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I have two questiones. first: I want to use a procedural texture in the shader, but i don't know how to complete the engine.render.renderProcedurals() function in the C++ side. For some reason i couldn't use the Unigine Script(All the code was C++,write again use script will be a long time). I think just s few code in the main() method will finish it. Is it Right? Here is what i do, but it was wrong: object : a objectMeshDynamicPtr with vertex and material, the material is the same as example "objectDynamic particles physics shader" while(!engine->isDone()) { Unigine ::Render *myRender = Unigine::Render::get(); MaterialPtr material = object->getMaterialInherit(0); Unigine::Vector<MaterialPtr> materialVector; materialVector.append(material); myRender->renderProcedurals(materialVector); engine->update(); engine->render(); engine->swap(); } second: I drew an object that its shape wil be dynamic changed use the vertex shader programe.To get the correct lighting effects I need to compute normal,tangent,binormal and texcoord for every vertex in the vertex shader(to use the Unigine's lighting shader). I want to ask that is the vertex texcoord necessary? In the Unigine SDK, Without vertex teexcoord you can also compute the normal,tangent,binormal information.which is right? the normal information export in the vertex shader is the world space normal or the normal in the TBN space? To compute TBN information, I need to use post pass with geometry shader(to get 3 vertexes for TBN compute ) , and then export the TBN information use procedural texture. So this is the first question.I don't know if it's the wrong way for TBN compute.