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Results tagged with opengl
Search options not deleted user 39360
OpenGL is a graphics standard and API which targets the desktop and workstation markets. It is designed to be easy to accelerate with dedicated computer hardware, and hence most implementations give greatly improved performance over traditional software rendering. Currently, OpenGL is used for applications like CAD software and computer games. It is also cross-platform. The OpenGL standard is controlled by the Khronos group, which also controls OpenGL ES.
2 votes
How do I efficiently use 16 bit texture coordinates?
the easy option to integrate is to store 2 texture coordinates into one float using the int part and the decimal part: //c++ code: float packCoord(const vec2 & tc) { return floorf(tc.x * 10 …
- 819
0 votes
Accepted
Models are not rendered correctly. OpenGL
Changing mProjection * mView * mModel to mModel * mView * mProjection should solve the problem in this case but it's not a general rule. Here is why: Some math facts first, for matrix multiplication …
- 819
0 votes
How do I calculate NDC coordinates in a fragment shader?
move the projection multiplication in the vertex shader: vec4 view_pos = P * V * M * vec4(world_position.xyz, 1.0); and in fragment shader: vec4 clip_pos = view_pos; vec2 ndc_xy = clip_pos.xy / cl …
- 819
2 votes
Providing texture coordinates and using indexed drawing at the same time
There is not ideal way of doing it, this is a common problem with meshes. To solve this there, are two different approaches: Considering that you have a vertex that has to be used with two different t …
- 819