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public GetLight ( int index ) : |
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| index | int | Ordinal value signifying the light to retreive, with 0 being closest, 1 being next closest, etc. |
| Результат | ||
/// <summary>
/// Updates the automatic light parameters based on the details provided.
/// </summary>
/// <param name="source">
/// A source containing all the updated data to be made available for auto updating
/// the GPU program constants.
/// </param>
public void UpdateAutoParamsLightsOnly( AutoParamDataSource source )
{
// return if no constants
if ( !this.HasAutoConstantType )
{
return;
}
PassIterationNumberIndex = int.MaxValue;
// loop through and update all constants based on their type
for ( int i = 0; i < autoConstantList.Count; i++ )
{
AutoConstantEntry entry = autoConstantList[ i ];
Vector3 vec3;
switch ( entry.Type )
{
case AutoConstantType.LightDiffuseColor:
SetConstant( entry.PhysicalIndex, source.GetLight( entry.Data ).Diffuse );
break;
case AutoConstantType.LightSpecularColor:
SetConstant( entry.PhysicalIndex, source.GetLight( entry.Data ).Specular );
break;
case AutoConstantType.LightPosition:
// Fix from Multiverse to enable Normal Mapping Sample Material from OGRE
SetConstant( entry.PhysicalIndex, source.GetLight( entry.Data ).GetAs4DVector() );
break;
case AutoConstantType.LightDirection:
vec3 = source.GetLight( 1 ).DerivedDirection;
SetConstant( entry.PhysicalIndex, vec3.x, vec3.y, vec3.z, 1.0f );
break;
case AutoConstantType.LightPositionObjectSpace:
SetConstant( entry.PhysicalIndex, source.InverseWorldMatrix * source.GetLight( entry.Data ).GetAs4DVector() );
break;
case AutoConstantType.LightDirectionObjectSpace:
vec3 = source.InverseWorldMatrix * source.GetLight( entry.Data ).DerivedDirection;
vec3.Normalize();
SetConstant( entry.PhysicalIndex, vec3.x, vec3.y, vec3.z, 1.0f );
break;
case AutoConstantType.LightDistanceObjectSpace:
vec3 = source.InverseWorldMatrix * source.GetLight( entry.Data ).DerivedPosition;
SetConstant( entry.PhysicalIndex, vec3.Length, 0f, 0f, 0f );
break;
case AutoConstantType.ShadowExtrusionDistance:
SetConstant( entry.PhysicalIndex, source.ShadowExtrusionDistance, 0f, 0f, 0f );
break;
case AutoConstantType.LightAttenuation:
Light light = source.GetLight( entry.Data );
SetConstant( entry.PhysicalIndex, light.AttenuationRange, light.AttenuationConstant, light.AttenuationLinear, light.AttenuationQuadratic );
break;
case AutoConstantType.LightPowerScale:
SetConstant( entry.PhysicalIndex, source.GetLightPowerScale( entry.Data ) );
break;
case AutoConstantType.WorldMatrix:
SetConstant( entry.PhysicalIndex, source.WorldMatrix );
break;
//case AutoConstantType.ViewProjMatrix:
// SetConstant( entry.PhysicalIndex, source.ViewProjectionMatrix );
// break;
case AutoConstantType.PassIterationNumber:
SetConstant(entry.PhysicalIndex, 0.0f);
PassIterationNumberIndex = entry.PhysicalIndex;
break;
}
}
}
/// <summary>
/// Updates the automatic light parameters based on the details provided.
/// </summary>
/// <param name="source">
/// A source containing all the updated data to be made available for auto updating
/// the GPU program constants.
/// </param>
public void UpdateAutoParamsLightsOnly(AutoParamDataSource source)
{
// return if no constants
if(!this.HasAutoConstants) {
return;
}
// loop through and update all constants based on their type
for(int constantIndex = 0; constantIndex < autoConstantList.Count; constantIndex++) {
AutoConstantEntry entry = (AutoConstantEntry)autoConstantList[constantIndex];
Vector3 vec3;
Light light;
int i;
switch(entry.type) {
case AutoConstants.LightDiffuseColor:
SetConstant(entry.index, source.GetLight(entry.data).Diffuse);
break;
case AutoConstants.LightSpecularColor:
SetConstant(entry.index, source.GetLight(entry.data).Specular);
break;
case AutoConstants.LightPosition:
SetConstant(entry.index, source.GetLight(entry.data).DerivedPosition);
break;
case AutoConstants.LightDirection:
vec3 = source.GetLight(entry.data).DerivedDirection;
SetConstant(entry.index, vec3.x, vec3.y, vec3.z, 1.0f);
break;
case AutoConstants.LightPositionObjectSpace:
SetConstant(entry.index, source.InverseWorldMatrix * source.GetLight(entry.data).GetAs4DVector());
break;
case AutoConstants.LightDirectionObjectSpace:
vec3 = source.InverseWorldMatrix * source.GetLight(entry.data).DerivedDirection;
vec3.Normalize();
SetConstant(entry.index, vec3.x, vec3.y, vec3.z, 1.0f);
break;
case AutoConstants.LightPositionViewSpace:
SetConstant(entry.index, source.ViewMatrix.TransformAffine(source.GetLight(entry.data).GetAs4DVector()));
