diff --git a/res/textures/blocks/pane.png b/res/textures/blocks/pane.png
new file mode 100644
index 00000000..f9e2a5d7
Binary files /dev/null and b/res/textures/blocks/pane.png differ
diff --git a/res/textures/blocks/pane_side.png b/res/textures/blocks/pane_side.png
new file mode 100644
index 00000000..5d68d745
Binary files /dev/null and b/res/textures/blocks/pane_side.png differ
diff --git a/res/textures/blocks/pane_side_2.png b/res/textures/blocks/pane_side_2.png
new file mode 100644
index 00000000..dfd6ba27
Binary files /dev/null and b/res/textures/blocks/pane_side_2.png differ
diff --git a/src/content/Content.cpp b/src/content/Content.cpp
index 4b61b9e0..6184edb7 100644
--- a/src/content/Content.cpp
+++ b/src/content/Content.cpp
@@ -22,10 +22,12 @@ Content* ContentBuilder::build() {
     vector<Block*> blockDefsIndices;
     for (const string& name : blockIds) {
         Block* def = blockDefs[name];
-        def->id = blockDefsIndices.size();
+        
+        // Generating runtime info
+        def->rt.id = blockDefsIndices.size();
         def->rt.emissive = *((uint32_t*)def->emission);
         
-        // build hitbox grid 3d for raycasts
+        // building hitbox grid 3d for raycasts
         const AABB& hitbox = def->hitbox;
         for (uint gy = 0; gy < BLOCK_AABB_GRID; gy++) {
             for (uint gz = 0; gz < BLOCK_AABB_GRID; gz++) {
diff --git a/src/definitions.cpp b/src/definitions.cpp
index 7deec6dc..fbdac15d 100644
--- a/src/definitions.cpp
+++ b/src/definitions.cpp
@@ -106,6 +106,18 @@ void setup_definitions(ContentBuilder* builder) {
 	block = new Block("base:blue_lamp", "blue_lamp");
 	block->emission[2] = 15;
 	builder->add(block);
+
+	// block added for test
+	block = new Block("base:pane", "pane");
+	block->textureFaces[FACE_MX] = "pane_side";
+	block->textureFaces[FACE_PX] = "pane_side";
+	block->textureFaces[FACE_MY] = "pane_side_2";
+	block->textureFaces[FACE_PY] = "pane_side_2";
+	block->model = BlockModel::aabb;
+	block->hitbox.scale(vec3(1.0f, 1.0f, 0.2f), vec3(0.5f, 0.5f, 0.0f));
+	block->lightPassing = true;
+	block->skyLightPassing = true;
+	builder->add(block);
 }
 
 void setup_bindings() {
diff --git a/src/frontend/gui/GUI.cpp b/src/frontend/gui/GUI.cpp
index 5aeda08c..4710b4c4 100644
--- a/src/frontend/gui/GUI.cpp
+++ b/src/frontend/gui/GUI.cpp
@@ -12,6 +12,8 @@
 #include "../../window/input.h"
 #include "../../window/Camera.h"
 
+using glm::vec2;
+using glm::vec3;
 using std::string;
 using std::shared_ptr;
 using namespace gui;
diff --git a/src/frontend/gui/controls.cpp b/src/frontend/gui/controls.cpp
index b9dba5f9..35f9cc57 100644
--- a/src/frontend/gui/controls.cpp
+++ b/src/frontend/gui/controls.cpp
@@ -11,6 +11,8 @@ using std::string;
 using std::wstring;
 using std::shared_ptr;
 using glm::vec2;
+using glm::vec3;
+using glm::vec4;
 
