These two functions expect a vector of the same size as the
matrix's storage vectors (float4 for a mat4f for instance) which
has two major issues:
- The vector must end with 1 for homogeneous coordinates to work
- Passing a single scalar (mat4f::scale(0.5)) creates a matrix
whose diagonal is set to that scalar, thus breaking homogeneous
coordinates
With this change scale and translate expect a vector who dimensionality
is 1 less that of the matrix's underlying storage vectors. i.e. a float3
for mat4f.
* Add missing method to query the type of a light
* IcoSphere now generates front facing triangles
* Add a fairly generic sphere object to use in samples
it provides an ico sphere with normal, and reuses
the same vertex/index buffer for each new instance.
Each instance can have its own material, size and
position.
currently it’s not possible to change the # of
subdivisions.
* FilamentApp now provides a “default” pbr material
this makes it easier to create renderables for
testing.
* clean-up lightbulb and add spheres for each light
lightbulb now has less hardcoded things and it
spawns a small sphere for each light.
computeLightTree() takes a list of light as
a bitfield and produces a depth-first
binary tree array that can be used to efficiently
check which lights volumes contain a given z
coordinate in screen space.
Currently computeLightTree() produces the array
locally on the stack, which isn’t useful, but
before we can make use of it, a lot of other
things have to happen.
