,0x5f,
-    0x74,0x72,0x69,0x6c,0x65,0x73,0x6d,0x70,0x3b,0x0a,0x0a,0x6c,0x61,0x79,0x6f,0x75,
-    0x74,0x28,0x6c,0x6f,0x63,0x61,0x74,0x69,0x6f,0x6e,0x20,0x3d,0x20,0x30,0x29,0x20,
-    0x6f,0x75,0x74,0x20,0x68,0x69,0x67,0x68,0x70,0x20,0x76,0x65,0x63,0x34,0x20,0x66,
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-    0x32,0x28,0x30,0x2e,0x30,0x29,0x29,0x3b,0x0a,0x7d,0x0a,0x0a,0x00,
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 ];
 /*
     #include <metal_stdlib>
@@ -189,7 +350,9 @@ fs_trile_source_glsl300es := u8.[
 
     struct main0_out
     {
-        float4 fnormal [[user(locn0)]];
+        float3 to_center [[user(locn0)]];
+        float3 vpos [[user(locn1)]];
+        float4 fnormal [[user(locn2)]];
         float4 gl_Position [[position]];
     };
 
@@ -197,6 +360,7 @@ fs_trile_source_glsl300es := u8.[
     {
         float4 position [[attribute(0)]];
         float4 normal [[attribute(1)]];
+        float4 centre [[attribute(2)]];
     };
 
     vertex main0_out main0(main0_in in [[stage_in]], constant trile_vs_params& _19 [[buffer(0)]])
@@ -204,6 +368,8 @@ fs_trile_source_glsl300es := u8.[
         main0_out out = {};
         out.gl_Position = _19.mvp * float4(in.position.xyz, 1.0);
         out.fnormal = in.normal;
+        out.to_center = in.centre.xyz - in.position.xyz;
+        out.vpos = in.position.xyz;
         return out;
     }
 
@@ -218,30 +384,42 @@ vs_trile_source_metal_macos := u8.[
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 ];
 /*
@@ -255,10 +433,21 @@ vs_trile_source_metal_macos := u8.[
         float4 frag_color [[color(0)]];
     };
 
-    fragment main0_out main0(texture2d<float> triletex [[texture(0)]], sampler trilesmp [[sampler(0)]])
+    struct main0_in
+    {
+        float3 to_center [[user(locn0)]];
+        float3 vpos [[user(locn1)]];
+        float4 fnormal [[user(locn2)]];
+    };
+
+    fragment main0_out main0(main0_in in [[stage_in]], texture2d<float> triletex [[texture(0)]], sampler trilesmp [[sampler(0)]])
     {
         main0_out out = {};
-        out.frag_color = triletex.sample(trilesmp, float2(0.0));
+        float3 _20 = in.vpos - (in.fnormal.xyz * 0.00999999977648258209228515625);
+        float3 _23 = fast::normalize(in.to_center);
+        float3 _25 = _20 + (_23 * 0.00999999977648258209228515625);
+        float3 _36 = _20 + (_23 * 0.100000001490116119384765625);
+        out.frag_color = float4(fast::max(triletex.read(uint2(int2(int(fast::clamp(_25.z, 9.9999997473787516355514526367188e-05, 0.999989986419677734375) * 16.0), int(fast::clamp(_25.y, 9.9999997473787516355514526367188e-05, 0.999989986419677734375) * 16.0) + (int(fast::clamp(_25.x, 9.9999997473787516355514526367188e-05, 0.999989986419677734375) * 16.0) * 16))), 0).xyz, triletex.read(uint2(int2(int(fast::clamp(_36.z, 9.9999997473787516355514526367188e-05, 0.999989986419677734375) * 16.0), int(fast::clamp(_36.y, 9.9999997473787516355514526367188e-05, 0.999989986419677734375) * 16.0) + (int(fast::clamp(_36.x, 9.9999997473787516355514526367188e-05, 0.999989986419677734375) * 16.0) * 16))), 0).xyz), 1.0);
         return out;
     }
 