 #define KEY_ESCAPE 256
 #define KEY_ENTER 257
diff --git a/src/frontend/gui/panels.cpp b/src/frontend/gui/panels.cpp
index 87771cd8..6c77eaa3 100644
--- a/src/frontend/gui/panels.cpp
+++ b/src/frontend/gui/panels.cpp
@@ -171,7 +171,7 @@ void Panel::refresh() {
         }
         if (resizing_) {
             if (maxLength_)
-                this->size(vec2(size.x, min(maxLength_, (int)(y+padding.w))));
+                this->size(vec2(size.x, glm::min(maxLength_, (int)(y+padding.w))));
             else
                 this->size(vec2(size.x, y+padding.w));
         }
@@ -193,7 +193,7 @@ void Panel::refresh() {
         bool increased = maxh > size.y;
         if (resizing_) {
             if (maxLength_)
-                this->size(vec2(min(maxLength_, (int)(x+padding.z)), size.y));
+                this->size(vec2(glm::min(maxLength_, (int)(x+padding.z)), size.y));
             else
                 this->size(vec2(x+padding.z, size.y));
         }
diff --git a/src/frontend/hud.cpp b/src/frontend/hud.cpp
index 475177af..0d2bfa07 100644
--- a/src/frontend/hud.cpp
+++ b/src/frontend/hud.cpp
@@ -91,11 +91,15 @@ HudRenderer::HudRenderer(Engine* engine,
 			   L" visible: "+std::to_wstring(level->chunks->visible);
 	})));
 	panel->add(shared_ptr<Label>(create_label([this](){
+		auto player = this->level->player;
+		auto indices = this->level->content->indices;
+		auto def = indices->getBlockDef(player->selectedVoxel.id);
 		std::wstringstream stream;
 		stream << std::hex << this->level->player->selectedVoxel.states;
-
-		auto player = this->level->player;
-		return L"block-selected: "+std::to_wstring(player->selectedVoxel.id)+
+		if (def) {
+			stream << L" (" << util::str2wstr_utf8(def->name) << L")";
+		}
+		return L"block: "+std::to_wstring(player->selectedVoxel.id)+
 		       L" "+stream.str();
 	})));
 	panel->add(shared_ptr<Label>(create_label([this](){
@@ -236,12 +240,17 @@ void HudRenderer::drawContentAccess(const GfxContext& ctx, Player* player) {
 		} else {
 			tint = vec4(1.0f);
 		}
-		
-		if (cblock->model == BlockModel::block){
-			batch->blockSprite(x, y, icon_size, icon_size, &cache->getRegion(cblock->id, 0), tint);
-		} else if (cblock->model == BlockModel::xsprite){
-			batch->sprite(x, y, icon_size, icon_size, cache->getRegion(cblock->id, 3), tint);
-		}
+		drawBlockPreview(cblock, x, y, icon_size, icon_size, tint);
+	}
+}
+
+void HudRenderer::drawBlockPreview(const Block* def, float x, float y, float w, float h, vec4 tint) {
+	if (def->model == BlockModel::block){
+		batch->blockSprite(x, y, w, h, &cache->getRegion(def->rt.id, 0), tint);
+	} else if (def->model == BlockModel::aabb) {
+		batch->blockSprite(x, y, w, h, &cache->getRegion(def->rt.id, 0), tint, def->hitbox.size());
+	} else if (def->model == BlockModel::xsprite){
+		batch->sprite(x, y, w, h, cache->getRegion(def->rt.id, 3), tint);
 	}
 }
 
@@ -311,11 +320,7 @@ void HudRenderer::draw(const GfxContext& ctx){
 	{
 		Block* cblock = contentIds->getBlockDef(player->choosenBlock);
 		assert(cblock != nullptr);
-		if (cblock->model == BlockModel::block){
-			batch->blockSprite(width-56, uicamera->fov - 56, 48, 48, &cache->getRegion(cblock->id, 0), vec4(1.0f));
-		} else if (cblock->model == BlockModel::xsprite){
-			batch->sprite(width-56, uicamera->fov - 56, 48, 48, cache->getRegion(cblock->id, 3), vec4(1.0f));
-		}
+		drawBlockPreview(cblock, width - 56, uicamera->fov - 56, 48, 48, vec4(1.0f));
 	}
 
 	if (pause) {
diff --git a/src/frontend/hud.h b/src/frontend/hud.h
index cdb7d3fa..25f595af 100644
--- a/src/frontend/hud.h
+++ b/src/frontend/hud.h
@@ -4,11 +4,14 @@
 #include <string>
 #include <memory>
 
