LÖVE

SiENcE wrote:I'm curious about it.

--Make sure to check for mtl file
		if string.sub(RAW_FILE[a], 1, 6) == "mtllib" then
			local RAW_MTL = {}
			for line in love.filesystem.lines(string.sub(RAW_FILE[a], 8)) do
				table.insert(RAW_MTL, line)
			end
			
			--Since there was a material, let's index it
			for c = 1, #RAW_MTL do
				
				--If a new material is being declared
				if string.sub(RAW_MTL[a], 1, 6) == "newmtl" then
					MATER[#MATER+1] = {}
					MATER[#MATER].ID = string.sub(RAW_MTL[a], 8)
				end
				
				if string.sub(RAW_MTL[a], 1, 2) == "Ka" then
					local pointer = string.find(RAW_MTL[a], " ", 4)
					local color1 = string.sub(RAW_MTL[a], 4, pointer - 1)
					newPointer = string.sub(RAW_MTL[a], " ", pointer)
					local color2 = string.sub(RAW_MTL[a], pointer, newPointer - 1)
					pointer = string.sub(RAW_MTL[a], " ", newPointer)
					local color3 = string.sub(RAW_MTL[a], newPointer, pointer - 1)
					MATER[#MATER].AMB = {color1, color2, color3}
				end
				
				if string.sub(RAW_MTL[a], 1, 2) == "Kd" then
					local pointer = string.find(RAW_MTL[a], " ", 4)
					local color1 = string.sub(RAW_MTL[a], 4, pointer - 1)
					newPointer = string.sub(RAW_MTL[a], " ", pointer)
					local color2 = string.sub(RAW_MTL[a], pointer, newPointer - 1)
					pointer = string.sub(RAW_MTL[a], " ", newPointer)
					local color3 = string.sub(RAW_MTL[a], newPointer, pointer - 1)
					MATER[#MATER].DIF = {color1, color2, color3}
				end
			end
		end
		--Done indexing Materials

newmtl Material2
Ka 0.000000 0.000000 0.000000
Kd 1.000000 1.000000 0.000000
Ks 0.330000 0.330000 0.330000

Nixola wrote:Could you include a little .love demo with every update?

Nixola wrote:Thanks
EDIT: It's getting nicer, I think. I like LÖVE 3D libraries
P.S: What's wrong with including a .love? It's only a small file which you already need to have when you tell us there's an update

10$man wrote:

Roland_Yonaba wrote:

substitute541 wrote:LIGHTING IS WORKING PROPERLY! Check the Love2D Wiki page called "Love3D.lua" for more info

First, you should give a link to that wiki page.
Second, consider updating the OP with the newest links.
Third, links on the wiki page (for both the lib and the demo) are not pointing properly where they should. Consider fixing them.
Fourth, why not set a Git/Bitbucket repo, it'll be easy to track your progresses (IMHO).
Fifth, great job.

This topic is about my Library...
That's something for his I guess.

I've come up with how I want to do lighting, but I won't be implementing it until probably... 2 more updates.
I'm working on frustum culling at the moment.

substitute541 wrote: You can use my calculations if you like. It's just simple vector (oh-no) calculus. The concept is this. Find the normal vector of a surface(the one thats pointing straight out of your poly), find the cross product of the 2 vectors that make your poly(specifically, a triangle), find the dot product of the normal vector and the light vector(coordinates), find the magnitude of the normal vector and light vector, and find the angle at which the light is striking in the surface of the poly.
.
.
.
Whew, that's alot.

Find the normal vector of a surface(the one thats pointing straight out of your poly), find the cross product of the 2 vectors

that make your poly(specifically, a triangle)

10$man wrote:

substitute541 wrote: You can use my calculations if you like. It's just simple vector (oh-no) calculus. The concept is this. Find the normal vector of a surface(the one thats pointing straight out of your poly), find the cross product of the 2 vectors that make your poly(specifically, a triangle), find the dot product of the normal vector and the light vector(coordinates), find the magnitude of the normal vector and light vector, and find the angle at which the light is striking in the surface of the poly.
.
.
.
Whew, that's alot.

Find the normal vector of a surface(the one thats pointing straight out of your poly), find the cross product of the 2 vectors

What two vectors?
That's only one...
Also, when I load .obj files, I store all the normals and UV coords.

that make your poly(specifically, a triangle)

Again, since I am using .OBJ files, unless the program exports triangles, I often have faces with 4 or 5 sides.


I appreciate your offer to help, but it looks like I'l need to think this one out later.
Also, how did you do lighting effects on the materials of your faces?
Did you just make a darker color for the farther away they are?
Is there any polygonGradient(color1, color2) function?
(Or for that matter, any way to set pixels on a loaded bitmap?)

substitute541 wrote:... The calculations that I said above...

Edit : Just look at the Light3D code.