i have created an interface and implemented ICP algorithm for the registration of a comet models but now i have to add the possibility for the researchers to paint with a brush, areas on the mesh and get vertices under it to use in my ICP algorithm. first how to paint on the display widget ..
The following c++ code snippet show how to open a depth map from a file and transform it into a 3D point cloud: FILE* inFile; //read the file fopen_s(&inFile,"depth.txt", "rb"); fread(d, sizeof(UINT16), nVertices, inFile); fclose(inFile); for(int i=0 ; i < nVertices ; i++) { int r_i = i / (int)n_c; int c_i = i % ..
I can operate the screen going right, left, up, and down. While doing this my glTranslate is -> glTranslate(x,y,z) accordingly changing when I press buttons. However, I want to draw 3d cone top of a cylinder (like a rocket shape). when I do this they are being intertwined. What can I do about this? (I ..
i have an object i am trying to apply some transformation, something like an airplane, if i translate the object it translate normaly but if i try rotating it at its current position after translating it, it still rotate around the initial origin. i dont really know if the order of my transformation matrix is ..
Until now, I’ve been handling translucency by sorting my translucent triangles back to front. This works very well for quads, but I’d like to incorporate translucency in my models now. I’ve thought of separating the translucent tris out and sorting them in the same way as my quads. Sorting by their centroids, then streaming the ..
I am writing low level 2D/3D rendering engine as a part of display driver for MCU platform in C++ and I hit a wall with perspective projection in 3D and face culling. Lets assume my 3D engine is using M,V,P matrices (in the same manner as Model,View and Projection matrices in OpenGL fixed pipeline). The ..
I have a 3d plane at the world origin. How do I translate it so that it appears on the upper right corner of the canvas? Source: Windows Que..
I am trying to orient a 3d object at the world origin such that it doesn’t change its position wrt camera when I move the camera OR change its field of view. I tried doing this Object Transform = Inverse(CameraProjectionMatrix) How do I undo the perspective divide because when I change the fov, the object ..
I have a vec3 min and vec3 max, accessing the individual components using [], like min[0] for x. Now I want to build a list of vec3’s, where every two elements represents a line. How can I loop over the min/max so the list contains the lines for all outer edges of the AABB (basically ..
I am trying to a place a plane at the corner of my canvas(my app is in C++). My approach was to invert the camera projection matrix and then multiply it with the w and translate it to top right. So it looks like – origin(0.0, 0.0, 0.0, 1.0f); projViewInverse = Camera.projViewMatrix().inverse(); projectionMatrix = Camera.projViewMatrix(); ..
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