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Josh

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    Release Notes

    in General Discussion

    Posted

    0.9.6

    Initial implementation of the new foliage system is available. To use it, create a terrain, select the foliage tool, and add a new layer.

    • Sync your project to get the new mesh layer shaders.
    • Slope and height constraints currently have no effect.
    • Mesh layers are not yet saved in maps.
    • Collision and ray casting (picking) are not yet implemented.
    • Imposters are not yet implemented.
    • LOD and multiple variations within a layer (sublayers) are supported.
    • Like 1

    Release Notes

    in General Discussion

    Posted

    • Replaced mouse tool menu items and hotkeys with a single menu item called "Next Tool" that can be activated with Shift + Tab.
    • Vertex mouse tool will now make the selected vertex or edge snap to the nearest grid point.
    • Terrain creation properties changed a little bit.
    • Default terrain scale now set to 1.28, for easy brush alignment.
    • Like 2

    Release Notes

    in General Discussion

    Posted

    • Fixed vertex and face tools, which could get weird results that did not align to the current mouse position.
    • Vertex and mouse tools now display the up/down mouse cursor when Alt key is pressed.

    For now, I will keep the trenchbroom-style controls for these two tools.

    Resize a cubemap

    in Programming

    Posted

    Some code I used to resize a cubemap. I think the mipmaps might not be correct, but that's okay: Pasting here in case I need it again 

        auto plug = LoadPlugin("Plugins/ISPCTexComp.dll");

    auto tex = LoadTexture(GetPath(PATH_DESKTOP) + "/diffuse.dds", LOAD_MIPCHAIN);
    auto mipchain = tex->mipchain;
    std::vector<shared_ptr<Pixmap> > chain2;
    for (auto p : mipchain)
    {
        
        {
            p = p->Convert(TEXTURE_RGBA16);
            p = p->Resize(256, 256);
            p = p->Convert(TEXTURE_BC6H);
            chain2.push_back(p);
        }
    }
    SaveTexture(GetPath(PATH_DESKTOP) + "/thumbnail_diffuse.dds", TEXTURE_CUBE, chain2, 6);
    return 0;

     

    Polygon Reduction library

    in Addon Development

    Posted

    Here is some code that uses it, but I just can't seem to get it to work right. I don't think there is an error in my code.

    I had to fix this file for C++17. Maybe that is causing it? I do not understand these functions:
    misc.h 

    	int VertMap(const std::vector<int>& collapse_map, int a, int mx) {
		if (mx <= 0) return 0;
		while (a >= mx)
		{
			a = collapse_map[a];
		}
		return a;
	}
    					std::vector<linalg::aliases::float3> vert;
					std::vector<tridata> tri;
					std::vector<int> collapse_map;
					std::vector<int> permutation;
					tridata t;

					for (const auto& v : mesh->vertices)
					{
						vert.push_back(linalg::aliases::float3(v.position.x, v.position.y, v.position.z));
					}

					for (int n = 0; n < mesh->CountPrimitives(); ++n)
					{
						t.v[0] = mesh->GetPrimitiveVertex(n, 0);
						t.v[1] = mesh->GetPrimitiveVertex(n, 1);
						t.v[2] = mesh->GetPrimitiveVertex(n, 2);
						tri.push_back(t);
					}

					//-----------------------------
					// Reduce the mesh
					//-----------------------------

					ProgressiveMesh(vert, tri, collapse_map, permutation);

					//-----------------------------
					// PermuteVertices
					//-----------------------------

					// rearrange the vertex Array 
					std::vector<float3> temp_Array;
					unsigned int i;
					assert(permutation.size() == vert.size());
					for (i = 0; i < vert.size(); i++) {
						temp_Array.push_back(vert[i]);
					}
					for (i = 0; i < vert.size(); i++) {
						vert[permutation[i]] = temp_Array[i];
					}
					// update the changes in the entries in the triangle Array
					for (i = 0; i < tri.size(); i++) {
						for (int j = 0; j < 3; j++) {
							tri[i].v[j] = permutation[tri[i].v[j]];
						}
					}

					//-----------------------------
					// Build new mesh
					//-----------------------------

					model->Clear();
					mesh->extra = nullptr;
					mesh = model->AddMesh();

					std::vector<int> newvertex(vert.size());
					std::fill(newvertex.begin(), newvertex.end(), -1);

					//Add triangles
					int a, b, c, p0, p1, p2;
					int render_num = vert.size() * 0.5;
					for (unsigned int i = 0; i < tri.size(); i++)
					{
						p0 = VertMap(collapse_map, tri[i].v[0], render_num);
						p1 = VertMap(collapse_map, tri[i].v[1], render_num);
						p2 = VertMap(collapse_map, tri[i].v[2], render_num);
						if (p0 == p1 or p1 == p2 or p2 == p0) continue;
						a = newvertex[p0];
						if (a == -1)
						{
							a = mesh->AddVertex(vert[p0].x, vert[p0].y, vert[p0].z);
							newvertex[p0] = a;
						}
						b = newvertex[p1];
						if (b == -1)
						{
							b = mesh->AddVertex(vert[p1].x, vert[p1].y, vert[p1].z);
							newvertex[p1] = b;
						}
						c = newvertex[p2];
						if (c == -1)
						{
							c = mesh->AddVertex(vert[p2].x, vert[p2].y, vert[p2].z);
							newvertex[p2] = c;
						}
						//int a = mesh->AddVertex(vert[p0].x, vert[p0].y, vert[p0].z);
						//int b = mesh->AddVertex(vert[p1].x, vert[p1].y, vert[p1].z);
						//int c = mesh->AddVertex(vert[p2].x, vert[p2].y, vert[p2].z);
						mesh->AddPrimitive(a, b, c);
					}

					mesh->UpdateBounds();
					model->UpdateBounds();

     

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