void ProjectiveTextureMethod::setRenderState(MethodVO* vo, IRenderable* renderable, IContext* context, Camera3D* camera)
{
Matrix3D projMatrix;
projMatrix.copyFrom(m_projector->getViewProjection());
projMatrix.prepend(renderable->getRenderSceneTransform(camera));
projMatrix.copyRawDataTo(vo->m_vertexData->data(), vo->m_vertexConstantsIndex, true);
}
void DirectionalLight::getObjectProjectionMatrix(IRenderable* renderable, Camera3D* camera, Matrix3D& result)
{
Matrix3D matrix(renderable->getRenderSceneTransform(camera));
matrix.append(getInverseSceneTransform());
float projAABBPoints[24];
BoundingVolumeBase* bounds = renderable->getSourceEntity()->getBounds();
matrix.transformVectors(bounds->getAABBPoints(), projAABBPoints, 8);
float xMin, yMin, zMin, xMax, yMax, zMax;
xMin = yMin = zMin = MathConsts::Infinity;
xMax = yMax = zMax = -MathConsts::Infinity;
for (int i = 0; i < 24;)
{
float d = projAABBPoints[i++];
if (d < xMin)
xMin = d;
if (d > xMax)
xMax = d;
d = projAABBPoints[i++];
if (d < yMin)
yMin = d;
if (d > yMax)
yMax = d;
d = projAABBPoints[i++];
if (d < zMin)
zMin = d;
if (d > zMax)
zMax = d;
}
float invXRange = 1 / (xMax - xMin);
float invYRange = 1 / (yMax - yMin);
float invZRange = 1 / (zMax - zMin);
float(&raw)[16] = result.m_rawData;
raw[0] = 2 * invXRange;
raw[5] = 2 * invYRange;
raw[10] = invZRange;
raw[12] = -(xMax + xMin) * invXRange;
raw[13] = -(yMax + yMin) * invYRange;
raw[14] = -zMin * invZRange;
raw[1] = raw[2] = raw[3] = raw[4] = raw[6] = raw[7] = raw[8] = raw[9] = raw[11] = 0;
raw[15] = 1;
result.prepend(matrix);
}