+#include <glm/glm.hpp>
+
 #include "../graphics/GfxContext.h"
 
 class Batch2D;
 class Camera;
 class Level;
+class Block;
 class Assets;
 class Player;
 class Level;
@@ -38,6 +41,8 @@ class HudRenderer {
 	gui::GUI* gui;
 	const ContentGfxCache* const cache;
 	WorldRenderer* renderer;
+
+	void drawBlockPreview(const Block* def, float x, float y, float w, float h, glm::vec4 tint);
 public:
 	HudRenderer(Engine* engine, 
 				Level* level, 
diff --git a/src/graphics/Batch2D.cpp b/src/graphics/Batch2D.cpp
index 6885e752..a44dc9b6 100644
--- a/src/graphics/Batch2D.cpp
+++ b/src/graphics/Batch2D.cpp
@@ -7,6 +7,10 @@
 
 #define VERTEX_SIZE 8
 
+using glm::vec2;
+using glm::vec3;
+using glm::vec4;
+
 Batch2D::Batch2D(size_t capacity) : capacity(capacity), offset(0), color(1.0f, 1.0f, 1.0f, 1.0f){
 	const vattr attrs[] = {
 		{2}, {2}, {4}, {0}
@@ -47,8 +51,8 @@ void Batch2D::vertex(float x, float y,
 	buffer[index++] = a;
 }
 void Batch2D::vertex(vec2 point,
-		vec2 uvpoint,
-		float r, float g, float b, float a) {
+					vec2 uvpoint,
+					float r, float g, float b, float a) {
 	buffer[index++] = point.x;
 	buffer[index++] = point.y;
 	buffer[index++] = uvpoint.x;
@@ -299,8 +303,11 @@ void Batch2D::sprite(float x, float y, float w, float h, int atlasRes, int index
 	rect(x, y, w, h, u, v, scale, scale, tint.r, tint.g, tint.b, tint.a);
 }
 
-void Batch2D::blockSprite(float x, float y, float w, float h, const UVRegion regions[], vec4 tint){
-	// TODO: rewrite it
+
+#include <iostream>
+
+void Batch2D::blockSprite(float x, float y, float w, float h, const UVRegion regions[], vec4 tint, vec3 size){
+	// TODO: replace it using actual 3D with ortho projection
 	float uu = (regions[3].u1);
 	float vu = (regions[3].v1);
 
@@ -313,16 +320,24 @@ void Batch2D::blockSprite(float x, float y, float w, float h, const UVRegion reg
 	if (this->index + 18*VERTEX_SIZE >= capacity)
 		render();
 
+	float d = (w + h) * 0.5f;
 	float ar = 0.88f;
 	float ox = x + (w * 0.5f);
 	float sx = w * 0.5f * ar;
-	vec2 points[7] =   {vec2(ox,        y+(h*0.5f)),
-						vec2(ox-sx,     y+(h*0.25f)),
-						vec2(ox,        y),
-						vec2(ox+sx,     y+(h*0.25f)),
-						vec2(ox+sx,     y+(h*0.75f)),
-						vec2(ox,        y+h),
-						vec2(ox-sx,     y+(h*0.75f))};
+	float hh = h * 0.25f;
+	float ww = w * 0.25f;
+	float dd = d * 0.25f;
+
+	vec3 half = size * h * 0.25f;
+
+	y += hh * 2.0f;
+	vec2 points[7] =   {vec2(ox-ww+half.x+dd-half.z,    	y+hh-half.y), // center
+						vec2(ox-sx+ww-half.x+dd-half.z,   y-half.y+ww-half.x), // left
+						vec2(ox+ww-half.x-dd+half.z,      y-hh-half.y+ww-half.x+dd-half.z), // top
+						vec2(ox+sx-ww+half.x-dd+half.z,   y-half.y+dd-half.z), // right
+						vec2(ox+sx-ww+half.x-dd+half.z,   y+half.y+dd-half.z), // b-right
+						vec2(ox-ww+half.x+dd-half.z,      y+hh+half.y), // bottom
+						vec2(ox-sx+ww-half.x+dd-half.z,   y+half.y+ww-half.x)}; // b-left
 
