Learning more about 3D
Hi
I'm trying to teach myself more about 3d in max, mainly OpenGL, so I'm attempting to copy techniques I've seen. The first is this: http://tasarix.com/v10-pages/7pwrs.html. To me it looks like it's drawn from the base up gradually, it changes colour, grows in size and orbit as it goes. I can do the last three things but it's the trail or line it leaves that has me stuck. I thought maybe a line with points being added to a sketch but a line is flat, it doesn't have volume, any ideas?
Second question, can't find a visual to explain this, but it's a texture effect I've seen somewhere where the texture on a 3d shape isn't wrapped around the shape but is flat on it as if the shape is a window through which the texture is seen. Pretty sure this is easy, just can't remember how to do it.
Thanks in advance
Garrett
This is what I've come up since my earlier post. I'm guessing it's not the best of ideas because it relies on not reseting the sketch so how would I effectively do what this does but correctly (in the gl sense of not losing frame rate/overrunning the buffer/crashing)? Thanks in advance.
Garrett
for the texture, try the @texmap attribute maybe?
Hi, did you make some attempt to simulate qsound effect whit Max????
>for the texture, try the @texmap attribute maybe?
Hi seejayjames
Yes progressed a little on the second part since I posted this thanks to Joshua's post here: https://cycling74.com/forums/re-adding-tex_map-into-gl_commands-routine
This:
glenable texture_gen_s,
glenable texture_gen_t,
gltexgeni s, texture_gen_mode, eye_linear,
gltexgeni t, texture_gen_mode, eye_linear,
gltexgenfv s, eye_plane, ob3d->tex_plane_s,
gltexgenfv t, eye_plane, ob3d->tex_plane_t,
with textmap turned off is starting to do what I want but the size of the texture is smaller than my object so I need to scale it up but don't know how. I saw mention of a scale_x, scale_y in a post somewhere but don't know how this goes into the gl. Any ideas? Thanks.
Garrett