glsl - OpenGL Shaders - Structuring blocks of data of similar types -


i'm having bit of structural problem shader of mine. want able handle multiple lights of potentionally different types, i'm unsure best way of implementing be. far i've been using uniform blocks:

layout (std140) uniform lightsourceblock {     int type;     vec3 position;     vec4 color;      // spotlights / point lights     float dist;      // spotlights     vec3 direction;     float cutoffouter;     float cutoffinner;     float attenuation; } lightsources[12];

it works, there several problems this:

  • a light can 1 of 3 types (spotlight, point light, directional light), require different attributes (which aren't neccessarily required types)

  • every light needs sampler2dshadow (samplercubeshadow point lights), can't used in uniform blocks.

the way i'm doing works, surely there must better way of handling this? how done?


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