 	vec2 uvpoints[8] = {vec2(uu,        vu),
 						vec2(uu+scalex,  vu),
diff --git a/src/graphics/Batch2D.h b/src/graphics/Batch2D.h
index c19becf3..6269795d 100644
--- a/src/graphics/Batch2D.h
+++ b/src/graphics/Batch2D.h
@@ -6,8 +6,6 @@
 
 #include "UVRegion.h"
 
-using namespace glm;
-
 class Mesh;
 class Texture;
 class Sprite;
@@ -25,8 +23,8 @@ class Batch2D {
 	void vertex(float x, float y,
 			float u, float v,
 			float r, float g, float b, float a);
-	void vertex(vec2 point,
-			vec2 uvpoint,
+	void vertex(glm::vec2 point,
+			glm::vec2 uvpoint,
 			float r, float g, float b, float a);
 
 public:
@@ -37,10 +35,10 @@ public:
 
 	void begin();
 	void texture(Texture* texture);
-	void sprite(float x, float y, float w, float h, const UVRegion& region, vec4 tint);
+	void sprite(float x, float y, float w, float h, const UVRegion& region, glm::vec4 tint);
 	void sprite(Sprite* sprite);
-	void sprite(float x, float y, float w, float h, int atlasRes, int index, vec4 tint);
-	void blockSprite(float x, float y, float w, float h, const UVRegion regions[], vec4 tint);
+	void sprite(float x, float y, float w, float h, int atlasRes, int index, glm::vec4 tint);
+	void blockSprite(float x, float y, float w, float h, const UVRegion regions[], glm::vec4 tint, glm::vec3 size=glm::vec3(1.0f, 1.0f, 1.0f));
 	void point(float x, float y, float r, float g, float b, float a);
 	void line(float x1, float y1, float x2, float y2, float r, float g, float b, float a);
 	void rect(float x, float y,
@@ -48,7 +46,7 @@ public:
 			float ox, float oy,
 			float angle, UVRegion region,
 			bool flippedX, bool flippedY,
-			vec4 tint);
+			glm::vec4 tint);
 
 	void rect(float x, float y, float w, float h);
 	void rect(float x, float y, float w, float h,
diff --git a/src/graphics/BlocksRenderer.cpp b/src/graphics/BlocksRenderer.cpp
index 8f3edc61..1e75ee93 100644
--- a/src/graphics/BlocksRenderer.cpp
+++ b/src/graphics/BlocksRenderer.cpp
@@ -189,6 +189,57 @@ void BlocksRenderer::blockXSprite(int x, int y, int z, const vec3& size, const U
 		vec3(-1.0f, 0, 1.0f), vec3(0, 1, 0), texface2, lights, do_tint(0.8f));
 }
 
