badspot y u no increase render distance of lights???

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beachbum111111:

--- Quote from: Port on July 26, 2013, 01:34:06 PM ---it isn't an engine limitation

--- End quote ---

So then why can't we see more then 7 or 8?

Port:

--- Quote from: beachbum111111 on July 26, 2013, 02:05:38 PM ---So then why can't we see more then 7 or 8?

--- End quote ---

because of this code:

--- Code: ---// Point lighting
uniform vec4 pointLightPos0;
uniform vec4 pointLightColor0;
uniform float pointLightRadius0;

uniform vec4 pointLightPos1;
uniform vec4 pointLightColor1;
uniform float pointLightRadius1;

uniform vec4 pointLightPos2;
uniform vec4 pointLightColor2;
uniform float pointLightRadius2;

uniform vec4 pointLightPos3;
uniform vec4 pointLightColor3;
uniform float pointLightRadius3;

uniform vec4 pointLightPos4;
uniform vec4 pointLightColor4;
uniform float pointLightRadius4;

uniform vec4 pointLightPos5;
uniform vec4 pointLightColor5;
uniform float pointLightRadius5;

uniform vec4 pointLightPos6;
uniform vec4 pointLightColor6;
uniform float pointLightRadius6;

uniform vec4 pointLightPos7;
uniform vec4 pointLightColor7;
uniform float pointLightRadius7;

vec4 accumulatePointLights()
{
vec4 pointLightTotal = vec4(0.0f, 0.0f, 0.0f, 0.0f);
vec3 lightDelta = vec3(0.0f, 0.0f, 0.0f);
float lightDot = 0.0f;
float ratio = 0.0f;

// Calculate effects of the 8 point lights.

lightDelta = worldPos.xyz - pointLightPos0.xyz;
lightDot = max(dot(-normalize(lightDelta), worldNormal), 0.0f);
ratio = 1.0f - (length(lightDelta) / pointLightRadius0);
ratio = ratio * ratio * ratio * 0.4f;
ratio = max(ratio, 0.0f);
pointLightTotal.xyz += ratio * lightDot * pointLightColor0.xyz;

lightDelta = worldPos.xyz - pointLightPos1.xyz;
lightDot = max(dot(-normalize(lightDelta), worldNormal), 0.0f);
ratio = 1.0f - (length(lightDelta) / pointLightRadius1);
ratio = ratio * ratio * ratio * 0.4f;
ratio = max(ratio, 0.0f);
pointLightTotal.xyz += ratio * lightDot * pointLightColor1.xyz;

lightDelta = worldPos.xyz - pointLightPos2.xyz;
lightDot = max(dot(-normalize(lightDelta), worldNormal), 0.0f);
ratio = 1.0f - (length(lightDelta) / pointLightRadius2);
ratio = ratio * ratio * ratio * 0.4f;
ratio = max(ratio, 0.0f);
pointLightTotal.xyz += ratio * lightDot * pointLightColor2.xyz;

lightDelta = worldPos.xyz - pointLightPos3.xyz;
lightDot = max(dot(-normalize(lightDelta), worldNormal), 0.0f);
ratio = 1.0f - (length(lightDelta) / pointLightRadius3);
ratio = ratio * ratio * ratio * 0.4f;
ratio = max(ratio, 0.0f);
pointLightTotal.xyz += ratio * lightDot * pointLightColor3.xyz;

lightDelta = worldPos.xyz - pointLightPos4.xyz;
lightDot = max(dot(-normalize(lightDelta), worldNormal), 0.0f);
ratio = 1.0f - (length(lightDelta) / pointLightRadius4);
ratio = ratio * ratio * ratio * 0.4f;
ratio = max(ratio, 0.0f);
pointLightTotal.xyz += ratio * lightDot * pointLightColor4.xyz;

lightDelta = worldPos.xyz - pointLightPos5.xyz;
lightDot = max(dot(-normalize(lightDelta), worldNormal), 0.0f);
ratio = 1.0f - (length(lightDelta) / pointLightRadius5);
ratio = ratio * ratio * ratio * 0.4f;
ratio = max(ratio, 0.0f);
pointLightTotal.xyz += ratio * lightDot * pointLightColor5.xyz;

lightDelta = worldPos.xyz - pointLightPos6.xyz;
lightDot = max(dot(-normalize(lightDelta), worldNormal), 0.0f);
ratio = 1.0f - (length(lightDelta) / pointLightRadius6);
ratio = ratio * ratio * ratio * 0.4f;
ratio = max(ratio, 0.0f);
pointLightTotal.xyz += ratio * lightDot * pointLightColor6.xyz;

lightDelta = worldPos.xyz - pointLightPos7.xyz;
lightDot = max(dot(-normalize(lightDelta), worldNormal), 0.0f);
ratio = 1.0f - (length(lightDelta) / pointLightRadius7);
ratio = ratio * ratio * ratio * 0.4f;
ratio = max(ratio, 0.0f);
pointLightTotal.xyz += ratio * lightDot * pointLightColor7.xyz;

return pointLightTotal;
}

--- End code ---

Conan:
so wait

would it just be possible to like duplicate that code 20 times and then

do you know why that hasn't been done

Altiris:

--- Quote from: Port on July 26, 2013, 01:34:06 PM ---its 8

the sun isn't a light

it isn't an engine limitation

--- End quote ---
That's strange, a bunch of other people told me that it was 8 and the sun counted as a light or something, I don't know anymore. Why is that code in place if it limits the lights?

Wrapperup:

--- Quote from: Altiris on July 26, 2013, 03:02:27 PM ---That's strange, a bunch of other people told me that it was 8 and the sun counted as a light or something, I don't know anymore. Why is that code in place if it limits the lights?

--- End quote ---

My best guess is for faster shaders and shadows.

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