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// Shave and a Haircut
// (c) 2019 Epic Games
// US Patent 6720962
#include "shaveGlobals.h"
#include "shaveShadowNode.h"
#include "shaveUtil.h"
MTypeId shaveShadowNode::id(0x00106502);
void shaveShadowNode::postConstructor( )
{
setMPSafe(true);
}
const MString shaveShadowNode::nodeTypeName("shaveShadowNode");
MObject shaveShadowNode::IntensityValue;
MObject shaveShadowNode::aPointWorld;
MObject shaveShadowNode::aPointWorldX;
MObject shaveShadowNode::aPointWorldY;
MObject shaveShadowNode::aPointWorldZ;
MObject shaveShadowNode::colorR;
MObject shaveShadowNode::colorG;
MObject shaveShadowNode::colorB;
MObject shaveShadowNode::shadColorR;
MObject shaveShadowNode::shadColorG;
MObject shaveShadowNode::shadColorB;
MObject shaveShadowNode::lightID;
MObject shaveShadowNode::aOutIntensity;
MObject shaveShadowNode::aOutColorR;
MObject shaveShadowNode::aOutColorG;
MObject shaveShadowNode::aOutColorB;
MObject shaveShadowNode::aOutColor;
MObject shaveShadowNode::color;
MObject shaveShadowNode::shadColor;
//
// DESCRIPTION:
///////////////////////////////////////////////////////
shaveShadowNode::shaveShadowNode()
{
}
//
// DESCRIPTION:
///////////////////////////////////////////////////////
shaveShadowNode::~shaveShadowNode()
{
}
//
// DESCRIPTION:
///////////////////////////////////////////////////////
void* shaveShadowNode::creator()
{
return new shaveShadowNode();
}
MStatus shaveShadowNode::initialize()
{
MFnNumericAttribute nAttr;
// User defined input value
IntensityValue = nAttr.create( "Intensity", "int", MFnNumericData::kFloat);
nAttr.setDefault(1.0f);
nAttr.setMin(0.0f);
nAttr.setMax(30.0f);
nAttr.setKeyable(true);
nAttr.setStorable(true);
nAttr.setReadable(true);
nAttr.setWritable(true);
colorB = nAttr.create( "colorB", "cB", MFnNumericData::kFloat);
nAttr.setDefault(1.0f);
nAttr.setMin(0.0f);
nAttr.setMax(1.0f);
nAttr.setKeyable(true);
nAttr.setStorable(true);
nAttr.setReadable(true);
nAttr.setWritable(true);
colorG = nAttr.create( "colorG", "cG", MFnNumericData::kFloat);
nAttr.setDefault(1.0f);
nAttr.setMin(0.0f);
nAttr.setMax(1.0f);
nAttr.setKeyable(true);
nAttr.setStorable(true);
nAttr.setReadable(true);
nAttr.setWritable(true);
colorR = nAttr.create( "colorR", "cR", MFnNumericData::kFloat);
nAttr.setDefault(1.0f);
nAttr.setMin(0.0f);
nAttr.setMax(1.0f);
nAttr.setKeyable(true);
nAttr.setStorable(true);
nAttr.setReadable(true);
nAttr.setWritable(true);
shadColorB = nAttr.create( "shadowColorB", "scB", MFnNumericData::kFloat);
nAttr.setDefault(1.0f);
nAttr.setMin(0.0f);
nAttr.setMax(1.0f);
nAttr.setKeyable(true);
nAttr.setStorable(true);
nAttr.setReadable(true);
nAttr.setWritable(true);
shadColorG = nAttr.create( "shadowColorG", "scG", MFnNumericData::kFloat);
nAttr.setDefault(1.0f);
nAttr.setMin(0.0f);
nAttr.setMax(1.0f);
nAttr.setKeyable(true);
nAttr.setStorable(true);
nAttr.setReadable(true);
nAttr.setWritable(true);
shadColorR = nAttr.create( "shadowColorR", "scR", MFnNumericData::kFloat);
nAttr.setDefault(1.0f);
nAttr.setMin(0.0f);
nAttr.setMax(1.0f);
nAttr.setKeyable(true);
nAttr.setStorable(true);
nAttr.setReadable(true);
nAttr.setWritable(true);
aOutColorB = nAttr.create( "outColorB", "ocB", MFnNumericData::kFloat);
nAttr.setKeyable(false);
nAttr.setStorable(false);
nAttr.setReadable(true);
nAttr.setWritable(false);
aOutColorG = nAttr.create( "outColorG", "ocG", MFnNumericData::kFloat);
nAttr.setKeyable(false);
nAttr.setStorable(false);
nAttr.setReadable(true);
nAttr.setWritable(false);
aOutColorR = nAttr.create( "outColorR", "ocR", MFnNumericData::kFloat);
nAttr.setKeyable(false);
nAttr.setStorable(false);
nAttr.setReadable(true);
nAttr.setWritable(false);
aOutColor = nAttr.create( "outColor", "oc", aOutColorR, aOutColorG, aOutColorB);
nAttr.setKeyable(false);
nAttr.setStorable(false);
nAttr.setReadable(true);
nAttr.setWritable(false);
shadColor = nAttr.create( "shadColor", "sc", shadColorR, shadColorG, shadColorB);
nAttr.setStorable(true);
nAttr.setUsedAsColor(true);
nAttr.setKeyable(true);
color = nAttr.create( "color", "col", colorR, colorG, colorB);
nAttr.setStorable(true);
nAttr.setUsedAsColor(true);
nAttr.setKeyable(true);
lightID = nAttr.create( "LightID", "lid", MFnNumericData::kShort);
nAttr.setDefault((short)0);
nAttr.setStorable(true);
nAttr.setReadable(true);
nAttr.setWritable(true);
// Point on surface in camera space, will be used to compute view vector
aPointWorldX = nAttr.create( "pointWorldX", "px", MFnNumericData::kFloat);
nAttr.setStorable(false);
nAttr.setHidden(true);
aPointWorldY = nAttr.create( "pointWorldY", "py", MFnNumericData::kFloat);
nAttr.setStorable(false);
nAttr.setHidden(true);
aPointWorldZ = nAttr.create( "pointWorldZ", "pz", MFnNumericData::kFloat);
nAttr.setStorable(false);
nAttr.setHidden(true);
aPointWorld = nAttr.create( "pointWorld","p", aPointWorldX,
aPointWorldY, aPointWorldZ);
nAttr.setStorable(false);
nAttr.setHidden(true);
nAttr.setReadable(true);
nAttr.setWritable(true);
// Outputs
//
// Always set your output attributes to be read-only
// You should also mark any internal attributes that your node
// computes to be read-only also, this will prevent any connections.