+void BlocksRenderer::blockCubeShaded(const vec3& pos, const vec3& size, const UVRegion(&texfaces)[6], const Block* block, ubyte states) {
+	int rot = 0;
+	float x = pos.x;
+	float y = pos.y;
+	float z = pos.z;
+	{
+		vec4 lights[]{
+				pickSoftLight(x, y, z + 1, {1, 0, 0}, {0, 1, 0}),
+				pickSoftLight(x + 1, y, z + 1, {1, 0, 0}, {0, 1, 0}),
+				pickSoftLight(x + 1, y + 1, z + 1, {1, 0, 0}, {0, 1, 0}),
+				pickSoftLight(x, y + 1, z + 1, {1, 0, 0}, {0, 1, 0}) };
+		face(vec3(x, y, z), size.x, size.y, vec3(1, 0, 0), vec3(0, 1, 0), texfaces[5], lights, do_tint(0.9f), rot == 1);
+	} {
+		vec4 lights[]{
+				pickSoftLight(pos.x, pos.y, pos.z - 1, {-1, 0, 0}, {0, 1, 0}),
+				pickSoftLight(pos.x - 1, pos.y, pos.z - 1, {-1, 0, 0}, {0, 1, 0}),
+				pickSoftLight(pos.x - 1, pos.y + 1, pos.z - 1, {-1, 0, 0}, {0, 1, 0}),
+				pickSoftLight(pos.x, pos.y + 1, pos.z - 1, {-1, 0, 0}, {0, 1, 0}) };
+		face(vec3(x + size.x, y, z - size.z), size.x, size.y, vec3(-1, 0, 0), vec3(0, 1, 0), texfaces[4], lights, do_tint(0.75f), rot == 1);
+	} {
+		vec4 lights[]{
+				pickSoftLight(x, pos.y + 1, pos.z + 1, {1, 0, 0}, {0, 0, 1}),
+				pickSoftLight(x + 1, pos.y + 1, pos.z + 1, {1, 0, 0}, {0, 0, 1}),
+				pickSoftLight(x + 1, pos.y + 1, pos.z, {1, 0, 0}, {0, 0, 1}),
+				pickSoftLight(x, pos.y + 1, pos.z, {1, 0, 0}, {0, 0, 1}) };
+
+		face(vec3(x, y + size.y, z), size.x, size.z, vec3(1, 0, 0), vec3(0, 0, -1), texfaces[3], lights, vec4(1.0f), rot == 1);
+	} {
+		vec4 lights[]{
+				pickSoftLight(pos.x, pos.y - 1, pos.z - 1, {1, 0, 0}, {0, 0, -1}),
+				pickSoftLight(pos.x + 1, y - 1, pos.z - 1, {1, 0, 0}, {0, 0,-1}),
+				pickSoftLight(pos.x + 1, y - 1, pos.z, {1, 0, 0}, {0, 0, -1}),
+				pickSoftLight(x, y - 1, z, {1, 0, 0}, {0, 0, -1}) };
+		face(vec3(x, y, z - size.z), size.x, size.z, vec3(1, 0, 0), vec3(0, 0, 1), texfaces[2], lights, do_tint(0.6f), rot == 1);
+	} {
+		vec4 lights[]{
+				pickSoftLight(x - 1, y, z - 1, {0, 0, -1}, {0, 1, 0}),
+				pickSoftLight(x - 1, y, z, {0, 0, -1}, {0, 1, 0}),
+				pickSoftLight(x - 1, y + 1, z, {0, 0, -1}, {0, 1, 0}),
+				pickSoftLight(x - 1, y + 1, z - 1, {0, 0, -1}, {0, 1, 0}) };
+		face(vec3(x, y, z - size.z), size.z, size.y, vec3(0, 0, 1), vec3(0, 1, 0), texfaces[0], lights, do_tint(0.7f), rot == 3);
+	} {
+		vec4 lights[]{
+				pickSoftLight(x + 1, y, z, {0, 0, -1}, {0, 1, 0}),
+				pickSoftLight(x + 1, y, z - 1, {0, 0, -1}, {0, 1, 0}),
+				pickSoftLight(x + 1, y + 1, z - 1, {0, 0, -1}, {0, 1, 0}),
+				pickSoftLight(x + 1, y + 1, z, {0, 0, -1}, {0, 1, 0}) };
+		face(vec3(x + size.x, y, z), size.z, size.y, vec3(0, 0, -1), vec3(0, 1, 0), texfaces[1], lights, do_tint(0.8f), rot == 3);
+	}
+}
+
 void BlocksRenderer::blockCubeShaded(int x, int y, int z, const vec3& size, const UVRegion(&texfaces_)[6], const Block* block, ubyte states) {
 	ubyte group = block->drawGroup;
 	UVRegion texfaces[6];
@@ -277,7 +328,7 @@ bool BlocksRenderer::isOpen(int x, int y, int z, ubyte group) const {
 	if (id == BLOCK_VOID)
 		return false;
 	const Block& block = *blockDefsCache[id];
-	if (block.drawGroup != group && block.lightPassing) {
+	if ((block.drawGroup != group && block.lightPassing) || !block.rt.solid) {
 		return true;
 	}
 	return !id;
@@ -315,6 +366,11 @@ vec4 BlocksRenderer::pickSoftLight(int x, int y, int z,
 		pickLight(x - right.x, y - right.y, z - right.z)) * 0.25f;
 }
 
