-
as seen on Stack Overflow
- Search for 'Stack Overflow'
I am currently writing the positions of my geometry to the RGB channels of gl_FragColor and I would like to write 1.0 to the alpha channel if the fragment is part of geometry, and 0.0 if its empty.
Is there a simple way to tell if a fragment is geometry or not? Maybe through gl_FragCoord.z?
thanks
>>> More
-
as seen on Stack Overflow
- Search for 'Stack Overflow'
I was having problems while intersecting two geometries, getting a TopologyException probably due to a rounding error during the operation, then I read this fix and tried a buffer(0) on both input geometries, but still without success. Then I tried geo.buffer(1).buffer(-1) and it worked.
Will these…
>>> More
-
as seen on Stack Overflow
- Search for 'Stack Overflow'
I have a loop where I create a multiple Mesh with different geometry, because each mesh has one texture:
....
var geoCube = new THREE.CubeGeometry(voxelSize, voxelSize, voxelSize);
var geometry = new THREE.Geometry();
for( var i = 0; i < voxels.length; i++ ){
var voxel = voxels[i];
var object;
…
>>> More
-
as seen on Stack Overflow
- Search for 'Stack Overflow'
Trying to debug some linker errors, I turned on /VERBOSE and I'm trying to make sense of the output. It occurs to me that I really don't know how to read it.
For example:
1>Compiling version info
1>Linking...
1>Starting pass 1
1>Processed /DEFAULTLIB:mfc80.lib
1>Processed /DEFAULTLIB:mfcs80…
>>> More
-
as seen on Game Development
- Search for 'Game Development'
I'm trying to learn opengl. I did some code for building a rectangular prism. I don't want to draw back faces so I used glCullFace(GL_BACK), glEnable(GL_CULL_FACE);. But I keep getting back faces also when viewing from front and also sometimes when rotating sides are vanishing. Can someone point me…
>>> More
-
as seen on Stack Overflow
- Search for 'Stack Overflow'
I have a small contest problem in which is given a set of points, in 2D, that form a triangle. This triangle may be subject to an arbitrary rotation, may be subject to an arbitrary translation (both in the 2D plane) and may be subject to a reflection on a mirror, but its dimensions were kept unchanged…
>>> More
-
as seen on Game Development
- Search for 'Game Development'
I want to have an object follow around my mouse on the screen in OpenGL. (I am also using GLEW, GLFW, and GLM). The best idea I've come up with is:
Get the coordinates within the window with glfwGetCursorPos.
The window was created with
window = glfwCreateWindow( 1024, 768, "Test", NULL, NULL);
and…
>>> More
-
as seen on Game Development
- Search for 'Game Development'
I have code for circle-circle intersection. But I need to expand it to 3-D.
How do I calculate:
Radius and center of the intersection circle of two spheres
Points of the intersection of a sphere and a circle?
Given two spheres (sc0,sr0) and (sc1,sr1), I need to calculate a circle of intersection…
>>> More
-
as seen on Game Development
- Search for 'Game Development'
In this picture (a perspective projection of an icosahedron), the scanline (red) intersects that vertex at the top. In an icosahedron each edge belongs to two triangles. From edge a, only one triangle is visible, the other one is in the back. Same for edge d. Also, in order to determine what color…
>>> More
-
as seen on Game Development
- Search for 'Game Development'
I'm trying to make a software z-buffer implementation, however, after I generate the z-buffer and proceed with the vertex culling, I get pretty severe discrepancies between the vertex depth and the depth of the buffer at their projected coordinates on the screen (i.e. zbuffer[v.xp][v.yp] != v.z, where…
>>> More