aOutIntensity = nAttr.create( "outIntensity", "oi", MFnNumericData::kFloat);
nAttr.setStorable(false);
nAttr.setHidden(false);
nAttr.setReadable(true);
nAttr.setWritable(false);
addAttribute(aOutColor);
addAttribute(shadColor);
addAttribute(color);
addAttribute(IntensityValue);
addAttribute(aPointWorld);
addAttribute(aOutIntensity);
addAttribute(lightID);
attributeAffects (IntensityValue, aOutColor);
attributeAffects (aPointWorldX, aOutColorB);
attributeAffects (aPointWorldY, aOutColorB);
attributeAffects (aPointWorldZ, aOutColorB);
attributeAffects (aPointWorld, aOutColorB);
attributeAffects (aPointWorldX, aOutColorR);
attributeAffects (aPointWorldY, aOutColorR);
attributeAffects (aPointWorldZ, aOutColorR);
attributeAffects (aPointWorld, aOutColorR);
attributeAffects (aPointWorldX, aOutColorG);
attributeAffects (aPointWorldY, aOutColorG);
attributeAffects (aPointWorldZ, aOutColorG);
attributeAffects (aPointWorld, aOutColorG);
attributeAffects (shadColorR, aOutColor);
attributeAffects (colorR, aOutColor);
return MS::kSuccess;
}
//
// DESCRIPTION:
///////////////////////////////////////////////////////
MStatus shaveShadowNode::compute(
const MPlug& plug,
MDataBlock& block )
{
bool k = false;
k |= (plug == aOutColor);
k |= (plug == aOutColorR);
k |= (plug == aOutColorG);
k |= (plug == aOutColorB);
if( !k ) return MS::kUnknownParameter;
short lightIndex = block.inputValue ( lightID ).asShort();
VERT wpoint;
wpoint.x = block.inputValue( aPointWorldX ).asFloat();
wpoint.y = block.inputValue( aPointWorldY ).asFloat();
wpoint.z = block.inputValue( aPointWorldZ ).asFloat();
float cR = block.inputValue( colorR ).asFloat();
float cG = block.inputValue( colorG ).asFloat();
float cB = block.inputValue( colorB ).asFloat();
float sCR = block.inputValue( shadColorR ).asFloat();
float sCG = block.inputValue( shadColorG ).asFloat();
float sCB = block.inputValue( shadColorB ).asFloat();
float shadow;
//
// We need to get the shadow density from the shaveGlobals node.
// However, it would be too expensive to call
// shaveGlobals::getGlobals() on every iteration of compute, so
// shaveRender::frameStart() does it for us, so we can just use the
// result global vars.
//
if (shaveShadowDensityGlob > 0.0)
{
float illum = 1255.0f;
int id;
int minId = shaveUtil::globalLightList[lightIndex].minId;
int maxId = shaveUtil::globalLightList[lightIndex].maxId;
float temp=10000.0;
for (id = minId; id <= maxId; id++)
{
temp = SHAVEilluminate_point(wpoint, id);
if (temp < illum) illum = temp; // changed max to min
}
shadow = (1.0f - illum) * shaveShadowDensityGlob;
}
else
shadow = shaveShadowDensityGlob;
MDataHandle outColorRHandle = block.outputValue( aOutColorR );
float& oCR = outColorRHandle.asFloat();
MDataHandle outColorGHandle = block.outputValue( aOutColorG );
float& oCG = outColorGHandle.asFloat();
MDataHandle outColorBHandle = block.outputValue( aOutColorB );
float& oCB = outColorBHandle.asFloat();
oCR = cR + (sCR - cR) * shadow;
oCG = cG + (sCG - cG) * shadow;
oCB = cB + (sCB - cB) * shadow;
outColorRHandle.setClean();
outColorGHandle.setClean();
outColorBHandle.setClean();
return MS::kSuccess;
}
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