All Questions
6 questions
0
votes
1
answer
328
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How to achieve no gaps between triangles in software renderer like in Quake?
I've heard alot that I need to use fixed-point math, top-left rule, etc. to eliminate gaps between triangles but the thing is how did Quake not have any gaps, did it? I've seen Quake's math file and ...
1
vote
1
answer
1k
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How can I render a font in C with OpenGL? [closed]
What I tried:
I was testing some things in order to render text with stb_truetype.h and OpenGL in C.
I took as a reference the example that appears here.
Basically, this example, loads a .ttf file and ...
- 111
2
votes
1
answer
2k
views
SDL_RenderPresent is writing over the previous frame
Whenever I call SDL_RenderPresent, the previous frame is replaced with black before the new frame is displayed. It's almost like when I call ...
- 159
0
votes
1
answer
390
views
How to map intensity from dot product to float RGB from 0 to 1?
I'm getting the dot product of the surface normal and light position. The weird thing is the dot product is larger than 1.
Also, I want to map that intensity from 0->1 to Float RGB from 0->1. Here is ...
- 243
4
votes
1
answer
2k
views
Fog with Blend in OpenGL
I want to add fog in my scene which contain transparent textures made by Blend ,
when i enable the fog the transparent textures appear white From a distance but when i disable it the textures ...
- 191
3
votes
1
answer
131
views
connecting multiple anti-aliased lines together
I implemented/copied the wu line algorithm from pseudo-code on wiki-pedia and other places.
When drawing a sine wave it breaks down at the point where the line changes from y dominant to x dominant ...
- 161