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debugdraw: Added solid fill alpha blend.

This commit is contained in:
Branimir Karadžić 2016-06-24 20:39:58 -07:00
parent d173832129
commit d2c6c79551
2 changed files with 6 additions and 4 deletions
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4
examples/29-debugdraw/debugdraw.cpp
View File

@ -152,12 +152,12 @@ class DebugDrawApp : public entry::AppI
ddDraw(sphere);
ddSetWireframe(false);
ddSetColor(0xf0ffc0ff);
ddSetColor(0xc0ffc0ff);
sphere.m_center[0] = -2.0f;
ddSetLod(2);
ddDraw(sphere);
ddSetColor(0xc0f0ffff);
ddSetColor(0xa0f0ffff);
sphere.m_center[0] = -4.0f;
ddSetLod(1);
ddDraw(sphere);

6
examples/common/debugdraw/debugdraw.cpp
View File

@ -1546,6 +1546,7 @@ private:
}
const float flip = 0 == (attrib.m_state & BGFX_STATE_CULL_CCW) ? 1.0f : -1.0f;
const uint8_t alpha = attrib.m_abgr>>24;
float params[4][4] =
{
@ -1571,7 +1572,7 @@ private:
( (attrib.m_abgr )&0xff)/255.0f,
( (attrib.m_abgr>> 8)&0xff)/255.0f,
( (attrib.m_abgr>>16)&0xff)/255.0f,
( (attrib.m_abgr>>24) )/255.0f,
( alpha )/255.0f,
},
};
@ -1583,7 +1584,8 @@ private:
bgfx::setVertexBuffer(m_vbh, mesh.m_startVertex, mesh.m_numVertices);
bgfx::setState(0
| attrib.m_state
| (_wireframe ? BGFX_STATE_PT_LINES|BGFX_STATE_LINEAA|BGFX_STATE_BLEND_ALPHA : 0)
| (_wireframe ? BGFX_STATE_PT_LINES|BGFX_STATE_LINEAA|BGFX_STATE_BLEND_ALPHA
: (alpha < 0xff) ? BGFX_STATE_BLEND_ALPHA : 0)
);
bgfx::submit(m_viewId, m_program[_wireframe ? Program::Fill : Program::FillLit]);
}