//===========================================================================//
// Copyright (C) Microsoft Corporation. All rights reserved. //
//===========================================================================//
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
void
CLASSNAME::Lighting (
MLRLight* const* lights,
int nrLights
)
{
Check_Object(this);
//
//----------------------------------------------------------------------
// If no lights or normals are specified, use the original vertex colors
//----------------------------------------------------------------------
//
actualColors = &colors;
int state_mask = GetCurrentState().GetLightingMode();
if (nrLights == 0 || normals.GetLength() == 0 || state_mask == MLRState::LightingOffMode)
return;
Check_Pointer(lights);
//
//-------------------------------
// See if we need vertex lighting
//-------------------------------
//
if (state_mask & MLRState::VertexLightingMode)
{
Verify(colors.GetLength() == litColors.GetLength());
Verify(normals.GetLength() == colors.GetLength());
Verify(coords.GetLength() == colors.GetLength());
int i, k, len = colors.GetLength();
MLRVertexData vertexData;
#if COLOR_AS_DWORD
TO_DO;
#else
RGBAColor *color = &colors[0];
#endif
//
//--------------------------------
// Now light the array of vertices
//--------------------------------
//
vertexData.point = &coords[0];
vertexData.color = &litColors[0];
vertexData.normal = &normals[0];
for(k=0;k<len;k++)
{
if(visibleIndexedVertices[k] != 0)
{
vertexData.color->red = 0.0f;
vertexData.color->green = 0.0f;
vertexData.color->blue = 0.0f;
vertexData.color->alpha = color->alpha;
for (i=0;i<nrLights;i++)
{
MLRLight *light = lights[i];
Check_Object(light);
int mask = state_mask & light->GetLightMask();
if (!mask)
continue;
if (mask&MLRState::VertexLightingMode)
{
if (
GetCurrentState().GetBackFaceMode() != MLRState::BackFaceOffMode
|| light->GetLightType() == MLRLight::AmbientLight
)
{
light->LightVertex(vertexData);
Set_Statistic(LitVertices, LitVertices+1);
}
}
}
}
vertexData.point++;
vertexData.color++;
vertexData.normal++;
color++;
}
actualColors = &litColors;
}
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
void
MLRIndexedPolyMesh::Lighting (
MLRLight **lights,
int nrLights
)
{
Check_Object(this);
// set the to use colors to the original colors ...
// only lighting could overwrite this;
actualColors = &colors;
if(nrLights == 0)
{
return;
}
if(normals.GetLength() == 0)
{
return;
}
if(lights == NULL)
{
return;
}
switch (GetCurrentState().GetLightingMode())
{
case MLRState::LightingOffMode:
return;
case MLRState::LightingClassicOnlyMode:
{
Verify(colors.GetLength() == litColors.GetLength());
Verify(normals.GetLength() == colors.GetLength());
Verify(coords.GetLength() == colors.GetLength());
int i, k, len = colors.GetLength();
MLRVertexData vertexData;
#if COLOR_AS_DWORD
TO_DO;
#else
RGBAColor *color = &colors[0];
RGBAColor *litColor = &litColors[0];
#if USE_ASSEMBLER_CODE
_asm {
push esi
push edi
mov esi, color
mov edi, litColor
mov ecx, len
_loop1:
mov eax, dword ptr [esi]
mov ebx, dword ptr [esi+4]
mov dword ptr [edi], eax
mov dword ptr [edi+ 4], ebx
mov eax, dword ptr [esi + 8]
mov ebx, dword ptr [esi + 12]
mov dword ptr [edi + 8], eax
mov dword ptr [edi + 12], ebx
add esi,16
add edi,16
dec ecx
jnz _loop1
pop edi
pop esi
}
#else // it doesnt know that ...
memcpy(litColor, color, (len<<2)*sizeof(Scalar));
#endif
#endif
//
//-----------------------------------
// Test each light against the vertex
//-----------------------------------
//
for (i=0;i<nrLights;i++)
{
MLRLight *light = lights[i];
Check_Object(light);
vertexData.point = &coords[0];
vertexData.color = &litColors[0];
vertexData.normal = &normals[0];
for(k=0;k<len;k++)
{
if(visibleIndexedVertices[k] != 0)
{
light->LightVertex(vertexData);
}
vertexData.point++;
vertexData.color++;
vertexData.normal++;
}
}
#ifdef LAB_ONLY
Statistics::MLR_LitVertices += len*nrLights;
#endif
// set the to use colors to the original colors ...
// only lighting could overwrite this;
actualColors = &litColors;
}
break;
case MLRState::LightingLightMapOnlyMode:
{
Verify(state.GetAlphaMode() == MLRState::OneZeroMode);
int i;
for (i=0;i<nrLights;i++)
{
LightMapLighting(lights[i]);
}
}
break;
case MLRState::LightingClassicAndLightMapMode:
{
Verify(state.GetAlphaMode() == MLRState::OneZeroMode);
Verify(colors.GetLength() == litColors.GetLength());
Verify(normals.GetLength() == colors.GetLength());
Verify(coords.GetLength() == colors.GetLength());
int i, k, len = colors.GetLength();
MLRVertexData vertexData;
#if COLOR_AS_DWORD
TO_DO;
#else
RGBAColor *color = &colors[0];
RGBAColor *litColor = &litColors[0];
#if USE_ASSEMBLER_CODE
_asm {
push esi
push edi
mov esi, color
mov edi, litColor
mov ecx, len
_loop2:
mov eax, dword ptr [esi]
mov ebx, dword ptr [esi+4]
mov dword ptr [edi], eax
mov dword ptr [edi+ 4], ebx
mov eax, dword ptr [esi + 8]
mov ebx, dword ptr [esi + 12]
mov dword ptr [edi + 8], eax
mov dword ptr [edi + 12], ebx
add esi,16
add edi,16
dec ecx
jnz _loop2
pop edi
pop esi
}
#else // it doesnt know that ...
memcpy(litColor, color, (len<<2)*sizeof(Scalar));
#endif
#endif
//
//-----------------------------------
// Test each light against the vertex
//-----------------------------------
//
for (i=0;i<nrLights;i++)
{
MLRLight *light = lights[i];
Check_Object(light);
vertexData.point = &coords[0];
vertexData.color = &litColors[0];
vertexData.normal = &normals[0];
for(k=0;k<len;k++)
{
light->LightVertex(vertexData);
vertexData.point++;
vertexData.color++;
vertexData.normal++;
}
}
#ifdef LAB_ONLY
Statistics::MLR_LitVertices += len*nrLights;
#endif
// set the to use colors to the original colors ...
// only lighting could overwrite this;
actualColors = &litColors;
STOP(("Lightmaps not implemented yet."));
}
break;
}
}
