GLOW_BLEND_MODE_ADDITIVE:null = 0
Adds the glow effect to the scene.
GLOW_BLEND_MODE_SCREEN:null = 1
Adds the glow effect to the scene after modifying the glow influence based on the scene value; dark values will be highly influenced by glow and bright values will not be influenced by glow. This approach avoids bright values becoming overly bright from the glow effect.
tonemap_white is used to determine the maximum scene value where the glow should have no influence. When
tonemap_mode is set to
TONE_MAPPER_LINEAR, a value of
1.0 will be used as the maximum scene value.
GLOW_BLEND_MODE_SOFTLIGHT:null = 2
Adds the glow effect to the tonemapped image after modifying the glow influence based on the image value; dark values and bright values will not be influenced by glow and mid-range values will be highly influenced by glow. This approach avoids bright values becoming overly bright from the glow effect. The glow will have the largest influence on image values of
0.25 and will have no influence when applied to image values greater than
1.0.
GLOW_BLEND_MODE_REPLACE:null = 3
Replaces all pixels' color by the glow effect. This can be used to simulate a full-screen blur effect by tweaking the glow parameters to match the original image's brightness or to preview glow configuration in the editor.
GLOW_BLEND_MODE_MIX:null = 4
Mixes the glow image with the scene image. Best used with
glow_bloom to avoid darkening the scene.