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Passed light direction instead of light object into computeHazeColorKeyLightAttenuation.

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This commit is contained in:
Nissim Hadar 2017-12-14 16:23:14 -08:00
parent 026b19d770
commit c352d5fc23
2 changed files with 2 additions and 7 deletions
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6
libraries/render-utils/src/DeferredGlobalLight.slh
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@ -121,10 +121,6 @@ vec3 evalSkyboxGlobalColor(mat4 invViewMat, float shadowAttenuation, float obscu
color += ambientDiffuse;
color += ambientSpecular;
// Directional
// Get directional light (used by both directional light and haze attenuation)
Light directionalLight = getLight();
vec3 directionalDiffuse;
vec3 directionalSpecular;
evalLightingDirectional(directionalDiffuse, directionalSpecular, lightDirection, lightIrradiance, fragEyeDir, fragNormal, roughness, metallic, fresnel, albedo, shadowAttenuation
@ -137,7 +133,7 @@ vec3 evalSkyboxGlobalColor(mat4 invViewMat, float shadowAttenuation, float obscu
// Attenuate the light if haze effect selected
if ((hazeParams.hazeMode & HAZE_MODE_IS_KEYLIGHT_ATTENUATED) == HAZE_MODE_IS_KEYLIGHT_ATTENUATED) {
color = computeHazeColorKeyLightAttenuation(color, directionalLight, position);
color = computeHazeColorKeyLightAttenuation(color, lightDirection, position);
}
return color;

3
libraries/render-utils/src/Haze.slh
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@ -50,13 +50,12 @@ layout(std140) uniform hazeBuffer {
//
// General algorithm taken from http://www.iquilezles.org/www/articles/fog/fog.htm, with permission
//
vec3 computeHazeColorKeyLightAttenuation(vec3 color, Light directionalLight, vec3 worldFragPos) {
vec3 computeHazeColorKeyLightAttenuation(vec3 color, vec3 lightDirection, vec3 worldFragPos) {
// Directional light attenuation is simulated by assuming the light source is at a fixed height above the
// fragment. This height is where the haze density is reduced by 95% from the haze at the fragment's height
//
// The distance is computed from the height and the directional light orientation
// The distance is limited to height * 1,000, which gives an angle of ~0.057 degrees
vec3 lightDirection = getLightDirection(directionalLight);
// Height at which haze density is reduced by 95% (default set to 2000.0 for safety ,this should never happen)
float height_95p = 2000.0;