+vec4 BlocksRenderer::pickSoftLight(float x, float y, float z, 
+								  const ivec3& right, const ivec3& up) const {
+	return pickSoftLight(int(round(x)), int(round(y)), int(round(z)), right, up);
+}
+
 void BlocksRenderer::render(const voxel* voxels, int atlas_size) {
 	int begin = chunk->bottom * (CHUNK_W * CHUNK_D);
 	int end = chunk->top * (CHUNK_W * CHUNK_D);
@@ -344,6 +400,14 @@ void BlocksRenderer::render(const voxel* voxels, int atlas_size) {
 				blockXSprite(x, y, z, vec3(1.0f), texfaces[FACE_MX], texfaces[FACE_MZ], 1.0f);
 				break;
 			}
+			case BlockModel::aabb: {
+				vec3 size = def.hitbox.size();
+				vec3 off = def.hitbox.min();
+				off.z *= -1.0f;
+				off.z = -1.0f-off.z + size.z;
+				blockCubeShaded(off+vec3(x,y,z), size, texfaces, &def, vox.states);
+				break;
+			}
 			default:
 				break;
 			}
diff --git a/src/graphics/BlocksRenderer.h b/src/graphics/BlocksRenderer.h
index f699301e..ba244137 100644
--- a/src/graphics/BlocksRenderer.h
+++ b/src/graphics/BlocksRenderer.h
@@ -63,6 +63,7 @@ class BlocksRenderer {
 	void cube(const glm::vec3& coord, const glm::vec3& size, const UVRegion(&faces)[6]);
 	void blockCube(int x, int y, int z, const glm::vec3& size, const UVRegion(&faces)[6], ubyte group);
 	void blockCubeShaded(int x, int y, int z, const glm::vec3& size, const UVRegion(&faces)[6], const Block* block, ubyte states);
+	void blockCubeShaded(const glm::vec3& pos, const glm::vec3& size, const UVRegion(&faces)[6], const Block* block, ubyte states);
 	void blockXSprite(int x, int y, int z, const glm::vec3& size, const UVRegion& face1, const UVRegion& face2, float spread);
 
 	bool isOpenForLight(int x, int y, int z) const;
@@ -70,6 +71,7 @@ class BlocksRenderer {
 
 	glm::vec4 pickLight(int x, int y, int z) const;
 	glm::vec4 pickSoftLight(int x, int y, int z, const glm::ivec3& right, const glm::ivec3& up) const;
+	glm::vec4 pickSoftLight(float x, float y, float z, const glm::ivec3& right, const glm::ivec3& up) const;
 	void render(const voxel* voxels, int atlas_size);
 public:
 	BlocksRenderer(size_t capacity, const Content* content, const ContentGfxCache* cache, const EngineSettings& settings);
diff --git a/src/graphics/Font.cpp b/src/graphics/Font.cpp
index c13681f6..0abf7962 100644
--- a/src/graphics/Font.cpp
+++ b/src/graphics/Font.cpp
@@ -2,6 +2,8 @@
 #include "Texture.h"
 #include "Batch2D.h"
 
