本文整理汇总了C++中Light::IsNegative方法的典型用法代码示例。如果您正苦于以下问题：C++ Light::IsNegative方法的具体用法？C++ Light::IsNegative怎么用？C++ Light::IsNegative使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Light的用法示例。
在下文中一共展示了Light::IsNegative方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: Prepare
void Batch::Prepare(View* view, bool setModelTransform) const
{
if (!vertexShader_ || !pixelShader_)
return;
Graphics* graphics = view->GetGraphics();
Renderer* renderer = view->GetRenderer();
Node* cameraNode = camera_ ? camera_->GetNode() : 0;
Light* light = lightQueue_ ? lightQueue_->light_ : 0;
Texture2D* shadowMap = lightQueue_ ? lightQueue_->shadowMap_ : 0;
// Set pass / material-specific renderstates
if (pass_ && material_)
{
bool isShadowPass = pass_->GetType() == PASS_SHADOW;
BlendMode blend = pass_->GetBlendMode();
// Turn additive blending into subtract if the light is negative
if (light && light->IsNegative())
{
if (blend == BLEND_ADD)
blend = BLEND_SUBTRACT;
else if (blend == BLEND_ADDALPHA)
blend = BLEND_SUBTRACTALPHA;
}
graphics->SetBlendMode(blend);
renderer->SetCullMode(isShadowPass ? material_->GetShadowCullMode() : material_->GetCullMode(), camera_);
if (!isShadowPass)
{
const BiasParameters& depthBias = material_->GetDepthBias();
graphics->SetDepthBias(depthBias.constantBias_, depthBias.slopeScaledBias_);
}
graphics->SetDepthTest(pass_->GetDepthTestMode());
graphics->SetDepthWrite(pass_->GetDepthWrite());
}
// Set shaders first. The available shader parameters and their register/uniform positions depend on the currently set shaders
graphics->SetShaders(vertexShader_, pixelShader_);
// Set global (per-frame) shader parameters
if (graphics->NeedParameterUpdate(SP_FRAME, (void*)0))
view->SetGlobalShaderParameters();
// Set camera shader parameters
unsigned cameraHash = overrideView_ ? (unsigned)(size_t)camera_ + 4 : (unsigned)(size_t)camera_;
if (graphics->NeedParameterUpdate(SP_CAMERA, reinterpret_cast<void*>(cameraHash)))
view->SetCameraShaderParameters(camera_, true, overrideView_);
// Set viewport shader parameters
IntVector2 rtSize = graphics->GetRenderTargetDimensions();
IntRect viewport = graphics->GetViewport();
unsigned viewportHash = (viewport.left_) | (viewport.top_ << 8) | (viewport.right_ << 16) | (viewport.bottom_ << 24);
if (graphics->NeedParameterUpdate(SP_VIEWPORT, reinterpret_cast<void*>(viewportHash)))
{
float rtWidth = (float)rtSize.x_;
float rtHeight = (float)rtSize.y_;
float widthRange = 0.5f * viewport.Width() / rtWidth;
float heightRange = 0.5f * viewport.Height() / rtHeight;
#ifdef URHO3D_OPENGL
Vector4 bufferUVOffset(((float)viewport.left_) / rtWidth + widthRange,
1.0f - (((float)viewport.top_) / rtHeight + heightRange), widthRange, heightRange);
#else
Vector4 bufferUVOffset((0.5f + (float)viewport.left_) / rtWidth + widthRange,
(0.5f + (float)viewport.top_) / rtHeight + heightRange, widthRange, heightRange);
#endif
graphics->SetShaderParameter(VSP_GBUFFEROFFSETS, bufferUVOffset);
float sizeX = 1.0f / rtWidth;
float sizeY = 1.0f / rtHeight;
graphics->SetShaderParameter(PSP_GBUFFERINVSIZE, Vector4(sizeX, sizeY, 0.0f, 0.0f));
}
// Set model or skinning transforms
if (setModelTransform && graphics->NeedParameterUpdate(SP_OBJECTTRANSFORM, worldTransform_))
{
if (geometryType_ == GEOM_SKINNED)
{
graphics->SetShaderParameter(VSP_SKINMATRICES, reinterpret_cast<const float*>(worldTransform_),
12 * numWorldTransforms_);
}
else
graphics->SetShaderParameter(VSP_MODEL, *worldTransform_);
// Set the orientation for billboards, either from the object itself or from the camera
if (geometryType_ == GEOM_BILLBOARD)
{
if (numWorldTransforms_ > 1)
graphics->SetShaderParameter(VSP_BILLBOARDROT, worldTransform_[1].RotationMatrix());
else
graphics->SetShaderParameter(VSP_BILLBOARDROT, cameraNode->GetWorldRotation().RotationMatrix());
}
}
// Set zone-related shader parameters
BlendMode blend = graphics->GetBlendMode();
// If the pass is additive, override fog color to black so that shaders do not need a separate additive path
bool overrideFogColorToBlack = blend == BLEND_ADD || blend == BLEND_ADDALPHA;
//.........这里部分代码省略.........
