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add texture support for cube, when using createCollisionShape(GEOM_BOX)

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This commit is contained in:
Erwin Coumans
2019-07-31 14:49:49 -07:00
parent 4429c6dc9e
commit 10153b3b3a
1 changed files with 55 additions and 2 deletions
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57
examples/ExampleBrowser/OpenGLGuiHelper.cpp
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@@ -144,6 +144,7 @@ struct MyHashShape
int m_shapeType; int m_shapeType;
btVector3 m_sphere0Pos; btVector3 m_sphere0Pos;
btVector3 m_sphere1Pos; btVector3 m_sphere1Pos;
btVector3 m_halfExtents;
btScalar m_radius0; btScalar m_radius0;
btScalar m_radius1; btScalar m_radius1;
btTransform m_childTransform; btTransform m_childTransform;
@@ -156,6 +157,7 @@ struct MyHashShape
m_shapeType(0), m_shapeType(0),
m_sphere0Pos(btVector3(0, 0, 0)), m_sphere0Pos(btVector3(0, 0, 0)),
m_sphere1Pos(btVector3(0, 0, 0)), m_sphere1Pos(btVector3(0, 0, 0)),
m_halfExtents(btVector3(0, 0, 0)),
m_radius0(0), m_radius0(0),
m_radius1(0), m_radius1(0),
m_deformFunc(0), m_deformFunc(0),
@@ -170,12 +172,13 @@ struct MyHashShape
bool sameShapeType = m_shapeType == other.m_shapeType; bool sameShapeType = m_shapeType == other.m_shapeType;
bool sameSphere0 = m_sphere0Pos == other.m_sphere0Pos; bool sameSphere0 = m_sphere0Pos == other.m_sphere0Pos;
bool sameSphere1 = m_sphere1Pos == other.m_sphere1Pos; bool sameSphere1 = m_sphere1Pos == other.m_sphere1Pos;
bool sameHalfExtents = m_halfExtents == other.m_halfExtents;
bool sameRadius0 = m_radius0 == other.m_radius0; bool sameRadius0 = m_radius0 == other.m_radius0;
bool sameRadius1 = m_radius1 == other.m_radius1; bool sameRadius1 = m_radius1 == other.m_radius1;
bool sameTransform = m_childTransform == other.m_childTransform; bool sameTransform = m_childTransform == other.m_childTransform;
bool sameUpAxis = m_upAxis == other.m_upAxis; bool sameUpAxis = m_upAxis == other.m_upAxis;
bool sameHalfHeight = m_halfHeight == other.m_halfHeight; bool sameHalfHeight = m_halfHeight == other.m_halfHeight;
return sameShapeType && sameSphere0 && sameSphere1 && sameRadius0 && sameRadius1 && sameTransform && sameUpAxis && sameHalfHeight; return sameShapeType && sameSphere0 && sameSphere1 && sameHalfExtents && sameRadius0 && sameRadius1 && sameTransform && sameUpAxis && sameHalfHeight;
} }
//to our success //to our success
SIMD_FORCE_INLINE unsigned int getHash() const SIMD_FORCE_INLINE unsigned int getHash() const
@@ -447,8 +450,56 @@ void OpenGLGuiHelper::createCollisionShapeGraphicsObject(btCollisionShape* colli
btAlignedObjectArray<GLInstanceVertex> gfxVertices; btAlignedObjectArray<GLInstanceVertex> gfxVertices;
btAlignedObjectArray<int> indices; btAlignedObjectArray<int> indices;
int strideInBytes = 9 * sizeof(float); int strideInBytes = 9 * sizeof(float);
//if (collisionShape->getShapeType()==BOX_SHAPE_PROXYTYPE) if (collisionShape->getShapeType() == BOX_SHAPE_PROXYTYPE)
{ {
btBoxShape* boxShape = (btBoxShape*)collisionShape;
btAlignedObjectArray<float> transformedVertices;
btVector3 halfExtents = boxShape->getHalfExtentsWithMargin();
MyHashShape shape;
shape.m_shapeType = boxShape->getShapeType();
shape.m_halfExtents = halfExtents;
shape.m_deformFunc = 0; ////no deform
int graphicsShapeIndex = -1;
int* graphicsShapeIndexPtr = m_data->m_hashShapes[shape];
if (graphicsShapeIndexPtr)
{
graphicsShapeIndex = *graphicsShapeIndexPtr;
}
else
{
int numVertices = sizeof(cube_vertices_textured) / strideInBytes;
transformedVertices.resize(numVertices * 9);
for (int i = 0; i < numVertices; i++)
{
btVector3 vert;
vert.setValue(cube_vertices_textured[i * 9 + 0],
cube_vertices_textured[i * 9 + 1],
cube_vertices_textured[i * 9 + 2]);
btVector3 trVer = halfExtents * vert;
transformedVertices[i * 9 + 0] = trVer[0];
transformedVertices[i * 9 + 1] = trVer[1];
transformedVertices[i * 9 + 2] = trVer[2];
transformedVertices[i * 9 + 3] = cube_vertices_textured[i * 9 + 3];
transformedVertices[i * 9 + 4] = cube_vertices_textured[i * 9 + 4];
transformedVertices[i * 9 + 5] = cube_vertices_textured[i * 9 + 5];
transformedVertices[i * 9 + 6] = cube_vertices_textured[i * 9 + 6];
transformedVertices[i * 9 + 7] = cube_vertices_textured[i * 9 + 7];
transformedVertices[i * 9 + 8] = cube_vertices_textured[i * 9 + 8];
}
int numIndices = sizeof(cube_indices) / sizeof(int);
graphicsShapeIndex = registerGraphicsShape(&transformedVertices[0], numVertices, cube_indices, numIndices, B3_GL_TRIANGLES, m_data->m_checkedTextureGrey);
m_data->m_hashShapes.insert(shape, graphicsShapeIndex);
}
collisionShape->setUserIndex(graphicsShapeIndex);
return;
} }
@@ -571,6 +622,8 @@ void OpenGLGuiHelper::createCollisionShapeGraphicsObject(btCollisionShape* colli
} }
} }
if (collisionShape->getShapeType() == SPHERE_SHAPE_PROXYTYPE) if (collisionShape->getShapeType() == SPHERE_SHAPE_PROXYTYPE)
{ {
btSphereShape* sphereShape = (btSphereShape*)collisionShape; btSphereShape* sphereShape = (btSphereShape*)collisionShape;