+using glm::vec4;
+
 Font::Font(std::vector<Texture*> pages, int lineHeight) : lineHeight_(lineHeight), pages(pages) {
 }
 
@@ -10,22 +12,6 @@ Font::~Font(){
 		delete texture;
 }
 
-// int Font::getGlyphWidth(char c) {
-// 	switch (c){
-// 		case 'l':
-// 		case 'i':
-// 		case 'j':
-// 		case '|':
-// 		case '.':
-// 		case ',':
-// 		case ':':
-// 		case ';': return 7;
-// 		case 't': return 8;
-// 		case ' ': return 7;
-// 	}
-// 	return 7;
-// }
-
 int Font::lineHeight() const {
 	return lineHeight_;
 }
diff --git a/src/graphics/Texture.cpp b/src/graphics/Texture.cpp
index 74ed76bd..0d5ae803 100644
--- a/src/graphics/Texture.cpp
+++ b/src/graphics/Texture.cpp
@@ -4,10 +4,12 @@
 
 #include "ImageData.h"
 
-Texture::Texture(unsigned int id, int width, int height) : id(id), width(width), height(height) {
+Texture::Texture(uint id, int width, int height) 
+	: id(id), width(width), height(height) {
 }
 
-Texture::Texture(unsigned char* data, int width, int height, uint format) : width(width), height(height) {
+Texture::Texture(ubyte* data, int width, int height, uint format) 
+	: width(width), height(height) {
 	glGenTextures(1, &id);
 	glBindTexture(GL_TEXTURE_2D, id);
 	glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
@@ -28,7 +30,7 @@ void Texture::bind(){
 	glBindTexture(GL_TEXTURE_2D, id);
 }
 
-void Texture::reload(unsigned char* data){
+void Texture::reload(ubyte* data){
 	glBindTexture(GL_TEXTURE_2D, id);
 	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0,
 		GL_RGBA, GL_UNSIGNED_BYTE, (GLvoid *) data);
@@ -36,6 +38,8 @@ void Texture::reload(unsigned char* data){
 }
 
 Texture* Texture::from(const ImageData* image) {
+	uint width = image->getWidth();
+	uint height = image->getHeight();
 	uint format;
 	const void* data = image->getData();
 	switch (image->getFormat())	{
@@ -44,5 +48,5 @@ Texture* Texture::from(const ImageData* image) {
 		default:
 			throw std::runtime_error("unsupported image data format");
 	}
-	return new Texture((unsigned char*)data, image->getWidth(), image->getHeight(), format);
+	return new Texture((ubyte*)data, width, height, format);
 }
\ No newline at end of file
diff --git a/src/graphics/Texture.h b/src/graphics/Texture.h
index a01e9124..4e85cb86 100644
--- a/src/graphics/Texture.h
+++ b/src/graphics/Texture.h
@@ -8,15 +8,15 @@ class ImageData;
 
 class Texture {
 public:
-	unsigned int id;
+	uint id;
 	int width;
 	int height;
-	Texture(unsigned int id, int width, int height);
-	Texture(unsigned char* data, int width, int height, uint format);
+	Texture(uint id, int width, int height);
+	Texture(ubyte* data, int width, int height, uint format);
 	~Texture();
 
 	void bind();
-	void reload(unsigned char* data);
+	void reload(ubyte* data);
 
 	static Texture* from(const ImageData* image);
 };
diff --git a/src/logic/PlayerController.cpp b/src/logic/PlayerController.cpp
index b85f4df3..cf7b466e 100644
--- a/src/logic/PlayerController.cpp
+++ b/src/logic/PlayerController.cpp
@@ -180,7 +180,7 @@ void PlayerController::updateControls(float delta){
 }
 