break;
case AutoConstants.LightDirectionViewSpace:
vec3 = source.InverseViewMatrix.Transpose() * source.GetLight(entry.data).DerivedDirection;
vec3.Normalize();
SetConstant(entry.index, vec3.x, vec3.y, vec3.z, 1.0f);
break;
case AutoConstants.LightDistanceObjectSpace:
vec3 = source.InverseWorldMatrix * source.GetLight(entry.data).DerivedPosition;
SetConstant(entry.index, vec3.Length);
break;
case AutoConstants.ShadowExtrusionDistance:
SetConstant(entry.index, source.ShadowExtrusionDistance);
break;
case AutoConstants.ShadowSceneDepthRange:
SetConstant(entry.index, source.GetShadowSceneDepthRange(entry.data));
break;
case AutoConstants.LightPower:
SetConstant(entry.index, source.GetLight(entry.data).PowerScale);
break;
case AutoConstants.LightAttenuation:
light = source.GetLight(entry.data);
SetConstant(entry.index, light.AttenuationRange, light.AttenuationConstant, light.AttenuationLinear, light.AttenuationQuadratic);
break;
case AutoConstants.SpotlightParams:
light = source.GetLight(entry.data);
if (light.Type == LightType.Spotlight)
SetConstant(entry.index,
(float)Math.Cos(MathUtil.DegreesToRadians(light.SpotlightInnerAngle) * 0.5),
(float)Math.Cos(MathUtil.DegreesToRadians(light.SpotlightOuterAngle) * 0.5),
light.SpotlightFalloff,
1.0f);
else
SetConstant(entry.index, 1f, 0f, 0f, 1f);
break;
case AutoConstants.LightDiffuseColorArray:
for (i=0; i<entry.data; i++)
SetConstant(entry.index + i, source.GetLight(i).Diffuse);
break;
case AutoConstants.LightSpecularColorArray:
for (i=0; i<entry.data; i++)
SetConstant(entry.index + i, source.GetLight(i).Specular);
break;
case AutoConstants.LightPositionArray:
for (i=0; i<entry.data; i++)
SetConstant(entry.index + i, source.GetLight(i).DerivedPosition);
break;
case AutoConstants.LightDirectionArray:
for (i=0; i<entry.data; i++) {
vec3 = source.GetLight(i).DerivedDirection;
SetConstant(entry.index + i, vec3.x, vec3.y, vec3.z, 1.0f);
}
break;
case AutoConstants.LightPositionObjectSpaceArray:
for (i=0; i<entry.data; i++)
SetConstant(entry.index + i, source.ViewMatrix.TransformAffine(source.GetLight(i).GetAs4DVector()));
break;
case AutoConstants.LightDirectionObjectSpaceArray:
for (i=0; i<entry.data; i++) {
vec3 = source.InverseWorldMatrix.TransformAffine(source.GetLight(i).DerivedDirection);
SetConstant(entry.index + i, vec3.x, vec3.y, vec3.z, 1.0f);
}
break;
case AutoConstants.LightPositionViewSpaceArray:
for (i=0; i<entry.data; i++)
SetConstant(entry.index + i, source.ViewMatrix.TransformAffine(source.GetLight(i).GetAs4DVector()));
break;
case AutoConstants.LightDirectionViewSpaceArray:
for (i=0; i<entry.data; i++) {
vec3 = source.InverseViewMatrix.Transpose() * source.GetLight(i).DerivedDirection;
vec3.Normalize();
SetConstant(entry.index + i, vec3.x, vec3.y, vec3.z, 1.0f);
}
break;
case AutoConstants.LightDistanceObjectSpaceArray:
for (i=0; i<entry.data; i++) {
vec3 = source.InverseWorldMatrix * source.GetLight(i).DerivedPosition;
SetConstant(entry.index + i, vec3.Length);
}
break;
case AutoConstants.LightPowerArray:
for (i=0; i<entry.data; i++)
SetConstant(entry.index + i, source.GetLight(i).PowerScale);
break;
case AutoConstants.LightAttenuationArray:
for (i=0; i<entry.data; i++) {
light = source.GetLight(i);
SetConstant(entry.index + i, light.AttenuationRange, light.AttenuationConstant, light.AttenuationLinear, light.AttenuationQuadratic);
}
break;
case AutoConstants.SpotlightParamsArray:
for (i=0; i<entry.data; i++) {
light = source.GetLight(i);
if (light.Type == LightType.Spotlight)
SetConstant(entry.index + 1,
(float)Math.Cos(MathUtil.DegreesToRadians(light.SpotlightInnerAngle) * 0.5),
(float)Math.Cos(MathUtil.DegreesToRadians(light.SpotlightOuterAngle) * 0.5),
light.SpotlightFalloff,
1.0f);
else
SetConstant(entry.index + i, 1f, 0f, 0f, 1f);
}
break;
case AutoConstants.DerivedLightDiffuseColor:
SetConstant(entry.index, source.GetLight(entry.data).Diffuse * source.CurrentPass.Diffuse);
break;
case AutoConstants.DerivedLightSpecularColor:
SetConstant(entry.index, source.GetLight(entry.data).Diffuse * source.CurrentPass.Specular);
break;
case AutoConstants.DerivedLightDiffuseColorArray:
for (i=0; i<entry.data; i++) {
light = source.GetLight(i);
SetConstant(entry.index + i, light.Diffuse * source.CurrentPass.Diffuse);
}
break;
case AutoConstants.DerivedLightSpecularColorArray:
for (i=0; i<entry.data; i++) {
light = source.GetLight(i);
SetConstant(entry.index + i, light.Specular * source.CurrentPass.Diffuse);
}
break;
case AutoConstants.TextureViewProjMatrix:
SetConstant(entry.index, source.GetTextureViewProjectionMatrix(entry.data));
break;
default:
// do nothing
break;
}
}
}