Commit Graph

7 Commits

Author SHA1 Message Date
Alex Szpakowski 5de43a7207 The Vertex struct is now recognized as POD by C++, also fixed the name to be consistent with other love structs 2013-09-24 11:09:18 -03:00
Alex Szpakowski 45de33edb8 Removed Geometry:flip (resolves issue #670) 2013-07-29 05:50:08 -03:00
Alex Szpakowski 454ba9d968 love.graphics.newGeometry now takes an optional draw mode argument ("fan", "strip", or "triangles".) "fan" is the default.
This allows for more diverse and complex Geometries, provided the lover understands how to use each mode. See http://escience.anu.edu.au/lecture/cg/surfaceModeling/image/surfaceModeling015.png

Changed love.graphics.newGeometry to optionally accept vertices as individual arguments instead of just a table of vertices (resolves issue #651).
Changed Geometry:setVertex to optionally accept a table containing x,y,u,v,r,g,b,a instead of just individual arguments.

Added Geometry:set/getDrawMode.

Removed the convex-check in love.graphics.newGeometry (all geometry modes have at least some form of concavity support, lovers can do their own check if needed with love.math.isConvex.)

Added an optional "vertex map" table argument to love.graphics.newGeometry (AKA a vertex index array / element array in graphics programming lingo.)
This allows lovers to change the order in which the vertices are used when drawing, or re-use a single vertex multiple times for different parts of the Geometry.
This is especially useful in the "triangles" Geometry draw mode. The vertex map lets you draw very complex (and concave) shapes / meshes without duplicating vertex data.

Added Geometry:set/getVertexMap.
2013-07-10 15:34:10 -03:00
Alex Szpakowski 8d7e0b5629 Time-travelling license text 2013-06-22 03:14:15 -03:00
vrld e9d0204cdc Disallow concave shapes as geometry. 2013-05-12 13:01:05 +02:00
Alex Szpakowski 3b05ec0635 Geometries now automatically use per-vertex colors when drawing if any vertex has a custom color set, otherwise the constant color is used.
Still not a perfect solution, but it works better than before
2013-04-23 23:25:45 -07:00
vrld 71317c4359 Add Geometries (replaces Quads).
A Geometry is a collection of vertices describing a non self-intersecting
(simple) polygon. In addition to screen coordinates, the vertices have
attributes for texture coordinates (s,t) and color (r,g,b,a).

It can be used as a quad, to display distorted images, or anything in between.

Added:
^^^^^^

-- geometry from table, where table has the format:
-- info = {
-- {x,y, s,t, [r = 255, g = 255, b = 255, a = 255]}
-- {x,y, s,t, [r = 255, g = 255, b = 255, a = 255]}
-- ...
-- }
geom = love.graphics.newGeometry(info)

-- convenience wrapper for quads (same as before)
geom = love.graphics.newQuad(x,y, w,h, sw,sh)

-- retrieve vertex i (1-indexed)
x,y,s,t,r,g,b,a = geom:getVertex(i)

-- set vertex i (1-indexed)
geom:setVertex(i, x,y, s,t, [r,g,b,a])

-- flip geometry
geom:flip(x, y)


Renamed:
^^^^^^^^

love.graphics.drawq() -> love.graphics.drawg()


Removed:
^^^^^^^^

quad:setViewport()
quad:getViewport()
2013-04-21 18:53:13 +02:00