 void PlayerController::updateInteraction(){
-	const ContentIndices* contentIds = level->contentIds;
+	auto contentIds = level->content->indices;
 	Chunks* chunks = level->chunks;
 	Player* player = level->player;
 	Lighting* lighting = level->lighting;
diff --git a/src/voxels/Block.h b/src/voxels/Block.h
index 1b1b1e39..e77ddeef 100644
--- a/src/voxels/Block.h
+++ b/src/voxels/Block.h
@@ -4,6 +4,7 @@
 #include <string>
 
 #include "../maths/aabb.h"
+#include "../typedefs.h"
 
 #define FACE_MX 0
 #define FACE_PX 1
@@ -15,13 +16,15 @@
 #define BLOCK_AABB_GRID 16
 
 enum class BlockModel {
-	none, block, xsprite
+	none, // invisible 
+	block, // default shape
+	xsprite, // X-shape (grass)
+	aabb // box shaped as block hitbox
 };
 
 class Block {
 public:
 	std::string const name;
-	unsigned int id;
 						               //  0 1   2 3   4 5
 	std::string textureFaces[6]; // -x,x, -y,y, -z,z
 	unsigned char emission[4];
@@ -36,6 +39,7 @@ public:
 	AABB hitbox;
 
 	struct {
+		blockid_t id;
 		bool solid = true;
 		bool emissive = false;
 		bool hitboxGrid[BLOCK_AABB_GRID][BLOCK_AABB_GRID][BLOCK_AABB_GRID];
diff --git a/src/voxels/WorldGenerator.cpp b/src/voxels/WorldGenerator.cpp
index 8ba1b677..bcf61140 100644
--- a/src/voxels/WorldGenerator.cpp
+++ b/src/voxels/WorldGenerator.cpp
@@ -97,16 +97,16 @@ float calc_height(fnl_state *noise, int real_x, int real_z){
 }
 
 WorldGenerator::WorldGenerator(const Content* content)
-	           : idStone(content->require("base:stone")->id),
-			     idDirt(content->require("base:dirt")->id),
-				 idGrassBlock(content->require("base:grass_block")->id),
-				 idSand(content->require("base:sand")->id),
-				 idWater(content->require("base:water")->id),
-				 idWood(content->require("base:wood")->id),
-				 idLeaves(content->require("base:leaves")->id),
-				 idGrass(content->require("base:grass")->id),
-				 idFlower(content->require("base:flower")->id),
-				 idBedrock(content->require("base:bedrock")->id) {;
+	           : idStone(content->require("base:stone")->rt.id),
+			     idDirt(content->require("base:dirt")->rt.id),
+				 idGrassBlock(content->require("base:grass_block")->rt.id),
+				 idSand(content->require("base:sand")->rt.id),
+				 idWater(content->require("base:water")->rt.id),
+				 idWood(content->require("base:wood")->rt.id),
+				 idLeaves(content->require("base:leaves")->rt.id),
+				 idGrass(content->require("base:grass")->rt.id),
+				 idFlower(content->require("base:flower")->rt.id),
+				 idBedrock(content->require("base:bedrock")->rt.id) {;
 }
 
 int generate_tree(fnl_state *noise, 
diff --git a/src/world/Level.h b/src/world/Level.h
index 6ea9c71b..410a8ae2 100644
--- a/src/world/Level.h
+++ b/src/world/Level.h
@@ -17,10 +17,10 @@ class ChunksStorage;
 class PlayerController;
 
 class Level {
+	const ContentIndices* const contentIds;
 public:
 	World* world;
 	const Content* const content;
-	const ContentIndices* const contentIds;
 	Player* player;
 	Chunks* chunks;
 	ChunksStorage* chunksStorage;