@@ -272,20 +461,86 @@ fs_trile_source_metal_macos := u8.[
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+    0x31,0x34,0x35,0x32,0x36,0x33,0x36,0x37,0x31,0x38,0x38,0x65,0x2d,0x30,0x35,0x2c,
+    0x20,0x30,0x2e,0x39,0x39,0x39,0x39,0x38,0x39,0x39,0x38,0x36,0x34,0x31,0x39,0x36,
+    0x37,0x37,0x37,0x33,0x34,0x33,0x37,0x35,0x29,0x20,0x2a,0x20,0x31,0x36,0x2e,0x30,
+    0x29,0x20,0x2b,0x20,0x28,0x69,0x6e,0x74,0x28,0x66,0x61,0x73,0x74,0x3a,0x3a,0x63,
+    0x6c,0x61,0x6d,0x70,0x28,0x5f,0x33,0x36,0x2e,0x78,0x2c,0x20,0x39,0x2e,0x39,0x39,
+    0x39,0x39,0x39,0x39,0x37,0x34,0x37,0x33,0x37,0x38,0x37,0x35,0x31,0x36,0x33,0x35,
+    0x35,0x35,0x31,0x34,0x35,0x32,0x36,0x33,0x36,0x37,0x31,0x38,0x38,0x65,0x2d,0x30,
+    0x35,0x2c,0x20,0x30,0x2e,0x39,0x39,0x39,0x39,0x38,0x39,0x39,0x38,0x36,0x34,0x31,
+    0x39,0x36,0x37,0x37,0x37,0x33,0x34,0x33,0x37,0x35,0x29,0x20,0x2a,0x20,0x31,0x36,
+    0x2e,0x30,0x29,0x20,0x2a,0x20,0x31,0x36,0x29,0x29,0x29,0x2c,0x20,0x30,0x29,0x2e,
+    0x78,0x79,0x7a,0x29,0x2c,0x20,0x31,0x2e,0x30,0x29,0x3b,0x0a,0x20,0x20,0x20,0x20,
+    0x72,0x65,0x74,0x75,0x72,0x6e,0x20,0x6f,0x75,0x74,0x3b,0x0a,0x7d,0x0a,0x0a,0x00,
+
 ];
 trile_shader_desc :: (backend: sg_backend) -> sg_shader_desc {
     desc: sg_shader_desc;
@@ -300,6 +555,8 @@ trile_shader_desc :: (backend: sg_backend) -> sg_shader_desc {
         desc.attrs[0].glsl_name = "position";
         desc.attrs[1].base_type = .FLOAT;
         desc.attrs[1].glsl_name = "normal";
+        desc.attrs[2].base_type = .FLOAT;
+        desc.attrs[2].glsl_name = "centre";
         desc.uniform_blocks[0].stage = .VERTEX;
         desc.uniform_blocks[0].layout = .STD140;
         desc.uniform_blocks[0].size = 64;
@@ -325,6 +582,8 @@ trile_shader_desc :: (backend: sg_backend) -> sg_shader_desc {
         desc.attrs[0].glsl_name = "position";
         desc.attrs[1].base_type = .FLOAT;
         desc.attrs[1].glsl_name = "normal";
+        desc.attrs[2].base_type = .FLOAT;
+        desc.attrs[2].glsl_name = "centre";
         desc.uniform_blocks[0].stage = .VERTEX;
         desc.uniform_blocks[0].layout = .STD140;
         desc.uniform_blocks[0].size = 64;
@@ -348,6 +607,7 @@ trile_shader_desc :: (backend: sg_backend) -> sg_shader_desc {
         desc.fragment_func.entry = "main0";
         desc.attrs[0].base_type = .FLOAT;
         desc.attrs[1].base_type = .FLOAT;
+        desc.attrs[2].base_type = .FLOAT;
         desc.uniform_blocks[0].stage = .VERTEX;
         desc.uniform_blocks[0].layout = .STD140;
         desc.uniform_blocks[0].size = 64;
diff --git a/src/shaders/shader_trile.glsl b/src/shaders/shader_trile.glsl
index a321aac..93ba009 100644
--- a/src/shaders/shader_trile.glsl
+++ b/src/shaders/shader_trile.glsl
@@ -2,22 +2,30 @@
 
 in vec4 position;
 in vec4 normal;
+in vec4 centre;
 
 layout(binding=0) uniform trile_vs_params {
     mat4 mvp;
 };
 
 
+out vec3 to_center;
+out vec3 vpos;
 out vec4 fnormal;
 
 void main() {
+    
     gl_Position = mvp * vec4(position.xyz, 1.0);
     fnormal = normal;
+    to_center = centre.xyz - position.xyz;
+    vpos = position.xyz;
 }
 @end
 
 @fs fs_trile
 
+in vec3 to_center;
+in vec3 vpos;
 in vec4 fnormal;
 out vec4 frag_color;
 
@@ -26,7 +34,19 @@ layout(binding = 0) uniform sampler trilesmp;
 
 void main() {
     //frag_color = vec4((fnormal.xyz + vec3(1.0, 1.0, 1.0)) * 0.5, 1.0);
-    frag_color = texture(sampler2D(triletex, trilesmp), vec2(0.0));
+    vec3 pos_after_adjust_f = vpos - fnormal.xyz * 0.01 + normalize(to_center) * 0.01;
+    vec3 pos_after_adjust_b = vpos - fnormal.xyz * 0.01 + normalize(to_center) * 0.1;
+    int xpos_f = int(clamp(pos_after_adjust_f.z, 0.0001, 0.99999) * 16.0);
+    int ypos_f = int(clamp(pos_after_adjust_f.y, 0.0001, 0.99999) * 16.0);
+    int zpos_f = int(clamp(pos_after_adjust_f.x, 0.0001, 0.99999) * 16.0);
+    int xpos_b = int(clamp(pos_after_adjust_b.z, 0.0001, 0.99999) * 16.0);
+    int ypos_b = int(clamp(pos_after_adjust_b.y, 0.0001, 0.99999) * 16.0);
+    int zpos_b = int(clamp(pos_after_adjust_b.x, 0.0001, 0.99999) * 16.0);
+
+    vec4 trixel_material_b = texelFetch(sampler2D(triletex, trilesmp), ivec2(xpos_b, ypos_b + zpos_b * 16), 0);
+    vec4 trixel_material_f = texelFetch(sampler2D(triletex, trilesmp), ivec2(xpos_f, ypos_f + zpos_f * 16), 0);
+    frag_color = vec4(max(trixel_material_f.xyz, trixel_material_b.xyz), 1.0);
+    // frag_color = vec4(vec3(length(to_center)), 1.0);
 }
 @end
 
diff --git a/src/trile.jai b/src/trile.jai
index 13af734..46410e0 100644
--- a/src/trile.jai
+++ b/src/trile.jai
@@ -11,6 +11,7 @@ Trile_GFX :: struct {
     trixel_colors : sg_image;
     vertex_buffer : sg_buffer;
     normal_buffer : sg_buffer;
+    centre_buffer : sg_buffer;
     vertex_count  : s64;
 };
 
@@ -41,6 +42,7 @@ set_trile_gfx :: (name: string, gfx: Trile_GFX, skip_preexist_check: bool = fals
         if success {
             sg_destroy_buffer(old_gfx.vertex_buffer);
             sg_destroy_buffer(old_gfx.normal_buffer);
+            sg_destroy_image(old_gfx.trixel_colors);
             print("Destroyed old GFX buffers for trile: %\n", name);
         }
     }