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Implement Physical Light Units as an optional setting.

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This allows light sources to be specified in physical light units in addition to the regular energy multiplier. In order to avoid loss of precision at high values, brightness values are premultiplied by an exposure normalization value.

In support of Physical Light Units this PR also renames CameraEffects to CameraAttributes.
This commit is contained in:
clayjohn 2022-07-31 16:20:24 -07:00
parent 736632ee7e
commit 385ee5c70b
131 changed files with 2692 additions and 1283 deletions
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4
servers/rendering/renderer_rd/shaders/effects/copy.glsl
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@ -31,7 +31,7 @@ layout(push_constant, std430) uniform Params {
float glow_exposure;
float glow_white;
float glow_luminance_cap;
float glow_auto_exposure_grey;
float glow_auto_exposure_scale;
// DOF.
float camera_z_far;
float camera_z_near;
@ -185,7 +185,7 @@ void main() {
if (bool(params.flags & FLAG_GLOW_FIRST_PASS)) {
#ifdef GLOW_USE_AUTO_EXPOSURE
color /= texelFetch(source_auto_exposure, ivec2(0, 0), 0).r / params.glow_auto_exposure_grey;
color /= texelFetch(source_auto_exposure, ivec2(0, 0), 0).r / params.glow_auto_exposure_scale;
#endif
color *= params.glow_exposure;