DrawImage and VBO
BlitzMax Forums/BlitzMax Beginners Area/DrawImage and VBO
| ||
| Hi all, I'm new to BlitzMax but not new to OpenGL and game dev in general. I found Blitzmax to be very interesting as well as powerfull but I am wonering, does Max2D's DrawImage uses some sort of VBO or Vertex Array to optimize rendering? or does it use the fixed routines (glBeing/glEnd) to do it's stuff. I am asking this because I want the get the best performance when rendering stuff whitout reinventing the wheel in BlitzMax. Now, If DrawImage is just fine, can I still use GL shaders and other openGL instructions? Thanks |
| ||
| DrawImage uses glVertex2f if I recall correctly. There is frequent mention that at some point someone wrote a VBO-based drawing module, but nobody seems to know who. |
| ||
| I've made myself drawing module, VBO based, making heavy use of ogl3.3 and glsl3.3, I even had deffered lighting in it :D. I will post it on forum if I find working copy if you want. EDIT: Found some old picture of my test with deffered lighting. As I remember I could go up to few thousand tiny lights with normal mapping and stuff. They were image based, point lights (I had prototype of image based spread but it didn't work).  |
| ||
| Wow, posting that in here would be really awesome. I could learn a lot about BlitzMax from that. If you are ok about that, then please post it It would be really appreciated! Thank you both for your answers |
| ||
| Good news is I found main module. Bad news is that it's missing few side modules and it doesn't work in it's current state. I will try to make it work but it might take a day or 2. |
| ||
| http://www.mediafire.com/?e5sw9ct99pgza3x You will need to drop opengl.mod and glew.mod into pub (it's updated version, to let you use ogl 3.3/4.2) I couldn't find module responsible for vertex/triangles, so it's sadly broken. But all ogl, etc. is there. |
| ||
| Awesome!! Thank you very much Polan, Im gonna check it out as soon as I get home. |
| ||
| Excellent work. it's got problems with missing GL_TRUE on compile of the new mods Plus on mac, link errors on compiled programs. |
| ||
Adam did you updated your pub.mod/opengl.mod and pub.mod/glew.mod? If yes, open your opengl.mod, opengl.bmx, add this anywhereConst GL_TRUE=1 And it won't compile because there is 1 module missing, which I couldn't find anywhere :/. I left this project in middle of transformation/cleanup, so it's sadly a bit broken. I want to remake it soon. |
| ||
| ok, no probs. I'm just seeing if i can convert things over :) |
   |