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BGE: support modifiers without mapping to original mesh both graphically and physically, fixes bug #24942 and #25286.

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Support for physics is done by skiping the modifiers that
don't support mapping to original mesh. This mapping is
required to report the hit polygon to the application
by the rayCast() function.

Support for graphics is done by using the same render
function that blender uses for the 3D view. This guantees
equal result.

Limitation: there is still a known bug if all these conditions are met:
- Display list enabled
- Old tex face with a several textures mapped to the same material
- no armature or shape keys
- active modifiers

In this case, only a part of the mesh will be rendered
with the wrong texture. To avoid this bug, use the GLSL
materials or make sure to have 1 material=1 texture in
your old tex face objects.
This commit is contained in:
Benoit Bolsee
2011-01-23 17:17:21 +00:00
parent fa38da021c
commit fc66b3f2ef
12 changed files with 104 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

33
source/gameengine/Rasterizer/RAS_OpenGLRasterizer/RAS_OpenGLRasterizer.cpp
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@@ -731,6 +731,7 @@ static RAS_MeshSlot *current_ms;
static RAS_MeshObject *current_mesh;
static int current_blmat_nr;
static GPUVertexAttribs current_gpu_attribs;
static Image *current_image;
static int CheckMaterialDM(int matnr, void *attribs)
{
// only draw the current material
@@ -769,6 +770,33 @@ static int CheckTexfaceDM(void *mcol, int index)
return 0;
}
static int CheckTexDM(MTFace *tface, MCol *mcol, int matnr)
{
// index is the original face index, retrieve the polygon
if (matnr == current_blmat_nr &&
(tface == NULL || tface->tpage == current_image)) {
// must handle color.
if (current_wireframe)
return 2;
if (current_ms->m_bObjectColor) {
MT_Vector4& rgba = current_ms->m_RGBAcolor;
glColor4d(rgba[0], rgba[1], rgba[2], rgba[3]);
// don't use mcol
return 2;
}
if (!mcol) {
// we have to set the color from the material
unsigned char rgba[4];
current_polymat->GetMaterialRGBAColor(rgba);
glColor4ubv((const GLubyte *)rgba);
return 2;
}
return 1;
}
return 0;
}
void RAS_OpenGLRasterizer::IndexPrimitivesInternal(RAS_MeshSlot& ms, bool multi)
{
bool obcolor = ms.m_bObjectColor;
@@ -807,7 +835,10 @@ void RAS_OpenGLRasterizer::IndexPrimitivesInternal(RAS_MeshSlot& ms, bool multi)
ms.m_pDerivedMesh->drawFacesGLSL(ms.m_pDerivedMesh, CheckMaterialDM);
GPU_set_material_blend_mode(current_blend_mode);
} else {
ms.m_pDerivedMesh->drawMappedFacesTex(ms.m_pDerivedMesh, CheckTexfaceDM, mcol);
//ms.m_pDerivedMesh->drawMappedFacesTex(ms.m_pDerivedMesh, CheckTexfaceDM, mcol);
current_blmat_nr = current_polymat->GetMaterialIndex();
current_image = current_polymat->GetBlenderImage();
ms.m_pDerivedMesh->drawFacesTex(ms.m_pDerivedMesh, CheckTexDM);
}
return;
}