示例2: Prepare
void Batch::Prepare(View* view, Camera* camera, bool setModelTransform, bool allowDepthWrite) const
{
if (!vertexShader_ || !pixelShader_)
return;
Graphics* graphics = view->GetGraphics();
Renderer* renderer = view->GetRenderer();
Node* cameraNode = camera ? camera->GetNode() : 0;
Light* light = lightQueue_ ? lightQueue_->light_ : 0;
Texture2D* shadowMap = lightQueue_ ? lightQueue_->shadowMap_ : 0;
// Set shaders first. The available shader parameters and their register/uniform positions depend on the currently set shaders
graphics->SetShaders(vertexShader_, pixelShader_);
// Set pass / material-specific renderstates
if (pass_ && material_)
{
BlendMode blend = pass_->GetBlendMode();
// Turn additive blending into subtract if the light is negative
if (light && light->IsNegative())
{
if (blend == BLEND_ADD)
blend = BLEND_SUBTRACT;
else if (blend == BLEND_ADDALPHA)
blend = BLEND_SUBTRACTALPHA;
}
graphics->SetBlendMode(blend);
bool isShadowPass = pass_->GetIndex() == Technique::shadowPassIndex;
CullMode effectiveCullMode = pass_->GetCullMode();
// Get cull mode from material if pass doesn't override it
if (effectiveCullMode == MAX_CULLMODES)
effectiveCullMode = isShadowPass ? material_->GetShadowCullMode() : material_->GetCullMode();
renderer->SetCullMode(effectiveCullMode, camera);
if (!isShadowPass)
{
const BiasParameters& depthBias = material_->GetDepthBias();
graphics->SetDepthBias(depthBias.constantBias_, depthBias.slopeScaledBias_);
}
// Use the "least filled" fill mode combined from camera & material
graphics->SetFillMode((FillMode)(Max(camera->GetFillMode(), material_->GetFillMode())));
graphics->SetDepthTest(pass_->GetDepthTestMode());
graphics->SetDepthWrite(pass_->GetDepthWrite() && allowDepthWrite);
}
// Set global (per-frame) shader parameters
if (graphics->NeedParameterUpdate(SP_FRAME, (void*)0))
view->SetGlobalShaderParameters();
// Set camera & viewport shader parameters
unsigned cameraHash = (unsigned)(size_t)camera;
IntRect viewport = graphics->GetViewport();
IntVector2 viewSize = IntVector2(viewport.Width(), viewport.Height());
unsigned viewportHash = (unsigned)(viewSize.x_ | (viewSize.y_ << 16));
if (graphics->NeedParameterUpdate(SP_CAMERA, reinterpret_cast<const void*>(cameraHash + viewportHash)))
{
view->SetCameraShaderParameters(camera);
// During renderpath commands the G-Buffer or viewport texture is assumed to always be viewport-sized
view->SetGBufferShaderParameters(viewSize, IntRect(0, 0, viewSize.x_, viewSize.y_));
}
// Set model or skinning transforms
if (setModelTransform && graphics->NeedParameterUpdate(SP_OBJECT, worldTransform_))
{
if (geometryType_ == GEOM_SKINNED)
{
graphics->SetShaderParameter(VSP_SKINMATRICES, reinterpret_cast<const float*>(worldTransform_),
12 * numWorldTransforms_);
}
else
graphics->SetShaderParameter(VSP_MODEL, *worldTransform_);
// Set the orientation for billboards, either from the object itself or from the camera
if (geometryType_ == GEOM_BILLBOARD)
{
if (numWorldTransforms_ > 1)
graphics->SetShaderParameter(VSP_BILLBOARDROT, worldTransform_[1].RotationMatrix());
else
graphics->SetShaderParameter(VSP_BILLBOARDROT, cameraNode->GetWorldRotation().RotationMatrix());
}
}
// Set zone-related shader parameters
BlendMode blend = graphics->GetBlendMode();
// If the pass is additive, override fog color to black so that shaders do not need a separate additive path
bool overrideFogColorToBlack = blend == BLEND_ADD || blend == BLEND_ADDALPHA;
unsigned zoneHash = (unsigned)(size_t)zone_;
if (overrideFogColorToBlack)
zoneHash += 0x80000000;
if (zone_ && graphics->NeedParameterUpdate(SP_ZONE, reinterpret_cast<const void*>(zoneHash)))
{
graphics->SetShaderParameter(VSP_AMBIENTSTARTCOLOR, zone_->GetAmbientStartColor());
graphics->SetShaderParameter(VSP_AMBIENTENDCOLOR,
zone_->GetAmbientEndColor().ToVector4() - zone_->GetAmbientStartColor().ToVector4());
const BoundingBox& box = zone_->GetBoundingBox();
Vector3 boxSize = box.Size();
Matrix3x4 adjust(Matrix3x4::IDENTITY);
//.........这里部分代码省略.........