private static void SetPointLightShaderGlobals(IRenderPass2D pass, CommandBuffer cmd, Light2D light)
{
// This is used for the lookup texture
GetScaledLightInvMatrix(light, out var lightInverseMatrix);
var innerRadius = GetNormalizedInnerRadius(light);
var innerAngle = GetNormalizedAngle(light.pointLightInnerAngle);
var outerAngle = GetNormalizedAngle(light.pointLightOuterAngle);
var innerRadiusMult = 1 / (1 - innerRadius);
cmd.SetGlobalVector(k_LightPositionID, light.transform.position);
cmd.SetGlobalMatrix(k_LightInvMatrixID, lightInverseMatrix);
cmd.SetGlobalFloat(k_InnerRadiusMultID, innerRadiusMult);
cmd.SetGlobalFloat(k_OuterAngleID, outerAngle);
cmd.SetGlobalFloat(k_InnerAngleMultID, 1 / (outerAngle - innerAngle));
cmd.SetGlobalTexture(k_LightLookupID, Light2DLookupTexture.GetLightLookupTexture());
cmd.SetGlobalTexture(k_FalloffLookupID, pass.rendererData.fallOffLookup);
cmd.SetGlobalFloat(k_FalloffIntensityID, light.falloffIntensity);
cmd.SetGlobalFloat(k_IsFullSpotlightID, innerAngle == 1 ? 1.0f : 0.0f);
cmd.SetGlobalFloat(k_LightZDistanceID, light.normalMapDistance);
if (light.lightCookieSprite != null && light.lightCookieSprite.texture != null)
{
cmd.SetGlobalTexture(k_PointLightCookieTexID, light.lightCookieSprite.texture);
}
}
static Texture GetFalloffLookupTexture()
{
if (s_FalloffLookupTexture == null)
{
s_FalloffLookupTexture = Light2DLookupTexture.CreateFalloffLookupTexture();
}
return(s_FalloffLookupTexture);
}
static Texture GetLightLookupTexture()
{
if (s_LightLookupTexture == null)
{
s_LightLookupTexture = Light2DLookupTexture.CreatePointLightLookupTexture();
}
return(s_LightLookupTexture);
}