Move tangent space generation to the vertex shaders
Support diffuse parallax when no normal map is present
Don't use diffuse parallax if there's no diffuse map
Generalize normal-to-view conversion
Rewrite parallax
Don't hijack BSShader::NoLighting for BSEffectShader functionality
(Fallout meshes break if you use the actual emissive color as a base color)
Don't use falloff for textureless NoLighting objects
Use falloff flag for BSEffectShader
This more-or-less gets rid of the shadow system's only depencency on FFP
stuff. All that remains is it using OSG cameras, which OSG provides a
uniform-based implementation of, too, which we can trivially migrate to.
This should mean we're not eating any of the ~8 FPP-friendly texture
units, which is good as Morrowind models can use all of those on their
(although they very rarely do), and instead use some of the ~160
shader-only texture image units. This just requires not calling
glEnable(GL_TEXTURE_2D), accomplished by changing
setTextureAttributeAndModes to setTextureAttribute.
Also changes from using glTexGen and its eye plane matrices to pass the
shadow space matrix for each light to explicit uniforms. Thankfully, the
maths was a simple combination of the valid region matrix and eye plane
matrix maths.
As of this commit, I believe this kills shadows in one eye for stereo
rendering.
remove debug draw shader, now that debug and debugdraw serve the same function
remove debug draw code from actors to clean
replaced int uniforms with bool for better readability
clang format
cleanup, remove unused func, and mistake whitespace
fix namespace
added more colors
fixed missing whitespace
renamed files
roundabout way to change case with windows noticing
fixed type
fix filename in cmakelist.txt
ported shader and c++ code so glsl 120 can be used instead of 330
new debug shader and old one are almost unified
for some reason, even though I get no compilation issue, old debug draws don't work, only the new one implemented by this MR
remove useless const cast
changes when the buffers are reset -> at the end of the draw, because that's when we are certain the data isn't needed anymore
removed useless variable
fixed typo
include osg::vec3 instead of osg vec3f
compile linux
compile ?
applied clang format to the new files
