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#168 Added hacklish control over Fixed Function default light.

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This commit is contained in:
Jacob Støren 2016-08-15 14:26:44 +02:00
parent 20e7e9ec6e
commit 853e92723b
2 changed files with 30 additions and 5 deletions
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29
Fwk/VizFwk/LibViewing/cvfRenderSequence.cpp
View File

@ -59,8 +59,10 @@ namespace cvf {
//------------------------------------------------------------------------------------------------
///
//------------------------------------------------------------------------------------------------
RenderSequence::RenderSequence()
RenderSequence::RenderSequence()
: m_defaultGlLightPosition(0.5, 5.0, 7.0, 1.0) // Positional Headlight right, up, back from camera
{
}
@ -234,6 +236,25 @@ BoundingBox RenderSequence::boundingBox() const
}
//--------------------------------------------------------------------------------------------------
/// Todo: Replace with some renderstate object etc.
//--------------------------------------------------------------------------------------------------
void RenderSequence::setDefaultFFLightPositional(const Vec3f& position)
{
m_defaultGlLightPosition = Vec4f(position, 1.0);
}
//--------------------------------------------------------------------------------------------------
/// Todo: Replace with some renderstate object etc.
//--------------------------------------------------------------------------------------------------
void RenderSequence::setDefaultFFLightDirectional(const Vec3f& direction)
{
// The fourth value= 0.0 makes the light become a directional one,
// with direction from the position towards origo.
m_defaultGlLightPosition = Vec4f(-direction, 0.0);
}
//--------------------------------------------------------------------------------------------------
/// Get the performance info for the last rendering (last call to render()).
//--------------------------------------------------------------------------------------------------
@ -291,7 +312,7 @@ void RenderSequence::deleteOrReleaseOpenGLResources(OpenGLContext* oglContext)
/// in this function, but rather the ones that are likely to have been set by our caller and that
/// are likely to affect our rendering.
//--------------------------------------------------------------------------------------------------
void RenderSequence::preRenderApplyExpectedOpenGLState(OpenGLContext* oglContext)
void RenderSequence::preRenderApplyExpectedOpenGLState(OpenGLContext* oglContext) const
{
CVF_CALLSITE_OPENGL(oglContext);
CVF_CHECK_OGL(oglContext);
@ -341,8 +362,8 @@ void RenderSequence::preRenderApplyExpectedOpenGLState(OpenGLContext* oglContext
// TODO Work out a proper solution for this
// Should probably add some RenderState that encapsulates a light source
const Vec4f lightPosition(0.5f, 5.0f, 7.0f, 1.0f);
glLightfv(GL_LIGHT0, GL_POSITION, lightPosition.ptr());
glLightfv(GL_LIGHT0, GL_POSITION, m_defaultGlLightPosition.ptr());
const Vec3f spotDirection(0.0f, 0.0f, -1.0f);
glLightfv(GL_LIGHT0, GL_SPOT_DIRECTION, spotDirection.ptr());

6
Fwk/VizFwk/LibViewing/cvfRenderSequence.h
View File

@ -70,17 +70,21 @@ public:
BoundingBox boundingBox() const;
void setDefaultFFLightPositional(const Vec3f& position);
void setDefaultFFLightDirectional(const Vec3f& direction);
void render(OpenGLContext* oglContext);
const PerformanceInfo& performanceInfo() const;
void deleteOrReleaseOpenGLResources(OpenGLContext* oglContext);
private:
static void preRenderApplyExpectedOpenGLState(OpenGLContext* oglContext);
void preRenderApplyExpectedOpenGLState(OpenGLContext* oglContext) const;
private:
Collection<Rendering> m_renderings; // One rendering per render pass
PerformanceInfo m_performanceInfo; // Performance summary for this view
Vec4f m_defaultGlLightPosition; // Fixed function default setting for glLightfv(GL_LIGHT0, GL_POSITION, m_defaultGlLightPosition.ptr());
};
}