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This patch adds a new `falloff_type` ('Inverse Coefficients') for Lamps in
Blender-Internal and GLSL.
The current falloff modes use a formula like this inverse-square one:
`I = E × (D^2 / (D^2 + Q × r^2))`
While such a formula is simple for 3D-artists to use, it's algebraically
cumbersome to work with. Game-designers authoring their own shaders
could benefit much more by having direct control of falloff-coefficients:
`I = E × (1.0 / (coefC + coefL × r + coefQ × r^2))`
In this mode, the `distance` parameter is unused (except for 'Sphere'
mode); instead relying on the designer to mathematically-model the
falloff-behavior.
The UI has been patched like so:
{F153843}
Reviewers: brecht, psy-fi
Reviewed By: psy-fi
Subscribers: brita_, antidote, campbellbarton, psy-fi
Differential Revision: https://developer.blender.org/D1194
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This patch adds a new API which allow us to access light shadow settings from python. The new API can be used to write custom GLSL materials with shadows.
Reviewers: brecht, kupoman, agoose77, panzergame, campbellbarton, moguri, hg1
Reviewed By: agoose77, panzergame, campbellbarton, moguri, hg1
Projects: #game_engine
Differential Revision: https://developer.blender.org/D1690
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