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Eevee: Optimisation: Bypass light power calculation when not needed 

This makes quite a big improvement in my case 1.8ms vs 2.3ms for a single
area light.
This will make even more difference with light attenuation.
This commit is contained in:
Clément Foucault 2018-11-14 16:03:24 +01:00
parent d0b0e7efed
commit d082b18d87
1 changed files with 6 additions and 1 deletions
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7
source/blender/draw/engines/eevee/shaders/lit_surface_frag.glsl
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@ -215,7 +215,12 @@ void CLOSURE_NAME(
l_vector.xyz = ld.l_position - worldPosition;
l_vector.w = length(l_vector.xyz);
vec3 l_color_vis = ld.l_color * light_visibility(ld, worldPosition, viewPosition, viewNormal, l_vector);
float l_vis = light_visibility(ld, worldPosition, viewPosition, viewNormal, l_vector);
if (l_vis < 1e-8)
continue;
vec3 l_color_vis = ld.l_color * l_vis;
#ifdef CLOSURE_DIFFUSE
out_diff += l_color_vis * light_diffuse(ld, N, V, l_vector);